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M-5072 Retrofit Kit For

M-4272 Digital Motor Bus

Transfer System

SYNCRHONIZIN

Adapts M-4272 Digital Motor Bus Transfer System as areplacement for existing analog motor bus transfer equipment

Provides direct mechanical and electrical replacement ofexisting analog transfer logic controller M-0272/M-0236B

Connects easily to the M-4272's terminals without any wiringchange

The physical change is simple and cost effective

Enhances the security, reliability and performance of yourfacility with additional features in the digital motor bustransfer equipment

Optional M-3919 Graphic Display Unit (GDU) and Touch ScreenHuman Machine Interface (HMI) for communicating with one ortwo M-4272 units

Industry Leader Since 1969

Made in the USA

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Comparison of Digital M-4272 and Analog M-0272 & M-0236B

M-4272 M-0272 & M-0236B

18 Inputs

- 6 Inputs (52a, 52b and 52sp) for two

breaker positions

- 12 User programmable Inputs

8 Inputs

- 2 Inputs (52a) for two breaker positions

- 1 Input for protective relay initiate

- 1 Input for remote manual initiate

- 1 Input for external lockout

- 1 Input for auto transfer enable

- 1 Input for external reset

- 1 Input for auto trip enable

2 Current Inputs None

Power Supply Options:

- 24/48 V dc

- 120/240 V acor 125/250V dc

125 V dc Power Supply

M-3872 ISScom Communications Software:

- Entering / Modifying Settings

- Metering of all measured inputs,

measured and calculated quantities

- Mimic Single Line Diagram

- Sequence of Event logs

- Transfer Event Log

- Phasor Diagram

- Synchroscope

- Oscillograph recording

None

ISSlogicfor programming additional non-standard applications and conditions if needed.

Fixed standard transfer logic.

18 Output Contacts

- 4 contacts (2 trip and 2 close) for Main

and Startup sources

- 1 contact for power supply (P/S)

- 1 contact for self-test

- 1 contact for lockout/blocking

- 11 User programmable output contacts

7 Output Contacts

- 4 contacts (2 trip and 2 close) for Main

and Startup sources

- 1 contact for power supply (P/S)

- 1 contact for lockout/blocking

- 1 contact for load shed

9 Voltage Inputs can be connected:

1-Phase Line to Ground

OR

1-Phase, Phase to Phase for Main, Bus

and New Source Voltages


OR

3-Phase Open Delta for Main, Bus and

New Source Voltages

3 Voltage Inputs can be connected:


OR

1-Phase, Phase to Phase for Main, Bus

and New Source Voltages

None

ISSplotOscillography Analysis software to

playback captured waveforms

None

Cost Effective Higher cost, and may be difficult to maintain

future production due to some components being

discontinued and unavailable.

Figure 1 (2 of 2) M-4272 Feature Comparison to M-0272/M-0236B

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The following is a list of the additional features that have been incorporated in the digital equipment that canenhance the security and performance of your facility:

Bi-Directional Operation: The legacy equipment does not support automatic transfer from thestandby source to the main source. The M-4272 supports automatic transfer in either direction byproviding independent bus under voltage elements and transfer initiation inputs for each direction.

Hot parallel Transfer: The legacy equipment does not support Hot Parallel Transfer. For routine

transfers, the breakers must be operated manually. The safety of this method depends on the plantoperator verifying the voltages are satisfactory prior to paralleling the sources. In addition, thistransfer method is very slow which results in the sources being paralleled for long periods of timeand provides no breaker failure protection. The M-4272 provides programmable, fully supervisedclosed transitions in either direction. This provides additional safety by ensuring the sources arecompatible prior to paralleling, minimizing the time that the two sources are paralleled, andproviding breaker failure protection for the entire operation.

Self Diagnostics: The legacy equipment provides limited self diagnostics. Like our relay products,the M-4272 incorporates extensive self diagnostics that will automatically remove the equipmentfrom service and notify operators in the event of input power failure or internal equipment fault.

Programmable Logic

Digital Oscillography

Transfer Event Log

Sequence of Events Logs

Breaker performance monitoring

Programmable load shedding

Extensive metering and status

Communications capability

M-5072 Retrofit Kit Features

The M-4272 Digital Motor Bus Transfer System and a M-5072 retrofit kit provide the direct replacement of theM-0272/M-0236B Analog Transfer Logic Controller. The physical change is very simple and cost effective.

