NORD Drivesystems BU0210 - Manual (Page 50)

SK 2x5E with "PosiCon Functionality"
50 Subject to technical amendments BU 0210 GB
Display in the
ControlBox Fault
text in the ParameterBox
Cause
 Remedy
E013 / E14.5 Pos. diff. <> Speed
Change of position and speed do not match
 Check the position detection and the control
setting in P630
E013 / E14.6 Diff. between Abs. and Inc. Difference between absolute and incremental
encoders
 Check the position detection and the control
setting in P631
 Position change for the absolute and incremental
encoders do not match
E013 / E14.7 Max. Pos. Exceeded Maximum position exceeded
 Check the specified setpoint and the control
setting in P615
E013 / E14.8 Mon. Pos. Undershot Minimum position undershot
 Check the specified setpoint and the control
setting in P616
7.2 Troubleshooting table
The following table contains the most frequent sources of faults and the associated symptoms. It is
recommended that the same sequence as for commissioning is used for troubleshooting. I.e. first check if the
axis runs without control and then test the speed and position controls.
7.2.1 Sources of faults in servo mode operation (without position control)
Symptom Additional test Possible cause
Motor only runs slowly,
motor vibrates Change sign in P301  incorrect assignment of motor direction
to the incremental encoder direction
 Incorrect incremental encoder type
 Encoder
cable interrupted
 Encoder voltage supply missing
 Incorrect pulse number parameterised
 Incorrect motor parameters
 Encoder track missing
Motor rotates correctly, but
vibrates at low speeds
Switch-off of overcurrent at
higher speeds Problem disappears when the
servo mode is switched off  Incremental encoder incorrectly
mounted
 Interference in encoder signals
Overcurrent switch-off when
braking Motor in field weakening
operation  For field weakening operation in servo
mode, the torque limit must not exceed
200%