5 Troubleshooting
5
- 45 -
Er.208: FPGA system sampling operation timeout
Cause
Confirming Methods
Corrective Action
1. MCU communication
times out.
Internal fault code H0B-45 = 1208.
Internal chip is damaged.
Replace the servo drive.
2. Communication with
encoder times out.
Internal fault code H0B-45 = 2208.
Encoder wiring is incorrect.
Encoder cable becomes loose.
Encoder cable is too long.
Communication with encoder is
interrupted.
The encoder is faulty.
Use encoder cable that is configured as
standard by Inovance. If not, check whether
encoder cable comply with specification and
whether it is shielded twisted pair cable.
Check whether plugs at both ends of encoder
are in good contact and whether any pin
retracts.
Contact the manufacturer.
Do not bundle motor cables and encoder
cables together. Ensure servo motor and
servo drive are well grounded.
Replace servo motor.
3. Current sampling
times out.
Internal fault code H0B-45 = 3208.
Check whether there is large equipment
generating interference on site and
whether there are multiple interference
sources in the cabinet.
Internal current sampling chip is
damaged.
Separate heavy current from light current and
do not bundle them together.
Replace the servo drive.
4. High-accuracy AD
conversion times out.
Internal fault code H0B-45 = 4208.
Interference exists in high-accuracy AI
channel. Check AI wiring according to
correct wiring diagram.
Use shielded twisted pair cable and shorten
cable length.
5. FPGA operation
times out.
Internal fault code H0B-45 = 0208.
Remove the cause according to
preceding 1/2/3/4.
Perform corrective action according to
preceding 1/2/3/4.
Er.210: Output short-circuit to ground
Cause
Confirming Methods
Corrective Action
1. Power output cables
(UVW) of servo drive are
short-circuited to ground.
Disconnect UVW cables from motor, and measure
whether motor UVW cables are short-circuited to ground.
Re-connect these
cables or replace
them.
2. Motor is short-circuited to
ground.
After ensuring power cables of servo drive and motor
cables are connected securely, measure insulation
resistance between UVW of servo drive and ground cable
(PE) and check whether insulation resistance is MΩ-level.
Replace servo motor.
3. Servo drive faulty.
Remove power cables from servo drive. The fault persists
after the drive is powered on several times.
Replace the servo
drive.
Er.220: Phase sequence incorrect
Cause
Confirming Methods
Corrective Action
1. The UVW phase sequence of the
drive is inconsistent with that of the
motor.
Carry out power-off and power-on for
several times, and Er.220 persists after
auto-tuning.
Perform the wiring again and
then angle auto-tuning.
Summary of Contents for IS650P Series
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