Flowserve MX Electronic Actuator User Manual

USER INSTRUCTIONS

Limitorque MX Electronic Actuator

FCD LMENIM2306-06 - 10/13

Installation

Operation

Maintenance

Experience In Motion

Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

Contents

1 Important Notes 7 2 Quick Start 9

2.1 Calibrate – Position Limits 9

2.1.1 Entering the Setup Mode 10

2.1.2 Electrical Operation Feature 10

2.1.3 Handwheel Operation Feature 11

2.2 DDC/Modbus Option 13

2.3 Check the Settings 13

3 Installation and Operation 14

3.1 Preparing the Stem Nut 14

3.1.1 Type “B” Bases: Torque-only Applications 14

3.1.2 Type “A” Bases: Thrust-only Applications 16

3.1.3 Type “BL” Drive: Splined Drive Application 20

3.2 Mechanical Installation Onto Valve or Gearbox 20

3.2.1 Mounting (Type “B” Bases): Torque-only 21

3.2.2 Removal (Type “B” Bases): Torque-only 21

3.2.3 Mounting (Type “A” Bases): Thrust-only 21

3.2.4 Removal (Type “A” Bases): Thrust-only 21

3.3 Electrical Connections 22

3.3.1 Removing Terminal Cover 22

3.3.2 Terminal Compartment Documents 22

3.3.3 Sealing Cable/Conduit Entries 22

3.3.4 Recommended Terminal Connections 22

3.3.5 Termination of Cables 24

3.3.6 Cable Connections 24

3.3.7 Network Installations 24

3.3.8 Foundation Fieldbus Installation 28

3.3.9 Network Wiring – Proﬁbus DP/PA Installation 29

3.3.10 Network Wiring – DeviceNet 29

3.3.11 HART Installation 30

3.3.12 Replacing Terminal Cover 30

3.3.13 External Earth/Ground Connections 30

3.4 Terminal Block Shield Installation 30

3.5 Commissioning the Actuator 30

3.5.1 Default Conﬁguration Set 31

3.5.2 View the Existing Settings 32

3.5.3 Entering the Setup Mode 32

3.5.4 Setting Position Limits 33

3.6 Operating the MX Actuator 36

3.6.1 Manual Operation 36

3.6.2 Electrical Operation 36

3.6.3 Local Control 36

3.6.4 Remote Control 37

3.6.5 Local Indication 37

4 Customizing the Actuator 38

4.1 Changing the Existing Settings 38

4.2 Password Entry 41

4.3 New Password 41

4.4 Valve Setup 42

Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

4.4.1 Close Direction 42

4.4.2 Close Seating 42

4.4.3 Open Seating 42

4.5 Torque Switch Timer 43

4.5.1 Status 43

4.5.2 Torque Timer 43

4.6 Torque Setup 44

4.6.1 Close Torque Valve or Open Torque Valve 44

4.7 Position Setup 45

4.7.1 Set Position Limits for Electrical Operation 45

4.7.2 Set Position Limits for Manual Operation 45

4.8 Modutronic Option 47

4.8.1 Status 47

4.8.2 Proportional Band 47

4.8.3 Fail Position 47

4.8.4 Deadband 47

4.8.5 Polarity (20 mA) 47

4.8.6 Delay After Stop 48

4.8.7 4-20 mA Signal Range 48

4.8.8 Set High Reference 48

4.8.9 Set Low Reference 48

4.8.10 Modutronic LCD Display 49

4.9 DDC/Modbus Option 49

4.9.1 Status 49

4.9.2 Network Address 50

4.9.3 Protocol 50

4.9.4 Analog Scale 50

4.9.5 ESD Action 50

4.9.6 Proportional Band 51

4.9.7 Deadband 51

4.9.8 Offset 51

4.9.9 Move To 51

4.9.10 Comm Loss Delay 51

4.9.11 Comm Loss Action 51

4.10 FF Option 51

4.10.1 Status 52

4.10.2 Terminate Bus 52

4.10.3 Analog Scale 52

4.10.4 ESD Action 52

4.10.5 OPEN/CLOSE Mode 52

4.10.6 Proportional Band 52

4.10.7 Deadband 52

4.10.8 Comm Loss Delay 53

4.10.9 Comm Loss Action 53

4.11 PB Option 53

4.11.1 Status 54

4.11.2 PB DP Operation 54

4.11.3 Comm Loss Delay 55

4.11.4 Comm Loss Action 55

4.12 DN Option 56

4.12.1 Status 56

4.12.2 Baud Rate 56

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Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

