JVL MIS17 Series User Manual page 173

7.2
7.2.13 Error message 'Encoder COM error'
Message no. / Message
Type / Motor action
Error condition
Possible cause of this error • A firmware update of either the SMC66/85 or the Absolute
Solutions to avoid error
How to return to normal
operation
Error bit / Firmware name
7.2.14 Error message 'External encoder'
Message no. / Message
Type / Motor action
Error condition
Possible cause of this error
Solutions to avoid error
How to return to normal
operation
Error bit / Firmware name
JVL Industri Elektronik A/S - User Manual - Integrated Stepper Motors MIS17x, 23x, 34x, 43x
Error messages
10 / 'Encoder COM error'
Unrecoverable error / Motor is set in Passive mode.
The internal communication to the Absolute multi turn en-
coder (H3/H4) does not work.
multi turn encoder (H3/H4) has gone wrong.
• Hardware error.
• This error should not occur during normal operation, but
can happen if something went wrong in a firmware update
process.
• If a new firmware update does not clear the error: Return
the motor for service.
• This error will only be set during startup and can be
cleared afterwards. Then the motor operation will be the
same, but the multi turn encoder will not work.
• Clear the error bit(s) in register 35.
Bit 10
11 / 'External encoder'
Unrecoverable error / Motor is set in Passive mode.
An external SSI encoder has been enabled but communi-
cation with the encoder has failed.
• The encoder is not connected correctly.
• The format chosen is not compatible with the actual en-
coder.
• Improper cabling have been used.
• Use proper cabling between the motor and the external
SSI encoder. A screened cable with twisted pair wires is
recommended.
• Make sure that the right SSI format is selected.
• Reset the motor, clear the error bit(s) in register 35 or cy-
cle the power.
Bit 11
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