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General| Brand | Curtis |
|---|---|
| Model | 1205 |
| Category | Controller |
| Language | English |
Details mounting and heat sink requirements for the controller unit.
Explains standard controller throttle input, potbox usage, and testing.
Specifies contactor type, coil suppression diode, and precharge resistor.
Discusses requirements for forward/reverse contactor coils and types.
Describes types of switches for forward/reverse control and HPD.
Explains the role of the keyswitch as a master on/off switch.
Details the need and sizing for a polarity protection diode.
Specifies the fuse for protecting the control circuitry.
Recommends a fuse appropriate for the controller's rated current.
Details connections for KSI and throttle inputs using push-on terminals.
Describes high current connections using bus bars and lugged cables.
Explains basic wiring configuration for series motors.
Details the function and wiring of the Keyswitch Input (KSI).
Covers wiring for reversing using standard power configurations.
Explains how standard wiring provides plug braking.
Describes wiring to inhibit plug braking using HPD.
Presents alternate wiring for reversing with 4xSPST contactors.
Details the power wiring for reversing using four SPST contactors.
Explains power wiring for mechanical reversing switches.
Details wiring for various throttle pot configurations.
Simple wiring for Curtis PMC potbox or footpedal to controller.
Details wiring for twist-grip throttles, including bi-directional types.
Explains how to limit vehicle top speed using a resistor.
Details wiring for Curtis PMC's electronic throttle (ET-XXX).
Explains wiring for permanent magnet motors, similar to series motors.
Recommends occasional maintenance steps for the controller unit.
Explains how to adjust plug braking current and acceleration rate settings.
Covers maintenance and adjustment procedures for potboxes.
Provides a procedure for testing and adjusting potbox resistance.
Describes common behaviors that may seem like malfunctions but are normal.
Explains controller overheating and thermal cutback behavior.
Discusses HPD activation due to sudden throttle application.
Guides users on performing diagnostic tests using a voltmeter.
Procedure to check for proper power supply to the controller.
Tests main contactor and KSI terminal for correct operation.
Checks potbox wiring and resistance for 0-5kΩ throttles.
Measures controller output voltage and current to the motor.
Guides on setting up and performing bench tests for controllers.
Step-by-step procedure for conducting controller bench tests.
Defines built-in circuit that controls rate of power increase to motor.
Explains protection against open circuit faults in the potentiometer.
Describes feature that limits motor current to a preset maximum.
Explains how controller allows more current to motor than from battery.
Notes rugged construction for environmental protection, requiring cleanliness.
Defines HPD feature preventing vehicle start with throttle applied.
Defines Key Switch Input (KSI) for controller logic power.
Defines Metal Oxide Semiconductor Field Effect Transistor.
Explains electrical braking by selecting opposite direction without throttle release.
Defines Pulse Width Modulation (chopping) for speed control.
Describes smooth, stepless speed control via PWM.
Explains controller's response to overheating by reducing current limit.
Refers to Thermal protection section for undertemperature behavior.
Details controller's gradual output reduction at low battery voltage.
Explains the power section with MOSFETs, freewheel diode, and plug diode.
Describes the logic circuitry, including KSI, throttle input, and PWM.
Details Pulse Width Modulation (PWM) as a motor control technique.
Lists electrical and physical specifications for 1204 and 1205 controllers.
