11 - 11
11. TROUBLESHOOTING
Display Name
Definition
Cause
Action
(Note 2)
Alarm
detailed
information
A33 Overvoltage Bus
voltage
exceeded to
following voltage.
200V class and
100V class:
400VDC
400V class:
800VDC
1. Regenerative option is not used.
Use a regenerative option.
2. Though the regenerative option is
used, the parameter No.PA02 setting
is " 00 (not used)".
Set correctly.
3. Lead of built-in regenerative resistor
or regenerative option is open or
disconnected.
1. Change the lead.
2. Connect correctly.
4. Wire breakage of built-in
regenerative resistor or regenerative
option.
1. For built-in regenerative
resistor, change the
servo amplifier.
2. For regenerative option,
change the regenerative
option.
5. Capacity of built-in regenerative
resistor or regenerative option is
insufficient.
Add regenerative option or
increase capacity.
6. The jumper across BUE-SD of the
FR-BU2 brake unit is removed.
Fit the jumper across BUE-
SD.
7. Impedance in the power supply line
is high, and leak current from the
servo motor power lines is large.
Use a regenerative option.
(Product without built-in
regenerative resistor)
8. Ground fault occurred in the servo
motor power output (U, V, W ).
Correct the wiring.
9. High power supply voltage
Check the power supply.
10. Servo amplifier fault. (Regenerative
transistor fault.)
Change the servo
amplifier.
A35 Command
pulse
frequency error
Input pulse
frequency of the
manual pulse
generator is too
high.
1. Pulse frequency of the manual pulse
generator is too high.
Lower the pulse frequency
value.
2. Noise entered the pulses of the
manual pulse generator.
Take action against noise.
3. Manual pulse generator fault.
Change the manual pulse
generator.
Summary of Contents for Melservo-J3 Series MR-J3-B
Page 19: ...10 MEMO ...
Page 55: ...1 36 1 FUNCTIONS AND CONFIGURATION MEMO ...
Page 61: ...2 6 2 INSTALLATION MEMO ...
Page 179: ...4 58 4 SIGNALS AND WIRING MEMO ...
Page 241: ...5 62 5 OPERATION MEMO ...
Page 357: ...10 16 10 SPECIAL ADJUSTMENT FUNCTIONS MEMO ...
Page 385: ...11 28 11 TROUBLESHOOTING MEMO ...
Page 397: ...12 12 12 OUTLINE DRAWINGS MEMO ...
Page 755: ...17 70 17 SPEED CONTROL OPERATION MEMO ...
Page 793: ...App 38 APPENDIX MEMO ...
Page 799: ...MEMO ...