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CHAPTER 6 - DIAGNOSTICS AND TROUBLESHOOTING
PROBLEM
POINT TO BE
CORRECTIVE ACTION
CHECKED
Motor speed too
Programming error
1.Check if the contents of P133 (minimum frequency) and P134
high or too low
(reference limits)
(maximum frequency) are according to the motor
and to the
application.
Signal of the
1.Check the level of the control signal of the reference.
Reference Control
2.Check the programming (gains and offset) at P234 to P240.
(if used)
Motor nameplate
1.Check if the used motor meets the application requirements.
data
Display OFF
Keypad connection
1.Check the keypad connections to the inverter.
Power supply
1.The power supply must be within the following ranges:
200-240 V models:- Min: 170 V
- Max: 264 V
380-480 V models:- Min: 323 V
- Max: 528 V
Table 6.3 (cont.)
- Solution for the most frequent problems
