Bettis Integrated Control modules QC41, QC42, QC43 Installation Guide

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Page 1

Installation Guide Bettis Q-Series

APPROVED

DOC.IG.BQC44.1 Rev. 1 February 2017

Installation Guide Integrated Control Modules

QC44 Intrinsically Safe

Page 2

Bettis Q-Series Installation Guide

February 2017 DOC.IG.BQC44.1 Rev. 1

1 Applicable Control modules:

QC44 - I.S. - Intrinsically Safe

Note:

This QC44 control module can be equipped with one or two pilot valves: * One pilot valve is default and suitable for normal

operation of double acting or spring return actuators.

* Two pilot valves are required for Fail in Last

Position function on double acting actuators.

The enclosures of both Weather Proof and Explosion Proof / Flame proof modules, have a IP66 or NEMA 4X, ingress protected rating.

2 Before starting

* Actuator must be isolated both pneumatically

and electrically before any (dis)assembly is begun.

* Installation, adjustment, putting into service,

use, assembly, disassembly and maintenance of the control module must be done by qualified personnel.

* Be sure that the actuator is correctly mounted

before connecting air supply and electrical wiring (see Installation & Operation Manual Bettis Q-Series Valve Actuator, DOC .IOM.Q.E)

* Check the module label for the right execution

(see figure 2.2)

* Check the type of actuator: single or double

acting (see figure 2.2).

* For mechanical installation of the module see

installation instruction leaflet DOC.BQC4.MTI.1, as shipped with the module.

2.1 Intended use

The Bettis Q-Series actuator is an integrated concept for the automation of quarter turn valves, dampers or other quarter turn applications. It consists of two basic parts (see figure 2.1):

1. Pneumatic actuator

2. Control Module The control module allows operation of the actuator and supplies position feedback signals.

Fig. 2.1 Check proper mounting before connecting air

supply and electrical wiring.

Control Module Type Label =

QC44..P1.. = Intrinsically Safe

Actuator Type Label = QS xxxx = Single acting (Spring Return) QD xxxx = Double acting

Fig. 2.2 Identification

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Installation Guide Bettis Q-Series

DOC.IG.BQC44.1 Rev. 1 February 2017

2.2 Mechanical alignment and mounting of the control module

The control module is equipped with an alignmentedge on top of the module. This allows easy alignment and mounting of the control module on to the actuator housing.

Procedure: (see gure 2.3)

1. First take care that both mating faces from the

actuator and control module are clean and free of dirt.

2. Check if the module has the required function

3. Remove the transparent film from the control

module.

4. Ensure seals are placed correctly.

5. Level the screws with the surface.

6. Place the alignment-edge (1) of the control

module at the top of the pneumatic interface.

7. Flip the module down taking care that the IPT

Probe (see fig 5; nr.2) on the actuator fits in the mating hole on the control module and loosely place the screws.

8. Tighten screws according force in sequence.

Tightening moments

The Control Module should be fastened by using an Allen key and applying the following tightening moments:

- Allen Key No 5: 6.1 to 6.6 Nm

(54 - 58.4 In.lbs)

Alignment-edge

IPT probe

Fig. 2.3 Alignment and mounting of control

module to actuator

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Bettis Q-Series Installation Guide

February 2017 DOC.IG.BQC44.1 Rev. 1

3 Pneumatic connections

IMPORTANT

Single acting

1 The actuator/valve combination can move

after connecting the air supply.

2 Ensure that the QC4x control modules are

mounted properly to the actuator to achieve good functioning and the required ingress protection, before connecting the air supply.

3 Check that the maximum supply pressure

= 8bar/116Psi

max

4 Be sure that the minimum required supply

pressure for the application is available at the actuator.

5 Take appropriate measures to prevent

condensation or moisture to entering the actuator or the control module. Condensation or moisture can damage these components and can result in failures.

6 The exhaust ports Ra and Rb on the module

(see gure 3.1) are shipped from the factory

with transport protection.

* If ingress protection IP66 or NEMA 4X is

required, appropriate connections must be used in exhaust ports Ra & Rb.

3.1 Operating media :

* Air or inert gasses. * Air filtered at 50 micron without condensate. * Dew point at -20˚C. * For subzero applications take appropriate

measures.

3.2 Single acting (spring return) or Double

acting actuator :

1 Remove the transport sticker from the air supply

(Ps).

2 Connect air supply to port (Ps).

Control Module cover

Double acting

Fig. 3.1 Pneumatic connections

Ps 1/4” BSP or 1/4” NPT

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Installation Guide Bettis Q-Series

DOC.IG.BQC44.1 Rev. 1 February 2017

4 Electric Connections

The QC44 Intrinsically Safe Control Module contains a pilot valve for controlling the actuator and switches for position feedback.

