m-2323b application guide - beckwith electric of the westing house control .....11 installing the...

Application Guide

M-2323B Adapter Panel

Industry Leader Since 1969Made in the USA

Adapter PanelM-2323BAdapts M-2001 Series Digital Tapchanger Controlto Replace Westinghouse Type URL Regulator Controls

• Connects easily to theM-2001 Series DigitalTapchanger Controlusing mounting screwsand 24-pin connector

• Provides direct mechanicalreplacement of the oldregulator control usingthe same two hinge pins

• Provides built-in CT shortingprotection when the M-2001Series Digital TapchangerControl is removed

• Optional SCADA Cutout(Local/Remote) switch(for use with SCADA enabledM-2001C controls) allowsLocal Blocking of SCADAcommands

CONTROLS

• Optional SCAMPTM (SCADA Controllable Auto/Manual Pushbutton)switch replaces AUTO/OFF/MANUAL toggle switch

• Optional 2 Level Local Voltage Reduction switch

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The M-2323B is an adapter panel which, when combined with the M-2001 Series Digital Tapchanger Control,provides convenient direct replacement of Westinghouse Type URL regulator controls. The M-2323B consists ofa front panel with pin catch brackets that receive the existing panel mounting pins.

InterfaceExternal connections are made using a wiring harness that connects from the M-2323B terminal block to the"URL-16" terminal block, "Shorting Switch" and "F1, F2" terminals on the existing control cabinet. An additionalterminal block provides auxiliary functions, including self-test alarm, user-programmable alarm, auto disable andmanual raise/lower.

FeaturesSeparate fuses for test terminal, voltage sensing and motor power are on the front panel, and spare fuses foreach are in the fuse holder. The M-2323B also includes a 10 A Circuit Breaker for motor power.

Binding posts on the front panel allow easy connections for test procedures.

RAISE/OFF/LOWER, AUTO/OFF/MANUAL and VOLTAGE SOURCE switches, DRAG HANDS RESETpushbutton, and NEUTRAL LIGHT are standard.

NEUTRAL LIGHT will light to indicate that the regulator is in the neutral position, for those regulators equippedwith a circuit for this purpose.

OptionsSCADA CUTOUT switch allows Local blocking of SCADA commands (for use with SCADA enabled M-2001Ccontrols). The SCADA Cutout switch must be used with a M-2001 Series Control with firmware versionD-0146V08.01.22 or later installed.

SCAMPTM (SCADA Controllable Auto/Manual Pushbutton) switch allows the Auto/Manual state on the adapterpanel to be changed by a SCADA command. The SCAMP pushbutton switch must be used with a M-2001 SeriesControl with firmware version D-0146V08.05.XX or later installed.

Voltage Reduction switch allows 2 levels of Voltage Reduction to be selected.

Testing SpecificationsHigh Voltage: All input and output terminals will withstand 1500 V ac rms to chassis or instrument ground for oneminute with a leakage current not to exceed 25 mA, for all terminals to ground. Input and output circuits areelectrically isolated from each other, from other circuits and from ground.

Surge Withstand Capability: All input and output circuits are protected against system transients. Units passall requirements of ANSI/IEEE C.37.90.1-1989 defining surge withstand capability.

Radiated Electromagnetic Withstand Capability: All units are protected against electromagnetic radiatedinterference from portable communications transceivers.

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EnvironmentalTemperature Range: Functionality is maintained from –40° to +85° C.Humidity: Functionality is maintained under 95% relative humidity (non-condensing).Fungus Resistance: A conformal printed circuit board coating inhibits fungal growth.

PhysicalSize with M-2001 Series Digital Tapchanger Control: 19.08" high x 13.00" wide x 3.82" deep(48.5 cm x 33.0 cm x 9.75 cm)Approximate Weight: 2 lbs, 7 oz (1.11 kg)Approximate Shipping Weight: 5 lbs, 7 oz (2.47 kg)Approximate Weight with M-2001 Series Digital Tapchanger Control: 6 lbs, 2 oz (2.78 kg)Approximate Shipping Weight with M-2001 Series Digital Tapchanger Control: 11 lbs, 2 oz (5.05 kg)

WarrantyThe M-2323B Adapter Panel is covered by a five year warranty from date of shipment.

Specification is subject to change without notice.

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DANGER! HIGH VOLTAGE

– This sign warns that the area is connected to a dangerous high voltage, and youmust never touch it.

PERSONNEL SAFETY PRECAUTIONSThe following general rules and other specific warnings throughout the manual must be followed during application,test or repair of this equipment. Failure to do so will violate standards for safety in the design, manufacture, and intendeduse of the product. Qualified personnel should be the only ones who operate and maintain this equipment. BeckwithElectric Co., Inc. assumes no liability for the customer’s failure to comply with these requirements.

– This sign means that you should refer to the corresponding section of the operation

manual for important information before proceeding.

Always Ground the Equipment

To avoid possible shock hazard, the chassis must be connected to an electrical ground. When servicingequipment in a test area, the Protective Earth Terminal must be attached to a separate ground securelyby use of a tool, since it is not grounded by external connectors.

Do NOT operate in an explosive environmentDo not operate this equipment in the presence of flammable or explosive gases or fumes. To do so wouldrisk a possible fire or explosion.

Keep away from live circuitsOperating personnel must not remove the cover or expose the printed circuit board while power is ap-plied. In no case may components be replaced with power applied. In some instances, dangerous volt-ages may exist even when power is disconnected. To avoid electrical shock, always disconnect power anddischarge circuits before working on the unit.

Exercise care during installation, operation, & maintenance proceduresThe equipment described in this manual contains voltages high enough to cause serious injury or death.Only qualified personnel should install, operate, test, and maintain this equipment. Be sure that all per-sonnel safety procedures are carefully followed. Exercise due care when operating or servicing alone.

