Inovance IS810N-INT Series - Page 245

IS810N-INT Series Servo System User Manual (Brief)Chapter 7 Troubleshooting
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E1.733: Encoder multi-turn counting error
Cause:
Encoder multi-turn counting error
Probable Cause Conrming Method Corrective Action
The encoder is
faulty.
Set 200D-15h = 2 to remove the fault.
E1.733 persists after power-on again.
Replace the motor.
E1.735: Encoder multi-turn counting overow
Probable Cause Conrming Method Corrective Action
The absolute
encoder rotates
over 32767
revolutions in a
single direction in
linear mode.
View H0B70 and check whether
the encoder continues to run
in this direction after the value
reaches 32767.
View the operating instructions of the
absolute encoder.
1) This fault can be shielded in the
case that no multi-turn absolute
position but the running absolute
position needs to be recorded;
2) The rotation mode must be used in
the case that the single-turn absolute
position needs to be recorded.
E1.740: Encoder interference
Cause:
The encoder communication has been interrupted, resulting in an error in the communication
process.
Probable Cause Conrming Method Corrective Action
1. The encoder wiring
is incorrect.
Check the encoder wiring.
Reconnect cables according
to the correct wiring diagram.
2. Connection of
the encoder cable
becomes loose.
Check whether on-site vibration is
excessively intense, which loosens the
encoder cable or even damages the
encoder.
Re-connect the encoder
cable securely.
3. Interference on Z
signal of the encoder
exists.
Check on-site wirings:
Check whether large equipment is
generating interference on site and
whether there are interference sources
such as various variable-frequency
devices inside
Make servo drive in "rdy" status and
rotate the motor shaft counterclockwise
(CCW) manually, and observe whether
200B-12h (Electrical angle) increases/
decreases smoothly, and whether one
turn corresponds to ve 0 to 360°.
(This is for Z series motors. For X series
motors, the number should be 4.)
If 200B-12h changes abnormally during
rotation, it indicates that a fault occurs
on the encoder.
If there is no alarm during rotation but
the system alarms during servo running,
interference may exist.
Preferably use the cables
recommended by Inovance.
If a non-standard cable is
used, check whether the
cable meets the requirements
and is an STP cable.
Do not bundle motor cables
and encoder cables together.
Ensure the servo motor
and servo drive are well
grounded.
Check that the connectors at
both ends of the encoder are
in good contact.