VARISCO PSDrive 11, Инструкция по установке, эксплуатации и обслуживанию

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Alarm Description Possible solutions
LINE<->MOT INV. Reverse the connection of the
power cable and motor cable. • Correct the connection of the power and motor cables.
A01 OVERCUR-
RENT MOT. The current drawn by the motor ex-
ceeds the value set in the parame-
ter Rated motor Amp..
Recovery mode:
• Automatic reset after 10 seconds
for up to 7 attempts, after which
you must wait 60 minutes.
• Removing the power supply.
• Check that the value set for the parameter Rated motor
Amp. corresponds at least to the nominal current of the mo-
tor according to its plate data.
NOTE
The voltage drop across the inverter
(varying between 20 and 40 VAC) causes
the motor to be powered at a slightly low-
er voltage than its plate data. The current
absorbed by the motor could therefore be
slightly higher than the nominal current
shown on its plate data and, to obtain
maximum performance, it is necessary to
increase the parameter Rated motor
Amp. between 5% and 10%.
WARNING
Check the tolerability of carrying a current
higher than its nominal current with the
motor manufacturer.
• Check that all motor phases are correctly connected and
that the connection is properly configured in Star or Delta.
• Check that the motor parameters are set correctly.
• On devices with FOC control, perform a new motor calibra-
tion.
• In the presence of output filters (dV/dt or sinusoidal), check
that they are correctly connected and, in devices with FOC
control, check that the parameters PWM and FOC dynamics
have been set correctly in relation to the length of the motor
cable and the type of filter used.
• Check that the direction of rotation of the pump is correct.
• Make sure the motor is free to rotate and check for mechani-
cal causes .
• Adjust parameter Voltage boost
A02 SENSOR
FAULT The current value read from the
analog input is less than 4 mA.
Recovery mode:
• Alarm reset by STOP key.
• Removing the power supply
• Check that the connections on the device side and the sen-
sor side are correct.
• Check that the sensor is receiving the correct power supply.
• Check that the sensor is working properly.
• In case of use of only one sensor connected to analog input
1, try to connect it to analog input 2.
PSDrive
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