User Manual EA4709 / EA4718
ElectroCraft
®
E-Mail: [email protected] www.electrocraft.com May 2009
35
8. Basic
Troubleshooting
The servo amplifier has included some different protective functions. Over voltage, over
temperature, hall error, encoder error and over current are monitored and shown in an error
trap with the two LED’s at the front side which error has occurred. The table is described in
chapter 2.7.
The under voltage protection switches off the power output stage and reset the complete
system. The motor starts only by resetting the
Enable
.
Important:
Before resetting an error by resetting the Enable make sure that the cause
of the failure is eliminated.
Motor oscillates
•
The gain of the servo amplifier is too high.
Motor runaway
•
The polarity of the encoder is permuted.
•
No load in torque mode.
•
Reduce the maximal speed with pot
Scale
.
•
Input frequency of feedback has been exceeded.
Motor noise
•
Reduce gain with gain pot.
•
Use additional choke in the motor
Motor has no torque
•
Increase the admissible current with
I max
pot.
Motor drifts at standstill
•
Adjust the offset with the offset pot.
•
The input value for the set value isn’t stable.
Motor is going hot
•
Use an additional choke in series with the motor (see accessories).
