VC II 230/400-3...15
9
7.2
Potentiometers
On the front panel there are 4 potentiometers enabling the following adjustments.
7.3
Monitoring functions
Heat sink temperature
Exceeding of the permissible temperature causes a fault.
The motor cannot be started anymore.
Reset after cooling and mains reset.
Motor temperature
Exceeding of the permissible temperature causes a fault.
The motor cannot be started anymore.
Reset after cooling and mains reset.
Trigger failure or synchronization error
A trigger failure/synchronization error causes a fault.
The motor cannot be started anymore.
Reset after fault recovery and mains reset.
Possible fault causes:
•
mains phases missing
•
motor connection missing
If, despite the fact that the device is correctly connected and the mains voltage is applied, the fault
cannot be remedied, the device is defective.
„t“
Adjusting the starting time:
The starting time can be adjusted in a range from 0.5 – 16s. The adjustment is linear.
„M“
Adjusting the starting torque:
The starting torque can be adjusted in a range from 0 – 80% of the maximum value.
The adjustment is linear.
„I“
Adjusting the braking current setpoint value:
The braking current can be adjusted in a range from 0 – 100% of the rated device
current. The adjustment is linear. From the position of the potentiometer it is possible
to infer the amount of the braking current.
One graduation mark equals 10% of the rated device current.
„n0“
Adapting the standstill threshold in the case of standstill-dependent braking:
The potentiometer „n0=0“ can be used if the braking current is switched off before the
motor has come to a standstill.
„tbr“
In the case of
special devices of the SO4 type
,
no standstill ist detected. With
the potentiometer „t br“, the braking time can be adjusted between 0-25s. The adjust-
ment is linear. The braking time adjusted on „t br“ becomes effective only after com-
pletion of acceleration, and after switching of the by-pass relays. If, after mains reset,
braking is initiated during start-up, a braking time of 20s is automatically adjusted.
Summary of Contents for VersiComb II 230-3
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