Sanyo Denki Q1AA04003D, Инструкция по эксплуатации

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8. Maintenance
[Trouble Shooting When Alarm Occurs]
8-14
Alarm code 91H (Encoder command abnormality)
Alarm code 92H (Encoder FORM error)
Alarm code 93H (Encoder SYNC Abnormality)
Alarm code 94H (Encoder CRC Abnormality)
When abnormalities are detected in the internal part of the absolute position detector for
the start-stop synchronization system.
Cause
Status during alarm
1 2 3
Issued when control power supply is turned ON.
(V) V V
Corrective actions
Cause Investigation and corrective actions
1 Defect in encoder Replace the servo motor.
2 Malfunction due to noise
Confirm proper grounding of the amplifier.
Check the shielding of the encoder cable.
Add ferrite core or similar countermeasures
against noise.
3 Abnormality in encoder wiring. Check wiring between the encoder and amplifier.
Alarm code A1H (Encoder Abnormality 1)
When abnormalities are detected in the internal part of the absolute position detector (RA062M) for the Manchester
encoding system.
Cause
Status during alarm
1
Issued when power supply is turned ON. V
Issued during operation. V
Corrective actions
Cause Investigation and corrective actions
1 Defect in internal circuit of encoder
Turn ON the power supply again; if not restored,
replace the motor.
“
Encoder clearing and alarm resetting methods” vary depending on the sensor/encoder in use.
Refer to page 49 “Materials; Encoder Clear”.
Alarm code A2H (Abnormality in absolute encoder battery)
Cause
Status during alarm
1 2
Issued when control power is turned ON. V V
Issued during operation. V
Corrective actions
Cause Investigation and corrective actions
1 Loose connection of battery cable.
Confirm the battery connection in the front
ON/OFF switch of the amplifier.
2 Low battery voltage Check the battery voltage.
“Encoder clearing and alarm resetting methods” vary depending on the sensor/encoder in use.
Refer to page 49 “Materials; Encoder Clear”.
Note) V means the cause number with high possibility.
(V) means the cause number with middle possibility.
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