..C4 Quick Start Guide..
8
- Control Setting -> LC03 - LC12 -> cut all gains by half and confirm.
If the above methods made no difference and the car still vibrates, make sure the vibrations are not
mechanical. Drift the car with no power and determine the source of the vibrations, if there are any.
Follow these instructions to drift the car with no power:
1. Position the car at the bottom floor. It is best to add some weight inside the car to prevent the car
from running too fast.
2. Disable the doors by setting DIP A3 on machine room board to ON.
3. Enable unintended motion test by setting DIP B8 on machine room board to ON and set
parameter 01-0052 to ON.
4. Push in the B1 contact. The car will start drifting upwards.
NOTE: achieving the highest degree of control over the machine may not always result in the smoothest
motor operation. Sometimes a compromise must be made - sacrificing some comfort to get a more
reliable performance.
3.4 Rollback Mitigation without the use of the Load Weigher
Having a Load Weighing Device (LWD) installed and calibrated will always provide the best starting
performance. However, on jobs where the LWD is not available, some adjustments can be made with
the help of pre-torque.
On the Drive:
Magnetek:
- Adjust (A0) -> Drive (A1) -> Inertia -> decrease the value from the default (2).
- Adjust (A0) -> Drive (A1) -> Response -> increase the value from the default (10).
KEB:
- Control Settings -> LC03-LC12 -> increase parameters to get more gains across the ranges.
On the Controller:
Increase starting speed by following these instructions:
1. Go to SETUP.
2. Go to SPEEDS.
3. Go to MIN ACCEL SPEED.
4. Increase the speed from 1 FPM (default) to 2, 3… up to 5 FPM.
Increase the time before the drive sheave rotates by following these instructions:
1. Go to SETUP.
2. Go to RUN TIMERS.
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