To Next PageTo Next PageWhat causes Curtis Instruments Controller OVERVOLTAGE FAULT and how to fix it?
An OVERVOLTAGE FAULT on the Curtis Instruments Controller can occur if the battery voltage exceeds 31 volts, so lower the battery voltage. It may also happen if the vehicle is operating with the charger attached, so disconnect the charger. Finally, ensure a secure battery connection, as an intermittent connection can also trigger this fault.
General| Brand | Curtis Instruments |
|---|---|
| Model | 1212 |
| Category | Controller |
| Language | English |
Advanced speed regulation, linear cutback, optional speed limit, and proprietary algorithms for smooth operation.
Industry standard footprint, programming ease, versatile throttle acceptance, and simplified troubleshooting.
Features like push switch brake release, push-too-fast restriction, automatic compensation, multi-mode, power saver, and IP54 sealing.
High RF immunity, continuous monitoring, automatic power-up checks, and adherence to regulations.
Specific features for pallet trucks like BDI meter input, emergency reverse, and lift lockout output.
Guidance on selecting a clean, dry location and using M4 screws for mounting the controller.
Details on the four 1/4" Faston terminals for high current motor and battery connections.
Information on the 14-pin Molex connector for low current logic control connections.
Wiring diagram for a typical DME application using a 3-wire potentiometer throttle.
Wiring diagram for a typical pallet truck application using a Curtis electronic throttle.
Description of throttle wiring options for the controller.
Wiring and programming for a 5kΩ, 3-wire potentiometer throttle, including fault protection.
Wiring for a voltage throttle and its programming for Throttle Type 5-9 input signals.
Functionality of a speed limit pot and its dual use as a lift lockout input on 1212P models.
Requirements for the master on/off switch, providing logic power and driving control inputs.
Using a push switch for brake release, driving inhibition, and emergency reverse on 1212P.
Using a switch to disable the electromagnetic brake coil when mechanically released.
Selecting between two operating modes (Mode 1 and Mode 2) for different driving conditions.
Function of the emergency stop switch for immediate brake engagement and system shutdown on 1212P.
Parameters controlling acceleration, deceleration, speed limits, and soft start functions.
Parameters for setting throttle type, deadband, maximum throttle, and HPD.
Parameters for setting independent forward and reverse speeds in two distinct modes.
Parameters for main current limit, braking current limit, and boost current.
Parameters for controlling speed inhibit functionality based on input type and speed limits.
Parameters for brake delay, fault check, hold voltage, and brake light activation.
Parameters for fault beeps, reverse beeps, and beep tone constants.
Parameters for system resistance, speed scaling, current rating, and cutback gain.
Parameters for detecting motor stalled faults, including stall speed, PWM, and timeout.
Parameters for configuring the Battery Discharge Indicator (BDI) for battery status.
Parameters for IR compensation and anti-rollback compensation for load and stopping.
Parameters for emergency reverse speed, deceleration, acceleration, and interlock features.
Parameters for sleep mode, reset drive time, emergency stop, and pump SRO.
Access real-time vehicle data for diagnostics, troubleshooting, and parameter adjustment.
Initial steps for setup, including controller power-up and switch checks.
Setting throttle type, neutral deadband, and throttle max for optimal response.
Verifying switch statuses, throttle inputs, and charger inhibit functionality.
Procedure for accurately setting the System Resistance parameter for load compensation.
Programming maximum speeds for forward and reverse in different modes using speed limit pot positions.
Defining acceleration/deceleration rates at speed limit pot endpoints for smooth control.
Tuning IR compensation, anti-rollback, and response smoothness for better vehicle handling.
Using programmer displays and status LED flashes to diagnose and troubleshoot faults.
Controller's safe response to detected faults, ranging from current reduction to complete shutdown.
Accessing and clearing the controller's fault history file as part of routine maintenance.
Guidelines for managing emissions and immunity for EMC in vehicle design.
Overview of 1212P controller compliance with EN 13849 safety standards for machinery.
Procedure for configuring BDI parameters based on battery and charger specifications.
Information on PC Programming Station and handheld programmer capabilities and functions.
Technical data for the 1212 controller, including electrical, environmental, and performance parameters.
