GEFRAN-SIEI ARTDrive Vector V2 400Vac Series, Instruction Manual

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356 • Chapter 8 Appendix ARTDrive V2 series - Instruction Manual
8.2.6 Hints on How to Correct Other Faulty Conditions
Motor not turning
Failure alarm is displayed: see section 8.2.5.
Once the error has been corrected, acknowlegde the alarm and press the I and
O key to reset the command sequencer.
Keypad display is dark: AC voltage supply to terminals U1/V1/W1 missing or
Regulation power supply overloaded. Check for short circuit on signal wiring.
Enable terminal permissive missing (Check configuration of the reg. terminals).
Drive not accepting commands: drive in SETUP MODE.
The analog input used for the reference value was not assigned or assigned
differently.
Motor turning in the wrong direction
Polarity of the speed reference signal incorrect.
Motor incorrectly connected.
Note for
Regulation mode
= “Field oriented” only:
if the motor lets itself be controlled in the wrong direction the two encoder cables
(A+ and A- or B+ and B-) have to be swaped around in addition to two leads of
the motor cable.
Motor not reaching nominal speed
Drive is at speed limit. Remedy: check Speed top and Speed bottom.
Drive working at current limit (LED Ilimit) Possible causes:
-
Motor overloaded
- Inverter sized too small
- Incorrect
V/f shape
characteristic set
-
Torque reduct
input active
The value entered for the number of encoder pulses is too high.
A correction value reduces the main speed reference value. Remedy: check
control pattern configuration
If main speed reference is acquired via analog input, Full scale speed set too
low may result in restricting range of analog inputs.
Motor accelerates immediately to maximum speed
Reference value set via terminals: Check whether the value varies from min. to
max. value. Potentiometer used for reference value setting: is there a 0V
connection present?
Encoder not connected, or incorrectly connected or not supplied:
Check encoder signals as per section 5.7. If the indicated value does not change
or random values are shown, check the power supply and the cabling of the
encoder. If the indicated value is opposite than the speed reference, reverse the
encoder connections (exchange channel A+ and A- or B+ and B-).
Motor accelerates too slowly
Ramp value incorrectly set.
Drive working at current limit (LED Ilimit) Possible causes:
- Motor overloaded