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Wesley BC-620-4CA User Manual

Page 55

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Curtis 1234/36/38 Manual,

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11

51

2 3 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-
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.