Curtis 1238SE - Part 2 A: Traction Systems Only

8A — AUTOMATED ACIM MOTORCHARACTERIZATION PROCEDURE
Curtis 1232E/34E/36E/38E & 1232SE/34SE/36SE/38SE Manual, os 31 – May 2017 Return to TOC
pg. 86
range. Check and verify that the power limiting map parameters are set to 100% over the
characterization speed range.
Current Limits » Power Limiting Map
Motor will start to rotate after next step.
10. Set Test Throttle = +1.
Motor » Control Algorithms » 0-ACIM » Characterization Tests » Test Throttle
11. Aer approximately 30 or more seconds the motor will begin to rotate. It is critical to verify the
motor is turning in the FORWARD vehicle direction. If it is not, set Test rottle = 0, wait for
the motor to come to a stop, then set Test rottle = –1.
Notes: (1) is step runs faster if TACT is not running. (2) If the motor starts to accelerate then
slows down again, you may need to increase Max Test Current (IM_AutoChar_Max_Test_
Current). See step 4 above.
12. e automated test may take several minutes. When it is complete, the controller will have a Parameter
Change Fault. is is normal. Check whether other faults are present. If you have a Characterization
Error fault, read the number at Monitor » Controller » Motor Characterization Error and reference the
following table. All errors except “1” indicate the motor characterization data is invalid. For error “1,”
the data is valid but Encoder Steps must be set manually. Contact your Curtis distributor or support
engineer if the Motor Characterization Errors indicated cannot be resolved.
Motor Characterization Errors
0 Sequencing error. Normally caused by turning off Motor Characterization Test.
Enable before running test.
1 Encoder signal seen but step size could not be auto-detected; set up Encoder Steps
manually. (Only encoder steps of 32, 48, 64, and 80 will be identied automatically.)
Program » Motor » Encoder Steps (page 59).
2 Motor temperature sensor fault.
3 Motor temperature > MotorTemp_Hot (150°C is the typical default). This is active only
when the motor temp sensor is present and enabled.
4 Controller overtemperature.
5 Controller undertemperature.
6 Battery undervoltage.
7 Battery severe overvoltage.
8 Encoder signal not seen, or one or both channels missing.
9 Motor parameter out of characterization range; check to be sure motor has no load.
13. Cycle KSI power. e motor control should now be operational, though likely poorly optimized.
e Slip Gain test is very important for most, but not all, motors; you won’t know which until you
perform the test and get the result. e following steps will complete the optimization process.
PART 2A: TRACTION SYSTEMS ONLY
14. Run the SlipGain test.
Adjust the SlipGain parameter to provide maximum torque at stall (0 rpm motor speed). Note:
e present SlipGain value was determined by the auto-characterization procedure, and is not
the default value.
Motor » Control Algorithms » 0-ACIM » Characterization Tests » SlipGain
To determine the SlipGain setting, use either of the following two methods, with (a) being the
most accurate:
WARNING
Quick Links:
Power Limiting Map p.43
Characterization Tests p.55
Test rottle
Motor Characterization
Error p.75
Quick Links:
SlipGain p.55