IS810N-INT Series Servo System User Manual (Brief) Chapter 7 Troubleshooting
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E1.950: Positive limit switch warning
Cause:
The logic of the DI allocated with FunIN.14: P-OT (positive limit switch) is valid.
Probable Cause Conrming Method Corrective Action
The logic of the DI allocated
with FunIN.14: P-OT (forward
limit switch inhibited) is valid.
Check whether a DI is allocated
with FunIN.14 (P-OT) in group
2003h.
Check whether the DI logic is
valid in 200B-04h (monitored DI
states).
Check the running mode.
Ensure safety, and then
send a reverse reference or
rotate the motor to make the
logic of DI with the positive
limit switch function become
invalid.
E1.952: Negative limit switch warning
Cause:
The logic of the DI allocated with FunIN.15: N-OT (negative limit switch) is valid.
Probable Cause Conrming Method Corrective Action
The logic of the DI allocated
with FunIN.15: N-OT
(negative limit switch
inhibited) is valid.
Check whether a DI is allocated
with FunIN.15 (N-OT) in group
2003h.
Check whether the DI logic is
valid in 200B-04h (monitored DI
states).
Check the running mode.
Ensure safety, and then
send a reverse reference or
rotate the motor to make the
logic of DI with the negative
limit switch function become
invalid.
E1.980: Encoder internal fault
Cause:
An encoder algorithm error occurs.
Probable Cause Conrming Method Corrective Action
An encoder internal fault
occurs.
If the servo drive is powered
off and on several times but
the warning is still reported, it
indicates that the encoder is
faulty.
Replace the servo motor.
E1.998: Incorrect homing object dictionary
Cause:
Homing mode (6098h) sets an unsupported value.
Probable Cause Conrming Method Corrective Action
The value of object 6098h is
not supported.
Check the setting value of object
6098h.
Set parameters according to
the specications.
E1.E20: Ethernet hardware error
Cause:
Ethernet hardware fault
Probable Cause Conrming Method Corrective Action
Ethernet hardware error
If the servo drive is powered
off and on several times but
the warning is still reported, it
indicates that the Ethernet is
faulty.
Replace the servo drive.