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APPENDICES
APP
−
34
(2) Servo power supply module errors (2800 to 2999)
The servo power supply module errors are detected by the servo amplifier and
assigned error codes 2800 to 2999.
When any of the servo errors occurs, the servo error detection signal
(M2408+20n) turns ON. Eliminate the error cause and turn ON the servo error
reset (M3208+20n) to reset the servo error, and make a restart. (However, the
servo error detection signal will not turn ON for any of the error codes 2900 to
2999 as they are warning.)
(Note-1): For regenerative alarm protection (error code 2830), the status when
the protective circuit was activated is still retained in the servo
amplifier after activation. The data stored is cleared when the external
power is switched OFF, but is not cleared by the RESET signal.
(Note-2): If the external power is switched OFF repeatedly to reset the error
code 2830, overheat may lead to damage to the devices. Therefore,
resume operation after removing the cause without fail.
The servo power supply module error definitions are given in Table 2.13.
Table 2.13 Servo Power Supply Module Error (2800 to 2999) List
Error Cause
Error
Code
Name
Description
When Error Checked
Error
Processing
Corrective Action
•
The power supply voltage of the servo
power supply module fell below
170VAC.
•
Instantaneous power failure occurred.
•
Reconsider the power supply equipment.
2810
Undervoltage
•
Load is too large.
•
Reconsider the power supply capacity.
•
High-duty operation or continuous
regenerative operation caused the max.
load capacity of the regenerative brake
resistor to be exceeded.
•
Reconsider the operation pattern, e.g. decrease
the acceleration/deceleration frequencies or
reduce the speed.
•
Regenerative power transistor was
damaged.
•
Change the servo power supply module.
•
Regenerative brake resistor setting
mistake in system settings
•
Reconsider the system settings.
2830
Excessive
regeneration
•
Regenerative brake resistor wiring
mistake.
•
Correct the wiring.
•
Regenerative brake resistor connection
mistake.
•
Correct the wiring.
•
Regenerative power transistor was
damaged.
•
Change the servo power supply module.
•
Regenerative brake resistor is dead.
•
Change the regenerative brake resistor.
2833
Overvoltage
•
Power supply voltage is high.
•
Reconsider the power supply equipment.
•
The servo power supply module fan is at
a stop.
•
Change the fan.
•
The continuous output current of the
servo power supply module is exceeded.
•
Reduce the load.
2847
Amplifier power
supply overheat
•
Thermal sensor fault.
Immediate stop
•
Change the servo power supply module.
2940
Excessive
regeneration
warning
•
80% level of the excessive regeneration
error (2830) was detected.
At any time during operation
Operation
continues
•
Refer to details of the excessive regeneration
error (2830).