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Code
Drive power undervoltage
(Amplifier display: N/A)
4842
The voltage of the power supplied to the servo
amplifier is insufficient.
No error codes
(Amplifier display: N/A)
4850
An unexpected error occurs on the servo
amplifier.
(An error which does not correspond to any of the
errors 4801 through 4849 has occurred.)
A440 Stack Table Up/Down Servo Motor Amplifier: 4900-4999
Overcurrent 1
(Amplifier display: oc1)
4901
The output current of the servo amplifier exceeds
the rated value. Direct detection by internal
transistor of servo amplifier
Overcurrent 2
(Amplifier display: oc2)
4902
The output current of the servo amplifier exceeds
the rated value. Indirect detection with software of
servo amplifier
Overspeed
(Amplifier display: oS)
4903
The rotation speed of the servo motor exceeds
1.1 times the maximum speed.
Control power undervoltage
(Amplifier display: Lvc)
4904
The power supplied to the servo amplifier falls
below the minimum specification voltage limit.
Overvoltage
(Amplifier display: Hv)
4905
The DC voltage inside the servo amplifier
exceeds the upper limit.
Encoder trouble 1
(Amplifier display: Et1)
4906
There is a fault in the encoder built in the servo
motor. (Single revolution position detection fault
of encoder)
SmartStacker User's Manual
Description and Causes
If an Error Code Is Displayed on SmartStacker
If this error occurs frequently, call your local
dealer.
If this error occurs frequently, call your local
dealer.
Solutions
297
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