mcu-unt-mmi manual.pdf
TRANSCRIPT
UNT-MMI-A
Intelligent MCC Control & Protection Management Device
Instruction Manual
Baoding UNT Electric Co., Ltd
Catalog
General Information.......................................................................................................1 Introduction.............................................................................................................1 Features ...................................................................................................................1 Metering and Monitoring........................................................................................1 Protection ................................................................................................................2 Control ....................................................................................................................2 Communication.......................................................................................................2
Protection and Control ...................................................................................................3 Overcurrent .............................................................................................................3 Locked/ Stalled Rotor .............................................................................................3 Acceleration Time...................................................................................................4 Overheating.............................................................................................................5 Unbalance ...............................................................................................................6 Ground Fault ...........................................................................................................7 Phase Sequence.......................................................................................................7 Phase Loss...............................................................................................................7 Overvoltage.............................................................................................................8 Undervoltage...........................................................................................................8 tE Time Protection ..................................................................................................8 Underpower...........................................................................................................10 Ultra Breaking.......................................................................................................10 Undervoltage Auto Restart....................................................................................10 Control Mode ........................................................................................................ 11 Programmable Inputs and Outputs........................................................................ 11
Hardware......................................................................................................................13 Display Module.....................................................................................................13 Main Module.........................................................................................................14
Human Interface...........................................................................................................15 Main Menu............................................................................................................15 View ......................................................................................................................16 Setting ...................................................................................................................22 Others....................................................................................................................24 Reset......................................................................................................................24 Trip Records..........................................................................................................25 Information ...........................................................................................................25
Typical Wiring..............................................................................................................26 Dimensions ..................................................................................................................27 Ordering information ...................................................................................................29 Specifications...............................................................................................................30
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General Information
Introduction
UNT-MMI-A Intelligent MCC Control & Protection Management Device is developed by Baoding UNT Electric co., Ltd. It is an intelligent motor management device designed mainly for MCC circuit. UNT-MMI-A Intelligent MCC Control & Protection Management Device is mainly applied to motor circuit that employs MCCB and contactor as the primary circuit, implementing metering, control, protection and monitoring, also telecommuting is available through field bus. It replaces conventional protection devices, meters, timers, relays, switches and panel indicators, simplifying the secondary circuit. It greatly increases the design efficiency, meanwhile decrease the field maintenance. For many years’ development, UNT-MMI-A Intelligent MCC Control & Protection Management Device has widely applied to the fields of power, petrochemistry, paper, metallurgy, nuclear industry and so on.
Features
Embed high-speed 32-bit microprocessor Metal enclosure designed, high anti-nuisance performance Pass 15 EMC tests of “National Center for Quality Supervision & Testing of Relay &
Protection Equipment” Opto-isolated 4—20mA output with optional destination Integrative design, without auxiliary components Compact design, flexible fixing Also applied to Increased Safety Motor Flexible control mode(local/remote/ECS) Internal contact point protective circuit, without external surge absorber Undervoltage auto restart Solve the defect that thermal overload relay and MCCB can’t model the electric and
thermal characteristics of the MCC load. Implement complex interlock, high efficiency Intelligent terminal, Reduce MCC and field wiring, replace timers, relays, protective
devices, meters, panel indicators Adopt Industrial field bus, easily connected with other devices Redundant network designed
Metering and Monitoring
Display phase current, ground current, line voltage, positive sequence current, negative
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sequence current, thermal capacity used, power factor, energy, etc. Trip record Analog output
Protection
Overcurrent Locked/stalled rotor Acceleration time Overheating Unbalance Ground fault Phase sequence Phase Loss Overvoltage Undervoltage tE time Underpower Ultra breaking Undervoltage auto restart
Control
Remote/local/ECS control mode Programmable input and output Normal/spare mode
Communication
Modbus@RTU through RS-485 Profibus-DP CAN
2
Protection and Control
Overcurrent
Overcurrent protection is the backup protection of the MCCB. The time delay can be programmed between 0-60s. To avoid starting current, overcurrent protection is disabled in starting condition, and enabled automatically after starting.
≥1
tgl Trip
Ia>Igl
Ib>Igl
Ic>Igl
Where: Igl, ranged from 0 to 12*Ie, is the setpoint value of overcurrent.
tgl is the time delay of overcurrent, ranged from 0 to 60s.
Ie is the rated current of the motor.
Locked/ Stalled Rotor
Mechanical equipment such as pumps and fans can be quickly damaged if it gets jammed resulting in a locked rotor stall. This device will issue a trip command when the current exceeds the locked rotor trip level after a programmable time delay. This device provides exact stalled rotor protection in different states: starting state and running state.
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&
tdz1 Trip
Ia>Idz
Ib>Idz
Ic>Idz
Where: Idz, ranged from 0 to 10*Ie, is the setpoint current of locked rotor.
tdz1 is the time delay of locked rotor in starting state, ranged from 0 to 60s.
