Curtis 1239E - Page 94

7 — INITIAL SETUP
Curtis 1239E-1269E Manual, os 37.0 RevA – May 2021
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pg. 90
Step 8: Motor Technology & Feedback Type
Set the Motor Technology parameter to match the motor used in the application (0 = ACIM, 1
= PMAC).
Set the Motor Feedback Type parameter based on the Motor Technology setting:
Feedback Type = 1 (quadrature position sensor {encoder}) for ACIM,
Feedback Type = 2 (Sin/Cos sensor) for PMAC.
Make sure that the Feedback Type matches the feedback device used on the motor, and the right type
of device for the motor. If there is not a match, stop the setup procedure until a compatible motor
and feedback device are obtained and installed.
The ACIM motors use a quadrature encoder. Program the Encoder Steps parameter to the
correct setting. is information is typically available from the motor manufacturer. In the ACIM
Characterization Procedure (Chapter 8A), it can determine the encoder steps, but only for encoders
with 32, 48, 64, or 80 pulses per revolution (ppr).
Setting the Encoder Steps parameter improperly may cause vehicle malfunction, including
uncommanded drive.
If the application uses a PMAC motor (which must use a Sin/Cos sensor), the Sin/Cos min and max
voltages will be learned during the PMAC Commissioning Procedure (Chapter 8B).
Step 9: Faults (see Chapter 11)
Cycle KSI (to clear any parameter change faults) and use the programmer to check for faults in the
controller. All faults and errors (including those in the History le) must be cleared before continuing
with the initial setup. Use Chapter 10 for help in troubleshooting. Contact the Curtis customer
support engineer to resolve any fault issues before continuing with the setup procedure.
Step 10: Setting Feedback Direction
ACIM:
Check the encoder while the vehicle drive wheels remain o the ground, no faults present in the
controller, the interlock O (as veried in the Monitor » Inputs menu), and both the throttle and
brake in neutral (Mapped rottle = 0% and Mapped Brake = 0% in the Monitor » Inputs menu).
Use the Monitor » Motor menu to view the Motor RPM display. Turn the motor by hand and observe
the sign of Motor RPM. Positive is forward and negative is reverse. If there is a positive Motor RPM
when rotating the motor in the forward direction, and a negative Motor RPM when rotating the
motor in the reverse direction, the Swap Feedback Direction parameter is correct and should not be
changed. If the Motor RPM value is negative when rotating the motor forward, the Swap Feedback
Direction parameter must be changed. Cycle KSI power and repeat the procedure until the Swap
Feedback Direction setting is correct. If the vehicle will use the emergency reverse feature*, the reverse
direction (negative Motor RPM) must be correctly selected so that when the Emergency reverse input
is active the motor will rotate in the reverse direction.
Contact the Curtis distributor or support engineer to resolve any issues about encoder direction or
emergency reverse before continuing with the setup procedure.
PMAC:
Step 10 is not applicable to PMAC motors. Go to the next step for PMAC motor in-vehicle
commissioning (Chapter 8B).
WARNING
Quick Links:
Monitor/Inputs Menu p.77
Monitor/Motor Menu p.80
Swap Feedback Direction p.60
*NOTE: emergency reverse is not applicable to the 1239E/1269E controller on-road applications.
Quick Links:
Motor Technology p.57
Motor Feedback p.65