Do not modify equipmentDo not perform any unauthorized modifications on this instrument. Return of the unit to a BeckwithElectric repair facility is preferred. If authorized modifications are to be attempted, be sure to followreplacement procedures carefully to assure that safety features are maintained.

PRODUCT CAUTIONSBefore attempting any test, calibration, or maintenance procedure, personnel must be completely familiarwith the particular circuitry of this unit, and have an adequate understanding of field effect devices. If acomponent is found to be defective, always follow replacement procedures carefully to that assure safetyfeatures are maintained. Always replace components with those of equal or better quality as shown in theParts List of the Instruction Book.

Avoid static chargeThis unit contains MOS circuitry, which can be damaged by improper test or rework procedures. Careshould be taken to avoid static charge on work surfaces and service personnel.

Use caution when measuring resistancesAny attempt to measure resistances between points on the printed circuit board, unless otherwise notedin the Instruction Book, is likely to cause damage to the unit.

TABLE OF CONTENTSM-2323B ADAPTER PANEL

Application Guide

(#02-88)

1.0 Introduction ...........................................................................................................1

1.1 Description ............................................................................................................1Standard Features ................................................................................................1Control Switches ...................................................................................................1Binding Posts .......................................................................................................2Status Indicators ...................................................................................................2Optional Control Switches .....................................................................................2

2.0 Application ............................................................................................................2Lightning Protection ..............................................................................................2External Connections ............................................................................................2Neutral Light Circuit ...............................................................................................3Non-Sequential Operation (N/A for BASE-R or BASE-RS) ....................................3Automatic Disable Input ........................................................................................3Operations Counter Input ......................................................................................3Local/Remote Input ...............................................................................................3Multi-Step Voltage Reduction ................................................................................3Paralleling (N/A for BASE-R and BASE-RS Controls) ...........................................3Disabling Auto/Off/Manual Toggle Switch Status Detection..................................4Operations Counter Input ......................................................................................4Table 1 Multi-Step Voltage Reduction External Connections ..............................4Connections for LTC Transformers and Regulators ...............................................4Use of the M-0329 LTC Backup Control with the Tapchanger Control ...................4Figure 1 M-2001C and M-2323B Adapter Panel with Standard Auto/Off/ManualToggle Switch and Optional Voltage Reduction and SCADA Cutout Switches ......5Figure 2 M-2001C and M-2323B Adapter Panel with Optional SCAMPTMAuto/Manual, SCADA Cutout and Voltage Reduction Switches ............................6Figure 3 External Connections ............................................................................7Figure 4 M-2323B Wiring Harness with Standard Auto/Off/Manual ToggleSwitch, Optional Voltage Reduction and SCADA Cutout Switches .......................8Figure 5 M-2323B Wiring Harness with Optional SCAMPTM Auto/ManualPushbutton Switch, Voltage Reduction and SCADA Cutout Switches ..................9Figure 6 Tapchanger Control and LTC Backup Control Interconnections .......... 10

3.0 Installation .......................................................................................................... 11Removal of the Westinghouse Control ................................................................ 11Installing the M-2323B/M-2001 ........................................................................... 11Figure 7 M-2001 Harness Connector ................................................................ 11Figure 8 M-2001 V-Notch Orientation ................................................................ 11Figure 9 Outline Dimensions ............................................................................. 12

© 2006 Beckwith Electric Co.Printed in USA

800‑2323B‑AG‑02MC4 09/14

4.0 M-2001 Tapchanger Control Software Settings ...................................................13

4.1 M-0329 LTC Backup Control Settings..................................................................13

5.0 Bench Test (M-2001 Connected to M-2323B) .....................................................14Test Equipment ....................................................................................................14Setup ...................................................................................................................14Table 2 Initial Settings .......................................................................................14Procedure ............................................................................................................14Resistance ...........................................................................................................14Figure 10 M-2323B Test Procedure External Connection ..................................15Reactance ...........................................................................................................16Voltage Source Switch .........................................................................................16Drag Hands Reset ...............................................................................................16Counter/Neutral Light/Tap Position ......................................................................16Block Raise/Block Lower/Dead Band ..................................................................16

5.1 Checkout Procedure ............................................................................................17Pre-Test Conditions .............................................................................................17Power ...................................................................................................................17Load Current CT ..................................................................................................17LDC .....................................................................................................................17Figure 11 Setup for Current Checkout Procedure ............................................18

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M-2323B Application Guide

1.0 Introduction

The Beckwith Electric M-2323B Adapter Panel,used in conjunction with the M-2001 TapchangerControl, uses modern electronic digital design anddigital processing circuitry to achieve an overallstability and resolution unattainable withelectromechanical and analog design tapchangercontrols. CMOS semiconductors are used throughoutthe design.

1.1 Description

Standard FeaturesThe M-2323B Adapter Panel, with the M-2001Tapchanger Control, provides a solid-state voltagecontrol relay designed to replace the WestinghouseType URL Regulator Control. The combination ofthe Tapchanger Control and Adapter Panel includesthe following features:

• Voltage waveform sampling and digitalprocessing circuitry ensure accurate rmsvoltage sensing in the presence ofdistortion on the input voltage and current.

• Control accuracy is 0.3 % when testedin accordance with the ANSI/IEEEC57.15.9-1999 standard over atemperature range of –30° C to +65° C.The control accuracy is 0.5 % whentested over the full operational temperaturerange of –40° C to +85° C.

• Input and output circuits are protectedagainst system transients. Units passall requirements of ANSI/IEEEC37.90.1-1989, which defines surgewithstand capability. All input and outputterminals will withstand 1500 V ac rms tochassis or instrument ground for oneminute with a leakage current not to exceed25 mA, for all terminals to ground. Inputand output circuits are electrically isolatedfrom each other, from other circuits andfrom ground.