Ie is the rated current of the motor.
Starting state
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tdz2 Trip
Ia>Idz
Ib>Idz
Ic>Idz
Where: Idz, ranged from 0 to 10*Ie, is the setpoint of locked rotor.
tdz2 is the time delay of locked rotor in running state, ranged from 0 to 60s.
Ie is the rated current of the motor.
Running state
Acceleration Time
Acceleration time is defined as the length of time required for the average motor current to drop below Full Load Current after a start command. Too long acceleration time causes overheating, damages the motor. An acceleration time trip is provided with a time delay.
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& Trip
Ia>Iqd
Ib>Iqd
Ic>Iqd
Where: Iqd, ranged from 0 to 5*Ie, is the set point of starting current.
tqd is the start time set point, ranged from 0 to 60s.
t is the accumulative time. Ie is the rated current of the motor.
t=tqd
Overheating
An overheating trip is caused when the thermal capacity value equals 100%. The device employs an advanced digital thermal model to calculate the thermal capacity. The motor thermal model accounts for all kinds of running conditions, and provides exact protections. Because of the different thermal effect of positive sequence current and negative sequence current, equivalent current Ieq is adopted in the model.
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211 IKIKIeq +=
Where: K1=0.25 (starting condition) K=1 (running condition) K2=6
I1 is positive sequence current I2 is negative sequence current
In order to avoid the starting current, assign K1 different value in starting condition and running condition. Because the heat effect of Negative sequence current is much more than positive sequence current, K2 is assigned 6. The accumulated heat of the motor Θ∑ is:
∫ Δ−Σ=−=ΘΣ
t
eeqeeq tIIdtII0
2222 ])05.1([])05.1([
Where: △t is the time interval to calculate accumulated overheating, here △t=0.1s. The overheating of the motor ΘT is: ΘT =Ie2 * Tfr Where: Tfr is the heating time constant. A overheating protection is triggered whenΘ∑ ≥ ΘT. Θ∑ =0 stand for a steady state, and there is no accumulated overheating. In steady state, the overheating protection performance time
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is:
2222
211 05.1)()( −+
=ee
fr
IIKIIKT
t
When the motor is stopped, the accumulated overheating will decrease exponentially. The cooling time constant Tsr is 4 times longer than heating time constant, on other hand, the motor reaches a steady state again in Tsr .
When tripped due to overheating, the device checks the overheating status of the motor. To protect the motor, the protection output would not return and restart of the motor is inhibited if Θ∑ ≥ ΘT . In case of emergency, select “Reset” menu and press “ENT” to clear the thermal memory, and then start the motor. A group of overheat protection performance time is shown in the table below:
Heating time constant performance time
Overload 100 200 300 400 500
1.1*Ie 930 1860 2790 3721 4651
1.3*Ie 170 340 510 680 850
1.5*Ie 87 174 261 348 435
1.7*Ie 56 112 168 224 280
2*Ie 34 68 102 136 170
3*Ie 13 26 39 52 65
4*Ie 6.7 13.4 20 27 34
5*Ie 4.2 8.4 12.6 17 21
6*Ie 2.9 5.8 8.7 11.6 14.5
7*Ie 2.1 4.2 6.3 8.4 10.5
8*Ie 1.6 3.2 4.8 6.4 8
Unbalance
This device monitors the three current phases, and calculates the average and maximum current. A trip or an alarm is triggered when the phase is unbalanced. The unbalance degree is programmable between 10%-60%.
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tbph Trip/Alarm Ru>bph%
Where: bph, ranged from 10 to 60, is the set unbalance degree.
tbph, ranged from 0 to 60s, is the time delay of unbalance.
Ru=|(Iavr – Imax)/Iavr| ×100%, Iavr=(Ia+Ib+Ic)/3, Imax=max(Ia,Ib,Ic)
Ground Fault
Both a trip and an alarm level can be enabled when ground fault current exceeds the set point after a programmable time delay. The set point range is 0-10 *Ie.
tjd Trip/Alarm I0>Ijd
Where:
tjd, ranged from 0 to 60s, is the time delay of ground fault.
Ijd, range from 0 to 10*Ie, is the set ground fault current.
Phase Sequence
When phase sequence incorrect, negative sequence current increase greatly, and positive sequence current decrease obviously. If negative sequence current/( negative sequence current + positive sequence current)>80%,then a trip is triggered.
Phase Loss
If one of the phase current is less than 10% of rated current, and other two phase currents are more than 20% of rated current, a trip is triggered. Phase Loss causes serious rotor overheating, even damages the motor. Its sensitivity is better than overheating protection, so it is possible to detect faults early and protect the motor. This device detects phase loss through calculating 3 phase current.
