Maintenance Reference(CP45FV) Eng.pdf - 第114页
Samsung Component Placer CP45FV Series Maintenance Guide Alarm Code 85H (Encoder initial process error) Operating state when alarm occurred Possible causes Operating state 2 3 4 High High High Cause Corrective measures…
Inspection of the Controller
Corrective measures
Cause Corrective measures
1 Faulty amplifier internal circuit
2 Faulty external circuit
Take out the connector and turn ON
again. Without an alarm, check
external circuit.
Alarm Code 81H (pulse signal error of A and B phases 1)
Alarm Code 82H (Absolute encoder signal disconnection)
Alarm Code 83H (Signal error of A and B phases in the external encoder)
Alarm Code 84H (Communication error between encoder and amplifier)
Possible causes
Operating state
2 3 4 5 6
High High High High
After servo ON is input
High
High
High
Corrective measures
Cause Corrective measures
Encoder wiring:
Incorrect wiring
Loose connector
Poor connector contact
Encoder cable is too long
Check if encoder power voltage of
motor is over 4.75V. Correct when
the voltage is below it.
2
3
Setting of encoder classification
differs from that of actual motor
encoder.
Replace with servomotor attached with
correct encoder.
Faulty amplifier control circuit Replace servo amplifier.
5 Faulty servomotor encoder
6
Parameter setting is for full close
servo system.
Set parameters for semi-close system.
Replace servo amplifier.
Replace motor and turn ON. Without
an alarm check encoder internal
circuit.
Alarm Code 87H (CS disconnection)
Operating state when alarm occurred
1
When control power supply is
turned on
High
High
High
During operation Low
Check wrong wiring and correct it.
1
Encoder cable is too thin
Correct setting.
Wrong setting of amplifier encoder
classification
4
Replace servomotor.
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Samsung Component Placer CP45FV Series Maintenance Guide
Alarm Code 85H (Encoder initial process error)
Operating state when alarm occurred
Possible causes
Operating state
2 3 4
High High High
Cause Corrective measures
Incorrect wiring
Loose connector
Poor connector contact
Encoder cable is too long
Encoder cable is too thin
2
Wrong encoder classification sett
ing of amplifier
3 Faulty amplifier control circuit Replace servo amplifier.
Replace servomotor.
Possible
causes
High
Corrective measures
1 During motor operation
Check if amplifier earth cable should be
correctly grounded.
Alarm Code 91H (Encoder command error)
1
When control power supply is turned on High
Corrective measures
Encoder wiring:
Check wrong wiring and correct it.
Check if encoder power voltage of
motor is over 4.75V. Correct if
necessary.
1
Correct setting.
4 Faulty servomotor encoder
Alarm Code 86H (CS error)
Operating state when alarm occurred
Operating state
1
During motor operation
Corrective measures
Cause
Check shielding procedure of encoder cable.
Add ferrite core as a countermeasure against
noise.
Alarm Code 92H (Encoder FORM error)
Alarm Code 93H (Encoder SYNC error)
Alarm Code 94H (Encoder CRC error)
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Inspection of the Controller
Alarm Code 95H (Encoder BUSY error)
This is an error detected at receiving section of absolute position detector in start-stop
synchronization.
Operating state when alarm occurred
Possible causes
Operating state
1 2 3
When control power supply is turned on Low High High
Corrective measures
Cause Corrective measures
1 Faulty encoder
Replace servo motor
2 Malfunction due to noise
Check if amplifier earth cable should
be correctly grounded. Check shielding
procedure of encoder cable. Add ferrite
core as a countermeasure against
noise.
3 Incorrect encoder wiring
Review the wiring between encoder
and amplifier
Alarm Code A1H (Encoder error 1)
This is an error detected inside absolute position detector in Manchester.
Operating state when alarm occurred
Possible causes
Operating state
1 2
When control power supply is turned on High
During operation
High
High
Corrective measures
Cause Corrective measures
1 Poor contact of battery cable
Check the battery connector in the
amplifier front.
2 Battery voltage drop Check the battery voltage.
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