WARNING:

* If the Control Module is used in a manner not

specied by the manufacturer, the protection

provided by the equipment may be impaired.

* If required, mount earth wire (1) between top

(2) and stainless steel washer (3) of earth wire connection (see gure 4.2).

* Use and mount cable glands as required by

national or local legislation.

* If IP66 or NEMA 4X ingress protection is

required, then the electrical entries must be

tted with devices rated IP66 or NEMA 4X.

Electrical safety requirements:

Use In- and outdoor.

Altitude

Maximum relative humidity

Mains supply fluctuation Over voltage category

Pollution degree

Temperature see table 4.1

Operating full power available up to 2000 meter (6000 feet). 80% for temperatures up to 31°C (87.8°F) decreasing linearly to 50% relative humidity at 40°C (104°F).

up to ±10% of nominal voltage

2 (3 when the cover remains closed)

Caution! :

Risk of electric shock

* Installation, adjustment, putting into service,

use, assembly, disassembly and maintenance of the control module is strictly reserved to

qualied personnel.

* Do not attempt to install or repair any electric

device without shutting off incoming power.

Terminals

Lockable Module cover

Electrical entries:

3/4”NPT or M20

1/2”NPT or M20

Switch terminals

Control Module Type Label

Pilot valve terminals

Option: Manual

control Option: Additional manual control for “Fail in Last Position”

Fig. 4.1 Terminal connections behind cover.

Fig. 4.2 Earth wire connection

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Bettis Q-Series Installation Guide

February 2017 DOC.IG.BQC44.1 Rev. 1

4.1 Connecting Pilot valve(s)

The Control Module can be equipped with one or two pilot valves: * One pilot valve is default and suitable for normal

operation of double acting or spring return actuators

* Two pilot valves are required for Fail in Last

Position for double acting actuators.

IMPORTANT

For hazardous area installations see instructions in Chapter 11.

1. Before connecting the pilot valve, check the voltage on the control module label.

2 Remove control module cover (see figure 4.1). 3 Guide the cable(s) through the electrical

entry(ies).

- Use and mount cable glands as required by

national or local legislation.

4 For normal operation, make the electrical

connections as shown in figure 4.3.

For double acting actuators with Fail in

Last Position function, make the electrical connections as shown in figure 4.4

5 Mount the control module cover to the housing

(see figure 4.1) or continue with chapter 5. Take care that the cover seal is in place to comply to dust and water tightness according to IP66 or NEMA4X.

6 Lock the cover in position by turning the lock

screw in, until it blocks.

4.1.1 Tools

Table 4.1 Tool table

For terminals Screw driver 0.6 x 3.5 Cover lock screw Allen key nr 2

4.1.2 Typical functional ratings Pilot Valve

The pilot valve inside the Control Module sends the actuator to its open or closed position.

IMPORTANT

The below mentioned typical functional ratings are applicable for non-hazardous areas.

Table 4.2 Typical functional ratings Pilot Valve

Voltage Turn on V 16.4 ... 28

Turn off V 5.7

Current Turn on mA 25mA±10%

Turn off mA 7

Coil Resistance = 563 (Ta + 234 + 10)

254

0.5W

Cable range:

0.2 - 2.5mm2 or 30-12AWG

Fig. 4.3 Default Pilot valve wiring connections

0.5W

Cable range:

0.2 - 2.5mm2 or 30-12AWG

Fig. 4.4 Pilot valve wiring connections for

Fail in Last Position

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Installation Guide Bettis Q-Series

-3° 15° 75° 93° 0° 90°

DOC.IG.BQC44.1 Rev. 1 February 2017

4.2 Connecting Mechanical Feedback switches

IMPORTANT

The below mentioned typical switch specifications are applicable for non-hazardous areas.

1. Before connecting the switches, check the model code on the Control Module label.

QCXX.xxxMxx = Mechanical switches QCXX.xxxGxx = Mechanical switches

(gold plated)

2 Guide the cable(s) through the electrical

entry(ies).

- Use and mount cable glands as required by

national or local legislation.

3. Make connections as shown in figure 4.6 and table 4.3/4.4

4. Mount the Control Module cover. Take care that the cover seal is in place to comply to dust and water tightness according to IP66 or NEMA4X.

IMPORTANT

For hazardous area installations see instructions in Chapter 11.

Table 4.3 Mechanical switches

Option code M Option code G (gold contacts) Typ e Mechanical Voltage M: 277 VAC or 250VDC (maximum)

G: 125 VAC or 30VDC (maximum) Contacts NO and NC Temperature See table 4.1

Notes:

1. The mechanical (M-type) switches are rated for 3 A with inductive load.

2 The mechanical (G-type) switches have gold

contacts. For applications where the benefits of gold contacts are required, the maximum current is 0.1 A.

