Curtis 1238SE - Automated ACIM Motor Characterization Procedure; Part 1: Traction and Hydraulic Systems

8A — AUTOMATED ACIM MOTOR CHARACTERIZATION PROCEDURE
pg. 85
Return to TOC Curtis 1232E/34E/36E/38E & 1232SE/34SE/36SE/38SE Manual, os 31 – May 2017
8A — AUTOMATED ACIM MOTOR
CHARACTERIZATION PROCEDURE
Motor will rotate during this procedure. Do not take the vehicle down off the blocks.
is procedure is only for applications using an ACIM motor and quadrature encoder.
e procedure is performed in two parts. Both parts must be completed for proper controller setup.
e rst part applies to all systems, and the second part is dierent for traction systems and hydraulic
systems. It is assumed that Initial Setup steps 1 through 10 have been completed.
e procedure assumes the motor is approximately room temperature (20–25°C); do not characterize
a hot motor without a temperature sensor.
If characterizing a traction system, the vehicle should have its drive wheels clearly o ground,
and the vehicle should be safely blocked 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.
If characterizing a hydraulic system, the motor must be unbolted from the hydraulic pump and
allowed to spin freely. e test will not work properly if the motor is le connected to the pump.
Note: e motor may spin to high speed in either direction.
Hint: e procedure is easier to conduct if you add the various motor Parameter (Program) and
Monitor variables to your 1313’s Favorites folder. e 1314 programmer can also be used, although
it does not oer the convenience of the Favorites folder.
PART 1: TRACTION AND HYDRAULIC SYSTEMS
1. Verify that Motor Technology = 0-ACIM and Feedback Type = 1-encoder. is conguration,
and these settings, are required to run this procedure.
Motor » Control Algorithms » 0-ACIM
Motor » Feedback Options » Feedback Type » 1-Encoder
2. Enter the number of motor poles in the Motor Poles parameter. e vast majority of induction
motors will have 4 poles.
Motor » Control Algorithms » 0-ACIM » Characterization Tests » Motor Poles
3. Enter the desired Max Test Speed for the characterization test. Note this speed might not be
achieved, depending on system characteristics; this is normal. A typical setting is approximately
1/3 of the maximum motor speed in the application.
Motor » Control Algorithms » 0-ACIM » Characterization Tests » Max Test Speed
4. Enter the desired Max Test Current for the characterization test. A typical setting is 70% (70%
of the maximum motor or controller rating, whichever is higher). Generally this is only reduced
if motor heating during the test is a problem, or resonance in the motor occurs at high currents.
Motor » Control Algorithms » 0-ACIM » Characterization Tests » Max Test Current.
5. Using the 1313/1314, clear the Fault History (Faults » Clear Fault History).
6. Ensure that Interlock is enabled (Monitor » Inputs » Interlock).
7. Set Test Enable = 1.
Motor » Control Algorithms » 0-ACIM » Characterization Tests » Test Enable
8. If any faults are present, stop and resolve the issue before continuing.
9. Note that no cutbacks should be in eect (thermal, voltage, etc.) when these tests are run.
Also, the power limiting maps should not cut back current over the characterization speed
WARNING
Quick Links:
Motor Parameters
Control Algorithms p.55
Characterization Tests p.55
Feedback Options p.59
Power Limiting Map p.43
Monitor
Inputs/Interlock p.70