BSA BERNARD CONTROLS AQ SWITCH Series Guide de l'utilisateur
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AQ SWITCH
RANGE
Start Up Guide
Instructions de mise en service
SUG_17003 - Ind. A
Art : 5100466
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TABLE OF CONTENTS
1SAFETY ---------------------------------------------------------- 3
2PACKAGING, STORAGE AND MAINTENANCE-----------------3
Packaging
Storage
Maintenance
3ASSEMBLY ------------------------------------------------------- 5
Changing closing direction indication
4EMERGENCY HANDWHEEL OPERATION ---------------------- 6
5ELECTRICAL COMMISSIONNING ------------------------------- 6
5.1 Connection and preliminary tests
5.2 Position feedback potentiometer (OPTION)
5.3 TAM position transmitter (OPTION)
5.4 Heating resistor
6TRAVEL LIMIT SETTINGS------------------------------------- 11
Single cam setting
Cams and mechanical stops setting
7TORQUE LIMITING DEVICE (AQ25 / 30 / 50 only) -------- 14
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4
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15
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1SAFETY
This device complies with current applicable safety standards.
Installation, maintenance and useofthis unitrequire a skilled and
trained staff.
Please carefully readthis whole document before mounting and
starting-up the actuator.
2PACKAGING, STORAGE AND MAINTENANCE
Packaging
AQ actuators are delivered in a cardboard box of a size equivalent to
the actuator and sit in a cardboard wedge.
Storage
Actuators should be stored under a shelter, in a clean and dry place
and protected from wide temperature variations.
•Avoid placing the actuator directly on the floor.
•Check that plugs on cable entries are correctly tightened.
•Check that cover screws are correctly tightened to ensure
weatherproof sealing of the cover.
AQ actuators include electrical components and lubricated gears.
Even with a weatherproof enclosure, oxidation, seizing and other
alterations may occur if actuatorsare not correctly stored.
What to check after storage
1. Visually check the electrical equipment.
2. Manually operate micro-switches, buttons, selectors, etc., to
ensure their proper mechanical functioning.
3. Manually operate the actuator.
Heating element should be connected to power supply especially
if the storage place is wet (standard 230 VAC, except
otherwise specified).
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What to check on installed non-commissioned actuators
If you expect a long period between actuator mounting and electrical
wiring:
1. Visually check that cable entries and cover are tightly closed.
2. In case of outdoor installation, cover the unit with a plastic
protective film.
Actuators equipped with electronic components
Long term storage ofelectronic components which are notin service
increases the risk of malfunction. This is not advisable.
If a long term storage is absolutely necessary, westrongly
recommend a revision ofthe electronic boards inour factory
before actuatorusage.
Maintenance
This actuator features lifetime lubrication. While the device is
correctly mounted and sealed, nospecific maintenance is required.
Test once a year themotor operation and makesure that the
electrical compartment isfree from condensation.
If it operates in awet atmosphere, this actuatorincludes an anti-
condensation heater to avoid condensation build-up.
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3 ASSEMBLY
Actuator shouldbe attached directly tothe valve using proper bolts
or via a proper interface.
After assembly, the actuator can operate in any position.
However:
•do not lift the actuator by the handwheel to avoid damage on
internal gearing
•cable glands must not be oriented upwards
(loss of water
tightness)
Changing closing direction indication
As a standard, AQ actuator is configured to close clockwise. If the
actuator must close counter-clockwise, you can change
orientation ofthe position indicator cap.
Standard indicator orientation
for clockwise closing
Reverse indicator orientation
for counter-clockwise closing
How to change cap orientation
1. Disassemble the cover then the cap.
2. Turn the cap 90°.
3. Reassemble the cap then the cover.
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4EMERGENCY HANDWHEEL OPERATION
AQ actuators feature a handwheel for emergency operation.
To avoid potentially harmful turning protruding parts during
electrical operation, AQhandwheels feature afoldable handle: you
can fold it duringelectrical operation and unfold it if you need to
operate the actuator manually.