The M-2323B Adapter Panel factory configurationfor AUTO/OFF/MANUAL switch status detection isEnabled. The M-2323B Adapter Panel AUTO/OFF/MANUAL switch status detection feature is availableto M-2001 series units that have Firmware Version

D-0067V07.08.15 or later installed. See Section2.0, Application, Disabling Auto/Off/Manual SwitchStatus Detection, for the steps necessary to disablethe AUTO/OFF/MANUAL switch detection functionfor M-2001 series units with an earlier firmwareversion.

Control SwitchesVOLTAGE SOURCE switch allows auto operationof the control or manual operation from the panel byusing the Raise/Lower toggle switch. TheAUTO/OFF/MANUAL switch status may be readby a M-2001 series control with firmware versionD-0067V07.08.15 or later installed.

▲ CAUTION: Do not reverse the ground and hotwires when connecting an external source. A 3 AGfuse (F2) is installed to protect the control fromdamage if these connections are accidentallyreversed.

With the VOLTAGE SOURCE switch in the EXTposition, the sensing and motor power circuits areconnected to the External Power binding post onthe front panel. The unit can be tested using anexternal 120 V RMS source of proper polarity appliedto these terminals. Testing can be accomplished byadjusting the amplitude of the external source.

The VOLTAGE SOURCE switch will disconnect allpower from the unit when selected to the EXTposition with no source connected to the frontpanel voltage inputs.

DRAG HANDS RESET pushbutton switch resetsthe tapchanger position indicator drag hands on theregulator or LTC transformer.

AUTO/OFF/MANUAL toggle switch allows manualoperation of the control. The AUTO/OFF/MANUALswitch status may be read by a M-2001 seriescontrol with firmware version D-0067V07.08.15 orlater installed.

When the M-2001C Input Selection 1 screen in theConfiguration menu is set to Toggle Switch StatusInput, the seal-in input will operate as a switchstatus input. All seal-in input functions will bedisabled. In this mode, the switch status on theadapter panel can be read to determine if it is inAuto or Manual. The status can be read through theseal-in/switch status data point in thecommunications protocols.

MOTOR POWER PUSH ON circuit breaker (10A)provides resettable overcurrent protection for theMotor Power Circuit.

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Binding PostsVOLTAGE IN binding posts on the front panel allowapplication of a 120 V rms nominal voltage to theunit for test procedures.

MOTOR PWR IN binding posts on the front panelallow application of a 120 or 240 V rms nominalvoltage to the unit for test procedures.

NOTE: If the Motor Power Input configuration hasa different return from the 120 V regulatedVoltage Input, then Jumper J12 on theprinted circuit board must be removed andTB1-16 should be used for the separatemotor power source and return connections(See Figure 4 or 5 for J12 location).

METER OUT binding posts on the front panel allowreading of the input voltage when used in conjunctionwith the BIAS TEST VOLTAGE screen of theM-2001 Tapchanger Control.

Status IndicatorsNEUTRAL LIGHT illuminates when the regulator isin the neutral tap position. Westinghouse Type URLControls do not include this feature.

The Adapter Panel includes three replaceable fuses:Test Terminal (3 A), Voltage Sense (1 A), andMotor Power (6 A).

Optional Control SwitchesVOLTAGE REDUCTION (VR1/OFF/VR2) switchallows local voltage reduction 1 or 2 to be initiated.

SCADA CUTOUT (LOCAL/REMOTE) switch allowsthe local blocking of SCADA commands. TheSCADA Cutout switch must be used with a M-2001Series Control with firmware versionD-0146V08.01.22 or later installed.

SCAMPTM (AUTO/MANUAL) pushbutton allows theAuto/Manual state on the adapter panel to bechanged by a SCADA command. The SCAMPpushbutton switch must be used with a M-2001Series Control with firmware versionD-0146V08.05.XX or later installed.

2.0 Application

Lightning ProtectionIt has been determined that transient voltages inexcess of 1500 V ac rms can exist on the “ground”lead normally tied to TB1-8 on the printed circuitboard. In the Tapchanger Controls, these voltagesare suppressed by varistors which still permit theunit to pass a 1500 V ac Hi Pot test for one minutewith a leakage current of approximately 15 mA, allterminals to ground.

▲ CAUTION: For proper protection againstsystem surges, chassis ground must beconnected to earth ground.

Multiple VT grounds far apart must be avoidedsince a varying difference in ground voltage couldadd or subtract from the effective voltage and causevariation in the Tapchanger Control’s bandcentervoltage setpoint.

External ConnectionsPower and voltage sensing are obtained either froma common source or from independent sourceshaving a nominal 120 V ac output. Normally, this isline-to-neutral voltage, although line-to-line voltagecan also be used if recognition is made of anyphase shift between the voltage and current signalswhen using line drop compensation.

Load current must be reduced by an appropriateauxiliary current transformer to 0.2 A “full scale”before connecting to the M-2323B current inputs.The Beckwith Electric M-0121 (5.0 A to 0.2 A) orM-0169A (5.0 A or 8.66 A to 0.2 A) Auxiliary CurrentTransformer can be used for this purpose.

The M-0121 can be used with Beckwith ElectricTapchanger Controls when the only burden presentis the Line Drop Compensator circuit of the voltageregulating relay.

The M-0169A is used in higher burden circuits,such as are found in paralleling schemes. Outputsof the auxiliary CTs are protected againstovervoltage.

For further information, obtain Beckwith ElectricApplication Note #17, “Basic Considerations for theApplication of LTC Transformers and AssociatedControls.”

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The external connections for the M-2323B are madeto terminal blocks TB1 and TB2. Auxiliary externalconnections, if needed, are made to terminal blocksTB1 and TB2 on the printed circuit board at thebase of the adapter panel. The wiring harness andexternal connections for the M-2323B are shown inFigures 3, 4 and 5.

Neutral Light CircuitThe M-2323B is prepared for use with regulatorswhich use a neutral light. However, WestinghouseType URL controls are not equipped for this feature.Beckwith Electric products typically require that theNeutral Light terminal TB1-11, be grounded insidethe regulator when the light is to be illuminated. Aswitch on the printed circuit board is used to selectthe desired configuration (Up - Neutral, Down - Hot).

