IBC control VariMax50, Manual, Page: 11 / 16

9
SETTINGS VIA POTENTIOMETER
Manual speed By closing A1-A2 the speed is controlled via the potentiometer marked
"Manual speed". Can be regulated between 1 and 375 rpm.
The rotor rotates at the set speed, whatever the value of the input signal.
Factory setting at 11 o’clock (1 rpm on motor shaft).
Max rpm Potentiometer for adjusting max. speed.
Regulates between 50 and 375 rpm.
Factory setting at 11 o’clock (50 rpm on motor shaft).
RESET
Reset Push button for resetting the control unit. The control unit is also reset in
the event of voltage drop-out and closure between terminal 11 and 12.
Motor temperature
The control unit regulates power and makes sure the motor will not
overheat.
Short circuit
Probable cause of fault
Alarms and trips in the event of short circuit phase-phase or phase-earth.
- Short circuit between phases in cable or motor
- Short circuit between phase-earth in cable or motor
- Interruption to one phase in cable or motor
Measure the motor resistance; should be equal on all windings.
Motor fault
Internal fault Alarms and trips if an internal fault occurs in the control unit.
Internal fault