Switch Adjustment Instruction QC41, QC42 and QC43 Module
Q-series
1
15
2
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Setting the switch points from factory
settings to a more accurate setting.
July 2015
DO NO
T
DOC.SAI.QC4X.EN Rev. 0
3
Close
• Use these instructions when a more accurate setting of the
switch points is required after receiving the module from the
manufacturing site.
To more accurate setting of
switch points
±15°
90°
10
±4°
11
90°
Shield screw:
Cross slotted Phillips
nr. PH2
12
±15°
±4°
• Make pneumatic and electrical connections before adjusting
the limit switch setting. See chapter 3 and 4 of QC40 Installation guide.
• Remove main round cover (15) and loosen the screw (11) of the
shield (12) and turn the shield down.
5
4
al
i
r
dT
10
Ω
ry
a
in
l
e
i
F
Closed Position:
• Turn top screw (10) clock wise (do not force the adjustment
screw) until the switch trips to the “on state”.
• This position represents the actual, mechanical “closed” position
of the valve.
m
i
l
re
Ω
Pr
Open Position:
• Move the actuator/valve assembly to the open position.
• For normal double acting or spring return modules, apply the
control signal to pilot valve terminal 8 and 9.
• In case of a double acting “Fail-in-Last-Position” module, remove
the control signal to terminal 11 and 12 and apply the control
signal to terminal 8 and 9.
10
9
15
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O WAR NG! -
9
11
Ω
Open Position:
• Turn bottom screw (9) counter clock wise (do not force the adjustment screw) until the switch trips to the “on state”.
• This position represents the actual, mechanical “open” position of
the valve.
Ω
1/2 turn
Open Position:
• Turn the screw minimal a 1/2 turn counter clock wise.
• The “open” position switch point is now set.
12
• T
urn the shield (12) back over the adjustment screws and fasten it
with the screw (11) and mount the main round cover (15) back in
place.
All rights reserved. Copyright © Emerson Process Management. The information in this document is subject to change without notice. Updated data sheets can be obtained from our website www.Fieldq.com or from your nearest Valve Automation Center:
America’s: +1 813 630 2255 (fax +1 630 9449) Europe: +31 74 256 10 10 (fax +31 74 291 09 38) Asia/Pacific: +65 626 24 515 (fax +65 626 80 028)
Copyright © 2008 Emerson Electric Co.
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i
t
ta
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9
7l
a
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dT
m
eli
1/2 turn
Closed Position:
• Turn the screw minimal a 1/2 turn clock wise. The “closed” position switch point is now set.
ry
a
in
Cross slotted Phillips
nr. PH2
Closed Position:
• Turn top screw (10) counter clock wise (do not force the adjustment screw) until the switch trips to the “off state” (no signal)..
Open
10
P
8
Closed Position:
• Move the actuator/valve assembly to the closed position.
• For normal double acting or spring return modules, remove the
control signal from pilot valve terminal 8 and 9.
• In case of a double acting “Fail-in-Last-Position” module, apply a
control signal to terminal 11 and 12 and remove the control signal
from terminal 8 and 9.
6
t
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e
um
c
o
D
n
o
i
at
Adjustment screws
0.6 x 3.5 or
Ω
DO NO
T
Factory setting of
switch points
9
Ω
Adjustment screws
0.6 x 3.5 or
Cross slotted Phillips
nr. PH2
Open Position:
• Turn bottom screw (9) clock wise (do not force the adjustment
screw) until the switch trips to the “off state” (no signal).
CAUTION: DO NOT FORCE THE ADJUSTMENT
SCREWS (9 & 10) WHEN RESISTANCE IS FELT.
During adjustment there are three situations that can damage the
adjustment screw head and internal mechanisms when forcing the
adjustment screws.
1. When adjustment screw (10) is rotated too much counter clock
wise.
2. When adjustment screw (9) is rotated too much clock wise.
3. When the adjustment screws (9 & 10) are rotated too much in
the direction according to their related arrows.
Situation 1 and 2 may happen in combination with situation 3.
Important
• If the switch adjustment screws block or it is unknown what
the swith point setting is, use the instructions as shown at
the back of this page.