To configure the Neutral Light to be illuminatedwhen TB1-11 is grounded inside the regulator, placethe S1 toggle switch (located on the upper righthand corner of the adapter panel printed circuitboard) in the "Up" (Neutral) position.

Non-Sequential Operation (N/A for BASE-R orBASE-RS)The operation of the M-2323B can be interruptedduring tapchanger operation by momentarily applyingthe “wetting” voltage of terminal TB2-28 to TB1-1(timer reset for non-sequential operation input)through an external contact. This causes the outputto de-energize and reinitialize the time delay circuitwhen the reset signal is removed. This function canbe used to cause the LTC transformer, if soequipped, to wait for the unit to time out betweentapchanges. Westinghouse Type URL Controls arenot equipped for non-sequential operation.

▲ CAUTION: Voltage applied through dry contactsto actuate non-sequential input must be nominal+12 V dc obtained from pin TB2-28 of the M-2323Badapter panel.

Automatic Disable InputTo disable automatic operation of the M-2323B,remove Jumper #15 (See Figures 4 and 5, forlocation) on the printed circuit board.

If SCADA is used to enable and disable this function,a contact rated at 6 A minimum can be connectedbetween the terminals.

Auto disable may also be accomplished by closinga contact between TB1-1 and TB2-28.

Operations Counter Input▲ CAUTION: Do not apply any voltage to thisterminal.

An operations count is registered by momentarilygrounding TB1-13 through an external dry contactfrom the load tapchanger. The input is level-sensitive.Make sure that any “wetting” voltages are removedfrom the counter contacts before installing theM-2323B Adapter Panel/M-2001 Tapchanger Control.

Local/Remote InputRemoving Jumper #14 (See Figures 4 and 5, forlocation) prohibits M-2001 operation by disablingthe automatic raise and lower outputs and also bydisabling the M-2323B Adapter Panel’s manualRAISE/OFF/LOWER toggle switch. Removing thisjumper does not disable the motor voltage input intoterminals TB2-20 and TB2-21.

Multi-Step Voltage Reduction▲ CAUTION: Voltage applied through dry contactsto actuate Voltage Reduction Steps 1, 2, and 3must be nominal +12 V dc obtained from pin TB2-28of the M-2323B adapter panel.

On the M-2323B, TB1-2 and TB1-7 on the printedcircuit board are used together to provide up tothree levels of voltage reduction. The externalconnections to achieve these steps are shown inTable 1 and Figure 3. Voltage reduction amountsare set within the M-2001 Tapchanger Controlsoftware.

Paralleling (N/A for BASE-R and BASE-RSControls)See M-2001C Instruction Book, Section 4.9, ParallelOperation.

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Voltage Reduction Setpoint: Multiplier Range Apply "Wetting Voltage" from TB 2-28 to Terminal #Voltage Reduction Setpoint #1: 0 to 10% TB1-7Voltage Reduction Setpoint #2: 0 to 10% TB1-2Voltage Reduction Setpoint #3: 0 to 10% TB1-7 and TB1-2

Table 1 Multi-Step Voltage Reduction External Connections

Disabling Auto/Off/Manual Toggle SwitchStatus DetectionThe Auto/Off/Manual Toggle Switch status detectionfeature is available on M-2001 Series DigitalTapchanger Controls that have Firmware VersionD-0067V07.08.15 or later installed. To disable theAuto/Off/Manual Toggle Switch status detectionfeature for earlier firmware versions, perform thefollowing:

1. Ensure that all power is removed fromthe M-2323B Adapter Panel and M-2001control.

2. From the rear of the M-2323B AdapterPanel locate (Figure 4) and remove thewire connected to Terminal S3-4 on therear of the AUTO/OFF/MANUAL Toggleswitch.

3. Connect the wire removed in Step 2 toTerminal S2-4 on the rear of theRAISE/OFF/LOWER Toggle switch.

4. See M-2001 Instruction Book Section 6.1,External Connections, for informationregarding M-2001 settings to disable thisfunction.

Operations Counter Input▲ CAUTION: Do not apply either +12 V dc or 120 Vac to this terminal.

An operations count is registered by momentarilygrounding TB1-13 through an external dry contactfrom the load tapchanger. The input is level-sensitive.Make sure that any “wetting” voltages are removedfrom the counter contacts before installing theM-2323B Adapter Panel/M-2001 Tapchanger Control.

Connections for LTC Transformers andRegulatorsIn general, the tapchanger motor must be operatedfrom a different transformer than the VT used tomeasure regulated voltage. If this is not done,hunting at the upper band edge may result.

When the motor starts, and before it sealed in, themotor current can decrease the voltage within thenband and reset the control. Some motor seal-inschemes are fast enough to prevent this situation,but others may not.

Pulsed output can be utilized to correct this problem.(See M-2001 Instruction Book Section 3.5, PulsedOutput).

A typical connection for an M-2323B is shown inFigure 3. Connections are simplified and may notshow all functions required in a typical loadtapchanging transformer control scheme; forexample, seal-in contacts, limit switches, etc.

Use of the M-0329 LTC Backup Control with theTapchanger ControlThe M-0329 is a single-phase, solid-state backupcontrol that prevents a defective tapchanger controlfrom running the voltage outside the upper andlower voltage limits. The Block Raise and BlockLower voltage levels are set by accurately calibrateddials.

The M-0329 LTC Backup Control is connected as atwo terminal device to the voltage transformer.Figure 4 shows the typical interconnection of thetwo devices with motor auxiliary relays.

The M-0329 Instruction Book is available on requestand gives added details. Please refer to the M-0329Instruction Book for complete ordering information.

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8 WARNING: In no case should the line current circuit be interrupted with the regulator or transformerenergized. Do not remove auxiliary current transformers without shorting the current inputs. Death orsevere electrical shock can occur.

