FEC AFC1500 - Manual (Page 166)

Chapter 9: Troubleshooting
Page 9-12
9.9.4 Code 8-6 servo amplifier error / iNPUT voltage abnormal
The SAN controller servo power supply circuit has detected improper input voltage either
above or below the specified limits
This abnormal is caused from;
1. The controller internal power supply has failed
2. Source voltage is out of the limit (180-242 volts AC) and/or the environment temperature is
also close to the limit.
3. One or more phases of input power is missing
RECOVERY:
1. Replace the controller
2. Provide additional cooling to the enclosure.
3. Verify and correct the source voltage as required. Between 180-242 VAC 3 phase.
9.9.5 Code 8-9 SERVO AMPLIFIER ERROR/ OVER SPEED.
The resolver signal received at the SAN controller indicates an overspeed condition.
This abnormal is caused from;
1. The resolver cable or resolver has failed.
RECOVERY:
1. Check resolver using method in 8.2.2
2. Replace resolver cable to spare cable
3. Replace tool assembly.
9.9.6 Code 8-10 SERVO AMPLIFIER ERROR / OVER LOAD ( I SQUARE T)
The duty cycle of the fastening application is too severe for this size of tool, or for the para-
meters currently setup.
RECOVERY:
1. Reduce duty cycle - Increase tool “downtime or off time” and/or increase torque speed to
reduce the amount of time running at high torque/slow speed.
2. If the problem remains, a larger tool assembly may be required for this application. Please
contact FEC.
3. Confirm that Crossover Torque is not set between 95% - 100% of Standard Torque – See
note @ 6.3.
9.9.7 Code 8-11 SERVO AMPLIFIER ERROR / RESOLVER SIGNAL ERROR.
The resolver signal received is not correct.
RECOVERY:
1. Check the cables and look for loose connectors or visible damages to the cable.
2. Replace with known good tool.