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Parameter setting
EPr1
error copy unit
failed
Parameter does not
EPr2
match
General troubleshooting
Status
Is power applied to L1, L2, and L3 termi-
nals (is the charging indicator lit)?
Is there voltage across the output termi-
nals T1, T2, and T3?
Is overload causing the motor to be
blocked?
Motor can-
not run
Are there any abnormalities in the VSD?
Has a forward or reverse running com-
mand been issued?
Is analogue frequency signal been
entered?
Is operation mode setting correct?
Are wiring for output terminals T1, T2,
and T3 correct?
Motor runs
inversely
Is wiring for forward and reverse signals
correct?
Is wiring for analogue frequency inputs
The motor
correct?
speed can-
not be regu-
Is the operation mode correctly set?
lated.
Is the load too heavy?
82
Troubleshooting and maintenance
1. Set 3-18=1.2 without connect-
ing copy unit.
2. Copy unit failed
Copy the parameter to VSD to ver-
ify the parameter does not match.
Checking point
1. Modify 3-18
2. Replace copy unit
1. Rewrite again
2. Replace copy unit
Remedy
Is the power applied?
Turn the power OFF and then ON again.
Make sure the power voltage is correct.
Make sure screws are secured firmly.
Turn the power OFF and then ON again.
Reduce the load to let the motor run.
See error descriptions to check wiring
and correct if necessary.
Is analogue frequency input signal wir-
ing correct?
Is voltage of frequency input correct?
Carry out operations via the digital
panel.
Wiring must match the motor's U, V,
and W terminals.
If necessary, check wiring is correct.
If necessary, check wiring is correct.
Check the operation mode of the opera-
tor.
Reduce the load.
Emotron AB 01-3990-11r3
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