Curtis 1298 User Manual

Curtis 1298 Manual, OS 11
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3 — PROGRAMMABLE PARAMETERS: Main Contactor Parameters
MAIN CONTACTOR MENU, cont’d
ALLOWABLE
PARAMETER RANGE DESCRIPTION
Open Delay 0–40 sec. Applicable only when Interlock Type = 0 or 1. The delay can be set to allow the
Open_Delay 0–2500 contactor to remain closed for a period of time (the delay) after the interlock
switch is opened. The delay is useful for preventing unnecessary cycling of the
contactor and for maintaining power to auxiliary functions that may be used for
a short time after the interlock switch has opened.
Checks Enable
On/Off When programmed On, the controller performs ongoing checks to ensure that
Checks_Enable On/Off the main contactor has closed properly each time it is commanded to do so,
OptionBits1 [Bit 2] and that it has not welded closed. These checks (Main Contactor Welded and
Main Contactor Did Not Close) are not performed if this parameter is Off. The
main contactor driver, however, is always protected from short circuits.
Main DNC Threshold 0–84.0 V When Checks Enable = On, this parameter is used as the threshold for
Main_DNC_Threshold 0–5376 detecting a Main Did Not Close fault. The Main DNC Threshold is the
maximum voltage difference between the Keyswitch and Capacitor
voltages. When the voltage difference is above this threshold, and the
battery current is low, a Main Did Not Close fault will be set. Setting this
parameter lower will increase the sensitivity of the fault detect. Setting this
parameter too low may cause false fault trips due to normal voltage drops
between the keyswitch and capacitor voltages.
Setting this parameter = 0 V will disable the Main Did Not Close fault
check.
Precharge Enable
On/Off Turns the precharge feature on and off. Precharge provides a limited
Precharge_Enable On/Off current charge of the controller’s internal capacitor bank before the main
OptionBits2 [Bit 6] contactor is closed. This decreases the arcing that would otherwise occur
when the contactor is closed with the capacitor bank discharged.

Curtis 1298 Specifications

General

Brand	Curtis
Model	1298
Category	Controller
Language	English