Curtis 1204M User Manual

3 — PROGRAMMABLE PARAMETERS: Misc. Parameters
MISCELLANEOUS PARAMETERS
ALLOWABLE
PARAMETER RANGE DESCRIPTION
HPD On/Off By preventing the vehicle from being turned on with the throttle applied,
the HPD feature ensures the vehicle starts smoothly and safely. To start,
the controller must receive an input to KSI before receiving a throttle
input. In addition to providing routine smooth starts, HPD also protects
againstaccidentalsuddenstartsifproblemsinthelinkage(suchas
bentpartsorabrokenreturnspring)giveathrottleinputsignaltothe
controller even with the throttle released.
 WhenprogrammedOn,theHPDfeatureisenabled.Thisisrequired
for full throttle protection.
When programmed Off, the HPD feature is not enabled.
Variable Plug On/Off Plugbrakingoccurswhentheoppositedirectionisselectedwiththe
forward/reverseswitchwithoutreleasingthethrottle.Thevehiclebrakes
smoothly to a stop and then accelerates in the other direction.
 WhenVariablePlugisprogrammedOn,theplugbrakingcurrent
varies with the amount of applied throttle. The range is from 50% to
100% of the programmed Plug Current Limit (see page 19).
 WhenVariablePlugisprogrammedOff,plugbrakingisxedatthe
current set by the programmed Plug Current Limit.
Boost On/Off In situations where the controller detects that the motor is about to
stall,theboostfeatureprovidesashortburstofextratorquebybriey
applying a current higher than the rated current. This can be useful for
occasionally getting the vehicle out of a pothole or over an obstacle.
Setting the Boost parameter On enables the boost feature.
 IftheBoostparameterissettoOff,thecontroller’soutputislimited
to its rated current.
Contactor Protection On/Off The Contactor Protection parameter can be used to protect the tips of
the F/R contactors and main contactor from possible damage due to high
current arcs.
If the Contactor Protection parameter is programmed On, when the
controller detects the throttle is released (within the throttle deadband) it
will immediately cut off the PWM output, and because the current is cut
offquicklythecontactortipswillbeopenedwithnohighcurrentarcs.
Similarly,whenaF/Rcontactorisopen,thecontrollerwilllockthePWM
output so that when the contactor starts to close again, there is no current
on the tips.
If programmed Off, this protection is lost. However, the PWM will
decrease at the set deceleration rate instead of abruptly, resulting in a
smoother stop—which may be desired in some applications.
Main Drop Delay 0 – 60s TheMainDropDelaydenesthetimedelaybeforethemaincontactor
drops out after there has been no active throttle signal.
Setting Main Drop Delay = 0 means the main contactor never drops
out; it does not mean there is no delay.
Curtis 1204M/1205M/1209M/1221M Manual
23

Curtis 1204M Specifications

General

Brand	Curtis
Model	1204M
Category	Controller
Language	English