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Overvoltage
Serious overvoltage will cause core saturation of the motor, increase the magnetizing current, and damage the motor. If the voltage exceeds the overvoltage level after a programmable time delay a trip or an alarm will occur.
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tgdy Trip/alarm
Uab>Ugdy
Ucb>Ugdy
Where: Ugdy, ranged from 380V to 500V, is the set point value of overvoltage,.
tgdy, ranged from 0 to 60s, is the time delay of overvoltage.
Undervoltage
An undervoltage level can be selected for both alarm and trip. Undervoltage protection has two functions: 1． Long time undervoltage will damage the motor, so it is needed to stop the motor when
undervoltage. 2． When undervoltage, cut off the less important load to ensure the running of important device,
and to keep the system stability.
&
tddy Trip/alarm
Uab<Uddy
Ucb<Uddy
Where: Uddy, ranged from 0V to 380V, is the set value of overvoltage.
tddy, ranged from 0 to 60s, is the time delay of overvoltage.
tE Time Protection
It is applied to Increased Safety Motor. tE protection time=tEp×tEp1
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Where: tEp is the set time of tE protection tEp1 is the performance time when tEp=1
IA: the initial starting current IN: the rated current of the motor
On running condition, when the overcurrent reaches a certain degree, the device interrupts the motor power supply according to the tE time curves and tE time table. tE time protection should be enabled when starting the motor. NOTE:
1． This device couldn’t install and wire in explosive situation. 2． When applied to increased safety motor, the parameters must be set professionally. 3． When applied to increased safety motor, the rated current can not exceed the maximum
current of the motor. 4． When applied to increased safety motor, the performance time can not exceed 1.7 times
of the tE time (refer to the nameplate of the increased safety motor).
tE time curves
tE time table
1.0(S) 4.0(S) 4.3S) 4.6(S) 5.0(S) 5.5(S) 6.0(S) 15.0(S)tEp
IA/IN
3.00 4.00 16.00 17.20 18.40 20.00 22.00 24.00 60.00 3.20 3.48 13.91 14.96 16.00 17.39 19.13 20.87 52.17 3.40 3.08 12.31 13.23 14.15 15.38 16.92 18.46 46.15 3.60 2.76 11.03 11.86 12.69 13.79 15.17 16.55 41.38 3.80 2.50 10.00 10.75 11.50 12.50 13.75 15.00 37.50 4.00 2.29 9.14 9.83 10.51 11.43 12.57 13.71 34.29 4.20 2.11 8.42 9.05 9.68 10.53 11.58 12.63 31.58 4.40 1.95 7.80 8.39 8.98 9.76 10.73 11.71 29.27
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4.60 1.82 7.27 7.82 8.36 9.09 10.00 1091 27.27 4.80 1.70 6.81 7.32 7.38 8.51 9.36 10.21 25.53 5.00 1.60 6.40 6.88 7.36 8.00 8.80 9.60 24.00 5.20 1.51 6.04 6.49 6.94 7.55 8.30 9.06 22.64 5.40 1.43 5.71 6.14 6.57 7.14 7.86 8.57 21.43 5.60 1.36 5.42 5.83 6.24 6.78 7.46 8.14 20.34 5.80 1.29 5.16 5.55 5.94 6.45 7.10 7.74 19.35 6.00 1.23 4.92 5.29 5.66 6.00 6.77 7.38 18.46 6.20 1.18 4.71 5.06 5.41 5.88 6.47 7.06 17.65 6.40 1.13 4.51 4.85 5.18 5.63 6.20 6.76 16.90 6.60 1.08 4.32 4.65 4.97 5.41 5.95 6.49 16.22 6.80 1.04 4.16 4.47 4.78 5.19 5.71 6.23 15.58 7.00 1.00 4.00 4.30 4.60 5.00 6.00 6.00 15.00 8.00 1.00 4.00 4.30 4.60 5.00 5.50 6.00 15.00
Underpower
Both underpower alarm and trip are provided with a programmable time delay.
tqgl Trip/Alarm P<Pqgl
Where:
tqgl, ranged from 0 to 60s, is the time delay of ground fault.
Pqgl, ranged from 0 to 10*Pe, is the set ground fault value. Pe is the rated power of the motor.
Ultra Breaking
When the current of MCCB is beyond Ifd, to protect the contactor, the break contactor is disabled, and programmable output 2 can be programmed to control the motor. NOTE: Ifd is the maximum breaking current of the contactor, ranged from 0 to 4000A.
Undervoltage Auto Restart
It is possible to automatically restart the motor after a momentary power loss of the primary circuit if this feature is enabled. When the control voltage drops below the the dropout voltage, the contactor is de-energized. The device can restart the selected drive upon the return of the supply voltage. In many cases, the device is AC powered, and the device also loses power supply simultaneously
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after control circuit power loss. In this case, the device would not supervise the 3-phase voltage, but it is still available to restart the motor upon the return of the power supply due to the memory chip inside.