Figure 1 M-2001C and M-2323B Adapter Panel with Standard Auto/Off/Manual Toggle Switchand Optional Voltage Reduction and SCADA Cutout Switches

Manual Lower

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

17

18

19

20

21

22

23

24

25

26

27

28

TB1

TB2

Manual Raise

Motor Seal-In Input

Self-Test Alarm(Return)

Self-Test Alarm(Polarity)

User-ProgrammableAlarm (Return)

+12 V dc Wetting Supply

User-ProgrammableAlarm (Polarity)

Auto Disable

Local/Remote

M-20011

2

3

4

5

6

7

8

9

10

11

12

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14

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24

Voltage Input(Polarity)

Load Current(Return)

Neutral

Load Current(Polarity)

Circulating Current(Polarity)

Circulating Current(Return)

Tapchanger RaiseOutput

Motor Power Input

Voltage ReductionStep #2 Input

Contact "Wetting"Supply +12 V dc

Operation CounterInput #1


Motor Seal-InDetector Input

Neutral PositionDetector #1


Tapchanger LowerOutputNon-SequentialOperation/Auto T.C.Inhibit InputVoltage ReductionStep #1 Input

Motor Seal-InDisconnect Output

User-ProgrammableAlarm

Self-Test Alarm


Non-InterruptablePower Supply Input

Self-Test Alarm

INT

OFF

EXT

INT

OFF

EXT

MeterOut

ExternalPower

(Front Panel Inputs) TestTerminalFuse 3 A

Drag HandsReset

NeutralLight

Voltage InFuse (1 A)

Motor PowerFuse (6 A)

ManualRaise

ManualLower

OFF(Momentary) Manual

AutoOFF

AutoOFF

ManualR5

1 K Ohm

16

Local

Remote

SCADACutout

J12

J4

J5

VR1

VR2

VoltageReductionOFF

Optional

Optional

J14

J15

RT1(.150 A)

Motor PowerReturn




Tapchanger LowerOutput

Non-Sequential / AutoTapchange Inhibit Input



Neutral

Motor Power 120/240 V ac Supply

Regulated Voltage(120 V ac)

Neutral Light

Drag Hands Reset

OperationsCounter Input

Line Current(Polarity)

Line Current(Return)

Up(Netrual)

Down(Hot)

S1

See Figure 3for additionalpanel mountedequipment.

S4

INT

OFF

EXT

MotorPwr In

A

B

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88888 WARNING: In no case should the line current circuit be interrupted with the regulator ortransformer energized. Do not remove auxiliary current transformers without shorting thecurrent inputs. Death or severe electrical shock can occur.

Figure 2 M-2001C and M-2323B Adapter Panel with Optional SCAMPTM Auto/Manual,SCADA Cutout and Voltage Reduction Switches

Manual Lower

1

2

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4

5

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8

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13

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28

TB1

TB2

Manual Raise

Motor Seal-In Input


+12 V dcWetting Supply


Auto Disable

Local/Remote

M-20011

2

3

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5

6

7

8

9

10

11

12

13

14

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24

Voltage Input(Polarity)

Load Current(Return)

Neutral

Load Current(Polarity)




Motor Power Input


Contact "Wetting"Supply +12 V dc



Motor Seal-InDetector Input



Tapchanger LowerOutputNon-SequentialOperation/Auto T.C.Inhibit InputVoltage ReductionStep #1 Input

Motor Seal-InDisconnect Output


Self-Test Alarm


Non-InterruptablePower Supply Input

Self-Test Alarm

INT

OFF

EXT

INT

OFF

EXT

MeterOut

ExternalPower

(Front Panel Inputs) TestTerminalFuse 3 A

Drag HandsReset

NeutralLight

Voltage InFuse (1 A)

Motor PowerFuse (6 A)

ManualRaise

ManualLower

OFF(Momentary)

R51 K Ohm

16

Local

Remote

SCADACutout

J12

J4

J5

VR1

VR2

VoltageReductionOFF

Optional

Optional

J14

J15

RT1(.150 A)

Motor PowerReturn








Neutral



Neutral Light

Drag Hands Reset




Up(Netrual)

Down(Hot)

S1MotorPwr In

SCAMPAuto/Manual

Optional

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NOTES:

1. Components identified by an asterisk are mounted to the rear of the adapter panel.

2. If the Motor Power Input configuration has a different return from the 120 V regulated VoltageInput, then Jumper J12 on the printed circuit board must be removed and TB1-16 should be usedfor the separate motor power source and return connections (See Figure 4 or 5 for J12 location).

88888 WARNING: Open CT secondary will result in high voltage at CT terminals. Death, severe injury ordamage to equipment can occur. Do not operate with CT secondary open. Short circuit or applyburden at CT secondary during operation.

Figure 3 External Connections

Manual Lower

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

17

18

19

20

21

22

23

24

25

26

27

28

TB1

TB2

Manual Raise

Motor Seal-In Input

Self-Test Alarm(Return)

Self-Test Alarm(Polarity)


+12 V dc WettingSupply


Auto Disable

Local/Remote

16Motor PowerReturn








Neutral



Neutral Light

Drag Hands Reset




K1*

K2*

K1*

URL-16Terminal

Block

G

F

E

J

D

B

A

H

K

C

L

F1

F2

ShortingSwitch

(SX)

J

G

D

E

K1*

K3*

CB1*(10 A)

See Figures 1 and2 for Switch S4wiring details.

A

B

K3*

K2*

-8-


82 71

6543

82 71

6543

82 71

6543

K1K2K3

CB1

13

10

1

J8

J7

23

17TB2

1

1 2 43 65 8711 10 89 67 5 4

1

913 2

32 54 76 98

BE# 450-00230P-1970

REV.

