9
Run the actuator electrically to the closed position until the required position is reached.
Turn the cam of the CLOSE limit switch (Figure 8, Pos. 1) with a suitable srew driver (4 mm blade width) anti-
clockwise until the micro switch is heard to click.
Run the actuator electrically to the open position until the required position is reached.
Turn the cam of the OPEN limit switch (Figure 8, Pos. 2) with a suitable srew driver (4 mm blade width) clockwise
until the micro switch is heard to click.
11.
Commissioning
Close the cover, re-install the handwheel.
Drive the valve to an intermediate position using the handwheel.
Switch the setting signal briefly between OPEN and CLOSE and ensure that the actuator operates in the correct
direction either. If necessary, reverse the setting signal for OPEN/CLOSE.
Drive the actuator in both directions, using the setting signal until the limit switch cuts-off. Ensure that the limit
switch positions are correct. If necessary re-adjust the limit switches.
12.
Maintenance
The actuators are maintenance-free if used under the operating conditions as stated in the data sheet. The
gearboxes are lubricated for lifetime and do not require further lubrication.
Caution !
During maintenance and repair the actuator must not be operated
electrically.
12.1
Cleaning
The actuators should be cleaned dryly.
12.2
Spare parts
Defective actuators should be returned to our works in Bad Dürkheim, Germany, or to our representatives, for
evaluation of failures and repair.
13.
Appendix
13.1
Technical data and accessories
Please refer to the actuator data sheets for technical data.
Various auxiliaries are available in order to adapt the actuators to the various service conditions. A list of auxiliaries
for each actuator type is shown on the actuator data sheet.
Mounting and start-up instructions are available separately for each accessory.
Standard switches with silver contacts are suitable for currents 100 mA to 5 A at voltages in
the range of 24 V to 230 V AC/DC. For lower power up to 0,12 VA (0,1 mA to 100 mA at 1 V to
24 V AC/DC) we recommend switches with gold contacts (2WE Gold).