Running condition
undervoltage
Voltage recovers in t1?
Delay t2
Auto restart Motor stopped
Yes
No
Undervoltage auto restart diagram
Where: t1, ranged from 0 to 100s, is the limited of undervoltage time. t2, ranged from 0 to 600s, is the time delay of undervoltage auto restart.
Control Mode
Local mode: control the motor through the control keys on the faceplate Remote mode: remote-control the motor through the fixed input(X2-9, X2-10, X2-11) ECS mode: control the motor through communication These three mutual interlock control modes can be set through faceplate or external switch. When the device is in local mode, remote and ECS mode is disabled. When the device is in remote mode, local and ECS control is disabled. When the device is in ECS mode, local and remote control mode is disabled.
Programmable Inputs and Outputs
UNT-MMI-A Intelligent MCC Control & Protection Management Device has 5 programmable
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inputs and 2 programmable outputs. Start and stop the motor can be easily implemented through programmable inputs and outputs, also complex interlock, for example, the normal/spare logic and the interlock of temperature, water level and rotate speed. It replaces the conventional relays, making the design easy.
Starter types Starter types Internal relay control Non-reversing starter Single-relay control Reversing starter Dual-relay control Resistance Drop-Voltage starter Dual-relay control
Dual-relay control Wye-Delta transition starter Triple-relay control
Autotransformer starter Triple-relay control
Control mode Control mode Control location remarks
Local control Remote control Low-voltage switchgear cabinet
Operation box near the motor
Low-voltage switchgear cabinet
DCS connection Dual-location control
Operation box near the motor
DCS connection
Local control Remote control
ECS
Low-voltage switchgear cabinet
Operation box near the motor
DCS connection
External switch
Low-voltage switchgear cabinet
DCS connection
communication Set on the panel External switch
Triple-location control
Low-voltage switchgear cabinet
DCS connection
communication Set on the panel External switch
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Hardware
Display Module
UNT-MMI
TRIPPED ALARM REMOTE RUNNINGCOMM SPARE
START
STOP
LED indicators
RUNNING: indicates that the motor is running. COM: indicates that the device is communicating.
TRIPPED: indicates that a trip has occurred. This indicator always latches; a RESET command must be initiated to allow the latch to be reset. ALARM: indicates that an alarm existing. This indicator is never latched; after the alarm condition recover, it turns off.
REMOTE: indicates that the device is in remote control mode. SPARE: indicates that the device is in spare mode.
Display
The LCD communicates all messages in simple English.
Keypad
Program keys： ←/ESC: Move the cursor left or cancel a certain operation.
↑: Increase the selected digit or change the selected item. ↓: Decrease the selected digit or change the selected item. →/ENT: Confirm a certain operation.
Control keys： FORWARD: Start the motor in the forward direction. REVERSE: Start the motor in the reverse direction. STOP: Stop the motor.
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Main Module
GRUOND
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Human Interface
Please check carefully before the first power on. After power on, the device performs self-diagnosis, at the same time, all LED indicators turn on. After self-diagnosis, the display shows three phase currents and the status of the motor, and the running indicator turn off. Otherwise, check the power supply and the connection between display module and main module. The running indicator turns on when the motor is running, and the display shows the phase currents and the status of the motor. Press “↑” or “↓” to show the following items circularly. Refer to Figure below for more details.
Ia=xx.xxA Ib=xxx.x A
Ic=xxx.xA FORWARD
Io=xxx.xA Ie=xxxx A
If=xxxxA Dgr=xx.xx%
Uab=xxx.x V
Ucb=xxx.x V
P=xxxx KW
Q=xxxx Kvar
PF=0.xxx
KWH=xxxxxxxxxx
KVarH=xxxxxxxxxxx
2006-12-2508-26-15
ProgInput 1-5
O O O O O
ControlMode Local
Normal/spare Normal
The following abbreviations are used in the messages: OH: overheating G/F: ground fault UnderP: underpower A_time: acceleration time Func: function UV,UnderV: undervoltage OverV: overvoltage Squc: Phase sequence UltraBrk: Ultra breaking INFO: information Comm: communication Prog: programmable AStart: undervoltage auto restart Run_para: running parameter CtrlMode: control mode Unblc: unbalance Dgr: thermal capacity used Dly: delay
Main Menu
Press “ENT” or “ESC” to enter the main menu.
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VIEW SETTINGS
SYSTEM OTHERS
RESET TRIPS
INFO
Ia=xx.xxA Ib=xxx.x A
Ic=xxx.xA FORWARD
or
View
Select “VIEW” in main menu, and press “ENT” to enter. You can view all the setpoints here.
