1-11
Error no. H0750 *
1Error list
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 Servo amplifier under voltage
Cause The PN bus voltage dropped to 200V or less. Momentary power failure may have occurred.
Measures Check the primary voltage.
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.
H0820 *
H082n *
(n indicates the
axis number (1
to 8).)
Error message Motor ground fault
Cause A motor ground fault was detected. A connection or conductance error may have occurred in the motor
cable.
Measures Turn the power OFF and ON once. Check connection and continuity of motor cable.
H083n *
(n indicates the
axis number (1
to 8).)
Error message Servo amplifier overvoltage
Cause The PN bus voltage rose to 400V or more.
Measures Check the primary power supply voltage. Turn the power OFF and ON once.
H0840 * Error message Instantaneous power failure (SRV)
Cause A power shutdown status of 50 msec or longer has occurred.
Measures Check the power voltage. Turn the power OFF and ON once.
H0850 * Error message Power supply voltage incorrect
Cause The input power (L1, L2, L3) has an open phase, the voltage is not within the specifications, or the 100V/
200V specifications changeover setting is incorrect.
Measures Check the power connection, power state or the setting.
H0860 Error message Power supply overvoltage
Cause The voltage across the converter's L+ and L- exceeded 410V.
Measures Check the power supply connection and power supply state.
H087n *
(n indicates the
axis number (1
to 8).)
Error message Encoder thermal error
Cause The built-in thermal protector of the serial pulse encoder has been activated.
Measures Turn the controller power OFF, wait a while, and then turn ON again. If it comes back, contact your service
provider.
Error No. Error cause and measures
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