Appendix
– Troubleshooting
16
Troubleshooting
This is just a short list of faults/alarm/difficulties
that can come up when starting up a HPV900
Series 2 Axial Flux drive ONLY.
NOTE:
A more detailed fault list can be found
in the HPV900 Series 2 Technical Manual
TM7333.
Faults/Alarms/Difficulties
Description
Solutions
Encoder Flt
The drive is in a run condition
and the encoder is:
not functioning
or
not connected
or
phasing is not proper with
motor phasing
Incorrect Encoder Phasing
Verify that the encoder
phasing is correct
Swap encoder A and /A
channel on TB1-1 and TB1-
2
Perform an Open-Loop
Alignment
Encoder Power Supply
Check that the encoder
power supply on TB1-17
and TB1-18 is 12V
DC
Verify that SW2 is switched
to the 12V position (at
right). Verify that the
voltage between TB1-17
and TB1-18 is 12 volts DC
Parameter Settings
Verify that the Encoder
Connect (C1) is set to axial
flux
Verify that the Encoder
Pulses (A1) is set to a
reasonable number
Encoder Mechanical Setup
Verify that the rider wheel is
firmly on the rotor and that
the encoder spins as the
rotor is spinning