Protection ProgIO
Comm 4-20mA AStart 1．Protect
Run_para OH G/F
OC Jam tE
Unblc UnderP
A_time Squc
UnderV OverV
UltraBrk PhL
Protection ProgIO
Comm 4-20mA AStart
For example, let’s view the running parameters. Select “Run_para” and then press “ENT” to enter.
Run_para OT G/F
OC Jam tE
Running Parameter
CT Multiple xxxx
Running Parameter
CT Number xxxx
Running Parameter
Rated Cur xx.xxA
The multiple of the CT
The number of the CT
Rated current of the motor
The multiple of CT stand for the transform ratio of external CT. For example, if the transform ratio of external CT is 1200/5, then the multiple of the CT would be 240. The CT number is the module of CT. If external CT is not used, assign the CT multiple “1”, otherwise the current would be disturbed. The motor rated current must be identical with the motor nameplate, or
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malfunction may occur. 2．ProgIO ⑴ Input1
Input1 Input Mode xxxx
Input1
Mask xxxx
Input1
Func xxxx
Input mode Range: Open, Close
Mask bit. Detemine when the input is masked.
The function of the programmable input
Input1
Delay xxxxs
Time delay
Input1 Input2
Input3 Input4
There is a table (table 1) containing the alternative of programmable inputs. Table 1
Sort Optional terms Description Open External contact normally closed Input mode Close External contact normally opened Valid Valid, not masked Local Masked when the device is in local control mode Remote Masked when the device is in remote mode ECS Masked when the device is in ECS mode Spare Masked when the device is in spare state
Mask bit
Masked Masked, disabled Start A Start A Start B Start B Stop A Stop A Stop B Stop B Stop Stop Trip Button Serve as a trip push button Reset Reset trip signal output Local/Remote Switch local/remote Remote/ECS Switch remote/ECS Normal/Spare Switch normal/spare Start_Stop A Keep contactor A closed when the input is valid, and
keep contactor A opened when there is no valid input Start_Stop B Keep contactor B closed when the input is valid, and
keep contactor B opened when there is no valid input
Function
Mask Ctrl Mask the start and stop function of the programmable input
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Dis protect Disable all protections with a valid input Time delay xxx.x s
⑵output1
Output1
Output Mode xxxx
Output1
Output Pulse xxxx
Output1
Func xxxx
Output mode Range: Open, Close
Output pulse type Range: Long, Short
The function of the programmable output.
Output1
Delay xxxxs
Time delay
Input5 Output1
Output2
Output1
Length xxxxs
Length of output pulse
There is a table (table 2) containing the alternative of programmable outputs.
Table 2 Sort Optional terms Description
Open Break contact Output Mode Close Make contact Long Long pulse output Output pulse Short Short pulse output Masked Masked Prog Input 1 Energize when programmable input 1 is closed Prog Input 2 Energize when programmable input 2 is closed Prog Input 3 Energize when programmable input 3 is closed Prog Input 4 Energize when programmable input 4 is closed Prog Input 5 Energize when programmable input 5 is closed Remote Energize when the device is in remote control mode ECS Energize when the device is in ECS control mode Spare Energize when the device is in spare mode Alarm Energize when there is an alarm Trip Energize when there is a trip Trip or Alarm Energize when there is a an alarm or a trip Undervoltage Energize when undervoltage Ground Fault Energize when ground fault Forward Energize when the motor is running in the forward direction
Function
Reverse Energize when the motor is running in the reverse direction
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Super Break Super breaking output Time Delay xxx.x s Pulse Length xxx.x s
3．Comm
Comm A Address xxx
Comm A
Baud Rate xxxxx
Comm A Parity xxxx
Communication address Range: 1-230
Baud rate Range: 4800, 9600,19200
Parity check Range: Even, Odd, None
Comm A
Comm B
4．4-20mA
Protect ProgIO
Comm 4-20mA AStart
4-20mA
Destination xxx
4-20mA
Multiple xx.xx
The destination of analog output
The multiple of rated value
The table below shows the alternative of analog output destination and the multiple of rated value that corresponding to the upper limit of 4--20mA output.
Table 3 Sort Setpoint
Ia Ib Ic I0 Uab Ubc Dgr (Thermal capacity used)
Output destination
P Multiple of rated value 1-2
5．AStart
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Protect ProgIO
Comm 4-20mA AStart
AStart
Delay xxxs
AStart
UV Time xxxs
Time delay of Undervoltage Auto Restart
Undervoltage time limit that the device can restart the motor
The diagram below illuminates the undervoltage auto restart.
Running condition
undervoltage
Voltage recovers in t1?
Delay t2
Auto restart Motor stopped
Yes
No
Undervoltage Auto Restart Diagram
NOTE: ① t1 is the set time that the motor could auto restart from undervoltage, and t2 is the auto restart delay time. ② If undervoltage auto restart is not required, just set t1 to 0.
