1-13
Error no. H0730 *
1Error list
H0730 * Error message Power supply rush relay fusing
Cause The rush resistance short-circuit relay did not turn OFF.
Measures Turn the power OFF and ON once. If it comes back, contact your service provider.
H0740 * Error message Power supply main circuit error
Cause The charge operation of the main circuit capacitor is not normal.
Connection of the external emergency stop has the mistake.
Measures 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
H0742 Error message Power supply main circuit error
Cause A main circuit voltage has decreased because of a failure of the Safety relay on a converter card.
Measures 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.
H0743 * Error message Power supply main circuit error3.
Cause A main circuit voltage has decreased because of contactor fail.
Measures 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.
H0750 * Error message Power supply memory error
Cause An error in the memory circuit of converter or AD converter was detected.
Measures Turn the power OFF and ON once. If it comes back, contact your service provider.
H0760 * Error message Power supply error
Cause An error was detected in the data comm. with the power supply
Measures Turn the power OFF and ON once
H0770 * Error message Power supply process error
Cause An error occurred in the process cycle of power supply
Measures Turn the power OFF and ON once. Check that there is not a source of noise. If it comes back, contact your
service provider.
H078n *
(n indicates the
axis number (1
to 8).)
Error message Servo amplifier watch dog
Cause The servo amplifier software process is not operating correctly.
Measures Turn the power OFF and ON once. If it comes back, contact your service provider.
H079n *
(n indicates the
axis number (1
to 8).)
Error message Servo amplifier board error
Cause An error was detected in the servo amplifier's PCB.
Measures Turn the power OFF and ON once. If it comes back, contact your service provider.
H080n *
(n indicates the
axis number (1
to 8).)
Error message Servo amplifier clock error
Cause An error was detected in the servo amplifier's clock.
Measures Turn the power OFF and ON once. If it comes back, contact your service provider.
H081n *
(n indicates the
axis number (1
to 8).)
One of the errors below is detected.
Please take measures corresponding to an error message.
Error message Power supply undervoltage
Cause Insufficient bus voltage was detected in main circuit. An instantaneous power failure may have occurred.
Measures Check the wiring and condition of the power supply.
Error message Voltage error at accel/decel
Cause A motor control error was detected due to an input voltage drop
Measures 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 No. Error cause and measures
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