Verifying Car Direction And Motor Control (Torqmax) - MCi iControl User Manual

7. When done is displayed, release the ENABLE and UP switches. The drive will finish
making several calculations, CALC is displayed, and updating the parameter values
with the measured values.
8. Return the Pick voltage, Hold voltage and Relevel voltage to their previous values and
set Pattern scaling = 100.000 percent.

Verifying Car Direction and Motor Control (TORQMAX)

1. If the brake picks but the car does not move, oscillates, or trips an E.ENC fault, change
the F5 drive LF.28 parameter setting. This swaps encoder channels or reverses motor
rotation internally in the drive. Physically changing external encoder connections is not
necessary and is not recommended. The F5 drive LF.28 options are as follows:
• 0 = nothing reversed
• 1 = encoder A<->B swapped
• 2 = motor rotation reversed
• 3 = motor rotation reversed and encoder A<->B swapped
2. If the car moves in the opposite of the intended direction while drawing normal current,
turn power off and wait until there is no voltage present at the DC bus, then proceed
with step 3. Motor current can be verified by displaying the F5 drive parameter LF.93.
Danger
Turn power off and wait five minutes for DC bus voltage to bleed off before taking the drive
cover off. Do not touch any terminals without ensuring that high voltage is not present.
3. Interchange two of the motor leads. Turn power on.
4. Try to run the car on Inspection. If the drive still trips an E.ENC fault, again change the
F5 drive parameter LF.28. (Refer to LF.28 parameter options in step 1). The car should
now move in the correct direction and draw normal current.
Running on Machine Room Inspection
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