5ELECTRICAL COMMISSIONNING
Connection and preliminary tests
8- Capacitor
7- Switches board
6- Torque limiter
5- Motor
4– Heating resistance
3- Cams
2- Terminal block
1- Position indicator
Actuator and its components are wired to internal terminal blocks.
To proceed to the wiring, remove the cover and pass the cables
throughthe M20 cable entries or ¾” NPTcable entries
(depending onorder).
Please refer to the wiring diagram enclosed for terminal numbering.
Both thermal protector and torque limit switches must be integrated
into yourcontrol system inorder toprevent potential damage to the
actuator or valve.
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What to check after wiring
Once actuator wiring is completed,please check the following:
1. Make sure that power supply voltage matches information on
the sticker on the side of the actuator.
2. Check that all connectors or cable glands are correctly
tightened.
3. Manually drive the valve to a mid-travel position.
4. Electrically operate counter-clockwise rotation and check that
the motor rotates in the right direction.
5. Manually press on the counter-clockwise travel limit switch
then the motor should stop.
6. Repeat steps 4 and 5 for clockwise direction.
•If any fault is detected at this stage, please check again the
whole wiring.
Position feedback potentiometer (OPTION)
The potentiometer used for actuator
position feedback isdriven by the travel
cam block system.
For clockwise closing:
•0% position indicates a closed valve
•100% position indicates an open valve.
Resistance value is measured between 16 and 17 terminals.
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Potentionmeter
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How to set the potentiometer circuit board
You can set the zero of the potentiometer with the 0% position
screw.Use a flat blade screwdriver toturn this screw.
1. Drive the actuator to the CLOSED position.
2. Untighten the positioner pinion blocking screw.
3. Adjust the potentiometer by turning its shaft so that the
resistance value exceeds 0 Ohm and regularly increases then
turn backwards to reach the closest value to 0 Ohm. Tighten
back the positioner pinion blocking screw.
4. Drive the actuator to the OPEN position and write down the
resistance value corresponding to the 100% position.
5. Come back to the CLOSED position and check that the
resistance shows a repeatable near zero value for the 0%
position.
Signal inversion
To change the signal variation direction, invert potentiometer wires
on the terminal block (e.g. for a connection on16/17/18,
invert 16and 18).
Position feedback potentiometer (Left) & TAM position transmitter (Right)
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TAM position transmitter (OPTION)
The TAM transmitter delivers a 4 to 20mA signal linearly proportional
to the angular position of the valve.
Electrical connections
To connect TAM, refer tothe wiring diagram supplied.
Filtered or stabilized power supply should be provided within the 12
to 32 VDC range. Maximumadmissible resistance valuesare given
in the following table:
DC supply
(volts)
Max. admissible resistance
(ohms)
12 150
24 750
32 1050
Signal direction inversion
The TAM transmitter, when supplied with a clockwise closing
actuator, provides a signal that rise from close position toopen
position.
If an opposite signal variation is required, simply move 2 jumpers on
the board near the potentiometer:
•direct signal: jumpers on 1-3 and 2-4
•reversed signal: jumpers on 1-2 and 3-4
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Position transmitter
0/4-20mA
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How to set TAM
1. Connect a milli-amp meter on terminal block.
2. Always start by adjusting the 4mA.
3. Drive actuator to the position corresponding to the 4 mA
(CLOSED position).
4. Untighten the potentiometer pinion blocking screw. Adjust the
potentiometer shaft so that the output current reaches a
minimum value.
5. Turn backwards until the current value regularly increases
then turn backwards again and stop as soon as the minimum
value determined here above is reached and tighten back the
potentiometer pinion blocking screw.
The potentiometer is then positioned at the very beginning of
its track.
6. Then, use the TAM adjustment screw marked as 0/4mA to
adjust the current to a value as close to the 4 mA as possible.
7. Drive actuator to the position corresponding to the 20 mA
(open position).
8. Turn the screw marked 20mA in order to read exactly 20 mA
on the milli-amp meter.
9. Come back to the closed position and check that, for the 0%
position, the signal current shows a close to 4 mA and
repeatable value.
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Ce manuel convient aux modèles suivants
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Table des matières
