8
Commissioning
CAUTION: Before the actuator is electrically
operated ensure the travels cams and limit
switches are correctly adjusted. Refer to travel
cam and limit adjustment.
CAUTION: Before a three-phase supply
actuator is operated for the first time manually
operate the actuator to a mid travel position to
ensure phase rotation is correct.
Travel Cam & Limit Switches
Adjustment
The travel cams are set to control the open and closed
position of the valve. The position is set to stop the
travel of the actuator when the travel cams activate the
limit switch. Standard is two limit switches (LS1 and
LS2), one for open, one for closed.
LS1 & LS2 limit the maximum range by disabling the
electric motor. LS3 & LS4 are optional. They allow
external equipment to confirm that the valve has
reached the fully open and fully closed positions. The
travel cams are preset at the factory, when additional
adjustments are needed, follow items described below.
•
For plastic cam (as shown in picture A), refer to
‘Type 1 - Cam adjustment for plastic cam’
on
page 9 to adjust Cam.
•
For metal cam of ROM 1/A (as shown in picture B),
refer to
‘Type 2 - Cam adjustment for ROM1/A’
on page 10 to adjust Cam.
•
For metal cam (as shown in picture C), refer to
‘Type 3-cam adjustment for metal cam‘
on
page 11 to adjust Cam.
For ROM 1-6, the rotation direction of output shaft is
identical with position indicator shaft.
LS4:
Clockwise end of travel indication
LS3:
Anti-clockwise end of travel indication
LS2:
Clockwise end of travel
LS1:
Anti-clockwise end of travel
For ROM A, the rotation direction of output shaft
is reverse with position indicator shaft. The rotation
direction described below is the same as position
indicator shaft.
LS4:
Anti-clockwise end of travel indication
LS3:
Clockwise end of travel indication
LS2:
Anti-clockwise end of travel
LS1:
Clockwise end of travel
Caution: Ensure all power supplies are isolated
before removing actuator covers.
LS4
LS3
LS2
LS1
TC4
TC3
TC2
TC1
Picture A
Picture B
Picture C
LS4
LS3
LS2
LS1
TC4
TC3
TC2
TC1
LS4
LS3
LS2
LS1
TC4
TC3
TC2
TC1
