Maintenance Reference(CP45FV) Eng.pdf - 第120页
Samsung Component Placer CP45FV Series Maintenance Guide Caution As this alarm may be detected during motor start or stop in cases where load i nertia is large or is used for applications on G-force axis, vel ocity contr…
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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Inspection of the Controller
Corrective measures
Cause Corrective measures
1
Position command frequency is too high,
or acceleration/deceleration time is too
short.
Review controller position
command.
2
Load inertia is too large or motor capacity
is too small.
Review load conditions, or
change to larger capacity motor.
3 Holding brake is not released
Check and correct wiring.
Replace servomotor if wiring is
correct (and voltage is
specified),
4
Motor is mechanically locked, or there is
mechanical interference
Review mechanics
5
Among one or all of the U, V, W phases
between amplifier and motor is
disconnected.
Check wrong wiring and correct
it.
6
At the stop timing (or complete
positioning), Motor was forced to rotate
caused by gravity or likely external force.
Review the load or replace with
larger capacity motor.
7
Current limit setting value is insufficient
in spite that this function command input
is active.
Set encoder pulse number does not
match motors.
A sufficient current limit value
should be set or let this
function void.
Correct the encoder pulse
number of the motor.
8
Improper servo parameter setting (position
loop gain, etc.)
Correct these parameters. (ex.
enlarging the position loop gain).
9 Excess deviation setting is too small. Set sufficient deviation value.
10 Faulty amplifier control board Replace servo amplifier.
11 Faulty servomotor encoder Replace servomotor.
12 Power supply voltage drop Review power supply voltage
Alarm Code D2H (Error of position command pulse frequency 1)
Operating state when alarm occurred
Possible causes
Operating state
1
After position command pulse input High
Corrective measures
Cause Corrective measures
1
Many command pulses are input beyond
digital filter setting value (frequency).
Decrease the frequency of
command pulses input.
Increase digital filter setting
frequency.
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