TECO N3 Series - 22.0 Troubleshooting

N3 Drive Operations Manual
Error Display Codes Cont. & Troubleshooting 89
Err6
Communication
failure
1. Faulty / incorrect wiring.
2. Incorrect settings of communication
parameters.
3. Check-sum error
4. Incorrect communication
verification.
1. Check hardware and
wiring.
2. Check parameters A161 –
A164.
Err7
Incorrect
parameter
settings
1. Attempt to change A175.
2. Voltage and current detection circuits
are malfunctioning.
Reset inverter or contact
technical support.
EPr1
Parameter set
error, Copy unit
failed
1. Can not connect with Copy unit.
2. Copy unit failure.
3. The HP rating on Copy unit and the
inverter are different.
1. Modify parameter A040.
2. Change copy unit.
3. The HP rating need to be
the same.
EPr2
Parameters do
not match
Copy the parameter to the inverter
to verify the parameters do not match.
1. The voltage and HP rating
of the Copy unit is different
than the inverter.
2. Change copy unit.
NOTES:
22.0 Troubleshooting
The following troubleshooting section includes both general troubleshooting and flow chart guidance. The flowcharts
include:
Fig. 22.1.1 Fault Display Troubleshooting
Fig. 22.1.2 OC and OL Fault Troubleshooting
Fig. 22.1.3. OV and LV Fault Troubleshooting
Fig. 22.1.4 Motor Will Not Run
Fig. 22.1.5 Motor Overheating
Fig. 22.1.6 Motor Instability
Cont.
!
DANGER
Use extreme caution when troubleshooting as lethal voltages are present.