There is a table (Table 4) containing the items that you can set and view. Table 4
Sort Description The multiple of CT (1--1000) The number of CT (1--7)
Running parameters
Rated current of the motor (0.1--1000) Heating time constant Cooling time constant Enable/disable overheating protection Overheating protection trip/alarm
Setpoint value of ground fault
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Time delay of ground fault (0—55s) Enable/disable ground fault protection Ground fault protection trip/alarm Setpoint value of overcurrent Time delay of overcurrent protection (0—55s) Enable/disable overcurrent protection Overcurrent protection trip/alarm Setpoint current of Locked rotor Time delay 1 of locked rotor (0—55s, starting condition) Time delay 2 of locked rotor (0—55s, running c) Enable/disable locked rotor protection Locked rotor protection trip/alarm Alternative of tE time curve (1--15) Enable/disable tE time protection tE time protection trip/alarm Setpoint degree of unbalance Time delay of unbalance protection Enable/disable unbalance protection Unbalance protection trip/alarm Setpoint value of underpower Time delay of underpower Enable/disable underpower protection Underpower protection trip/alarm Setpoint current of acceleration time protection (1—1000A) Acceleration time (0—60s) Time delay of acceleration time protection Enable/disable acceleration time protection Acceleration time protection trip/alarm Enable/disable phase sequence protection Phase sequence protection trip/alarm Setpoint of undervoltage Time delay of undervoltage protection Enable/disable undervoltage protection Undervoltage protection trip/alarm Setpoint of overvoltage Time delay of overvoltage protection Enable/disable overvoltage protection Overvoltage protection trip/alarm Setpoint current of ultra breaking Enable/disable ultra breaking protection Ultra breaking protection trip/alarm Enable/disable phase loss protection
Config protections
Phase loss protection trip/alarm
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Input mode of programmable input 1 Mask bit of programmable input 1 Function of programmable input 1 Time delay of programmable input 1 Input mode of programmable input 2 Mask bit of programmable input 2 Function of programmable input 2 Time delay of programmable input 2 Input mode of programmable input 3 Mask bit of programmable input 3 Function of programmable input 3 Time delay of programmable input 3 Input mode of programmable input 4 Mask bit of programmable input 4 Function of programmable input 4 Time delay of programmable input 4 Input mode of programmable input 5 Mask bit of programmable input 5 Function of programmable input 5 Time delay of programmable input 5 Output pulse of programmable output 1 Function of programmable output 1 Time delay of programmable output 1 Pulse length of programmable output 1 Output pulse of programmable output 2 Function of programmable output 2 Time delay of programmable output 2
Config programmable input&output
Pulse length of programmable output 2 Address of communication port A (1-230) Baud rate of communication port A Parity check of communication port A Address of communication port B (1-230) Baud rate of communication port B
Config communication
Parity check of communication port B Destination of analog output
Config 4-20mA output Multiple of rated value Time delay of undervoltage auto restart Set undervoltage auto
restart Time limit of undervoltage
Setting
Select “SETTING” in the menu and press “ENT” key, then you enter password-input page.
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Input password
0000
Press “ESC” to move the cursor; press “↑” or “↓” to increase or decrease the selected digit, and press “ENT” to confirm. If the correct password “9998” is input, it enter to the setting page; if the password input is not correct, it return to the main menu after a message of “Password Error”. The setting pages has the same menu structure with view pages, even the operation method is identical. Press “↑” and “↓” to change the selected item or the selected digit, press “ESC” to return to the prior menu, and press “ENT” to enter to corresponding setting page. Operation example: Overheating
Run_para OH G/F
OC Jam tE
Overheating
HeatingConst:0300
Overheating
CoolingConst:0600
Overheating Enable
Heating time constant
Cooling time constant
Enable/disable overheating protection
Overheating
Alarm Trip/Alarm
Overheating
Save Cancel You can save the setting or not.
System Select “SYSTEM” in main menu, press “ENT” to enter system setting page after input password “0101”.
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VIEW SETTING
SYSTEM OTHERS
Input Password
0101
System
CtrlMode xxxx
System
Normal/spare xxxxx
System
Save Cancel
Control mode consists of local mode, remote mode and ECS mode. When the device is in local mode, you can control the motor though the push button on the faceplate and the programmable input, here the remote and ECS mode is disabled; When the device is in remote mode, remote control and programmable input control is available, here the local and ECS control is disabled; when the device is in ECS mode, ECS and programmable control is available, here the local and remote control mode is disabled.
Others
Select “OTHERS” in main menu, press “ENT” to enter system setting page after input password “1010”. There you can set time and date, clear energy consumption, clear running time of the motor and clear motor start numbers.
