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Probable fault cause
Overcurrent
MicroMax750 limits the current at 7 A and trips then after 4-5 s.
- The motor is too small in relation to rotor diameter
- Rotor rotation sluggish
- Damaged motor, e.g. bearing fault
Measure current.
NOTE! Precise voltages and amperages can only be obtained with a
moving-iron instrument.
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SETTINGS VIA POTENTIOMETER
Boost
Torque boost at low rpm.
May be increased if necessary, but motor temperature will increase.
Factory setting at 9 o’clock.
Threshold value
The control unit will start when the input signal exceeds the threshold
value, adjustable between 0-2 V.
Factory setting, min.
Max rpm
Potentiometer for adjusting maximum rpm.
Adjust between 40-100 Hz.
Factory setting, min.
RESET
Reset
Reset button for resetting the control unit.
The control unit also resets in the event of voltage drop-out.
In both cases, all alarms reset.
Automatic restart takes place after a voltage drop-out.
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Summary of Contents for MicroMax750
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