Emerson Bettis Q series Manuale utente

Installation Guide Bettis Q-Series

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

Installation Guide Integrated Control Modules

QC44 Intrinsically Safe

APPROVED

Bettis Q-Series Installation Guide

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

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

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.

Fig. 2.1 Check proper mounting before connecting air

supply and electrical wiring.

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.

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 alignment-

edge 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

Fig. 2.3 Alignment and mounting of control

module to actuator

IPT probe

Bettis Q-Series Installation Guide

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

3 Pneumatic connections

IMPORTANT

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

Pmax = 8bar/116Psi

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).

Fig. 3.1 Pneumatic connections

Single acting

Control

Module cover

1/4” BSP or

1/4” NPT

Double acting

1/4” BSP or

1/4” NPT

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 Operating full power available

up to 2000 meter (6000 feet).

Maximum rela-

tive humidity

80% for temperatures up to 31°C

(87.8°F) decreasing linearly to

50% relative humidity at 40°C

(104°F).

Mains supply

fluctuation up to ±10% of nominal voltage

Over voltage

category II

Pollution degree 2 (3 when the cover remains

closed)

Temperature see table 4.1

Control Module

Type Label

Terminals

Pilot valve

terminals

Switch terminals

Option: Manual

control

Fig. 4.1 Terminal connections behind cover.

Fig. 4.2 Earth wire connection

Lockable

Module cover

Option: Additional

manual control for

“Fail in Last Position”

Electrical entries:

3/4”NPT

or M20

1/2”NPT

or M20

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.

Bettis Q-Series Installation Guide

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

0.5W

Fig. 4.3 Default Pilot valve wiring connections

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.

Cable range:

0.2 - 2.5mm2or

30-12AWG

0.5W

Cable range:

0.2 - 2.5mm2or

30-12AWG

Fig. 4.4 Pilot valve wiring connections for

Fail in Last Position

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

Installation Guide Bettis Q-Series

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)

Type 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.

Wiring diagram:

- M = Mechanical

- G = Mechanical, gold contacts

Cable range : 0.2 - 2.5mm2or 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

Fig 4.5 Adjustable switch range and factory settings

-3° 15° 75° 93°

0° 90°

Contact Switch signal and adjustable

switch range

switch

Open

Switch

Rotation

Switched

Unswitched

Switch

operation

Normally

Open

Contacts

Signal

Open Close

Table 4.4 Maximum currents mechanical switches

Switch voltage M type switch G type switch

125 VAC 10 A (3 A1) 0.1 A 2

250 VAC 10 A (3 A1) -

30 VDC 0.5 A 0.1 A 2

125 VDC 0.5 A -

250 VDC 0.25 A -

Bettis Q-Series Installation Guide

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.

-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°

3mA

1mA

-3° 15° 75° 93°

0° 90°

3mA

1mA

≥ 3mA

≤ 1 mA

≥ 3mA

≤ 1 mA

Switch

operation

Open Switch

Unswitched

Switched

Rotation

Close Switch

Unswitched

Switched

Rotation

Fig 4.8 Switch characteristics 2-wire NAMUR

proximity switch

Fig 4.7 Switch characteristics 2-wire 230VAC

proximity switch

Switch signal and adjustable switch range

2-wire NAMUR proximity switch

-3° 15° 75° 93°

0° 90°

Switch Switch signal and adjustable

switch range

switch

Open

Switch

Rotation

Switched

Unswitched

Switch

operation

2-Wire 115V

proximity

switch

Signal

IMPORTANT

For hazardous area installations see instructions in

paragraph Chapter 11.

Table 4.5 2-Wire NAMUR proximity switches

Option code N

Type 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)

Installation Guide Bettis Q-Series

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

L- L+ 3

L- L+

Open

Wiring diagram:

- 2-Wire NAMUR proximity switches

Fig 4.9 Wiring diagram 2-Wire proximity switches.

Cable range : 0.2 - 2.5mm2or 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.

Bettis Q-Series Installation Guide

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

15°

max

15°

max

Open

5 Limit switch setting

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.

5.1 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.

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” after

a clock wise

rotation

Bottom 1, 2, & 3 Open position Close position

Top 4, 5, & 6 Close position Open position

Switch points

Closed

Factory settings

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