JVL MAC050 - Page 42

38 JVL A/S - User Manual - Integrated Servo Motors MAC050 - 4500
2.7 Error messages and error handling
2.7.4 Error message ’Follow error’
2.7.5 Error message ’Function error’
Message no. / Message
2 / ’Follow error’
Type / Motor action Unrecoverable error / Motor is set in passive mode.
Error condition The actual difference between the actual motor position and
the intended position is higher than the value specified in the
’Maximum follow error’ field in MacTalk.
Possible cause of this error The motor has been applied too high a load or the ’maximum
follow error’ value have been set at an unrealistic low value in
regards to the actual hardness of the servo filter.
Solutions to avoid error - Increase the ’’Maximum follow error’ value.
- Adjust the servo filter hardness to a more aggressive value.
- Make sure that the torque setting is not limiting the motor
movement.
- Set the ’Maximum follow error’ to 0 (default) which will dis-
able the detection of this error type.
How to return to normal
operation
- Reset the motor, clear the error bit(s) in register 35 or cycle
the power.
Error bit / Firmware name Bit 1/ ’FLW_ERR’
Message no. / Message
3 / ’Function error’
Type / Motor action Unrecoverable error / Motor is set in passive mode.
Error condition If the actual load torque of the motor gets higher than the
specified torque setting permits it will cause the motor to slip
away from where it is supposed to be. If the number of motor
counts missing in this situation gets higher than the value spec
-
ified in the ’Maximum function error’ field in MacTalk it will
trigger the ’function error’. If the actual motor torque never
reaches the value specified in the ’torque’ field this error will
never be triggered.
The above condition is valid when the motor is operated in Po-
sition mode, Bi-position mode, or Analogue to position mode.
Possible cause of this error The motor has been applied too high a load or the ’maximum
function error’ value have been set at an unrealistic low value
in regards to the ’torque’ setting.
Solutions to avoid error - Increase the ’Maximum follow error’ value.
- Adjust the servo filter hardness to a more aggressive value.
- Make sure that the torque setting is not limiting the motor
movement.
- Set the ’Maximum function error’ to 0 (default) which will
disable the detection of this error type.
How to return to normal
operation
- Reset the motor, clear the error bit(s) in register 35 or cycle
the power.
Error bit / Firmware name Bit 2 / ’FNC_ERR’