Table 4. 4 Maximum currents mechanical switches

Switch voltage M type switch G type switch

125 VAC 10 A (3 A1) 0.1 A

250 VAC 10 A (3 A1) 30 VDC 0.5 A 0.1 A

125 VDC 0.5 A 250 VDC 0.25 A -

Contact Switch signal and adjustable

Normally

Open

Contacts

Switch

operation

Switched

Unswitched

Signal

switch range

switch

Rotation

Open

Switch

Fig 4.5 Adjustable switch range and factory settings

Wiring diagram:

- M = Mechanical

- G = Mechanical, gold contacts

Open Close

Cable range : 0.2 - 2.5mm2 or 30-12AWG

1 Wiring diagram shown, is applicable for actuators with

assembly code “CW”. For actuators with assembly code “CC” (reverse acting) the “Open” and “Closed” switch connections are also reversed.

2 Wiring diagram is shown in the actuators mid-stroke position.

Fig 4.6 Wiring diagram mechanical switches

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Bettis Q-Series Installation Guide

-3° 15° 75° 93°

0° 90°

3mA

1mA

-3° 15° 75° 93°

0° 90°

3mA

1mA

≥ 3mA

≤ 1 mA

≥ 3mA

≤ 1 mA

-3° 15° 75° 93° 0° 90°

February 2017 DOC.IG.BQC44.1 Rev. 1

4.3 Connecting 2-Wire proximity switches

IMPORTANT

The below mentioned typical switch specifications are applicable for non-hazardous areas.

1. Before connecting the switches, check the model code on the Control Module label.

QCXX.xxxNxx = 2-Wire NAMUR proximity 2 Guide the cable(s) through the electrical

entry(ies).

- Use and mount cable glands as required by

national or local legislation.

3. Make connections as shown in figure 4.9 and table 4.5.

4. Mount the Control Module cover. Take care that the cover seal is in place to comply to dust and water tightness according to IP66 or NEMA4X.

IMPORTANT

For hazardous area installations see instructions in paragraph Chapter 11.

Table 4.5 2-Wire NAMUR proximity switches

Option code N Typ e 2-wire inductive, normally closed Voltage 8 VDC nominal Output Unswitched: > 3mA

Switched: < 1mA Temperature See table 4.1 Compliant to DIN EN 60947-5-6 (NAMUR)

Switch

2-Wire 115V

proximity

switch

Switch

operation

Switched

Unswitched

Switch signal and adjustable

switch range

switch

Signal

Rotation

Fig 4.7 Switch characteristics 2-wire 230VAC

proximity switch

Switch

operation

Open Switch

Unswitched

Switched

Close Switch

Unswitched

Switched

Switch signal and adjustable switch range

2-wire NAMUR proximity switch

Rotation

3mA

≥ 3mA

1mA

≤ 1 mA

Open

Switch

-3° 15° 75° 93°

0° 90°

Rotation

Fig 4.8 Switch characteristics 2-wire NAMUR

proximity switch

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Installation Guide Bettis Q-Series

DOC.IG.BQC44.1 Rev. 1 February 2017

Wiring diagram:

- 2-Wire NAMUR proximity switches

L-

Open

Cable range : 0.2 - 2.5mm2 or 30-12AWG

1 Wiring diagram shown, is applicable for actuators with assembly

code “CW”. For actuators with assembly code “CC” (reverse acting) the “Open” and “Closed” switch connections are also reversed.

L+

L-

L+

Fig 4.9 Wiring diagram 2-Wire proximity switches.

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Bettis Q-Series Installation Guide

15°

max

15°

max

February 2017 DOC.IG.BQC44.1 Rev. 1

5 Limit switch setting

5.1 Factory settings

Mechanical stroke : 90°±0.5° (Actuator setting) Switch points : ± 15° before each end of

stroke (open and closed position, see fig 5.1).

Adjustable range : See chapter 4.2 for the

applicable switch type.

Closed

Switch points

Open

Factory settings

Fig. 5.1 Adjustable range and factory settings

If required the mechanical stroke and the limit switch setting can be re-adjusted.

- For mechanical stroke adjustment please see document DOC.IOM.Q.E, available from www.emersonprocess.com/bettis

- For re-adjusting the limit switches, see procedure below.

5.2 Before re-adjusting the limit switches.

IMPORTANT

* Before mounting the actuator on the valve, be

sure that both the actuator and the valve have the same “open” or “closed” position.

* Set the Mechanical stroke before setting the

limit switches.

