Manualsbrain.com
  1. Manuales
  2. Marcas
  3. Mitsumi electronic
  4. MR-J3- A
  5. Manual De Usuario

Mitsumi electronic MR-J3- A Manual De Usuario

Descargar
Página de 670
 
 
4 -  7 
4. STARTUP 
 
4.2.5 Actual operation 
Start actual operation after confirmation of normal operation by test operation and completion of the 
corresponding parameter settings. Perform a home position return as necessary. 
 
4.2.6 Trouble at start-up 
CAUTION 
Excessive adjustment or change of parameter setting must not be made as it will 
make operation instable. 
 
 
POINT 
 
Using the optional MR Configurator, you can refer to unrotated servo motor 
reasons, etc. 
 
 
The following faults may occur at start-up. If any of such faults occurs, take the corresponding action. 
 
(1) Troubleshooting 
 
No.  Start-up sequence 
Fault 
Investigation 
Possible cause 
Reference 
1 Power 
on 
LED is not lit. 
LED flickers. 
Not improved if connectors CN1, 
CN2 and CN3 are disconnected. 
1. Power supply voltage fault 
2. Servo amplifier is faulty. 
 
 
 
 
Improved when connectors CN1 
is disconnected. 
Power supply of CN1 cabling is 
shorted. 
 
 
 
Improved when connector CN2 is 
disconnected. 
1. Power supply of encoder 
cabling is shorted. 
2. Encoder is faulty. 
 
 
 
Improved when connector CN3 is 
disconnected. 
Power supply of CN3 cabling is 
shorted. 
 
 
Alarm occurs. 
Refer to section 9.2 and remove cause. 
Section 9.2
2 
Switch on servo-
on (SON). 
Alarm occurs. 
Refer to section 9.2 and remove cause. 
Section 9.2
Servo motor shaft is 
not servo-locked 
(is free). 
1. Check the display to see if the 
servo amplifier is ready to 
operate. 
2. Check the external I/O signal 
indication (section 6.7) to see if 
the servo-on (SON) is ON. 
1. Servo-on (SON) is not input. 
(Wiring mistake) 
2. 24VDC power is not supplied to 
DICOM. 
Section 6.7
3 Enter 
input 
 
command. 
(Test operation) 
Servo motor does 
not rotate. 
Check the cumulative command 
pulse on the status display or MR 
Configurator (section 6.3). 
1. Wiring mistake 
(a) For open collector pulse 
train input, 24VDC power is 
not supplied to OPC. 
(b) LSP and LSN are not on. 
2. Pulse train is not input from the 
controller. 
3. Electromagnetic brake is 
operating. 
Section 6.3
 
 
 
Check if the Ready (RD) is ON. 
 
 
 
 
Check the parameter No.PA13 
(command pulse input form) 
setting. 
 
 
 
 
Check if the Electromagnetic 
brake interlock (MBR) is ON. 
 
 
 
Servo motor run in 
reverse direction. 
Check the cumulative command 
pulse on the status display or MR 
Configurator. 
1. Mistake in wiring to controller. 
2. Mistake in setting of parameter 
No.PA14. 
Chapter 5 
 
 
 
Check the parameter No.PA14 
(rotation direction selection) 
setting.