The M-5072 retrofit kit consists of a bracket and wiring harness (Figure 2) that replicates the existing M-0272

terminal block locations. The M-5072 terminal blocks are located in the same positions (Figure 3) as theM-0272 and it is attached to the M-4272. The wire harness connects the appropriate terminals between theM-4272 and the M-0272. This will allow a very simple replacement of the existing M-0272 equipment.

Since the existing analog M-0272/M-0236B takes 7u height while the M-4272 takes only 4u height. One rackmount black blank panel with 1u height and one rack mount black blank panel with 2u height are provided tofill up the empty spaces after the replacement. Refer to Figure 4, M-0272 versus M-4272 front panel layoutdrawing for details.

An Optional M-3919 Graphic Display Unit (GDU) and Touch Screen Human Machine Interface (HMI) forcommunicating with one or two M-4272 units.

M-4272/M-5072 Installation

The existing M-0272 wiring would be labeled and then disconnected. The M-0272 equipment would bedisconnected and removed. The M-0236B would also be disconnected and removed. Then the M-4272 withthe supplied bracket/harness already mounted would be installed in the same location as the M-0272. Thelabeled wires would be reconnected to the new bracket. Refer to Figure 3, M-5072 Terminal Blockassignments and Figure 5, M-4272 Versus M-0272 External Connections for details. All wiring connectionsshould be connected directly to M-4272s terminals.

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Figure2M-5072RetrofitKitBracketandWiring

Harness

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Figure3M

-5072TerminalBlockArrangem

ents

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M-0272A& M-0236B

7,13,&25

23

9

22

16

17

SHIELD OF CABLE

M-0272

TRANSFER LOGIC CONTROLLER

3

J1

10

8

PLUG INCONNECTOR

4

11

21

14

1

J+10

AUTO TRIP ENABLE

EXTERNAL LOCKOUT

(SHORT TO ENABLE)

MAIN BREAKER STATUS

(CLOSED WHEN POWER OK)

FOR RESIDUAL VOLTAGE TRANSFER)LOAD TRIP (CLOSES TO TRIP LOADS

MAIN VT

START UP VT

BUS VT

LOCKOUT STATUS CONTACT (CLOSED WHENM-0236B MOD259 VOLTAGE STATUS NOT OKOR WITH ANY LOCKOUT CONDITION)

POWER STATUS CONTACT

26

27

28

N

H

H

H

24

25

N

N

21

22

23

18

19

20

16

17

13

1415

11

12

CLOSESTARTUP

M-0275

-VDC P

+VDC

EXTERNAL RESET

DIODE

M

NO

- K

L

PROTECTIVE RELAY INITIATE

AUTO TRANSFER ENABLE

ANALOG GND (0V)

MANUAL INITIATE

START UP BREAKER STATUS8

9

5

7

6

2

4

3

1

TRIP MAIN

TRIP

STARTUP

M-0275

M-0275

CLOSE MAINM-0275

DIODE

DIODE

- H

I

-

+

E

G

F

DIODEB

+ D

C

+

-

A

INTERCONNECTION CABLE

21

TRANSFER STATUSMANUAL

REMOTE

COMMON

24

25

22

23

PREVIOUS RESIDUAL VOLTAGE

PREVIOUS IN-PHASE

CLOSE STARTUP INDICATION

CLOSE MAIN INDICATION

TRIP MAIN INDICATION

TRIP STARTUPI NDICATION

BUS VOLTAGE STATUS

RESIDUAL VOLTAGE TRANSFER

PHASEA NGLE STATUS

TRANSFER STATUS 16

TRANSFER STATUS

TRANSFER STATUS

LOCAL

20

19

17

18

PREVIOUS FAST 15

14

11

12

13

DISABLE INPUT

8

10

9

6

7

3

4

5

2

1

GND

23

25

24

2

22

21

18

19

20

15

17

16

13

14

10

12

11

9

8

5

7

6

4

3

1

27

28

26

F

E

C

D

B

A

G

H

N

H

H

N

H

N

+

-

GND

TB1 TB2

TB3

TB1

TB2

Figure 5 M-0272/M-0236B External Connections

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Figure 6 M-4272 External Connections For The Existing M-0272 Wiring

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Physical

M-5072

Size: 8.37" high x 17.25" wide x 3.89" deep ( 21.26 x 43.82 x 9.88 )

Approximate Weight: 3 lbs (1.4 kg)

Approximate Shipping Weight: 5 lbs (2.3 kg)

M-5072 with M-4272

Size: 8.37" high x 19" wide x 12.86" deep ( 21.26 x 48.26 x 32.66 )

Approximate Weight: 23 lbs (10.5 kg)

Approximate Shipping Weight: 35 lbs (15.9 kg)

Warranty

The M-5072 is covered by a five-year warranty from date of shipment. The M-3919 is covered by a two-yearwarranty from date of shipment.

