Installation, Operating & Maintenance Instructions

Series 64, DN 63-400 (I.D. 21/2" - 16")

VAT Vakuumventile AG, CH-9469 Haag, Switzerland

Tel +41 81 771 61 61 Fax +41 81 771 48 30 CH@vatvalve.com www.vatvalve.com

219034EM

2013-08-27

9/19

2.2.6

Electrical connection

Verify that mains voltage matches voltage stated on the solenoid! Sockets for position indicator and solenoid are supplied

with the valve.

Do not touch electrical parts under voltage!

Electrical power may only be connected if:

valve has been installed into the vacuum system

moving parts cannot be touched

Wire solenoid and position indicator according to the following diagrams.

Solenoid

Position indicator for 3 positions

2

1

1

2

power

2

1

1

2

MV

MV

Lz

Lg

Lo

3

4

5

6

2

1

6

5

4

3

2

1

MV1 = solenoid for main cylinder (next to pneumatics)

MV2 = solenoid for auxiliary cylinder

Lo = position indicator «open»

Lg = position indicator «closed»

Lz = position indicator for intermediate position

Control logic for actuator on valve

seat side (A-side)

MV1

MV2

Control logic for actuator on valve

seat side (B-side)

MV1

MV2

open position

+

+

open position

+

+

intermediate position

+

-

intermediate position

-

+

closed position

-

-

closed position

-

-

+ = solenoid coil supplied with current

+ = solenoid coil supplied with current

- = solenoid coil not supplied with current

- = solenoid coil not supplied with current