J6

1516

24

P1 78

20

14 1213

2223 21

6 45

1011 9

1819 17

23 1

TB1 16

F3

1

F4

2

1

1

2

2

F2

S4

2

1

9

8

7

63

54

L

C

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SAFETY RELAYLDCLDC POLARITYPOWERSAFETY RELAYNEUTRALOPERATION COUNTERMOTOR COMMON120 CONTACTLOWERRAISE

J14 J15

J14 J15

S3 S2

4 43

5 25

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6

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4

5

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S1

J12

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R BP3 B

R

R BP2 B

B

Figure 4 M-2323B Wiring Harness with Standard Auto/Off/Manual Toggle Switch,Optional Voltage Reduction and SCADA Cutout Switches

-9-


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Figure 5 M-2323B Wiring Harness with Optional SCAMPTM Auto/Manual Pushbutton Switch,Voltage Reduction and SCADA Cutout Switches

-10-


84R - Raise Motor Auxiliary Relay84L - Lower Motor Auxiliary Relay

*

*TB1-11

L

Lower

RRaise

Common

TB1-12

TB1-6

TB1-10

TB1-7

TB1-9

MOTORSUPPLY

Tapchanger Control M-0329 LTC Backup Control

LOWER

BLKRAISE

BLKLOWER

84L84R

120 V acPower

3

2

4

14

15Alarm

Limit switcher, auxiliary contacts asrequired in motor control circuits.

1

Voltage

* ■ NOTE: If first customer protection is not required, delete these connections.

Figure 6 Tapchanger Control and LTC Backup Control Interconnections

-11-


3.0 Installation

Removal of the Westinghouse Control1. Open the cabinet door of the Westinghouse

URL Type control.

2. Loosen the thumbscrew located on thetop of the control panel, then tilt the controlpanel outward to gain access to the controlwiring.

3. While supporting the control panel in thetilted out position, remove all connectionsfrom the Westinghouse control to thecabinet terminal blocks.

4. When all control wiring has beendisconnected, then lift the and removethe control from the cabinet. Installationof the M-2001 Tapchanger Control

Installing the M-2323B/M-20011. Mount the M-2001 to the M-2323B Adapter

panel (Figure 9) by using the hardwareprovided in the cloth bag. Use the lockwashers supplied between the screws andthe top of the front panel.

NOTE: The blue connector is keyed by a “V”notch in the middle to prevent incorrectmating (Figure 7). Check location of thekey before plugging connector into theM-2001.

Figure 7 M-2001 Harness Connector

2. Plug the blue connector of the M-2323Bharness into the bottom of the M-2001.

If desired, bench testing may be performed asdescribed in Section 5.0, Bench Testing.

��

Figure 8 M-2001 V-Notch Orientation

3. Insert the M-2323B panel onto theenclosure hinge pins.

4. Connect the M-2323B wiring harness tothe cabinet terminal blocks as indicatedon Figure 3.

5. Secure the M-2323B control panel thumbscrew latch.

6. Set the toggle switch to the Manualposition.

7. Set up the desired configuration andsettings on the M-2001. See M-2001CInstruction Book Chapter 4, Configuration.

8. Verify manual operation of the unit.

9. Set the toggle switch to the Auto positionand verify automatic operation.

-12-


MOTORPOWER

PUSH ON

TAPCHANGER CONTROLM-2323B

DRAG HANDS

NEUTRAL

RESET

LIGHT

METER OUT

MOTOR PWR IN

VOLTAGE INEXT

OFF

INT

VOLTAGESOURCE

MANUALLOWER

OFF

RAISE AUTO

OFF

MOTOR POWER 6 AMP

VOLTAGE 1 AMP

TEST TERMINAL 3 AMP

EB WCK TI HLE CT IREC

OC NI. .C

M ead ni S.U A.

13.0[33.0]

19.08[48.5]

3.0[7.65]

0.82[2.1]

Inches[Centimeters]

Figure 9 Outline Dimensions

-13-


4.0 M-2001 Tapchanger ControlSoftware Settings

Adjust the BANDCENTER setting to the nominalvoltage desired. Adjust the BANDWIDTH settingto the desired voltage band, centered on theBandcenter setpoint, that the voltage must exceedbefore timer and subsequent tapchanger operationoccurs. Adjust the TIME DELAY setpoint to asufficient amount to eliminate excessive tapchangeroperations. The LINE DROP COMPENSATORshould be set for the line impedance from thetransformer to the load center. For furtherinformation, obtain Beckwith Electric ApplicationNote #17, “Basic Considerations for the Applicationof LTC Transformers and Associated Controls.”

4.1 M-0329 LTC Backup ControlSettings

The BANDCENTER and BANDWIDTH dials onthe M-0329 LTC Backup Control should be set sothat the Block Lower limit is a small amount(approximately 2 V) below the lower band limit ofthe Tapchanger Control, and the Block Raise limitis a similar amount above the upper limit if linedrop compensation is not used.

If line drop compensation is used, the M-0329Block Raise limit should be set at the maximumvoltage desired at the transformer secondary underfull load.

The M-0329 LTC Backup Control also includes adeadband or runback function that regulates themaximum voltage from the transformer. This“Lower” function operates slightly above the BlockRaise limit and is connected to force the tapchangerto lower the voltage if the upper limit is exceeded.

-14-


5.0 Bench Test (M-2001Connected to M-2323B)

The Bench Test is a standard Beckwith Electrictest procedure. It is intended to verify properoperation of the electronic circuits of the M-2001Ccontrol and adapter panel. This procedure does notinclude the circuitry associated with the attachedharness.

■ NOTE: This test assumes that the M-2001Tapchanger Control is connected to theM-2323B Adapter Panel.

Test Equipment• 0–200 mA current supply with phase angle

settings of 0° to +90°

• 90–145 V ac voltage source at 60 Hz

• High impedance true RMS voltmeter withaccuracy on ac of at least ±0.2% ofreading

• Accurate Stop watch

Setup1. Make the electrical connections as shown

in Figure 10.

■ NOTE: Refer to the M-2001C Instruction BookAppendix, Figures A-1 through A-13 forthe locations of screens within thesoftware.

