Harken ECB Control Box Conversion for Single-Acting Cylin Manual do Utilizador descarregar pdf

Converting a Standard Control Box to Operate Single-Acting Cylinders

Example of diode connections on

double terminal blocks for ECB3

Diode supplying power to motor and valve (A) side

Diode supplying power to motor and valve (B) side

Introduction

In its standard configuration, the Electronic Control Box (ECB) is internally wired to operate the pump motor(s) and energize the valve(s). Generally,

customer supplied switches actuate the function motor(s) (furler, winch, etc.) and a valve in one of two directions:

Forward - Valve (A) side opens Reverse - Valve (B) side opens.

If the ECB unit will be used to power a single-acting cylinder with a poppet-style solenoid valve, pump motor function is needed in only one direction

(A). A simple wiring change can be performed in the field to convert the ECB to operate the pump/open the valve when the (A) side is selected.

When the (B) side is selected, the valve releases (opens A to T), but the motor does not operate.

Understanding ECB Terminal Labeling

There are three (3) standard ECB configurations. ECB1 controls one (1) motor; ECB2 controls two (2) motors; ECB3 controls three (3) motors.

Connections for valves and terminal switches are made to SWxA and SWxB. Diodes are installed at the factory to connect the valve and switch

terminals (SWxA and SWxB) to motor terminals D1 (Motor 1), D2 (Motor 2), D3 (Motor 3).

Conversion Instructions

To convert the ECB internal wiring to allow for cylinder operation, perform the

following steps.

1. Open ECB cover.

2. Locate/select terminals on double terminal blocks to be used for cylinder

function switch wiring

Ex.: If cylinder is designated as Function 1, then switches are typically wired to

SW1A and SW1B.

3. Locate diode connecting selected terminal (SWxB) to D1, D2 or D3 on lower

half of double terminal block.

4. Using 1/8” slot screwdriver, loosen screws securing diode to SWxB and D1, D2

or D3 on double terminal block.

5. Remove diode and set aside or discard.

Removal of diode connecting SWxB to D1, D2 or D3 will prevent power from

going to the motor when (B) side switch is selected.

Note: The valve (B) side will continue to energize when the switch is selected. Diode removal only deactivates motor control.

6. Close and secure ECB cover.

Sample Schematics

Sample of schematic

with diode connecting

SWxB to D1

Sample of schematic

with no diode connection

between SWxB and D1

SOL3A

BLUEBLK

WHT

VALVE3

A COIL / B COIL

PB3A

PB3B

SOL3B

2 A

CB3

+24-3

1 1 2 2

1 1

SW3A

1N5400

CR1

RED

PL1

2 2

MOTOR #1

CONTACTOR COIL

GREEN

SW3B

1N5400

VALVE 3 (A COIL)

VALVE 3 (B COIL)

SOL3A

BLUEBLK

WHT

VALVE3

A COIL / B COIL

PB3A

PB3B

SOL3B

2 A

CB3

+24-3

1 1 2 2

1 1

SW3A

1N5400

CR1

RED

PL1

2 2

MOTOR #1

CONTACTOR COIL

GREEN

VALVE 3 (A COIL)

VALVE 3 (B COIL)

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Página 1 - Sample Schematics

Converting a Standard Control Box to Operate Single-Acting Cylinders Example of diode connections on double terminal blocks for ECB3 Diode supplying

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Harken ECB Control Box Conversion for Single-Acting Cylin Manual do Utilizador

Consulte online ou descarregue Manual do Utilizador para Hardware Harken ECB Control Box Conversion for Single-Acting Cylin. Harken ECB Control Box Conversion for Single-Acting Cylinder Operation User Manual Manual do Utilizador

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