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(EHF) Power unit alarm
(EHF) Power unit alarm
Servo Controller 4830
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Answer
If you cannot solve this problem by checking possible causes, contact a Shimadzu sales or service representative.
1. Total Alarm: The power unit has been stopped by any alarm factor.
Cause1: The power unit has been stopped with the emergency stop switch.
Cause2: A failure that stops the power unit has occurred.
Cause2: A failure that stops the power unit has occurred.
2. Oil Temperature High: The hydraulic oil temperature is increased.
Cause1: No cooling water is flowing.
Cause2: A failure of the hydraulic oil cooler
Cause3: Deterioration of cooling tower capacity, or a failure of the cooling tower
Cause2: A failure of the hydraulic oil cooler
Cause3: Deterioration of cooling tower capacity, or a failure of the cooling tower
3. Oil Level Low: The oil level in the PU oil tank is decreased.
Cause: Oil leak from the hydraulic piping
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