Maintenance Reference(CP45FV) Eng.pdf - 第115页

Inspection of the Contr oller 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…

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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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Samsung Component Placer CP45FV Series Maintenance Guide
Alarm Code A2H (Error of absolute encoder battery)
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
When control power supply is turned on High High
During operation
High
Corrective measures
Cause Corrective measures
1 Poor battery cable contact
Check the battery connector in the
amplifier front.
2 Battery voltage drop Check the battery voltage.
Alarm Code A3H (Encoder overheat)
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
During motor stoppage Low High
During motor operation
High High
Corrective measures
Cause Corrective measures
1 Faulty encoder internal circuit Replace servo motor
2
Though motor itself does not
overheat, ambient temperature of
sensor is too high.
Review the cooling method and keep
the encoder ambient temperature
below
3 Motor overheat
Review the cooling method of
servomotor.
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