FEC DSP1500 (SAN3) - Manual (Page 128)

PAGE ８－12
enFORCE Operation Manual
• Code A8_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.
CAUSE:
1. The controller internal power supply has failed.
2. Source voltage is out of the limit (180-242 VAC) and/or the environment temperature is also
close to the limit.
3. One or more phases of input power are 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).
• Code A8_9 - SERVO AMPLIFIER ERROR / OVER SPEED.
The resolver signal received at the SAN controller indicates an over speed condition.
CAUSE:
1. The resolver cable or resolver has failed.
RECOVERY:
1. Check resolver using method in 7.2.3.
2. Replace resolver cable to spare cable.
3. Replace tool assembly.
• Code A8_10 - SERVO AMPLIFIER ERROR / OVER LOAD (I SQUARE T)
The duty cycle of the press application is too severe for this size of tool, or for the parameters
currently setup.
RECOVERY:
1. Reduce duty cycle - Increase tool “downtime or off time” and/or increase Load Speed and
Slow Down Speed to reduce the amount of time running at high load/slow speed.
2. Increase the Speed Change Load or Crossover Distance at which Slow Down Speed shifts to
Load Speed.
If Speed Change Load is larger than 1
ST
Load, then 1
ST
Load will be used for
changing to Load Speed. Increase 1 ST Load to be greater than Speed Change
Load.
3. If the problem remains, a larger tool assembly may be required for this application. Please
contact FEC.
• Code A8_11 - SERVO AMPLIFIER ERROR / RESOLVER SIGNAL ERROR.
The resolver signal received is not correct.
RECOVERY:
1. Check the cable and look for loose connectors or visible damages to the cable.
2. Replace with known good tool.
Chapter 8: Troubleshooting