ABB NextMove e100 User Manual

MN1941WEN Troubleshooting 6-5
Motor runs uncontrollably when controller is switched on and servo loop gains are
applied or when a move is set in progress. Motor then stops after a short time:
 (Local servo outputs only) Check that the encoder feedback signal(s) are connected to
the correct encoder input(s). Check the demand to the drive is connected with the correct
polarity.
 Check that for a positive demand signal, a positive increase in axis position is seen. The
ENCODERMODE keyword can be used to change encoder input direction. The DACMODE
keyword can be used to reverse DAC output polarity.
 Check that the maximum following error is set to a reasonable value. For configuration
purposes, following error detection may be disabled by setting FOLERRORMODE=0.
Motor is under control, but vibrates or overshoots during a move.
 (Local servo outputs only) Servo loop gains may be set incorrectly. See sections 5.6.2 to
5.9.
Motor is under control, but when moved to a position and then back to the start it does
not return to the same position:
 Verify that the NextMove e100 and drive are correctly grounded to a common ground
point.
 (Local servo outputs only) Check:
- all encoder channels are free from electrical noise;
- they are correctly wired to the controller;
- when the motor turns, the two square wave signals are approximately 90 degrees out
of phase. Also check the complement signals.
 Ensure that the encoder cable uses shielded twisted pair cable, with the outer shield
connected at both ends and the inner shields connected only at the NextMove e100 end.
 (Local stepper outputs only) The motor is not maintaining synchronization with the
NextMove e100 drive output signals due to excessive acceleration, speed or load
demands on the motor.
 Check that the acceleration, speed and load are within the capabilities of the motor.
6.2.6 Mint WorkBench
The Spy window does not update:
 The system refresh has been disabled. Go to the Tools, Options menu item, select the
System tab and then choose a System Refresh Rate (500 ms is recommended).
Firmware download fails:
 Confirm that you have the correct version of firmware. Obtain the latest version of
firmware from www.abbmotion.com.
Cannot communicate with the controller after downloading firmware:
 After firmware download, always power cycle the controller (remove 24 V power and
then reconnect).
Mint WorkBench loses contact with NextMove e100 while connected using USB:
 Check that the NextMove e100 is powered.
 Check that a ‘USB Motion Controller’ device is listed in Windows Device Manager. If not,
there could be a problem with the PC’s USB interface.

ABB NextMove e100 Specifications

General

Brand	ABB
Model	NextMove e100
Category	Controller
Language	English