5.2.1 Pneumatic and electrical connections

Make pneumatic and electrical connections before adjusting the limit switch setting. See chapter 3 and 4.

5.2.2 Switch point setting and valve rotation direction.

The QC44 is equipped with non-intrusive switch adjustment. The adjustment screws are accessible behind a small shield in the front of the module (see fig 5.3). This means that the switch adjustment can be done without opening the module.

Normally valves are “Closed” after a clock wise rotation.

- In this case the top adjustment screw (see

fig. 5.3), sets the switch point of the “Closed” position and bottom adjustment screw sets the switch point of the “Open” position.

- When you have a valve that is “Open” after a

clock wise rotation, the position feedback will be reversed.

The table below indicates which re-adjustment screw and terminals are related to the “Open” or “Closed” switch point setting (see fig 16).

Table 5.1 Re-adjustment screws

Re-

adjust-

ment

screw :

Terminals

Valve movement

“Close” after

a clock wise

rotation

“Open” af ter

a clock wise

rotation

Bottom 1, 2, & 3 Open position Close position

Top 4, 5, & 6 Close position Open position

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Installation Guide Bettis Q-Series

DOC.IG.BQC44.1 Rev. 1 February 2017

5.2.3 Working principles Switch Operating Mechanism (see g 5.2)

The Switch Operating Mechanism is intend to operate the position feedback switches and allows adjustment of the switch points in the open and closed end positions. Factory setting is that the switches are activated 15° before the end of the open and closed stroke.

Switch Operation

The rotation of the actuators pinion operates the IPT device (1) which results in a linear movement. The linear movement of the IPT device operates lever (3). The lever amplifies the linear movement of the IPT device and operates the switch operating rod (5). Dowel pin (6) in the rod operated the levers of the open and closed switch elements (8 & 9).

The lever is of the “floating” type. When the IPT device operates the lever, it moves completely upwards until it meets the upper pivot block (4). At this point the lever will tip over and pull down the switch operating rod (5) and operates the bottom switch (7). When the IPT device moves back the springs cause the lever to move completely downwards until it meets the lower pivot block (2). At this point the lever will tip over and push up the switch operating rod (5) and operates the top switch (8).

Switch point adjustment

The position of the lower pivot block (2) can be changed by adjustment screw (10) and the position of the upper pivot block (4) can be changed by adjustment screw (9).

By adjusting the position of these pivot blocks the switch points will be changed.

The adjustment screws (9 & 10) can be found behind the shield (12) in front of the module. To access the adjustment screws loosen the screw (11) and rotate the shield (12) as shown.

Caution: Do not force the

adjustment screws 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. Pivot block (2) will be blocked at bottom if screw (10) is rotated too much counter clock wise.

2. Pivot block (3) will be blocked at top if screw (9) is rotated too much clock wise.

3. Pivot blocks (2&3) 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.

Fig. 5.2 Working principles Switch Operating Mechanism

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Bettis Q-Series Installation Guide

February 2017 DOC.IG.BQC44.1 Rev. 1

5.3 Re-adjustment of switch points

IMPORTANT

The procedure below assumes:

- That the actuator and control modules are according the factory settings.

If the switch setting is somehow lost or

forgotten, then consult paragraph 6.3 to set the switch point setting back to factory

setting.

- That the actuator / valve assembly is closed

after a clock wise rotation (see chapter 5.2).

Below procedure assures that the position feedback complies more accurately with the valve position and will set the switch point at approximately 4° before the end of the stroke.

To set and detect the switch point, use a multi meter, connected to the switch terminals, to measure a resistance change as applicable per switch type (see applicable wiring diagram in chapter 4.2). For the proximity switches, you can use a proximity switch tester.

Procedure (see g 5.3):

1. Remove cover (15) and loosen the screw (11) of the shield (12) and turn the shield down.

Closed Position:

2. Move the actuator/valve assembly to the closed position by removing the control signal from pilot valve terminal 8 and 9 (see § 4.1).

3. Turn top screw (10) counter clock wise (do not force the adjustment screw) until the switch trips to the “off state” (no signal).

4. 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.

5. Turn the screw minimal a 1/2 turn clock wise. The “closed” position switch point is now set.

Open Position:

6. Move the actuator to the open position by applying the applicable voltage to pilot valve terminal 8 and 9 (see § 4.1).

7. Turn bottom screw (9) clock wise (do not force the adjustment screw) until the switch trips to the “off state” (no signal).

8. 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 “open” position of the valve.

9. Turn the screw minimal a 1/2 turn counter clock wise. The “open” position switch point is now

set.

10. Turn the shield (12) back over the adjustment screws and fasten it with the screw (11) and mount the main round cover back in place.

