Curtis MultiMode 1214-8 Manual page 32

Curtis 1214-/15-/19-8 Manual
High-pedal-disable (HPD)
The HPD feature prevents controller output if the controller is turned on while
the throttle is not in neutral. The controller can be programmed to have HPD
based either on brake/seat switch input or on KSI.
Brake-type HPD
To start a vehicle with brake-type HPD, the controller must receive a brake/seat
switch input before receiving a throttle input. Controller operation will be
disabled immediately if pedal demand (throttle input) is greater than 25% duty
factor at the time the brake/seat switch is closed. Normal controller operation is
regained by reducing the throttle demand to less than 25%.
Sequencing delay, which can be set with the handheld programmer, provides
a variable delay before disabling the controller. If the brake/seat switch is opened
while the throttle is above the HPD threshold (25%), HPD is not activated if the
brake/seat switch is then closed before the delay time elapses.
KSI-type HPD
The HPD feature can be activated by KSI input instead of brake/seat switch
input, if preferred. To start a vehicle with this type of HPD, the controller must
receive a KSI input before receiving a throttle input.
KSI
KSI (Key Switch Input) provides power to the controller's logic board, and
initializes and starts diagnostics. In combination with the brake input, KSI
enables all logic functions.
Some vehicles may have no keyswitch (KSI simply tied to B+) or may have
the key permanently turned on.
LED
An LED on the controller's front face flashes a code if a fault is detected by the
controller. The fault codes are listed in Table 2 (page 21). The fault code will
continue to flash until the fault condition has been cleared during active fault
detection. This will typically happen after cycling KSI for power-up fault condi-
tions, and cycling the brake/seat switch for faults detected during operation.
APPENDIX A: FEATURES & FUNCTIONS
A-5