VIEW SETTING
SYSTEM OTHERS
Input Password
1010
Set time
Clear Energy Used
Clear Running Time
Clear Start Numbers
Reset
Select “RESET” menu in main menu, and press “ENT” key to reset trip signal output.
RESET TRIPS
INFO
Resete OK.
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Trip Records
Select “TRIPS” in main menu, press “ENT” to view the five latest trip records with pre-trip actual values, including trip type, phase currents, zero-sequence current, voltage, thermal capacity used, date and time, and so on.
Information
Select “INFO” in main menu, press “ENT” to view the moto0r running time, start numbers and protection numbers.
RESET TRIPS
INFO
Running Time
Start Numbers
Protection Numbers
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Typical Wiring
Input 4
Input 5
Input 3
Input 2
X2-1Pr
og Inp
utsPow
er
Ground
N-
Fixed
Inputs
Con
trol
Cir
cuit
Ua Ub Uc
Comm
unication
Comm A
Comm B
Shield
4-20mA Output
ProgOutput 1
ProgOutput 2
Fault TRip
Device Fault,Power Loss
CommonX2-2
X2-3
X2-4
X2-5
X2-6
X2-7
X2-8
X2-9
X2-10
X2-11
Input 1
Remote start A
Remote Start B
Remote Stop
Contactor A StatusContactor B Status
X1-1
X1-2
X1-3 L+
X1-13
X1-14
X1-12
X1-10
X3-4
X3-5
X3-6
X3-7
X3-8
X3-1
X3-2
X1-6
X1-7
-
-
+
+
X1-8
X1-9X2-14
X2-15
X2-17 X2-18 X2-19
X2-12
X2-13
X1-11
KM1KT1
KT2
KT3
Alarm X1-4
X1-5
DCS Operation
Ia Ib Ic
Alarm Signal
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Dimensions
Display Module
UNT-MMI
TRIPPED ALARM REMOTE RUNNINGCOMM SPARE
START
STOP
FRONT VIEW SIDE VIEW
Main Module
SIDE VIEW REAR VIEW
MAIN MODULE
CT
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29.0
91.1
52.0
CT1、CT2、CT3、CT4、CT6、CT7
79.5
93.7
R55.5
?30.0
56.5
52.0
111.090.0
CT5
B
C A
B
AC
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Ordering information
UNT-MMI-A × × × × × ×
1: CT1(P≤1kW) 2: CT2(1 kW <P≤10 kW) 3: CT3(10 kW <P≤25 kW) 4: CT4(25 kW <P≤50 kW) 5: CT5(50 kW <P≤75 kW) 6: CT6(75 kW <P≤200 kW, external CT output 1A)7: CT7(75 kW <P≤200 kW, external CT output 5A)1: LED display module 2: LCD display module 1: 220V/AC power supply 2: 220V/DC power supply 3: 110V/DC power supply 0: No communication 1: Profibus 2: Single Modbus 3: Double Modbus 4: CAN 0: No 4—20mA output 1: One 4—20mA output 1: Non-reversing starter 2: Reversing starter 3: Resistance Drop-Voltage starter 4: Wye-delta ransition starter 5: Autotransformer starter A: Design sequence code
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Specifications
PPoowweerr SSuuppppllyy AC nominal: 220V/50Hz DC nominal: 110V or 220V Power Range: 80%--120% Power Dissipation: 2W~6W Supply interval: 200ms EEnnvviirroonnmmeennttaall Operation temperature: -20℃--55℃ Storage temperature: -25℃--70℃ Humidity(non-condensing): 95%(max) Altitude: 2000m International Protection: IEC529-IP53 Vibration Test: Endure vibration, shock and bump test, grade 1 MMeetteerriinngg && PPrrootteeccttiioonn Metering Accuracy: Better than 1% Protection Accuracy: Better than 1% Protection time delay: <10ms OOuuttppuutt Relay Contactors: Control : 220VAC/8A(Max) Status&Signal : 220VAC/1A(Max) Programmable Output 1: 220VAC/5A(Max) Programmable Output 2: 220VAC/8A(Max) Analog Output: Output: 4—20mA Max load: 300Ω Temperature drift: 150ppm/℃ Accuracy: 0.5%
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CCoommmmuunniiccaattiioonnss Protocol: Modbus@RTU or Profibus Total station: 32 on a single channel, 122 if repeaters used Transfer medium & Max Distance:
Twisted-pair: 1km Single mode fiber 10km Multimode fiber 2km Speed:
Modbus@RTU: 6M(Max) Profibus-DP: 19.2k(Max) TTyyppee TTeessttss Fast Transient: 2kV Impulse: Differential-mode: 1kV Common-mode: 2.5kV Electrostatic Discharge : ±8kV RFI: 10V/m Insulation Resistance: ≥500MΩ Dielectric strength: 2000V,1min Shock and bump: ±5kV
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Modbus Protocol
Function code: 02—switch input