■ NOTE: There is a one second delay betweenthe out-of-band condition and panel LEDindication.

2. Enter initial M-2001 settings:

Initial SettingsBandcenterBandwidthLDC ResistanceLDC ReactanceParallelingBlock RaiseBlock LowerDeadbandTimer

Circulating Current Method

120.0 V2.0 V0.0 V0.0 V

5.0 Seconds

135.0 V105.0 V2.0 V

Table 2 Initial Settings

Procedure▲ CAUTION: Do not reverse the ground and hotwires when connecting an external source.

1. Apply 120.0 V ac from power source.

2. The display of the M-2001 willautomatically advance to the LocalVoltage screen.

3. Increase voltage to 121.2. The LOWERLED should illuminate.

4. Decrease voltage to 118.8. The RAISELED should illuminate.

5. Set input voltage to 120.0 V ac. Wait forRAISE and LOWER LEDs to extinguish.

6. Increase voltage to 122.0 V ac, then starttiming when voltage passes 121.0 V.

7. Stop timing when the lamp connected tothe LOWER output illuminates (should beapproximately 5 seconds).

Resistance▲ CAUTION: The current input to the M-2001C israted at 0.2 A continuous, 0.4 A for two hours, and4.0 A for 1 second.

1. Apply 100.0 mA in-phase current toTB1-14 (load current-polarity) andTB1-15 (load current-return) of the adapterpanel. (Set S1 to LDC and S2 to IIIIIR.)

2. Set LDC Resistance to 24.0 V. The RAISELED should illuminate.

3. Increase input voltage to 132.0 V ac.The RAISE and LOWER LEDs shouldbe extinguished.

4. Set LDC Resistance to –24.0 V. TheLOWER LED should illuminate.

5. Decrease input voltage to 108.0 V ac.Both RAISE and LOWER LEDs shouldextinguish.

6. Set LDC Resistance to 0.0 V.

-15-


Figure 10 M-2323B Test Procedure External Connection

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-16-


Reactance▲ CAUTION: The current input to the M-2001C israted at 0.2 A continuous, 0.4 A for two hours, and4.0 A for 1 second.

1. Apply 100.0 mA 90° leading current toTB1-14 (load current-polarity) andTB1-15 (load current-return) of the adapterpanel.

2. Set S1 to LDC and S2 to IIIIIL.

3. Set LDC Reactance to 24.0 V. The LOWERLED should illuminate.

4. Decrease input voltage to 108.0 V ac.The RAISE and LOWER LEDs should beextinguished.

5. Set LDC Reactance to –24.0 V. The RAISELED should illuminate.

6. Increase input voltage to 132.0 V ac.Both RAISE and LOWER LEDs shouldbe extinguished.

7. Set LDC Reactance to 0.0 V.

Voltage Source Switch1. Set AUTO/OFF/MANUAL switch to OFF.

2. Set VOLTAGE SOURCE switch to EXT.

3. Verify that there is no manual Raise orLower output.

4. Attach a voltmeter to Meter Out terminals.

5. Verify that no voltage is present.

6. Apply 120 V ac to both the Voltage Inand Motor Pwr In binding posts(Black-Neutral, Red-Hot).

7. Set the AUTO/OFF/MANUAL switch toAUTO.

8. Verify normal raise and lower operation.

9. Return the VOLTAGE SOURCE switchto INT.

Drag Hands Reset1. Verify that the DRAG HAND RESET switch

works by connecting a lamp or ac relayfrom TB1-12 (drag hands reset) to TB1-8(neutral) of the adapter panel. When theswitch is pressed, the connected indicatorshould function.

Counter/Neutral Light/Tap Position1. Set the M-2001 Tapchanger Control to

display the Operations Count screen.

2. Verify the counter operation by connectinga switch between TB1-13 (operationscounter input) and TB1-8 (neutral) of theadapter panel.

3. Lower the input voltage until the RAISELED lights. Allow the delay timer to timeout and then activate the switch betweenTB1-13 (operations counter input) andTB1-8 (neutral).

4. The tap position should change.

5. Jumper TB1-11 (neutral light) to TB1-8(neutral).

6. Set the neutral light switch S1, locatedon the adapter panel printed-circuit boardFigures 4 and 5, to the toggle down position(Hot).

7. The neutral light on the adapter panelshould light and the tap position shouldreturn to “0 Neutral.”

8. Remove the jumper.

Block Raise/Block Lower/Dead Band1. Set Block Raise to 126.0 V.

2. Set Block Lower to 114.0 V.

3. Set the M-2001 Tapchanger Control todisplay the Bias Voltage screen.

4. Press Enter.

5. Increase voltage to 126.5 V. BR shouldbe displayed on the screen.

6. Increase voltage to 128.5 V. BRextinguishes and FL is displayed on thescreen.

7. Decrease voltage to 113.5 V. BL isdisplayed on the screen.

—Bench Test Complete—

-17-


5.1 Checkout Procedure

This test procedure is intended to verify properoperation of the electronic circuits of the M-2001Ccontrol and adapter panel. This procedure does notinclude the circuitry associated with the attachedharness.

NOTE: All M-2001 Series units are fully calibratedat the factory. There is no need torecalibrate the units before initialinstallation.

Pre-Test Conditions1. Place the AUTO/OFF/MANUAL switch in

the OFF position.

2. Verify that the MOTOR POWER andVOLTAGE fuses are correctly sized andhave not blown.

Power1. Remove any external connections between

TB1-9 (Motor Power) and TB1-10(Regulated Voltage), which are locatedon the adapter panel printed circuit board.

2. Remove any voltage applied to TB1-9externally.

3. Apply a nominal 120 V ac test voltagesource between TB1-10 (hot) and TB1-8(neutral).

4. Using a voltmeter, verify that the voltageapplied to TB1-10 is nominal 120.0 V acwith respect to TB1-8.

8 WARNING: Do not connect any voltage sourceat the METER OUT test terminal. Applying avoltage source may energize the regulator ortransformer to a high voltage through the voltagetransformer. Death or electrical shock can occur.