Specification subject to change without notice.

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M-3919 Graphic Display Unit/Touch Screen Human Machine Interface

Provides a MIMIC Single-Line Diagram of the Motor Bus Transfer System in Two-breaker or Three-breaker Bus Transfer Configuration

65K-Color TFT LCD Display

12.1 Inch Touch Screen Human Machine Interface (HMI)

Includes a separate power supply, nominal 120 V ac (50/60 Hz) or 125 V dc (250 V dc optional) Remote Target Reset Capability

Remote Manual Transfer Capabilty

Figure 7 Graphic Display Unit/Touch Screen Human Machine Interface

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Features

The M-3919 includes the following features and functions:

Display & Touch Screen

Liquid Crystal Display (LCD)

12.1" TFT LCD 65K color

Size 9.75" x 7.25" [248 mm x 184 mm], 12.1" diagonal

Brightness 400 cd/m2

Contrast 500:1

Resolution 800 x 600 pixels

Backlight CCFL with up to 50,000 hour life span

Touch Screen type 4-wire Analog Resistive

Adjustable contrast

Microprocessor 500 MHz 32-bit CISC (Fanless CPU)

Flash Memory 256 MB

SDRAM 256 MB

Material Plastic Moulding

Serial Ports

The M-3919 includes two serial ports, which provide the connections to one or two M-4272 DigitalMotor Bus Transfer Systems using RS-232 (standard) or RS-485 (optional) communications. TheRS-485 serial port also provides the ability to connect multiple M-4272s in series to a single HMI.The M-3919 serial communication ports include the following capabilities:

One RS-485 serial port (DE9S) used for RS-485 M-4272 communications

One RS-232 serial port (DE9P) used for RS-232 M-4272 communications

Baud rates from 9,600 to 115,200

Point-to-point serial communications for all protocols

One 10 foot RS-232 Y Cable, BECO Part Number B-1300

Compact SD Card Slot

USB Ports 2 Hosts, 1 Client

Ethernet Port 10/100 Base-T (RJ45) used for Operator Interface Terminal (OIT) (PC) configura-tion, downloading program to HMI and Point-to-Point connection and communications usingMODBUS TCP/IP.

PWR (yellow) illuminated icon indicates if power is applied to the unit

CPU (red) illuminated icon indicates if the unit is operating correctly

COM (red) illuminated icon indicates communications activity on PLC port

RESET Switch to reinitialize the unit if an operational failure occurs

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SingleLine Diagram (SLD) Screens

When the MBT SYSTEM PRI Metering menu item is selected from the Selection Menu screen the unitdisplays either the pre-programmed Two-Breaker or Three-Breaker configuration of the MBTS Single-LineDiagram (Figures 8 and 9 respectfully). The Single-Line Diagrams include a graphical representation of eithera Two or Three-Breaker configuration with the appropriate number of M-4272 connected units. Also, remotemanual transfers and target reset can be performed from the Single-Line Diagram. Included in the graphicalrepresentation are the following real-time parameters:

Voltage (Three-Phase or Single-Phase)

Current (Source 1 and Source 2)

Frequency (Delta Angle, Delta Frequency and Delta Voltage)

52-S1 Breaker status (Open/Closed)

52-S2 Breaker status (Open/Closed)

Manual Transfer Ready status

Lockout/Block status

Remote/Local status

Device ON/OFF status

52-S1 Circuit Breaker In-Service status

52-S2 Circuit Breaker In-Service status

Transfer Complete

Transfer Incomplete

Figure 8 MBTS Single-Line Diagram Screen (Two-Breaker Configuration)

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Figure 9 MBTS Single-Line Diagram Screen (Three-Breaker Configuration)

Initiating Manual Transfers

The GDU/HMI includes the capability to initiate Manual Transfers from the Single-Line diagram.

See M-3919 Specification for additional details.

Optional Features

250 V dc Power Supply, BECO Part Number 430-00444

Two-Breaker or Three-Breaker configuration

RS-485 Communication with one 10 foot RS-485 Y-Cable, Beco Part Number B-1301

19" Mounting Panel, 6u height, BECO Part Number 441-41248

Physical

Size: 9.4" high x 12.4" wide x 2.6" deep (23.8 cm x 31.5 cm x 6.5 cm)

Approximate Weight: 4.4 lbs (2.0 kg)

Warranty

The M-3919 is covered by a two-year warranty from date of shipment.

Specification subject to change without notice.

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