Control Features

F-code Section C-code

PS S5.12 5460 24 Volt, 400 Amp Transistor Controller

Version no T-code 001 HMX

is automatically applied to bring the vehicle to a gentle stop. The neutral braking feature simulates the feel of compression braking in an internal combustion engine vehicle.

2.1. Control Feature

• Full bridge control of the motor field allows reversing without the use of direction contactors. • Fully compatible with the 1307 Programmer for programming, diagnostic and test information. • Armature current controlled at all times, reducing arcing and brush wear. • Regenerative braking increased usable battery energy and reduces motor heating. • Neutral braking provides automatic braking in neutral.

Simulates the feel of compression braking. Braking level is adjustable. • MultiMode allows up to four user selectable vehicle operating profiles. • Programmable to match individual separately excited motor characteristics. • Meets or exceeds EEC fault detect requirements with circuitry and software to detect faults in the throttle circuit, MOSFET drive circuits, and emergency reverse wiring. • Vehicle speed is controlled and limited at top end through separate field and armature control. • Passive regen provides vehicle speed control at any throttle position when going down ramps. • Linear temperature cutback on armature and field drive current limits. No sudden loss of power under any thermal conditions. • Under voltage cutback reduces motor current to maintain the battery voltage above the undervoltage point. • PWM drivers for contactors are programmable for pull-in and holding currents to reduce power dissipation and allow the use of common contactors.

F-code Section C-code

PS S5.12 5460 24 Volt, 400 Amp Transistor Controller

Version no T-code 001 HMX

• HPD (high pedal disable) and SRO (static return to off) interlock options ensure proper start-up sequence. • Emergency reverse (belly button) input, upon activation, causes immediate braking, then drive in the reverse direction at high torque. • Integral fault LED provides a “controller operating properly” signal and flashes error code information when a fault occurs. • Fully protected inputs and outputs. • Active power on self test and continuous diagnostics during operation. • Internal watchdog circuits ensure proper software operation.