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3. Operation and Display 

EM-GU User’s Manual 

 

6

 

3. Operation and Display 

The motor soft starter has five kinds of working state: Ready, starting, Running, stopping and Fault, the showing 

parameter is easy to understand and modify. 

3.1 Keypad and Operation 

 

Diagram 3.1 Operation keypad 

No. 

Name 

Function 

 

LCD display area 

LCD shows the parameter, monitoring data and Error codes. 

 

Status indicator 

area 

Ready 

On indicates that the soft starter is ready. 

Run 

On indicates that the motor is starting, running, soft stop state 

Trip 

On indicates that the soft starter is in a fault state, flashing indicates 
that the soft starter is in warning state. 

Local 

On indicates that the soft starter is in keypad control mode. 

  Operation key area 

 

Exit/Cancel key: Exit menu or cancel modification of parameters. 

 

Shift  key:  The  fault  log  can  be  cycled  through  while  on  the  main 
display  screen,  and  select  the  digit  to  be  modified  when  modifying 
parameters. 

 

UP key: Increase data or parameter code. 

 

DOWN key: Decrease data or parameter code. 

 

Menu/Enter key: Enter menu and confirm the parameter setting. 

 

R/L key: For switching between keypad control and terminal control 

 

Running key: Start the soft starter in the keypad control mode. 

 

Stop/Reset key: When in operation, press this key for stop operation; 
when in fault alarm, press this key for fault reset operation. 

Start and stop operation:   

The  soft  starter  keypad screen  shows “READY”, and press 

  running key to start the motor.  In the  In the 

process of starting, the screen shows starting current “xxxA”. When the starting is completed, can be press 

 

UP key to check three phase current information. And press 

  Stop/Reset key to stop the motor. 

 

Summary of Contents for EM-GU Series

Page 1: ......

Page 2: ...s to the output terminals U V W Please seal the terminal switch insulation glue after finishing connect them The soft starter and its enclosures must be fixedly earthed During the maintenance and repa...

Page 3: ...2 6 Description of control circuit terminals 5 3 Operation and Display 6 3 1 Keypad and Operation 6 3 2 Description of Function Parameters 8 3 3 Fault Diagnosis and Solution 14 4 Test Run and Applicat...

Page 4: ...functions for easy fault finding Multiple protection functions such as overcurrent overheat phase loss and thermal overload Humanized design detachable operation panel built in Chinese and English dis...

Page 5: ...del and Installation Dimension Diagram 2 2 EM GU installation dimension and mounting holes Model Rated Power Rated Current External Dimensions mm Installation Dimensions mm KW A H W D H1 W1 d EM GU3 0...

Page 6: ...h soft starters Starting Frequency Not more than 4 hour when the motor is started with full load The starting time is according to the loading equipment Cooling Mode Fan cooling Protective Grade IP20...

Page 7: ...evices Connection Diagram EM GU series soft starters can be connected to the motor by line mode connection or delta mode connection Line Mode connection Diagram 2 4 EM GU device connection diagram Lin...

Page 8: ...l Input and output signal terminals for MODBUS RTU protocol communication 485 Digital input IN1 24V Run When F49 0 there are two ways of connections for your selection those are 2 wire connection and...

Page 9: ...it Cancel key Exit menu or cancel modification of parameters Shift key The fault log can be cycled through while on the main display screen and select the digit to be modified when modifying parameter...

Page 10: ...and press MENU ENTER key again to enter the parameter that needs to be modified select the option or modify the value by UP key or DOWN key and then press MENU ENTER key again means that the new data...

Page 11: ...ad control and communication control are valid 6 Term Comm Both terminal control and communication control are valid 7 Key Term Comm Keypad control terminal control communication control all valid F04...

Page 12: ...Select programmable relay output method F14 Programmable Delay Time Range 0 600s Default 0s Description Set the programmable output relay closed delay time F15 4 20 mA Current Limit Range 50 500 Defau...

Page 13: ...Starting Over Current OC P C Range 50 600 Default 500 Description Set the multiple of overcurrent for soft starter starting F21 Starting Over Current OC Time Range 0s 120s Default 5s Description Set t...

Page 14: ...2 Default 0 Option 0 Any 1 Positive 2 Negative F33 IA Calibration Range 10 1000 Default 100 Description Calibration of the soft starter s current monitoring circuit to match the external current measu...

Page 15: ...Over Voltage Range 0 1 Default 0 Option 0 Alarm Stop 1 Ignore The protection function is disabled F43 Under Voltage Range 0 1 Default 0 Option 0 Alarm Stop 1 Ignore The protection function is disable...

Page 16: ...n stop 3 Level relay Supply IN1 off and IN2 off start IN1 on and IN2 on stop 4 Level relay Drain IN1 off and IN2 off stop IN1 on and IN2 on start Note When F49 0 the IN3 function is fault output When...

Page 17: ...lty Related parameters No parameter adjustment Output phase loss 1 Check whether the SCR or thyristor is damaged 2 Motor cable has one phase or multiple phases open circuit Please check whether the mo...

Page 18: ...he parameters Related parameters F20 F21 F40 External Fault 1 External fault terminal has input Please check external input terminal Related parameters No parameter adjustment Phase Sequence 1 The inp...

Page 19: ...n Press key or external stop button can reset the error state Note When ambient temperature is less than 10oC the starter should be power on to preheat for 30 minutes and then to start 5 2 Special App...

Page 20: ...duction equipment Intelligent motor soft starter the application of network technology used motor control technology to adapt to the rapid development of electric power automation technology in the hi...

Page 21: ...045 45 90 EM GU3I 055 55 110 EM GU3I 075 75 150 EM GU3I 090 90 180 350 950 400 EM GU3I 115 115 230 EM GU3I 132 132 260 400 1130 400 EM GU3I 160 160 320 EM GU3I 200 200 400 EM GU3I 250 250 500 600 135...

Page 22: ...en soft stop Parameters setting The parameter settings are consistent with the online soft starter parameters please refer to chapter 3 2 Note The main power circuit breaker must be closed before the...

Page 23: ...code 01 Code 03 06 Function description Read register Write in one register 03 WORD 6 2 2 Address Definition Addresses corresponding to parameters Parameter Code Address F00 F50 0x0000 0x0032 Control...

Page 24: ...n 0 Off Bit0 IN1 Start Bit1 IN2 Stop Bit2 IN3 Fault 6 3 Abnormal Feedback Code Name Explanation 01 Illegal function Soft starter does not support this function code 02 Illegal data address Illegal add...

Page 25: ...2 Torque Start 0 F05 CLS Current Limited 50 600 300 F06 Initial Start Voltage 30 80 35 F07 VRS Start Time 1s 120s 15s F08 Stay Voltage 60 85 65 F09 Initial Ramp Time 1s 10s 5s F10 Stay Time 1s 120s 10...

Page 26: ...00 100 F34 IB Calibration 10 1000 100 F35 IC Calibration 10 1000 100 F36 Voltage Calibration 10 1000 100 F37 4 20mA Lower Calibration 0 150 0 20 0 F38 4 20mA Upper Calibration 0 150 0 100 0 F39 Runnin...

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