Curtis 1236SE User Manual

104
Curtis 1232E/34E/36E/38E & 1232SE/34SE/36SE Manual, os 30
24 NOVEMBER 2015
d. Kp typically does not need to be changed as the default value will work well
in most applications. is parameter controls how tightly the actual motor
speed will track the requested speed trajectory (speed trajectory is set by the
accel, decel, and brake rates).
If you want to adjust the Kp (for looser or tighter following of the speed
trajectory), follow these guidelines.
• Setthefollowingparameters.Beforesettingthem,makeanote
of their present (default) settings so you can return them to
these original values at the end of this procedure.
*
If your vehicle has an EM Brake: In the EM Brake Control
menu (page48), set the Brake Type to 1. is setting will
release the EM Brake as soon as interlock is asserted.
*
In the Speed Mode » Response menu, set all the accel and
decel rates to their fastest values (0.1 seconds); this allows
better observation of the system response.
*
In the Speed Mode » Speed Controller menu, set the Max
Speed to a low value (≈1000 rpm), as high speed operation
is not needed to observe system response.
*
Set Soft Stop Speed parameter to 0 rpm to disable the soft
stop speed function (see Restraint menu, page 35).
• CycleKSItoclearanyfaults.
• Using very quick, pulsing throttle movements, increase the
throttle and then release it to 0%. e intent is to give the
speed controller torque impulses.
• IncreaseKpandrepeatthethrottletests.IncreaseKpuntilyou
start to notice marginal stability (normally motor bouncing, or
continuous oscillation in the gears, is heard). Note: It is possible
that very heavy vehicles will not experience marginal stability
even at the highest setting of Kp.
• OncetheKpsettingformarginalstabilityisfound,reducethe
Kp value by about one third (i.e., nal Kp = marginal stability
Kp * 2/3).
• IfyouwillbeusingSpeedModeExpress,enterthisKpvalue
for the Kp parameter in the Speed Mode Express menu.
• SettheBrakeType,Accel/DecelRates,MaxSpeed,andSoft
Stop Speed back to their original values.
e. In the Speed Mode » Response menu, adjust the ve Accel and Decel Rate
parameters as necessary while moving the throttle to dierent positions
(i.e., neutral to full throttle, half throttle to full throttle, full throttle to half
throttle, full throttle to neutral, neutral to low throttle, etc.). For AC pump
applications, these parameters are typically set very fast for quick response
to hydraulic inputs.
7 — TUNING GUIDE

Curtis 1236SE Specifications

General

Brand	Curtis
Model	1236SE
Category	Controller
Language	English