User manual

3U Servo Amplifier
Global Faults
A F 1 04 PWM over frequency fault – indicates the PWM frequency detected by the
drive exceeds specified limits. Check your settings (I-vars)
A F 2 0B Strobe Word Fault – not valid strobe word $3FFFFF
A F 3 0D EEPROM Communication Fault – make sure the drive is properly
grounded. If problem persists, send the drive for RMA.
A F 4 0E Shunt RMS Fault – The shunt will stay on continuously for only 2
seconds.
A F 5 0F Soft Start Fault – Check the AC mains, if fault persists, send for RMA
A F b 07 Bus Over-Voltage Fault – indicates either that excessive bus voltage has
been detected, or no bus voltage at all has been detected, so check your
bus supply, regen resistors (GARxx).
A F d 09 Shunt Short Circuit Fault – check the shunt resistor leads for short. If the
connector is unplugged and the error persists, send the drive for RMA.
A F U 08 Bus Under-Voltage Fault – indicates that not enough bus voltage has been
detected, check the DC bus to ensure that more than 10V exists.
A F L 0C AC Line monitor – check the AC mains for more than 97VAC.
Status LEDs (for older and newer revision) 3U042
LED Color Description
ENA1 Red/Green Green when axis enabled. Red when
drive is at fault. (Unlit does not
necessarily mean fault.)
ENA2 Red/Green Green when axis enabled. Red when
drive is at fault. (Unlit does not
necessarily mean fault.)
PWR Green Lit when Logic has power.
For 3U042
Note:
There are currently two versions of the 3U042 (DAD3U) drive, the old version which
was up to revision-103 (603729) and the newer revision, which is -104 and above.
The easiest way to recognize the two versions is the period LED on the seven-segment
display. If the period is blinking, then the drive is the newer version; if the period is
not blinking, it is the older one. You can also check the revision number at the boards
Troubleshooting 40