3 — PROGRAMMABLE PARAMETERS
Curtis Model 1226 – September 2019
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pg. 54
MOTOR SETUP MENU — SPEED SENSOR MENU, cont’d
PARAMETER VALUES DEFAULT DESCRIPTION
Kp 0-100% 20% Species how aggressively the controller attempts to limit the
motor speed to the Max Speed. Larger values provide a slower
response time.
Following are some guidelines:
• If the value is too high, the vehicle might oscillate when the
controller tries to limit the speed.
• If the value is too low, the vehicle could signicantly exceed
the Max Speed.
Ki 0-100% 20% Species the integral gain used to force a zero steady state error
to limit the motor to the Max Speed. Larger values provide a
shorter response time.
Following are some guidelines:
• If the value is too high, the vehicle might oscillate when the
controller tries to limit the speed.
• If the value is too low, the controller could take a long time
to reduce motor speed to the Max Speed.
Motor Temperature Control Menu
e following table describes the parameters on the Motor Temperature Control menu. For more
information on using a motor temperature sensor, see page 26.
MOTOR SETUP MENU — MOTOR TEMPERATURE CONTROL MENU
PARAMETER VALUES DEFAULT DESCRIPTION
Sensor Enable [PCF] On/Off Off Species whether the motor temperature control function is
enabled:
When Sensor Enable is on, the controller will apply the motor
temperature control features when the motor temperature
is between the Temperature Hot and Temperature Max
temperatures.
Sensor Type 1-5 3 Species the type of temperature sensor used by the vehicle.
The following values represent the controller’s predened sensor
types:
1 = KTY83–122
2 = 2 KTY83–122 sensors, in series
3 = KTY84–130 or KTY84–150
4 = 2 KTY84–130 or KTY84–150 sensors, in series
5 = PT1000
If these predened sensor types are unsuitable for your vehicle’s
sensor, you can add a custom sensor type. Please contact your
Curtis Instruments distributor or support engineer.
Note: The industry standard KTY temperature sensors are silicon
temperature sensors with a polarity band (cathode). The polarity
band must be connected to I/O Ground.
Sensor Temp Offset –20°C – 20°C 0°C Species a temperature by which the controller compensates
for known offsets in the vehicle system’s components. Use this
parameter to handle conditions such as the following:
• When a sensor is placed in the motor at a location with a
known offset to the critical temperature.
• When the sensor itself has a known offset.