Maintenance Reference(CP45FV) Eng.pdf - 第119页

Inspection of the Contr oller 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 st…

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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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Samsung Component Placer CP45FV Series Maintenance Guide
Caution
As this alarm may be detected during motor start or stop
in cases where load inertia is large or is used for
applications on G-force axis, velocity control error alarm
should be set to “not detecting” at shipment.
When “detecting” is necessary, consult us.
Alarm Code C3H (Velocity feedback error)
Operating state when alarm occurred
Possible
causes
Operating state
1 2
After command input High Low
Corrective measures
Cause Corrective measures
1 Motor does not rotate.
Check motor power line or connect it
correctly.
2 Faulty servo amplifier internal circuit Replace servo amplifier
Alarm Code D1H (Following error)
Operating state when alarm occurred
Possible causes
Operating state
1 2 3 4 5 6 7 8 9 10 11 12
When control power
supply is turned on
H
During stoppage at servo
ON
H
H
When command input is
started
H L H H H
H L H
L
During high speed start or
stoppage
H H
H H H
L H
During operation with a
long command
H
H L
L
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