Curtis 1239E - 8 A - AUTOMATED ACIM MOTOR CHARACTERIZATION PROCEDURE

Return to TOC Curtis 1239E-1269E Manual, os 37.0 RevA – May 2021
8A — AUTOMATED ACIM MOTOR CHARACTERIZATION PROCEDURE
pg. 93
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.
is procedure assumes that Initial Setup Steps 1 through 10 have been completed, and that the
motor is approximately room temperature (20–25°C); do not characterize a hot motor without a
temperature sensor.
e 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.
Hint: e procedure is easier to conduct if the various motor characteristics Program parameters
and Monitor variables added to the 1313’s Favorites folder. e PC based 1314 programmer can also
be used, although it does not oer the convenience of the Favorites folder.
TRACTION SYSTEMS
Note: These steps are intended for traction applications. For hydraulic applications, see the
corresponding 1232E/SE–1238E/SE manual (document number 53096).
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 Max Test Speed for the characterization test. Note that this speed might not be achieved,
depending on system characteristics; this is normal. Set this to the application's corresponding
Max Speed value (e.g., Max_Speed_Trq).
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
range. Check and verify that the power limiting map parameters are set to 100% over the
characterization speed range.
Current Limits » Power Limiting Map
WARNING
Quick Links:
Motor Parameters
Characterization Tests p.58
Feedback Options p.65
Power Limiting Map p.46
Monitor
Inputs/Interlock p.77