Aerotech Npaq DL 4010 Series Hardware Manual page 106

Npaq® Hardware Manual
Table 4-2: Troubleshooting
Symptom
Operator Interface does
not start
Motor spins uncontrollably
Brushless motor will not
spin
Amplifier faults ("ENA"
LED de-energizes) when
motor decelerates.
Amplifier Faults (Amplifier
"ENA" LED de-energizes).
Encoder Feedback Fault
106
Possible Cause and Solution
Make sure that the power cord is connected and that the Npaq is turned
l
on before you start the Operator Interface
Check the Npaq Active status LED (Green LED on rear panel of Npaq)
l
and make sure it is not blinking.
Check FireWire Base Device # (S2, located on rear panel of Npaq). Make
l
sure that there are no conflicts with other devices on the FireWire
network.
Encoder (sine and cosine) signals are improperly connected. See
for motor connection and phasing information.
Motor phases A, B, and C connected incorrectly relative to Hall A, Hall B, and
Hall C inputs. See Section 2.5.
Bus over voltage detected or incorrect parameter setting.
1. RMS current exceeded - run at lower current.
2. Axis parameters not set correctly or attempting to exceed system
capability or setting.
3. Over temperature condition - Turn off and let amplifier cool down. Provide
better ventilation.
4. Motor Feedback problem (Encoder or Hall inputs).
1. Bad encoder feedback device.
2. Power supply voltage low at encoder.
Chapter 4
for motor connection and phasing information.
www.aerotech.com
Maintenance
Section 2.5.