Edwards PV10/16EK Manuale utente

C411-01-840

Issue C Original

Instruction Manual

PVEK Valves Electrical Service Kit

Description Item Number

Electrical Service Kit PV10/16EK, 110 V C41101805

Electrical Service Kit PV10/16EK, 240 V C41101806

Electrical Service Kit PV25EK, 110 V C41301805

Electrical Service Kit PV25EK, 240 V C41301806

Electrical Service Kit PV40EK, 110 V C41401805

Electrical Service Kit PV40EK, 240 V C41401806

This page has been intentionally left blank.

Edwards and the Edwards logo are trademarks of Edwards Limited.

Contents

C411-01-840 Issue C

Contents

Section Page

1 Introduction .......................................................................................1

1.1 Scope and definitions ................................................................................................... 1

1.2 Tools and equipment .................................................................................................... 1

1.3 Replace the printed circuit assembly ................................................................................. 1

1.4 Disposal ....................................................................................................................2

For return of equipment, complete the HS Forms at the end of this manual.

Illustrations

Figure Page

1 Printed circuit assembly ................................................................................................ 3

Associated publications

Publication title Publication number

Vacuum pump and vacuum system safety P400-40-100

Trademark credits

Fomblin®is a registered trademark of Ausimont SpA.

LET-LOK®is a registered trademark of HAM-LET Group.

Swagelok™ is trademark of Crawford Fitting Company.

Viton™ is trademark of DuPont Dow Elastomers L.L.C.

dcs/7590/09/07

C411-01-840 Issue C

Edwards and the Edwards logo are trademarks of Edwards Limited.

Contents

Edwards and the Edwards logo are trademarks of Edwards Limited.

Introduction

C411-01-840 Issue C

1Introduction

1.1 Scope and definitions

This manual provides installation instructions for the replacement of the printed circuit assembly in the Edwards

range of PVEK valves. You must follow the instructions specified in this manual.

Read this manual before you attempt to install the printed circuit assembly. Important safety information is

highlighted as WARNING and CAUTION instructions; you must obey these instructions. The use of WARNINGS and

CAUTIONS is defined below.

CAUTION

Cautions are given where failure to observe the instruction could result in damage to the equipment, associated

equipment and process

The units used throughout this manual conform to the SI international system of units of measurement.

1.2 Tools and equipment

Pozidrive screwdriver

Earth continuity tester

Flash tester.

1.3 Replace the printed circuit assembly

Refer to Figure 1 for item numbers in brackets.

1. Isolate the valve from the electrical supply.

2. Undo the six screws (5) and remove the electrical box cover (1).

3. Pull out the circuit board retainer (4).

4. Remove the wires from the circuit board and dispose of the old circuit board according to Section 1.4.

5. Pass the three coil wires upwards from under the replacement circuit board through the cut-out to the right of

pin 'O' and connect the coil wires to the correct pins on the circuit board:

WARNING

Warnings are given where failure to observe the instruction could result in injury or death to

people.

WARNING

Replacement of the printed circuit assembly should only be performed by a service engineer or a

suitably trained and supervised technician.

WARNING

Do not remove the yellow-green earth wire attached to the valve body. This is required for safety

purposes.

C411-01-840 Issue C

Edwards and the Edwards logo are trademarks of Edwards Limited.

Introduction

Connect the violet wire to the pin 'V' in the centre of the circuit board.

Connect the black wire to the pin 'B' in the end of the circuit board.

Connect the orange wire to the pin 'O' in the side of the circuit board.

6. Insert the circuit board in the electrical box base (2); ensure that you do not trap the coil wires. Route the

yellow-green earth (ground) wire out of the box, through the cut-out in the end of the circuit board above pins

NC, NO, C, N and L.

7. Fit the signal wires and internal electrical supply wires from the electrical box cover (1) to the circuit board (3).

Fit the yellow wire to pin 'NO'

Fit the white wire to pin 'NC'

Fit the black wire to pin 'C'

Fit the brown wire to pin 'L'

Fit the blue wire to pin 'N'

8. Fit the electrical box cover (1); ensure that you do not trap the wires between the electrical box cover and the

electrical box base (2). Fit the six screws (5) to secure the electrical box cover in place.

9. Test the earth (ground) continuity of the assembled valve; the continuity between the cable earth (ground) and

the valve body must be less than 0.1 W.

10.Flash test to 2.5 kV d.c. the following items:

Six screws (5) which secure the electrical box cover (1) to the electrical box base (2) to ensure no wires have

become trapped.

The three terminals to the position indicator.

The electrical supply socket retaining screw (6).

The position indicator socket retaining screw (7).

1.4 Disposal

Dispose of the printed circuit assembly in accordance with all local and national safety and environmental

requirements.

Edwards and the Edwards logo are trademarks of Edwards Limited.

Introduction

C411-01-840 Issue C

Figure 1 - Printed circuit assembly

1. Electrical box cover

2. Electrical box base

3. Circuit board

4. Circuit board retainer

5. Screws x 6

6. Electrical supply socket

retaining screw

7. Position indicator socket

retaining screw

8. PIN NC

9. PIN NO

10.PIN C

11.PIN N

12.PIN L

13.PIN V

14.PIN O

15.PIN B

C411-01-840 Issue C

Edwards and the Edwards logo are trademarks of Edwards Limited.

Introduction

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