Mitsubishi CR800 Series Instruction Manual page 22

1Error list
Error No.
H0730 * Error message Power supply rush relay fusing
Cause
Measures
H0740 * Error message Power supply main circuit error
Cause
Measures
H0742 Error message Power supply main circuit error
Cause
Measures
H0743 * Error message Power supply main circuit error3.
Cause
Measures
H0750 * Error message Power supply memory error
Cause
Measures
H0760 * Error message Power supply error
Cause
Measures
H0770 * Error message Power supply process error
Cause
Measures
H078n * Error message Servo amplifier watch dog
(n indicates the
Cause
axis number (1
to 8).) Measures
H079n * Error message Servo amplifier board error
(n indicates the
Cause
axis number (1
to 8).) Measures
H080n * Error message Servo amplifier clock error
(n indicates the
Cause
axis number (1
Measures
to 8).)
H081n * One of the errors below is detected.
(n indicates the Please take measures corresponding to an error message.
axis number (1
Error message Power supply undervoltage
to 8).)
Cause
Measures
Error message Voltage error at accel/decel
Cause
Measures
1-13
Error no. H0730 *
The rush resistance short-circuit relay did not turn OFF.
Turn the power OFF and ON once. If it comes back, contact your service provider.
The charge operation of the main circuit capacitor is not normal.
Connection of the external emergency stop has the mistake.
Turn the power OFF and ON once.
Confirm that the power supply voltage is in the specification value and the connection of the external
emergency stop is correct.
If it comes back, confirm the time of occurrence of this error being "servo ON/OFF", or being "power sup -
ply OFF/ON", and contact your service provider
A main circuit voltage has decreased because of a failure of the Safety relay on a converter card.
Turn the power OFF and ON once.
Confirm whether there is any problem in wiring of the external emergency stop switch.
Refer to the "Examples of safety measures" given in separate "Standard Specifications Manual" for exter -
nal emergency stop switch wiring.
If it comes back, contact to your service provider.
A main circuit voltage has decreased because of contactor fail.
Turns off the power once and turns on on the power supply again. Confirm power supply voltage and the
connection of the external emergency stop. When it comes back, contact to the dealer.
An error in the memory circuit of converter or AD converter was detected.
Turn the power OFF and ON once. If it comes back, contact your service provider.
An error was detected in the data comm. with the power supply
Turn the power OFF and ON once
An error occurred in the process cycle of power supply
Turn the power OFF and ON once. Check that there is not a source of noise. If it comes back, contact your
service provider.
The servo amplifier software process is not operating correctly.
Turn the power OFF and ON once. If it comes back, contact your service provider.
An error was detected in the servo amplifier's PCB.
Turn the power OFF and ON once. If it comes back, contact your service provider.
An error was detected in the servo amplifier's clock.
Turn the power OFF and ON once. If it comes back, contact your service provider.
Insufficient bus voltage was detected in main circuit. An instantaneous power failure may have occurred.
Check the wiring and condition of the power supply.
A motor control error was detected due to an input voltage drop
Turn the power OFF and ON once. Check the primary voltage.
This error may have been triggered by the following errors. If this is the case, follow the solutions to each
error.
H0216: Current sensor failure
H221n: STR (ROBOT torque error 2)
Error cause and measures