Specifications

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BEFORE BEGINNING INSTALLATION OF THIS MURPHY PRODUCT

Disconnect all electrical power to the machine

Make sure the machine cannot operate during installation

Follow all safety warnings of the machine manufacturer

Read and follow all installation instructions

ARNING

General

The Autostart AS731 and AS732 provide full-function,

automatic or manual control for diesel generators.

The fully programmable, microprocessor-based units

include full measurement and display of engine and AC

generator parameters, with a fully automatic fault protection

and warning system. Facilities are also provided for remote

monitoring and control via RS232 communication link and

PC software; the AS732 additionally features an RS485

MODBUS RTU compatible link.

This document details the panel mounting and electrical

connection of AS731 and AS732 units fitted with firmware

versions V1.00 through V2.x.x. Further details about

specification, programming and operation may be found

in the following documents:-

Doc. ref. Title

ms6127 AS731 bulletin

ms6343 AS732 bulletin

mi6129 AS731/732 installation B: programming

mi6243 AS731/732 installation C:

AS730 to AS731/AS732 retrofitting

mi6130 AS731/732 operation

mi6131 AS731/732 and PC software model AS7CN

mi6344 AS732 RS485 MODBUS protocol

MODBUS® is a registered trademark of AEG Schneider Automation Inc.

Autostart AS731/AS732 Generator Controller

Installation Instructions

Section A: Panel Installation and Wiring

mi6128

revision G, 10

Sept 2007

catalogue section 75

Please read the following information before installing. A visual inspection of this product for damage during

shipping is recommended before installation. It is your responsibility to ensure that qualified mechanical and electrical

technicians install this product. If in doubt, please contact your local Murphy representative.

GENERAL INFORMATION

Front facia

1. 2 line x 16 character backlit liquid crystal display

2. Operator control keys

3. Auto/manual mode LED indication

Rear facia

4. Mounting clamps

5. 2 x two part, screw terminal blocks, 1 – 20 and 21 - 30

6. RS232 communication port (RJ11 connector)

7. (AS732 only) RS485 comms ports (2 x RJ45 connectors)

FRANK W. MURPHY LTD.

Church Rd, Laverstock,

Salisbury, SP1 1QZ, United Kingdom

tel: +44 1722 410055

fax: +44 1722 410088

email: sales@fwmurphy.co.uk

web: www.fwmurphy.co.uk

FW MURPHY

PO Box 470248

Tulsa, Oklahoma 74147, USA

tel: +1 918 317 4100

fax: +1 918 317 4266

email: sales@fwmurphy.com

web: www.fwmurphy.com

In order to consistently bring you the highest quality, full featured products, we reserve the right to change our specifications and designs at any time.

MURPHY, the Murphy logo, are registered and/or common law trademarks of Murphy Industries, Inc. This document, including

Product Discontinued

Summary of content (6 pages)

PAGE 1
Autostart AS731/AS732 Generator Controller Installation Instructions mi6128 th revision G, 10 Sept 2007 catalogue section 75 Section A: Panel Installation and Wiring Please read the following information before installing. A visual inspection of this product for damage during shipping is recommended before installation. It is your responsibility to ensure that qualified mechanical and electrical technicians install this product. If in doubt, please contact your local Murphy representative.
PAGE 2
GENERAL INFORMATION (cont.) Anti-static precautions Product specification The AS731/732 features sensitive electronic components that may be damaged by static discharge.
PAGE 3
PANEL MOUNTING 150 2. 1. 30 (typ) 3. 92 FRONT FRONT 140 D B C nu ed (mm) A Working behind the panel front, fit the two mounting clamps to studs on the side of the case. Locate each clamp on to the front stud (B), compress the clamp by pressing on the screw (C) and push the clamp upwards to locate on to the rear stud (D). Each unit is mounted in the front of a control panel through a DIN standard cut-out, 140 mm wide by 92 mm high.
PAGE 4
ELECTRICAL CONNECTION (cont.) Output 1 (pins 7 and 8) is a volt free, normally open contact (see specification for rating info). The default program action is set for ‘generator contactor’ control. A typical wiring diagram is shown in the panel on page 5. Specific terminal functions are as follows:- Terminal block 1 - 20 Outputs 2, 3 and 4 (pins 9, 10 and 11) are semiconductor outputs.
PAGE 5
ELECTRICAL CONNECTION (cont.) the automatic crank release, load switching and voltage/frequency/speed tripping. 19 Magnetic pickup positive 20 Magnetic pickup negative These terminals allow engine speed to be measured using a magnetic pickup. Pickup positive and negative output terminals should be respectively connected to pins 19 and 20. (Note: where the pickup head is isolated from the pickup body and ground, polarity of connection is not usually important.
PAGE 6
ELECTRICAL CONNECTION (cont.) Communication ports RS232 communication RS485 MODBUS communication To the right of terminal block 1 – 30, an RJ11 telephone type connector enables RS232 communication between the Autostart and a PC running Murphy software AS7CN. Model AS732 has two additional RJ45 connectors for RS485 communications, located at the top right of the rear facia (above the RS232 port).