Switch Adjustment Instruction QC41, QC42 and QC43 Module
Q-series
DOC.SAI.QC4X.EN Rev. 0
• R
emove main round cover (15) and loosen the screw (11) of the
shield (12) and turn the shield down.
m
i
l
re
P
9
n
o
i
at
t
n
e
um
c
o
D
Close
4
6
10
3
7
9
2
11
1
3
ry
a
in
Ω Max.
m
20x
i
l
e
r
a
i
r
dT
l
e
i
F
10
10
Adjustment screws
0.6 x 3.5 or
Closed Position:
• Move the actuator/valve assembly to the closed position.
• For normal double acting or spring return modules, remove the
control signal from pilot valve terminal 8 and 9.
• In case of a double acting “Fail-in-Last-Position” module, apply a
control signal to terminal 11 and 12 and remove the control signal
from terminal 8 and 9.
Closed Position:
• Turn top screw (10) counter clock wise maximum 20 turns, (do not
force the adjustment screw) until the switch trips to the “off state”
(no signal).
7
6
Ω
1 3/4
turn
Closed Position:
• Turn top screw (10) clock wise 1 3/4 turn (do not force the adjustment screw).
The “closed” position switch point is now set to factory setting.
8
15
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9
11
Max.
20x
Open Position:
• Turn bottom screw (9) clock wise maximum 20 turns, (do not force
the adjustment screw) until the switch trips to the “on state” (no
signal).
Ω
Cross slotted Phillips
nr. PH2
P
n
e
m
u
c
o
D
n
o
i
t
ta
12
4l
9
Open Position:
• Move the actuator/valve assembly to the open position.
• For normal double acting or spring return modules, apply the
control signal to pilot valve terminal 8 and 9.
• In case of a double acting “Fail-in-Last-Position” module, remove
the control signal to terminal 11 and 12 and apply the control
signal to terminal 8 and 9.
15
ED
GIZ
ER
Open
8
N WHEN E
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O WAR
!-
DO NO
T
DO NO
T
ry
a
in
12
ial
r
T
d
l
e
i
F
Shield screw:
Cross slotted Phillips
nr. PH2
10
5
2
11
5
During adjustment there are three situations that can damage the
adjustment screw head and internal mechanisms when forcing the
adjustment screws.
1. Pivot block (2) will be blocked at bottom if screw (10) is rotated
too much counter clock wise.
2. Pivot block (4) will be blocked at top if screw (9) is rotated too
much clock wise.
3. Pivot blocks (2 & 4) will interfere with each other, if the adjustment screws (9 & 10) are rotated too much in the direction according to their related arrows.
Situation 1 and 2 may happen in combination with situation 3.
ED
GIZ
15
N WHEN E
N
NI
PE
O WAR NG! -
ED
GIZ
ER
1
CAUTION: DO NOT FORCE THE ADJUSTMENT
SCREWS WHEN RESISTANCE IS FELT.
ER
• If the switch adjustFactory setting of
ment screws block or
switch points
±15°
it is unknown what the
swith point setting is,
use these instructions
90°
to set the switch point
back to the factory set±15°
tings. (±15° before each
end of stroke), assuming
a mechanical stroke of
90°±0.5° of the actuator.
• Make pneumatic and electrical connections before adjusting
the limit switch setting. See chapter 3 and 4 of QC40 Installation guide.
• If there is trouble with setting the Close Position, set Open
Position first (steps 5 to 7) and set the Close Position (steps
2 to 4) after Open Position is set.
DO NO
T
Setting the switch point back to factory
settings.
July 2015
Ω
1 3/4
turn
Open Position:
• Turn bottom screw (9) counter clock wise 1 3/4 turn (do not force
the adjustment screw)
• The “open” position switch point is now set to factory setting.
All rights reserved. Copyright © Emerson Process Management. The information in this document is subject to change without notice. Updated data sheets can be obtained from our website www.Fieldq.com or from your nearest Valve Automation Center:
America’s: +1 813 630 2255 (fax +1 630 9449) Europe: +31 74 256 10 10 (fax +31 74 291 09 38) Asia/Pacific: +65 626 24 515 (fax +65 626 80 028)
Copyright © 2008 Emerson Electric Co.
12
• Turn the shield (12) back over the adjustment screws and fasten it
with the screw (11).