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chungsaraSep 12, 2025
What does Curtis 1226 parameter out of range mean?
- Eeddie65Sep 12, 2025
If the Curtis Controller displays 'Parameter Out Of Range', it means a parameter is set to an invalid value. Update the parameter to a valid value.
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If the Curtis Controller displays 'Parameter Out Of Range', it means a parameter is set to an invalid value. Update the parameter to a valid value.
What to do if Curtis 1226 shows overcurrent?
If your Curtis Controller displays an overcurrent error, it could be due to an external short in the phase M1 or M2 motor connections, or the controller itself might be defective. Check the connections and then cycle the keyswitch.
What to do if Curtis 1226 displays severe overtemp?
If your Curtis Controller is showing a severe overtemp error, it means the controller is operating in an extremely hot environment. Decrease the heatsink temperature to below 85°C, then cycle the keyswitch.
What does Curtis Controller Driver 1 Shutdown mean?
If the Curtis Controller displays 'Driver 1 Shutdown', it could indicate that the coil is open or shorted, the connector pins for the controller or contactor coil are dirty, there are bad connector crimps or faulty wiring, or there is driver overcurrent. Address the possible causes, then cycle the keyswitch.
What does Curtis 1226 parameter mismatch mean?
If the Curtis Controller displays 'Parameter Mismatch', it means two or more parameters are set to conflicting values. Adjust the parameters, then cycle the keyswitch.
What does Curtis Controller AUX 1 Driver Shutdown mean?
If the Curtis Controller displays 'AUX 1 Driver Shutdown', it means the driver is open or shorted, the controller’s or contactor coil’s connector pins are dirty, or there are bad connector crimps or faulty wiring. Repair the wiring and connections, then cycle the keyswitch.
What to do if Curtis 1226 Controller displays controller severe undertemp?
If your Curtis Controller is showing a severe undertemp error, it means the controller is operating in an extremely cold environment. Raise the heatsink temperature to above –40°C, then cycle the keyswitch.
What could cause a motor temp sensor fault in a Curtis Controller?
A motor temp sensor fault in a Curtis Controller could be due to an incorrectly connected motor thermistor, incorrect sensor polarity between pins J1-5 and J1-6, or incorrectly configured motor temperature and sensor parameters. Address the possible causes.
What does Curtis 1226 Controller AUX 2 Driver Shutdown mean?
If the Curtis Controller displays 'AUX 2 Driver Shutdown', it means the driver is open or shorted, the controller’s or contactor coil’s connector pins are dirty, or there are bad connector crimps or faulty wiring. Repair the wiring and connections, then cycle the keyswitch.
What does it mean if Curtis 1226 shows main contactor welded and what to do?
If the Curtis Controller indicates that the main contactor is welded, it means the main contactor tips are welded closed, motor phase M1 or M2 is disconnected or open, or an alternate voltage path is providing current to the capacitor bank. Address the possible causes, then cycle the keyswitch.
General| Brand | Curtis |
|---|---|
| Model | 1226 |
| Category | Controller |
| Language | English |
Details on M5 bolt-on terminals for battery and motor connections.
Information on the 3 low-current connectors (J1, J2, J3).
Representative wiring diagram for typical Class III vehicle applications.
Overview of flexible I/Os and predefined functions for applications.
Information on the 3 generic drivers supporting PWM and different modes.
How analog inputs support throttle potentiometer circuits.
Contains menus for configuring application-specific settings.
Parameters to configure speed-related functions like max/min speeds.
Parameters to configure two distinct speed modes for different conditions.
Defines high and low speed thresholds for various parameters.
Specifies throttle type, responsiveness, and HPD/SRO function.
Explains deadband, max, offset, and map parameters affecting throttle response.
Explains High Pedal Disable and Static Return to Off safety functions.
Menus for battery voltage monitoring and protection settings.
Parameters for configuring the Battery Discharge Indicator (BDI) output.
Configuration options for the emergency reverse feature.
Detailed configuration for the emergency reverse safety function.
Contains menus for configuring inputs, outputs, and limits.
Menus for configuring analog inputs 1 through 5.
Assigns functions to switches and controls for analog inputs.
Sets maximum current limits for drive, boost, regen, and brake operations.
Configuration for motor resistance, current rating, and speed settings.
Steps for preparing the vehicle before controller programming.
Procedures to set up the throttle type and ensure full range operation.
Tuning the throttle's deadband for proper neutral range and brake engagement.
Setting wiper voltage to achieve 100% controller output at full throttle.
Verifying correct throttle operation and polarity for reverse features.
Checking critical parameters and switch states for correct configuration.
Procedure to accurately set the System Resistance parameter for performance.
Setting speed limit pot maximum and minimum positions for each speed mode.
Configuring acceleration and deceleration rates for smooth throttle response.
Configuring IR Comp and Anti-Rollback Comp for load and slope conditions.
Adjusting Gear Soften and Soft Start for smoother vehicle response.
Testing and fine-tuning the BDI configuration for accuracy.
Using programming devices to view real-time data and faults.
Explains fault code structure and how LEDs indicate digits.
Guidance on interpreting faults and their causes and actions.