▲ CAUTION: Do not reverse the ground and hotwires when connecting an external source.

5. Apply motor power to TB1-9 (hot) andTB1-8 (neutral).

6. Place the AUTO/OFF/MANUAL switch inthe MANUAL position.

7. Using the RAISE/OFF/LOWER switch,verify that the motor runs in the properdirection when the switch is placed inthe RAISE and LOWER positions.

8. Set the AUTO/OFF/MANUAL switch tothe AUTO position.

9. Refer to M-2001C Instruction BookChapter 3, Setting the Control for setupand test procedures for the M-2001.

Load Current CT

8 WARNING: In no case should the load currentcircuit be interrupted with the regulator ortransformer energized.

8 WARNING: Do not remove auxiliary currenttransformers without shorting the current inputs.Death or severe electrical shock can occur.

1. Short the line drop compensator circuitby placing a shorting device of adequatecapacity, across the LDC-CT secondary(See Figure 11).

2. Short the circulating current parallelinginput for the load current check by placinga shorting device of adequate capacityacross TB1-3 and TB1-4.

3. Connect an ammeter (set to the 200 mArange) between the polarity input andTB1-14.

4. Open the load current shorting device.

5. With a known load on the transformer orregulator, measure the current in the loadcurrent circuit.

6. Verify that the current measured in Step5 is correct for 0.2 A full load.

LDC1. Replace the shorting device across the

load current input and remove the ammeter.

2. Reconnect polarity to the unit, then removeboth shorting devices. The LINE DROPCOMPENSATOR will be activated.

Verify correct CT polarity by incorporatingsufficient +R compensation. The regulatorshould time out and run to raise the outputvoltage.

‑18‑

M‑2323B Application Guide

3

4

14

15

Figure 11 Setup for Current Checkout Procedure

Legal Information

PatentThe units described in this manual are covered byU.S. Patents, with other patents pending.

Buyer shall hold harmless and indemnify the Seller,its directors, officers, agents, and employees fromany and all costs and expense, damage or loss,resulting from any alleged infringementof UnitedStates Letters Patent or rights accruing thereform ortrademarks, whether federal, state, or common law,arising from the Seller’s compliance with Buyer’sdesigns, specifications, or instructions.

WarrantySeller hereby warrants that the goods which are thesubject matter of this contract will be manufacturedin a good workmanlike manner and all materialsused herein will be new and reasonably suitable forthe equipment. Seller warrants that if, during aperiod of five years from date of shipment of theequipment, the equipment rendered shall be foundby the Buyer to be faulty or shall fail to peform inaccordance with Seller’s specifications of theproduct, Seller shall at his expense correct thesame, provided, however, that Buyers shall ship theequipment prepaid to Seller’s facility. The Seller’sresponsibility hereunder shall be limited to replace-ment value of the equipment furnished under thiscontract.

Seller makes no warranties expressed or impliedother than those set out above. Seller specificallyexcludes the implied warranties of merchantibilityand fitness for a particular purpose. There are nowarranties which extend beyond the descriptioncontained herein. In no event shall Seller be liable forconsequential, exemplary, or punitive damages ofwhatever nature.

Any equipment returned for repair must be sentwith transportation charges prepaid. The equipmentmust remain the property of the Buyer. The afore-mentioned warranties are void if the value of theunit is invoiced to the Seller at the time of return.

IndemnificationThe Seller shall not be liable for any propertydamages whatsoever or for any loss or damagearising out of, connected with, or resulting fromthis contract, or from the performance or breachthereof, or from all services covered by or furnishedunder this contract.

In no event shall the Seller be liable for special,incidental, exemplary, or consequential damages,including but not limited to, loss of profits orrevenue, loss of use of the equipment or anyassociated equipment, cost of capital, cost ofpurchased power, cost of substitute equipment,facilities or services, downtime costs, or claims ordamages of customers or employees of the Buyerfor such damages, regardless of whether said claimor damages is based on contract, warranty, tortincluding negligence, or otherwise.

Under no circumstances shall the Seller be liablefor any personal injury whatsoever.

It is agreed that when the equipment furnishedhereunder are to be used or performed in connec-tion with any nuclear installation, facility, oractivity, Seller shall have no liability for anynuclear damage, personal injury, property damage,or nuclear contamination to any property located ator near the site of the nuclear facility. Buyer agreesto indemnify and hold harmless the Seller againstany and all liability associated therewith whatso-ever whether based on contract, tort, or otherwise.Nuclear installation or facility means any nuclearreactor and includes the site on which any of theforegoing is located, all operations conducted onsuch site, and all premises used for such opera-tions.

Notice:Any illustrations and descriptions by BeckwithElectric Co., Inc. are for the sole purpose ofidentification.

The drawings and/or specifications enclosed hereinare the proprietary property of Beckwith ElectricCo., Inc., and are issued in strict confidence;therefore, shall not be used as a basis of reproduc-tion of the apparatus described therein withoutwritten permission of Beckwith Electric Co., Inc.

No illustration or description contained hereinshall be construed as an express warranty ofaffirmation, promise, description, or sample, andany and all such express warranties are specificallyexcluded nor shall such illustration or descriptionimply a warranty that the product is merchantableor fit for a particular purpose. There shall be nowarranties which extend beyond those contained inthe Beckwith Electric Co., Inc. terms of sale.

All rights reserved by Beckwith Electric Co., Inc. No reproduction may be made without prior written approvalof the Company.

This Page Left Intentionally Blank

BECKWITH ELECTRIC CO., INC.6190 - 118th Avenue North • Largo, Florida 33773-3724 U.S.A.

PHONE (727) 544-2326 • FAX (727) [email protected]

www.beckwithelectric.comISO 9001:2008

© Beckwith Electric Co.Printed in USA

800-2323B-AG-02MC4 09/14

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