
Series 140
OPERATION
875067EA
Edition 14.07.2020
17/43
5.1.2
Pneumatically actuated
Valve is opened and closed pneumatically by a pneumatic drive.
Valve remains closed (N.C.) when solenoid valve for main cylinder is off.
5.1.2.1
Actuating main cylinder
1. To open valve, switch on solenoid valve for main cylinder.
2. To close valve, switch off solenoid valve for main cylinder.
5.1.2.2
Actuating auxiliary cylinder
This section only applies if using a valve with 3-position pneumatic actuator.
1. To move valve to intermediate position, switch on solenoid valve for auxiliary cylinder.
2. To move valve to open or closed position, switch off solenoid valve for auxiliary
cylinder.
Valve moves to either open or closed position after switching off the
solenoid valve for the auxiliary cylinder, depending if the solenoid valve for
the main cylinder is switched on or off.