Table 5.2 Tool table

Shield screw Cross slotted Phillips nr. PH2

Adjustment screws

0.6 x 3.5 or

Cross slotted Phillips nr. PH2

“Closed”

Switch point adjustment

“Open”

Switch point adjustment

Note:

360° rotation of adjustment screw is ±8° adjustment of switch point.

Fig. 5.3 Re-adjustment screws for “Open” and

“Closed” position feedback

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Installation Guide Bettis Q-Series

DOC.IG.BQC44.1 Rev. 1 February 2017

6 Trouble shooting

5.4 Check operation

5.4.1 Default (single) pilot valve

1 Connect pressure according chapter 3 and a

control signal to terminals (7) 8 and 9 according

§ 4.1 figure 4.3.

2 Actuator moves to “Open” position. “Open”

limit switch is activated and “Close” limit switch

is deactivated. 3 Remove voltage from terminals 9 and 8. 4 Actuator moves to “Close” position. “Close”

limit switch is activated and “Open” limit switch

is deactivated. 6 Mount the cover to the Control Module

(see fig. 4.1).

5.4.2 Dual pilot valve (Fail in Last Position)

operation

1. Connect pressure according chapter 3 and a

control signal to terminals (7) 8 and 9 according

§ 4.1 figure 4.4.

2. Actuator moves to “Open” position. “Open”

limit switch is activated and “Close” limit switch

is deactivated.

3. Remove voltage from terminals 9 and 8.

4. Actuator Stays in the “Open” position.

5. Connect pressure according chapter 3 and

a control signal to terminals (10) 11 and 12

according § 4.1 figure 4.4.

6. Actuator moves to “Closed” position. “Close”

limit switch is activated and “Open” limit switch

is deactivated.

7. Remove voltage from terminals 9 and 8.

8. Actuator Stays in the “Closed” position.

9. Mount the cover to the Control Module

(see fig. 4.1).

6.1 The “Open” and “Closed” position

feedback signals are reversed from the

actual valve positions.

1 Check if the actuator is correctly mounted to the

valve. Before mounting the actuator on the valve, the actuator and the valve should have the same “open” or ‘closed” position (see Installation

& Operation Manual Bettis Q-Series Valve

Actuator DOC.IOM.Q.E).

2 Some valves may be operated in such a way that

they are:

- “Open” after a clock wise rotation and

- “Closed” after a clock wise rotation.

3 Please see § 5.2 for setting the “Open” and

“Closed” position feedback signals

6.2 The actuator does not give (good) position feedback signals.

1 Check if the actuator is correctly mounted to the

valve.

2 Re-adjust the limit switch setting as per chapter

5.3

6.3 Factory setting of the switch points.

IMPORTANT

The procedure below assumes:

- That the actuator / valve assembly is closed

after a clock wise rotation (see also § 5.1).

- The control module is pneumatically and

electrically connected according chapter 3 and 4.

This procedure sets the switch point settings of the switches, back to the factory settings (±15° before each end of stroke), assuming a mechanical stroke of 90°±0.5° of the actuator.

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Bettis Q-Series Installation Guide

February 2017 DOC.IG.BQC44.1 Rev. 1

7 Maintenance

The Bettis Q-Series Control Modules are designed

Procedure (see g 5.3):

1. Remove cover (15) and loosen the screw (11) of the shield (12) and turn the shield down.

Closed Position:

2. Move the actuator/valve assembly to the closed position by removing the control signal from terminal 8 and 9 (see § 4.1).

3. 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).

4. 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.

Open Position:

5. Move the actuator to the open position by applying the applicable voltage to terminal 8 and 9 (see § 4.1).

6. 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).

7. 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.

8. Turn the shield (12) back over the adjustment screws and fasten it with the screw (11) and mount cover (15) back in place.

Important: Do not force the adjustment screws

During switch point adjustment, do not force the adjustment screws when you feel an obstruction. Forcing the adjustment screws can damage the cross head of the adjustment screw.

to operate without maintenance. For any further maintenance to the actuator see Installation & Operation Manual Bettis Q-Series Valve Actuator, DOC.IOM.Q.E or contact your local Bettis Q-Series representative. Installation, adjustment, putting into service, use, assembly, disassembly, maintenance and repair of the Control Module must be done by qualified personnel.

Note:

This product is only intended for use in large-scale fixed installations excluded from the scope of Directive 2011/65/EU on the restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS 2).

8 Optional Controls

8.1 Manual Control options

(see figure 8.1)

Location for 2nd Manual Control

Lock

45°

Unlock

Fig. 8.1 Local Manual Control options

For commissioning, emergency or maintenance purposes, the Bettis Q-Series can be supplied with one or two Manual Control options. These can operate the pilot valve(s) inside the module and as such operate the actuator, when there is air pressure available, but no control signal or power supply.

