78 Mentor MP Short Form Guide
www.controltechniques.com Issue Number: 5
6 Running the motor
This chapter takes the new user through all the essential steps to running a motor for
the first time, in each of the possible operating modes.
Table 6-1 Minimum control connection requirements for each control mode
Refer to Figure 4-1 Power connections for 480V drive on page 35 for minimum
connections to get a motor running.
Ensure that no damage or safety hazard could arise from the motor starting
unexpectedly.
The values of the motor parameters affect the protection of the motor.
The default values in the drive should not be relied upon.
It is essential that the correct value is entered in Pr 5.07 (SE07, 0.28) Motor rated
current. This affects the thermal protection of the motor.
If the keypad mode has been used previously, ensure that the keypad reference has
been set to 0 using the buttons as if the drive is started using the keypad it will
run to the speed defined by the keypad reference (Pr 1.17).
If the intended maximum speed affects the safety of the machinery, additional
independent over-speed protection must be used.
Drive control method Requirements
Te rm i n a l m o d e
Drive enable
Speed reference
Run forward or run reverse command
Keypad mode Drive enable
Serial communications
Drive enable
Serial communications link
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