Inovance ISMG2-57D20CD-A3 F Series User Manual

5 Troubleshooting
5
- 47 -
Cause Conrming Methods Corrective Action
3. The regenerative
resistor fails.
If internal regenerative resistor is used
(H02-25 = 0), check whether
P
and D
are connected with a cable reliably. If
yes, measure resistance between C and
D.
If external regenerative resistor is used
(H02-25 = 1/2), measure resistance
between
P
and C.
For regenerative resistor specication,
refer to Chapter 1.
If resistance is ∞, wire breaking occurs.
If internal regenerative resistor is used and
resistance is 0, use external regenerative resistor
(H02-25 = 1/2) and remove cable between
P
and D. Select external regenerative resistor
of the same resistance and power as internal
regenerative resistor.
If external regenerative resistor is used, connect
a new regenerative resistor between
P
and C.
Make H02-26 (power of external regenerative
resistor) and H02-27 (resistance of external
regenerative resistor) consistent with external
regenerative resistor specication.
Resistance of
the regenerative
resistor is too
large, and energy
absorption
during braking is
insufcient.
Measure resistance of the external
regenerative resistor between
P
and C.
Compare the measured value with the
recommended value.
Connect a new external regenerative resistor of
recommended resistance between
P
and C.
Make H02-26 (power of external regenerative
resistor) and H02-27 (resistance of external
regenerative resistor) consistent with external
regenerative resistor specication.
Motor is in abrupt
acceleration/
deceleration status.
Maximum braking
energy exceeds
energy absorption
value.
Conrm acceleration/deceleration time
during running and measure DC bus
voltage between
P
and
-
. Check
whether voltage exceeds fault level
during deceleration.
First, ensure that input voltage of main circuit
is within specication. Then increase/decrease
acceleration/deceleration time in allowed range.
Bus voltage
sampling value has
a large deviation
from the measured
value
Check whether H0B-26 (bus voltage) is
within the following specication:
220 V drive: H0B-26 > 420 V
380 V drive: H0B-26 > 760V
Measure the DC bus voltage between
P
and
-
. Check whether the DC bus
voltage is normal and smaller than H0B-
26.
Contact Inovance for technical support.
7. The servo drive
is faulty.
The fault persists after main circuit is
powered on several times.
Replace the servo drive.

Inovance ISMG2-57D20CD-A3 F Series Specifications

General

Brand	Inovance
Model	ISMG2-57D20CD-A3 F Series
Category	Servo Drives
Language	English