User guide

Page 39
ServoTube 25/38 module User Guide
Appendices
Appendix B
Troubleshooting
TROUBLESHOOTING CHART
Check to see if the problem you are experiencing is listed in the chart below. If the problem cannot be solved with
reference to this chart, contact the customer services department.
Fault Possible cause Action
Forcer fails to move and
produces no force.
1. Drive not powered.
2. Forcer phase connections not made.
3. Forcer over-temperature sensor not
connected.
4. Forcer over-temperature.
1. Apply power to drive.
2. Check forcer phase connections on drive.
3. Check forcer over-temperature sensor
connections on drive.
4. Allow forcer to cool.
Forcer fails to move but does
produce force.
1. One or more forcer phase connections
not made or made incorrectly.
2. One or more position sensor connections
not made or made incorrectly.
3. Forcer/thrust rod mechanically blocked.
1. Check forcer phase connections on drive.
2. Check position sensor connections on drive.
3. Check forcer/thrust rod is free to move.
Forcer moves but is jerky in
motion.
Incorrect pole pitch set up or phase offset
between position sensor and forcer back
emf.
Check drive or controller set up.
Forcer moves in wrong
direction.
One or more position sensor and forcer
phase connections made incorrectly.
Check position sensor and forcer phase
connections on drive.