Register Address Description 10001 (0000) Programmable input 1 10002 (0001) Programmable input 2 10003 (0002) Programmable input 3 10004 (0003) Programmable input 4 10005 (0004) Programmable input 5 10006 (0005) Reserved 10007 (0006) Reserved 10008 (0007) Reserved 10009 (0008) Reserved 10010 (0009) Reserved 10011 (000A) Running in the forward direction 10012 (000B) Running in the reverse direction 10013 (000C) Remote control mode 10014 (000D) Local control mode 10015 (000E) ECS control mode 10016 (000F) Normal/Spare state (0—Normal, 1--Spare) 10017 (0010) Overheating protection 10018 (0011) Ground fault protection 10019 (0012) Overcurrent protection 10020 (0013) Trip button pressed 10021 (0014) Locked/stalled rotor protection 10022 (0015) Unbalance protection 10023 (0016) Acceleration time protection 10024 (0017) tE time protection 10025 (0018) Undervoltage protection 10026 (0019) Overvoltage protection 10027 (001A) Phase sequence protection 10028 (001B) Phase loss protection 10029 (001C) Alarm signaling 10030 (001D) Trip signaling 10031 (001E) Underpower protection 10032 (001F) SOE (1—there is new SOE information)
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Function code: 04—register input
Register Address Description 0 Programmable input 1 1 Programmable input 2 2 Programmable input 3 3 Programmable input 4 4 Programmable input 5 5 Reserved 6 Reserved 7 Reserved (remote start A) 8 Reserved (remote start B) 9 Reserved (remote stop) 10 Running in the forward direction 11 Running in the reverse direction 12 Remote control mode 13 Local control mode 14 ECS control mode
30001 (0000)
15 Normal/Spare state (0—Normal, 1--Spare) 0 Overheating protection 1 Ground fault protection 2 Overcurrent protection 3 Trip button pressed 4 Locked/stalled rotor protection 5 Unbalance protection 6 Acceleration time protection 7 tE time protection 8 Undervoltage protection 9 Overvoltage protection 10 Phase sequence protection 11 Phase loss protection 12 Alarm signaling 13 Trip signaling 14 Underpower protection
30002 (0001)
15 SOE (1—there is new SOE information) 30003 (0002) Phase current A = 30003/ctA 30004 (0003) Phase current B = 30004/ctA 30005 (0004) Phase current C = 30005/ctA 30006 (0005) Zero sequence current = 30006/ctA 30007 (0006) Positive sequence current =30007/ctA 30008 (0007) Negative sequence current =30008/ctA 30009 (0008) Thermal capacity used 30010 (0009) Active power = 30010/ctA (kW)
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30011 (000A) Reactive power = 30011/ctA (kVar) 30012 (000B) Uab 30013 (000C) Ubc 30014 (000D) ctA (CT multiple) 30015-30030 (000E-001F) Reserved 30033 (0020) Phase current A = 30033/ctA 30034 (0021) Phase current B = 30034/ctA 30035 (0022) Phase current C = 30035/ctA 30036 (0023) Zero sequence current = 30036/ctA 30037 (0024) Positive sequence current =30037/ctA 30038 (0025) Negative sequence current =30038/ctA 30039 (0026) Thermal capacity used 30040 (0027) Active power = 30040/ctA (kW) 30041 (0028) Reactive power = 30041/ctA (kVar) 30042 (0029) Uab 30043 (002A) Ubc
Pre-trip actual value
MS Byte
Trip type: 1— overheating protection 2— ground fault protection 3— overcurrent protection 4— trip button pressed 5— locked/stalled rotor protection 6— unbalance protection 7— acceleration time protection 8— tE time protection 9— undervoltage protection 10— overvoltage protection 11— phase sequence protection 12— phase loss protection 13— alarm signaling 14— trip signaling 15— underpower protection
30044 (002B)
LS Byte MS Byte Year
30045 (002C) LS Byte Month MS Byte Day
30046 (002D) LS Byte Hour MS Byte Minute
30047 (002E) LS Byte Second MS Byte Millisecond (MS)
30048 (002F) LS Byte Millisecond (LS)
SOE Information
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Function code: 05—switch output (control)
Register Address Description 00001 (0000) Start A (1—start A, 0—no operation) 00002 (0001) Start B (1—start B, 0—no operation) 00003 (0002) Reset 00004 (0003) Stop
Function code: 09—time calibration
Register Address Description 00001 (0000) Year (0-99) 00002 (0001) Month (1-12) 00003 (0002) Day (1-31) 00004 (0003) Hour (0-23) 00005 (0004) Minute (0-59) 00006 (0005) Second (0-59) 00007 (0006) Millisecond (MS) 00008 (0007) Millisecond (LS)
Millisecond range: 0-999
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