Inovance IS810N-INT Series - Page 240

IS810N-INT Series Servo System User Manual (Brief) Chapter 7 Troubleshooting
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Probable Cause Conrming Method Corrective Action
1. The main
circuit input
voltage is too
high.
Check whether the voltage on the
power supply side is within the following
specications:
380 V drive:
Effective value: 380 to 440 V
Allowed error: -10% to 10%
(342 to 484 V)
Replace or adjust the power
supply according to the
specications.
2. The power
supply is instable
or affected by
lightning.
Check whether the power supply is
unstable or affected by lightning, or
whether it satises the preceding
specications.
Connect a surge suppressor and
then the power supply. If the fault
persists, replace the servo drive.
5. The motor
is in abrupt
acceleration/
deceleration
status. The
maximum
braking energy
exceeds
the energy
absorption value.
Conrm the acceleration/deceleration
time during running and measure the
DC bus voltage between P and C to
check whether the voltage exceeds the
fault threshold during deceleration.
Ensure that the input voltage
of main circuit is within the
specications. Then increase the
acceleration/deceleration time
within the allowed range.
6. The bus
voltage sampling
value has a
large deviation
from the actually
measured value.
Check whether 200B-1Bh (Bus voltage)
is within the following specications:
220V drive: 200B-1Bh > 420 V
Measure the DC bus voltage between
and and check whether the DC bus
voltage is normal and smaller than
200B-1Bh.
Contact Inovance for technical
support.
7. The servo
drive is faulty.
The fault persists after the main circuit
is powered off and on several times.
Replace the servo drive.
E1.410: Main circuit undervoltage
Cause:
The DC bus voltage is lower than the overvoltage threshold.
380 V drive: normal value: 540 V, overvoltage threshold: 350 V
Probable Cause Conrming Method Corrective Action
1. The control
power supply
is unstable or
power failure
occurs.
Check whether the voltage on the power supply side is
within the following specications:
220 V drive:
380 V drive:
Effective value: 380 to 440 V
Allowed error: -10% to 10% (342 to 484 V). Measurement
is required for three phases.
Improve the
power capacity.
2. Instantaneous
power failure
occurs.
3. The power
voltage drops
during running.
Check the input voltage on the power supply side and
check whether main power is applied to other devices,
resulting in insufcient power capacity and a voltage dip.