8.1.1 Mounting Manual Control

1 To add a Manual Control, remove the plug(s)

in front of the module and turn in the Manual Control.

- For normal operation the module should be fitted with one Manual Control.

- For Double Acting with a Fail-in-Last-Position function, two Manual Control can be fitted.

Off

Default location of Manual Control

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DOC.IG.BQC44.1 Rev. 1 February 2017

8.1.2 Manual Control operation

1 The Manual Control has a “Push & Lock”

function:

- To operate the Manual Control, use a screw driver, push to activate and release to deactivate the pilot valves.

- If required turn it 45°, to lock it in position and keep the actuator in its operated state.

2 In case of a Fail in Last Position configuration

with two manual controls:

- The manual control on the right side (default location) will pressurize the central air chamber and cause the actuator to rotate counter clock wise. For reverse acting Bettis Q-Series actuators (Assembly code CC) the actuator will rotate clock wise.

- The manual control on the left side (Location for 2nd Manual Control) will pressurize the end cap air chambers and cause the actuator to rotate clock wise. For reverse acting Bettis Q-Series actuators (Assembly code CC) the actuator will rotate counter clock wise.

- In order to operate one of the manual control, be sure the opposite manual control is de-activated and unlocked.

3 It is possible to rotate the screw multiple cycles.

The unit will than toggle every 90° between “locked” (1) and “unlocked” (0).

8.2 Speed control option

(see figure 8.2). The Bettis Q-Series can be supplied with a Speed Control option. One throttle is required for Spring Return actuators and up to two for Double Acting actuators. The speed control throttle controls the air flow in and out of an air chamber and as such limits

Spring Return: Top entry only.

Double Acting: Bottom and/or top entries.

Fig. 8.2 Speed control operation

the speed of the “Opening” and “Closing” stroke simultaneously.

8.2.1 Mounting Speed Control throttle(s):

1 Remove the plug(s) at the side of the module

and turn in the throttle (1). 2 Spring Return actuators: Use the top entry only. 3 Double acting actuators: Use both bottom and

top entries.

- For standard actuators, the top entry will throttle the closing stroke.

- For standard actuators, the bottom entry will throttle the opening stroke.

- For reverse acting actuators, the opposite strokes will be throttled.

8.2.2 Adjusting Speed Control throttle(s):

1 Remove the nut cap (2). 2 Clockwise rotation of the adjustment screw

reduces the speed.

3 Counter clockwise rotation of the adjustment

screw increases the speed.

4 Replace the nut cap.

9 Related Information

Other documents containing information related to the Bettis Q-Series Module include:

- Q1.604.10 Bettis Q-Series Control Module

- DOC.IOM.Q.E Installation Operation &

These documents are available, in multiple languages, for download from

www.emerson.com/bettis

data sheets

Maintenance Manual.

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Bettis Q-Series Installation Guide

February 2017 DOC.IG.BQC44.1 Rev. 1

11 Intrinsically Safe Electrical connections

11.1 Product QC44.xP1Nxx1

This section is about intrinsically safe connections for the QC44 control module with the N-type switches.

Terminals

Control Module Cover

Type Label

Fig 11.1 Product marking

ATEX Hazardous or Classied Location

0344 Certificate: Pending

II 1 G Ex iaT* II 1 G Ex tD A20 T80°C IP65

Hazardous or Classied Location

Intrinsically safe, Class I, II, III, Division 1,

Groups ABCDEFG T*, Type 4X

Ex ia IIC, T*, IP65

DIP A20 TA 80°C

Certificate: Pending

Temperature range T*:

Table 11.1 Temperature class

Connection

Type 1 40 60 60 Type 2 33 53 60 Type 3 12 32 49

Note:

The Connection Type refers to the entity parameters of the IS barriers used for connection of the switches, See Table 11.2. For double-acting Fail in Last Position, Only T4 to T1 are applicable with Maximum Ambient Temperature = 50˚C.

T ambient at T class:

T6 (°C) T5 (°C) T4 – T1 (°C)

11.1.1 ATEX Intended use

The Control Module QC44.xP1Nxx1 of the Bettis Q-Series pneumatic actuator is Group II category 1 equipment and intended for use in areas in which explosive atmospheres caused by mixtures of air and gases, vapours, mists or by air/dusts are likely to occur.

The pneumatic actuator part, together with the pneumatic Module part of the Bettis Q-Series pneumatic actuators is a Group II category 2 equipment and intended for use in areas in which explosive atmospheres caused by mixtures of air and gases, vapours, mists or by air/dusts are likely to occur. Therefore it may be used in (ATEX) classified Zones 1, 2 (Gasses) and/or 21, 22 (Dust).

