KEB COMBIVERT F5, Reference Manual

Page: 103 / 349

The Encoder Synchronization process will determine the correct A/B
encoder channel phasing and direction of rotation for both IM and PM
motors. For PM motors, the Encoder Synchronization process immediately
follows either method of learning the encoder pole position.
Begin the process by setting:
• LL07 - Encoder Synchronization to “Start”
Then follow the directions on the keypad. The drive will iteratively run the
elevator and swap the phasing and direction of the A/B channels as needed.
SETUP OF THE ENCODER LEARN IS NOW COMPLETE!
At this point, the drive should be set up far enough to run reasonably well
on inspection speed. At this point, the user should run the elevator in
both the up/down directions, verifying that the current in both directions
is reasonable. The current can be viewed from the Home or Diagnostics
screens. For a balanced car, the current should be reasonably low. For an
empty car, the running current should be less than motor rated current in
both directions.
If operation on inspection speed in both directions shows no issues, the
next step is to run the elevator up to high speed.
Before this is done, there may be a few parameters that need adjustment:
LC30 - Maximum Torque is used to limit the output current to the
motor. It is primarily used to protect the motor from extreme or
prolonged high currents, which may occur during initial setup or
troubleshooting. Default is 150%. Under normal operation, this will
typically need to be set in the range of 200 - 250%.
Now, the elevator should be able to run at high speed with no major issues.
At this point, if the user is satisfied, no further adjustments may be needed
to increase ride quality since the default settings for the speed control
provide a very good starting point in most cases.
5.10.3 Encoder
Synchronization
5.11 Running the
Motor
i
5.11.1 Running at High
Speed
103
Initial Startup