LEYBOLD RUVAC WH 2500, Инструкция по установке и эксплуатации

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Troubleshooting
73
130001398_002_C0 - 09/2016 - © Leybold
Error
message
Brief
Description
AL
FLT Possible cause Corrective Action
to
or
DC
Overvoltage
n n
DC bus voltage rose too high.
The deceleration time is too short.
Stall prevention is disabled.
Unstable motor control.
Too high input voltage. Increase the deceleration time.
Enable stall prevention by parameter L3-04.
Check motor parameter settings and adjust
torque and slip compensation, AFR and
hunt ing prevention as needed.
Make sure that the power supply voltage
meets the frequency converters specifica-
tions.
to
or
Input Phase
Loss
n
Input voltage drop or phase imbalance.
One of the input phase is lost.
Loose wires at the frequency converter
input. Check the power supply.
Make sure that all cables are properly fixed
to the correct terminals
to
or
DC Under-
voltage
n n
The voltage in the DC bus fell below the
undervoltage detection level (L2-05).
The power supply failed or one input
phase has been lost.
The power supply is too weak. Check the power supply.
Make sure, that the power supply is strong
enough.
to
or
Controller
Under-
voltage
n
The frequency converters controller
power supply voltage is too low. Cycle power to the frequency converter.
Check if the fault reoccurs.
Replace the frequency converter if the fault
continues to occur.
to
or
DC Charge
Circuit Fault
n
The charge circuit for the DC bus is
broken. Cycle power to the frequency converter.
Check if the fault reoccurs.
Replace the frequency converter if the fault
reoccurs.