Fastech Ezi-SPEED ESD-120-C, Manual

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10. Troubleshooting and remedial actions.
10.1 Alarm
If a protective function is activated and an alarm is generated, the motor will “E.STOP” and motor
shaft is free status. At the same time, the alarm code is displayed. The alarm type can be checked
by the alarm code.
Attention
• Cycle the power to reset the overcurrent and EEPROM(Electrically Erasable
Programmable Read-only Memory) error alarms. When cycling the power, turn
off power and wait for minimum 1 minute before doing so. If the product can
not operate properly after the power is cycled, the internal circuit may be
damaged. Contact your nearest sale office.
•
The motor stops instantaneously at the time of external stop(At.Et). After the
motor is stopped, the motor shaft is free status.
• Alarm list
Alarm
code
Alarm type Cause Remedial action
Alarm
reset
[AL.--]
Alarm
recode
delete
- -
-
[AL.UV.]
Under
voltage
The power supply voltage became
lower than approximately 60% of
the rated voltage
1. Check the power supply
voltage
2. Check the wiring of the po
wer supply cable
Possible
[AL.OV.]
Over
voltage
1. The power supply voltage
exceeded approximately 120% of
the rated voltage.
2. Vertical drive (gravitational oper
ation) was performed or a load ex
ceeding the permissible load inert
ia was driven.
1. Check the power supply
voltage
2. If this alarm occurs during
operation, reduce the load or
make the acceleration/deceler
ation time longer.
.
Possible
[AL.OT.] Overheat The temperature inside drive Review the ambient temperature. Possible