11.1.2 Special conditions for safe use

• The material for the Control Module housing is an aluminum alloy. When the unit is used in a potentionally explosive atmosphere, requiring ATEX equipment category 1 G, the unit must be installed in such a way, that even in the event of rare incidents, an ignition source due to impact or friction between the enclosure and iron/steel is prevented.

• Only non-combustible fluids may be used in the pneumatic circuit.

Note: the surface temperature of the module has

been determined without a dust layer.

• Potential electrostatic charging hazard, clean only with a damp cloth - danger of propagating discharge.

• The apparatus shall be installed in such a way that the risk from electrostatic discharges and propagating brush discharges caused by rapid flow of dust is avoided.

• Precaution shall be taken to avoid danger of ignition due to electrostatic charges on the marking plate of the enclosure.

Table 11.2 QC44 Intrinsically Safe Entity Parameters

Circuit Terminal Ui Ii Pi Ci Li

Pilot

8 - 9 28Vdc 300mA 1.6W 0 0

valve

Type 1 1 – 2, 4 - 5 16Vdc 25mA 34mW 150nF 150uH Type 2 1 – 2, 4 - 5 16Vdc 25mA 64mW 150nF 150uH Type 3 1 – 2, 4 - 5 16Vdc 52mA 169mW 150nF 150uH

Feedback switches 1 & 2

Page 17

Installation Guide Bettis Q-Series

DOC.IG.BQC44.1 Rev. 1 February 2017

11.1.3 Dielectric strength

Control Module QC44 complies to the dielectric strength requirement according IEC- 60079-11

11.1.4 Wiring instructions QCQC44.xP1Nxx1

Intrinsically safe Control Module with the N-type switches.

Unclassified or Non

Hazardous Location

Terminal connections

Solenoid 1

Solenoid 2*

* Solenoid 2 only available with

Fail in Last Position function

Cable range:

Solid / Stranded wire: 0.2-2.5mm2 or 30-12 AWG

IS Approved Barrier

Hazardous or

Classified Location

L-

L+

L-

L+

Hazardous or

Classified Location

Unclassified or Non

IS Approved

Barrier

IS Approved

Barrier

Switch 1 Switch 2

Note:

* Use intrinsically safe approved barrier with signal levels according

EN60947-5-6 (NAMUR)

The barrier needs to limit the switch energy to the max. specified

values in table 11.2.

Hazardous Location

Table 11.3

Notes: CSA ATE X

Installation must be inaccordance

with:

2 Before operation:

3 Barriers:

4 Intrinsically safe equipement Must be CSA Approved Must be ATEX Approved

Barrier I.S. Entity Parameters must

meet the following conditions:

6 When multiple barriers are used:

Canadian Electrical Code,

The control module in combination with the pneumatic module must be mounted

Must be CSA approved and installed in an enclosure that meets the requirements of

Control equipment connected to the bar-

rier must not use or generate more than

Part1

properly on the actuator.

CEC part1.

250Vrms or Vdc.

The national wiring practices of the country

Must be certified by an European Notified

body and installed per manufacturer’s

of use

installation instructions.

Uo =< Ui Io =< Ii Po =< Pi

Co >= Ci + C cable Lo >= Li + L cable

* Each I.S. Circuit must use shielded, twisted pairs

* Cable insulation and shielding must extend to within paritioned area of terminals

Page 18

Bettis Q-Series Installation Guide

February 2017 DOC.IG.BQC44.1 Rev. 1

11.2 Product QC44.xP1*xx1

This section is about intrinsically safe connections for the QC44 control module with the switch types M and G where * is M or G

Type Label

Control Module Cover

Terminals

Fig 11.2 Product marking

ATEX Hazardous or Classied Location

0344 Certificate: Pending

II 1 G Ex ia IIC T4...T6

II 1 D Ex tD A20 T80°C

Hazardous or Classied Location

Intrinsically safe, Class I, II, III, Div. 1,

Groups ABCDEFG T4...T6, Type 4X

Ex ia IIC, T6, IP65

DIP A20 TA 80°C

Certificate: Pending

Therefore it may be used in (ATEX) classified Zones 1, 2 (Gasses) and/or 21, 22 (Dust).

11.2.2 Special conditions for safe use

• Only non-combustible fluids may be used in the pneumatic circuit.

Note: the surface temperature of the module has

been determined without a dust layer.

• Potential electrostatic charging hazard, clean only with a damp cloth - danger of propagating discharge.

