49
YO20-0938-DI-001-00
Indication
Alarm Name
Status
CPF**
(CPF**)
Faulty control circuit
An error occurred in the inverters
hardware.
Cause
Measures
Reference
Transmission noise is propagated
from the wiring for remote control.
Use shielded cables for remote control wiring.
➡
Securely establish a ground.
Controller wiring failure
Contact to ULVAC service center.
End of
Document
Indication
Alarm Name
Status
EF3
(EF3)
External abnormality
signal being input
An external abnormality signal has been input in
the remote control wiring.
Cause
Measures
Reference
An external abnormal signal has
been input.
Check the contact conditions of external devices.
➡
Release the contact for the external device.
3.6.2
6.3 How to
restart the pump after an alarm
■
Resetting an alarm
If the controller displays an alarm, restart the pump after eliminating the cause of the alarm. Upon
restarting the pump, reset the alarm using any of the following methods.
Procedure after an alarm occurs
How to reset the alarm
After eliminating the cause of the alarm,
reset the alarm and then restart the pump.
Press the controller's RESET key while the alarm content is
displayed on the controller.
*
After eliminating the cause of the alarm, turn
on the alarm reset signal from the signal
connector.
Short circuit the alarm reset signal pin of the remote control
wiring.
Turn the power on again.
Turn the primary side power off. Turn it on again after the
controller display turns off.
Содержание MS120A
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