Inovance SV820N Series - Page 100

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5 Troubleshooting
5
E3.208: FPGA sampling operation timeout
Cause:
Find th e cause through the internal fault code (200B-2Eh) when E3.208 occurs.
Probable Cause ConrmingMethod Corrective Action
1. Communication
with the encoder
times out.
Internal fault code 200B-2Eh=2208
Encoder wiring is incorrect.
Connection of the encoder cable
becomes loose.
The encoder cable is too long.
Communication interference exists.
The encoder is faulty.
Use the recommended encoder cable. If a non-
standardcableisused,checkthatitcomplieswith
thespecicationsandisashieldedtwistedpair
cable.
Checkwhethertheconnectorsatbothendsofthe
encoder are in good contact.
Contact the manufacturer.
Do not bundle motor cables and encoder cables
together. Ensure the servo motor and servo drive
are well grounded.
Replace the servo motor.
2. Current sampling
times out.
Internalfaultcode200B-2Eh=3208:
Checkwhetherthereislarge
equipment generating interference on-
site and whether there are interference
sources such as various variable-
frequency devices inside the cabinet.
The internal current sampling chip is
damaged.
Separate the heavy current from the light current.
Replace the servo drive.
3. FPGA operation
times out.
Internalfaultcode200B-2Eh=0208:
Determine causes 1/2/3/4.
Remove the preceding causes 1/2/3/4.
■ E3.210: Output to-ground short-circuit
Cause:
Theservodrivedetectsmotorphasecurrentorbusvoltageabnormalduringself-checkatpower-on.
Probable Cause ConrmingMethod Corrective Action
1. The servo drive power
cables (UVW) are short-
circuited to ground.
Disconnect the motor cables, and measure whether the
servo drive power cables (UVW) are short-circuited to
ground (PE).
Re-connect these cables
or replace them.
2. The motor is short-
circuited to ground.
After ensuring the servo drive power cables and motor
cables are connected securely, measure whether the
insulation resistance between the servo drive UVW
cablesandgroundcable(PE)isMΩ-level.
Replace the motor.
3. The servo drive is faulty.
Remove the power cables from the servo drive. The fault
persists after the drive is powered off and on for several
times.
Replace the servo drive.
■ E3.220: UVW phase sequence incorrect
Cause:
Incorrect UVW phase sequence is detected during angle auto-tuning.
Probable Cause ConrmingMethod Corrective Action
1. Power cable sequences
are incorrect.
Checkwhetherpowercablesequenceare
correct.
Change any two phase sequences for
angle auto-tuning again.