Maintenance Reference(CP45FV) Eng.pdf - 第118页

Samsung Component Placer CP45FV Series Maintenance Guide Corrective measures Cause Corrective measures 1 Faulty encoder internal circuit Replace servomotor. 2 Malfunction due to noise   Check if amplifier earth ca ble …

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Inspection of the Controller
Alarm Code A4H (Overflow of absolute encoder revolution）
This is an error detected inside ABS．E.
Operating state when alarm occurred
Possible causes
Operating state
1
When control power supply is turned on Low
During motor operation High
Corrective measures
Cause Corrective measures
1
Multi-revolution counter inside the
encoder overflows.
Encoder clear
Alarm Code B2H (Encoder error 2)
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 High
During operation Low High
Corrective measures
Cause Corrective measures
1 Faulty encoder internal circuit Replace servomotor.
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.
Alarm Code B3H (Revolution counter error of absolute encoder)
Alarm Code B4H (One-revolution counter error of absolute encoder)
Alarm Code B6H (Encoder memory error)
This is an error detected inside of absolute position detector in start-stop synchronization
Operating state when alarm occurred
Possible causes
Operating state
1
When control power supply is turned on High
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Samsung Component Placer CP45FV Series Maintenance Guide
Corrective measures
Cause Corrective measures
1 Faulty encoder internal circuit Replace servomotor.
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.
Alarm Code B5H (Over-allowable speed of absolute encoder at turning ON)
This is an error detected inside of absolute position detector in start-stop synchronization.
Operating state when alarm occurred
Possible causes
Operating state
1 2
During motor stoppage High High
During motor operation Low High
Corrective measures
Cause Corrective measures
1 Faulty encoder internal circuit Replace servomotor.
2 Malfunction due to noise
Check if amplifier earth cable should be
correctly grounded.
Check the shielding procedure of
encoder cable.
Add ferrite core as a countermeasure
against noise.
Alarm Code C1H (Over-speed)
Operating state when alarm occurred
Possible causes
Operating state
1 2 3 4 5
When control power supply is turned on H L
Upon command input after Servo ON
L H
H
When motor is started
H H
During operation (except when motor starting)
H H
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Inspection of the Controller
Corrective measures
Cause Corrective measures
1 Faulty amplifier control board Replace servo amplifier.
2 Faulty servomotor sensor Replace servomotor
3
Overshoot is too large during
motor start.
Use the analog monitor of the remote
controller to check the velocity. → If over
shoot is too large, adjust the servo
parameter → Change the
acceleration/deceleration speed pattern
command → Reducing the load inertia.
4
Incorrect wiring for U, V, W
phases between amplifier and
motor
Check wrong wiring and correct it.
Alarm Code C2H (Velocity control error)
Operating state when alarm occurred
Possible causes
Operating state
1 2 3 4 5
When control power supply is turned on
H
Upon servo ON input H
H
Upon command input H H H
When motor is started or stopped
H
Corrective measures
Cause
Corrective measures
1
Incorrect wiring for U, V, W
phases between amplifier and
motor
Check wrong wiring and correct it.
2
Incorrect wiring for A, B phases
between INC-E and ABS-E
encoder connection
Check wrong wiring and correct it.
3 Motor is vibrating ( or oscillating)
Adjust servo parameter to stop the
vibration ( or the oscillation).
4
Overshoot and/or undershoot is
too large
Use the analog monitor of the remote
controller to check the velocity
Adjust servo parameter to reduce
overshoot and/or undershoot.
Increase acceleration/deceleration
command time.
Mask the alarm.
5
Faulty servo amplifier control
circuit
Replace servo amplifier.
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