6 — COMMISSIONING
Curtis AC F2-A, F4-A, F6-A Motor Controllers – FOS 4.5 – April 2022 Return to TOC
pg. 176
Step 23: Motor Characterization
Tuning Guide
Aer completing these initial setup steps, and the auto-characterization procedure if applicable,
perform further tuning by following the Tuning Guide.
Hint: If using the 1313 handheld programmer, add the “tuning” parameters and monitor variables
to the Favorites menu for quick changes and checks. e equivalent in CIT is creating a dashboard.
AUTOMATED ACIM (MOTOR) CHARACTERIZATION PROCEDURE
is procedure is only for applications using an ACIM traction motor and quadrature encoder.
Assumptions:
• e initial setup steps 1 through 21 are complete.
• e motor is approximately at room temperature (20–25° C); do not characterize a hot motor
without a temperature sensor.
When characterizing a traction system, ensure the vehicle drive wheels are clearly o the ground.
Safely block it from accidental movement. e drive wheels should be freely spinning — any
dragging brake or excessive friction may invalidate this test, or cause it to fail.
AC MOTOR SYSTEMS
e ACIM motor parameters can be copied from EOS to FOS, however, current regulator gains
cannot and are now removed from the ACIM motor model.
Commission ACIM motors using a Quadrature Encoder. If using a Sin/Cos sensor, follow the Sin/
Cos sensor setup. Consult Curtis if there are any questions.
When the FOS (cdev) defaults are loaded, the (new to FOS 4.0) Motor Setup Needed fault will be
present. is fault is cleared automatically by following the commissioning procedure. e Motor
Setup Needed fault Type (value) will indicate the tests that need to be run, as shown in the table.
Convert the hexadecimal number to binary for the bit.
Bit Positions Description
1 Current regulator tuning.
2 Slip gain setting.
3 Base speed setting.
4 Full automated test run.
ACIM Commissioning Routine:
Be sure that the motor is free to spin without load and that the motor/machine is secure.
1. Set the Motor Type and the Motor Pole Pairs.
The motor will rotate during this procedure. Do not take the vehicle down off the blocks.
WARNING
Quick Link:
Tuning Guide p.183
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