Curtis 1234/36/38 Manual, Rev. D
51
1 1 J U LY 2 0 0 8 D R A F T
3 — PROGRAMMABLE PARAMETERS: Hydraulic Contactor Parameters
HYDRAULIC CONTACTOR MENU
ALLOWABLE
PARAMETER RANGE DESCRIPTION
Contactor Enable On/Off When programmed On, VCL functions control Driver 3 as the hydraulic
Hydraulic_Contactor_Enable On/Off pump contactor.
OptionBits4 [Bit 1] On: The VCL function Start_Pump() will close the pump contactor
according to the defined pull-in and holding voltages. The VCL function
Stop_Pump() will open the pump contactor.
Off: Driver 3 will be available for general VCL usage. Start_Pump()
and Stop_Pump() will not have any effect.
Pull In Voltage 0–100 % The hydraulic contactor pull-in voltage parameter allows a high initial
Hydraulic_Pull_In_Voltage 0–32767 voltage when the hydraulic contactor driver first turns on, to ensure con
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tactor closure. After 1 second, this peak voltage drops to the contactor
holding voltage.
Note: This voltage will be battery voltage compensated.
Holding Voltage 0–100 % The hydraulic contactor holding voltage parameter allows a reduced
Hydraulic_Holding_Voltage 0–32767 average voltage to be applied to the contactor coil once it has closed. This
parameter must be set high enough to hold the contactor closed under all
shock and vibration conditions the vehicle will be subjected to.
Note: This voltage will be battery voltage compensated.
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