FEC DSP1500 (SAN3) - Manual (Page 146)

enFORCE DSP1500 SAN Unit Operation Manual
(Rev. 4) PAGE 8－12
Chapter 8: Troubleshooting
• Code A8_6 - SERVO AMPLIFIER ERROR / INPUT VOLTAGE ABNORMAL
The SAN3 controller servo power supply circuit or SAN4 controller control power 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 (SAN3 - between 180-242 VAC 3 phase,
SAN4 - between 180-242 VAC 1 phase).
• Code A8_7 - SERVO AMPLIFIER ERROR / DRIVE VOLTAGE ABNORMAL (SAN4)
The SAN4 controller motor 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 with 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 set up.
RECOVERY:
1. Reduce duty cycle - Increase tool “downtime or off time” and/or increase Press Speed and
Part Search Speed to reduce the amount of time running at high load/slow speed.
2. Increase the Press Speed Start Load or Press Speed Start Distance at which Part Search
Speed shifts to Press Speed.
3. If using Load Hold, try decreasing the hold time.
4. If the problem remains, a larger tool assembly may be required for this application. Please
contact FEC.
5. If this happens while performing a “Home Position Search”, verify that the brake is operating
correctly.