rotork CK Series Use And Installation Manual

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F
9.5.2 Set Position Limits
F OLS Indicator Window
G OLS Adjustment Screw
H Drive Clutch Shaft
I CLS Indicator Window
J CLS Adjustment Screw
CAUTION: The main power supply must be
maintained during the commissioning process for CKa,
CKra, CKc and CKrcactuators.
1) Move the actuator to the valve CLOSED position using the
handwheel.
2) Using a flat screwdriver, depress the Drive Clutch Shaft
and rotate to the “Set” position as shown on the switch
mechanism faceplate.
3) The CLS Adjustment Screw must now be rotated
to engage the closed limit switch inside the switch
mechanism. The CLS Indicator Window will show one of
four possible symbols. Refer to Figure 1 on page 22.
4) Depending on where the mechanism is in the cycle,
it is possible that the switch will be approached from
the wrong direction, in this case it is necessary to move
through the limit and approach it from the correct
direction. This avoids the need to wind through the
whole mechanism to reach the limit position. The correct
direction to approach the limit is shown by the arrow next
to the Adjustment Screw input.
5) It is necessary to confirm the switch has engaged correctly.
a. For CK Standard or CKR units, measure across the
appropriate terminals using a continuity meter –
12 and 13 for motor control and 14 and 15 for
indication feedback.
b. For CKA or CKRA units fitted with an Atronik control
module, confirm the closed limit status indicator
isilluminated.
c. For CKC or CKRC units fitted with a Centronik control
Module, confirm the position display shows the closed
limit symbol.
6) Using a flat screwdriver, depress the Drive Clutch Shaft
and rotate to the “Run” position as shown on the switch
mechanism faceplate.
7) Rotate the CLS and OLS Adjustment Screws a small
amount in both directions to re-engage the mechanism
drive. A click will be heard as the drive drops back into
engagement and the adjustment screws will no longer
move in either direction.
CAUTION: This must be done or the limit will be lost
when the actuator is moved.
G
H
I
J
CLSOLS
CLOSELIM
DEMO
Atronik close limit indication.
Centronik close limit indication.
9 Commissioning
Keeping the World Flowing
21

rotork CK Series Specifications

General

Brand	rotork
Model	CK Series
Category	Controller
Language	English