3 — PROGRAMMABLE PARAMETERS
Curtis Model 1226 – September 2019
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pg. 52
Motor Setup Menu
e Motor Setup menu contains the following menus:
MOTOR SETUP MENU
MOTOR MENU............................................... p. 52
COMPENSATION MENU.............................. p. 53
SPEED SENSOR MENU................................. p. 53
MOTOR TEMPERATURE CONTROL MENU....... p. 54
e following topics describe these menus.
Motor Menu
e following table describes the parameters on the Motor menu.
MOTOR SETUP MENU — MOTOR MENU
PARAMETER VALUES DEFAULT DESCRIPTION
System Resistance 0-800mΩ 50mΩ Sets the resistance that the controller will use for load
compensation and speed estimation.
The system resistance is the overall amount of resistance for the
motor, brushes, wiring, and connections.
The controller’s performance depends upon an accurate System
Resistance value. To calculate the correct value, see Set the
System Resistance on page 64.
Resistance Auto Comp On/Off Off Sets whether the controller automatically measures motor
resistance before the brake is released. To measure the
resistance, the controller uses the current limit specied by the
Auto Comp Current Limit parameter.
Note: The measured motor resistance plays an important role in
IR compensation.
Auto Comp Current Limit 5-50% 30% Sets the current limit the controller uses to automatically measure
motor resistance.
The value is a percentage of the controller's 1 minute current
rating. See Table 35 on page 91.
Speed Scaler 20-35V (24V model)
20-45V (36V model)
20-55V (36/48V model)
27V (24V model)
40V (36V model)
52V (36/48V
model)
Sets the maximum voltage that the controller can apply to the motor.
This parameter eliminates variations in maximum speed that
would otherwise occur when driving with a fully charged battery
versus a partially discharged battery.
For example, if Speed Scaler is set to 23V, the maximum vehicle
speed will be the same when the actual battery voltage is at any
voltage between 23V and the overvoltage threshold.
Current Rating 10%-100% 40% Species the motor's current rating as a percentage of the
controller's current rating. Use the current rating provided by the
motor's manufacturer.
For example, if the motor's current rating is 65A and the controller's 1
minute current rating is 130A, the parameter should be set to 50%.
Max Current Time 0-120s 120s Sets the maximum amount of time the motor is allowed to run at
the Mode 1/2 Drive Current Limit.
Cutback Gain 0-100 0% Species how quickly the controller cuts back the drive current to
the motor’s current rating when the motor overheats. The cutback
occurs after the Max Current Time expires.
A higher value provides a quicker cutback.
Fault Stall Time 1-32s 5s Sets the time, in seconds, between when the vehicle stalls and
when the controller reports the Stall Detected fault.
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