• The apparatus shall be installed in such a way that the risk from electrostatic discharges and propagating brush discharges caused by rapid flow of dust is avoided.

• Precaution shall be taken to avoid danger of ignition due to electrostatic charges on the marking plate of the enclosure.

Table 11.4 QC44 Intrinsically Safe Entity Parameters

Temperature range :

T4...T6 @ Ta = -20°C...+50°C (-4°F...122°F)

11.2.1 ATEX Intended use

The Control Module QC44.xP1*xx1 of the Bettis Q-Series pneumatic actuator is Group II category 1 equipment and intended for use in areas in which explosive atmospheres caused by mixtures of air and gases, vapours, mists or by air/dusts are likely to occur.

Circuit Terminal Ui Ii Pi Ci Li

Pilot

8 - 9 28Vdc 300mA 1.6W 0 0

valve

M-

type

G-type 1 - 2 - 3,

Feedback switches 1 & 2

1 - 2 - 3,

30Vdc 300mA 1.2W 0 0

4 - 5 - 6

30Vdc 100mA 1.2W 0 0

4 - 5 - 6

11.2.3 Dielectric strength

Control Module QC44 complies to the dielectric strength requirement according IEC- 60079-11.

Page 19

Installation Guide Bettis Q-Series

DOC.IG.BQC44.1 Rev. 1 February 2017

11.2.4 Wiring instructions QC44.xP1Nxx1

Intrinsically safe Control Module with the switch types M and G where * is M or G

Unclassified or Non

Hazardous Location

Terminal connections Solenoid 1

Solenoid 2*

* Solenoid 2 only available with

Fail in Last Position function

IS Approved Barrier

Hazardous or

Classified Location

Hazardous or

Classified Location

Cable range:

Solid / Stranded wire: 0.2-2.5mm2 or 30-12 AWG

IS Approved

Barrier

IS Approved

Barrier

Switch 1 Switch 2

Unclassified or Non

Hazardous Location

Table 11.5

Notes: CSA ATE X

Installation must be inaccordance

with:

2 Before operation:

3 Barriers:

4 Intrinsically safe equipement Must be CSA Approved Must be ATEX Approved

Barrier I.S. Entity Parameters must

meet the following conditions:

Uo =< Ui Io =< Ii Po =< Pi

Co >= Ci + C cable Lo >= Li + L cable

6 When multiple barriers are used:

Canadian Electrical Code,

The control module in combination with the pneumatic module must be mounted

Must be CSA approved and installed in an enclo-

sure that meets the requirements of CEC part1.

Control equipment connected to the barrier

must not use or generate more than 250Vrms

Part1

properly on the actuator.

or Vdc.

The national wiring practices of the

country of use

Must be certified by an European Noti-

fied body and installed per manufac-

turer’s installation instructions.

* Each I.S. Circuit must use shielded, twisted pairs

* Cable insulation and shielding must extend to within paritioned area of terminals

Page 20

Bettis Q-Series Installation Guide

February 2017 DOC.IG.BQC44.1 Rev. 1

10 EC - Declaration of Conformity

ROC nr 8480

Legal representative entity for the European Union:

Emerson Process Management, Valve Automation

Asveldweg 11, 7556 BR Hengelo Netherlands

EC DECLARATION OF CONFORMITY

Issued in accordance with the

EMC Directive 2004/108/EC, Appendix 1

ATEX Directive 94/9/EC

above mentioned European Directives. Before the Control Module is put into operation, the machine into or onto which the Control Module will be installed, must comply with the stipulations of the machinery directive.

Product description : Bettis Q-Series Control module QC44 Serial number : Year of Construction :

ATEX DIRECTIVE

Types : QC44...P1*xx1... (x = M, G, or N) ATEX Certificate No. : Pending Marking :

Applicable standards : EN 60079-0 : 2006 EN 60079-11 : 2007 EN 60079-26 : 2007

Notified body :

II 1 G Ex ia IIC T4...T6 II 1 G Ex d+ib IIC T4...T6

EN 61241-0 : 2004 EN 61241-1 : 2004

Meander 1051, 6825 MJ Arnhem, The Netherlands

resp. II 1 D Ex tD A20 T80°C IP65 resp. II 1 D Ex tD A20 T80°C IP65

Rev. 0

EMC Directive

Types : QC44...P1*xx1... (* = M, G, or N) Applicable standards : IEC61326-1 :1998 NAMUR Recommendations : NE21 Note :

Directive 2006/95/EC

Signed:

_____________________________ Name:

S. Ooi Position:

Vice President, Rack & Pinion SBU & Global Marcom Emerson Process Management, Valve Automation Group Date:

2015-12-08 Place:NL

Houston TX, U.S.A.

Page 21

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