4.12.3 Network Address 56

4.12.4 Analog Scale 56

4.12.5 ESD Action 56

4.12.6 Proportional Band 57

4.12.7 Deadband 57

4.12.8 Comm Loss Delay 57

4.12.9 Comm Loss Action 57

4.13 HART Option 58

4.13.1 Status 58

4.13.2 Multi-drop 58

4.13.3 Input Action 59

4.13.4 Fail Position 59

4.13.5 Polling Address 59

4.13.6 Save Settings 59

4.13.7 Change Prop/Deadband 59

4.13.8 ESD Action 59

4.13.9 Change clock 60

4.14 Status and Alarm Contacts 60

4.14.1 Status and Alarm Contact Default Settings 60

4.14.2 Status Function 61

4.14.3 Contact 61

4.14.4 Valve Position 62

4.15 Two-speed Timer (Optional) 62

4.15.1 Status 62

4.15.2 Start Position 62

4.15.3 Stop Position 62

4.15.4 Pulse Time – ON 62

4.15.5 Pulse Time – OFF 63

4.16 Analog Output 63

4.16.1 APT Polarity Option 66

4.16.2 ATT Polarity Option 66

4.17 Remote Mode 67

4.17.1 Local Control 67

4.17.2 LED Customization 68

4.18 ESD (Emergency Shutdown) Overrides 68

4.18.1 ESD Override 68

4.18.2 Inhibit 69

4.18.3 Local Command 69

4.18.4 Stop 69

4.18.5 Jammed Valve* 69

4.18.6 Lost Phase* 69

4.18.7 Overtorque* 70

4.18.8 Motor Thermostat 70

4.18.9 Oil Over Temperature 70

4.18.10 Two-speed Timer 70

4.18.11 Network ESD 70

4.18.12 Torque Switch Timer 71

4.19 Inputs 71

4.19.1 Input Standard Remote Control 71

4.19.2 Status 72

Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

4.19.3 Custom Input Mode #1 – Momentary ESD/PSESD (Optional) 72

4.19.4 Custom Input Mode #2 – Momentary ESD/CSE (Optional) 74

4.19.5 Custom Input Mode #3 – ESD Time Delay Relay 74

4.19.6 Custom Input Mode #4 – Multi-position mode (optional) 74

4.19.7 Limigard Controls 76

4.19.8 SIL Mode – Standard SIL (Optional) 76

4.19.9 SIL Mode – Enhanced SIL (Optional) 77

4.20 Monitor Relay 80

4.21 Diagnostic Reset 81

4.22 TAG Number 82

4.23 LCD Contrast 82

4.24 Torque Boost 82

4.25 Motor Thermostat 83

4.26 Change Valve Data 83

4.27 Change Port 84

5 Troubleshooting 85

5.1 View Diagnostics Routine 85

5.2 Troubleshooting Problems/Corrective Action 85

5.2.1 Actuator Fails to Operate 86

5.2.2 Jammed Valve Detected 86

5.2.3 Actuator Operates but Does Not Drive Valve 87

5.2.4 Valve Does Not Seat Correctly 87

5.2.5 Status Messages 87

5.3 View Diagnostics 90

5.4 View Hardware Status 90

5.5 View Motor Status 91

5.6 View Power Supply 91

5.7 View Identiﬁcation 92

5.8 View Torque Proﬁle 92

5.9 View Operation Log 93

5.10 View DNET Status? 94

6 Maintenance 96

6.1 Lubrication 96

6.1.1 Oil Capacities 96

6.1.2 Checking Oil Level 96

7 Regulatory Information 97

7.1 Special Conditions for Safe Use (denoted by X after the certiﬁcate number) for Atex and IECEx Applications 99

7.2 Statement of Compliance With Applicable European Directives 99

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Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

Figures

Figure 1.1 – MX-05 Actuator 7 Figure 2.1 – Electrical operation 11 Figure 2.2 – Handwheel operation 12 Figure 3.1 – B4 base 14 Figure 3.2 – B4E base 15 Figure 3.3 – Exploded view of B4/B4E base (MX-05 shown) 15 Figure 3.4 – B1 base 16 Figure 3.5 – Exploded view of B1 base 16 Figure 3.6 – A1 base 16 Figure 3.7 – Exploded view of A1/A1E base (MX-05/10/20/40 only) 17 Figure 3.8 – Exploded view of thrust base (MX-85 only) 19 Figure 3.9 – Exploded view of thrust base (MX-140/MX-150 only) 20 Figure 3.10 – Power terminal connector size limitations 23 Figure 3.11 – Terminal block rating; power terminals 23 Figure 3.12 – Control terminal connector size limitations 23 Figure 3.13 – View of terminal block 25 Figure 3.14 – Standard wiring diagram 25 Figure 3.15 – Removing outer plastic jacket 26 Figure 3.16 – Separating cable parts 26 Figure 3.17 – Stripping conductors and applying heat shrink tubing 27 Figure 3.18 – Ring tongue connectors 27 Figure 3.19 – Terminal block shield 30 Figure 3.20 – User network connection for loop topology/Typical for all two-wire network protocols 31 Figure 3.21– External earth/ground connection – housing 31 Figure 3.22 – View settings 33 Figure 3.23 – Position setup – electrical operation 35 Figure 3.24 – Declutch lever shows direction of engagement (MX-05 shown) 36 Figure 3.25 – Control panel 37 Figure 4.1 – Entering the setup mode 39 Figure 4.2 – Main menu selections 40 Figure 4.3 – Changing settings 40 Figure 4.4 – Password entry 41 Figure 4.5 – New password 42 Figure 4.6 – Torque Switch Timer 43 Figure 4.7 – MX Nameplate 44 Figure 4.8 – Torque setup 44 Figure 4.9 – Electrical operation 46 Figure 4.10 – Handwheel operation 46 Figure 4.11 – Modutronic option 48 Figure 4.12 – Modutronic signals 49 Figure 4.13 – DDC 50 Figure 4.14 – FF 53 Figure 4.15 – Proﬁbus DP 54 Figure 4.16 – Proﬁbus PA 55 Figure 4.17 – DN option 57 Figure 4.18 – HART 58 Figure 4.19 – Status and alarm contacts (Shown with optional boards needed) 61

Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

Figure 4.20 – Two-speed timers 63 Figure 4.21 – Change analog out 63 Figure 4.22 – Change analog out voltage – APT 64 Figure 4.23 – Change analog out current 64 Figure 4.24 – Change analog out voltage – ATT 65 Figure 4.25 – Change analog out current – ATT 65 Figure 4.26 – Remote mode 67 Figure 4.27 – Local control 67 Figure 4.28 – ESD overrides 69 Figure 4.29 – Custom input modes 73 Figure 4.30 – Inputs 75 Figure 4.31 – Inputs 76 Figure 4.32 – SIL control (Standard) 77 Figure 4.33 – SIL control (Enhanced) 78 Figure 4.34 – SIL control (Enhanced) 80 Figure 4.35 – Diagnostic reset 81 Figure 4.36 – TAG number 82 Figure 4.37 – LCD contrast 82 Figure 4.38 – Torque boost 83 Figure 4.39 – Motor thermostat 83 Figure 4.40 – Change valve data 84 Figure 4.41 – Change port and Bluetooth settings 84 Figure 5.1 – Initialize routine 89 Figure 5.2 – Diagnostic overview 90 Figure 5.3 – View hardware status 90 Figure 5.4 – View motor status 91 Figure 5.5 – View power supply 91 Figure 5.6 – View identiﬁcation 92 Figure 5.7 – View torque proﬁle 92 Figure 5.8 – View operation log 93 Figure 5.9 – View DNET status 94 Figure 7.1 - Typical IEC nameplate 101 Figure 7.2 - Typical ATEX nameplate 102

Tables

Table 3.1 - Hardware and torque for thrust base mounting 18 Table 3.2 – Terminal block rating; control terminals 24 Table 3.3 – Required ratings for external wires 24 Table 3.4 – Loop topology connections 27 Table 3.5 – Foundation ﬁeldbus connections 28 Table 3.6 – Proﬁbus cable speciﬁcations 29 Table 3.7 – DeviceNet cable speciﬁcations 29 Table 3.8 – Default conﬁgurations 32 Table 3.9 – LED indicators – default settings 37 Table 4.1 – Digital input terminals 79 Table 7.1 – EMC, EMI standards 100

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Figure 1.1 – MX-05 Actuator

Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

Piece Description

1 Handwheel

2 Declutch Lever (MX-05) 3 Oil Fill 4 Controls Cover 5 LCD 6 Control Knob 7 Ground Lug 8 Thrust/Torque Base 9 Conduit Entry 10 Terminal Compartment 11 Motor 12 Nameplate

Important Notes

• Please read this manual in its entirety before attempting to install or operate your MX actuator. A full understanding of the installation and operation options will assist you in installing the actuator in the most effective manner. Limitorque has designed the MX actuator for long life even in the harshest environments. Flexible control and protection options are provided to ensure the actuator meets your requirements.

• All actuator enclosures are sealed by O-rings, and cable entries are supplied with threaded plugs to protect the terminal compartment until the unit is wired. If the actuator cannot be installed immediately, it is recommended that it be stored in a clean, dry place, preferably in an area that is not subject to large ﬂuctuations in temperature.

• Disconnect all incoming power before opening any cover on the actuator. The user/operator must ensure that safe working practices are employed at all times and are in accordance with local or national standards that are enforced at the particular site.

• To install and commission the actuator, only the terminal compartment cover needs to be removed. See Figure

1.1, Item 10. Settings for commissioning the actuator are done externally; therefore, no other covers need to be

removed. The actuator was assembled in ideal dry conditions and the total sealing of the enclosure protects all electrical components against deterioration.

Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

NOTE: Removal of any cover, other than the terminal compartment cover, will invalidate the unit warranty. Exposure of actuator components to an environment that results in deterioration of internal components will also invalidate the unit’s warranty.

• During ﬁnal ﬁeld installation, ensure that all cable entries are correctly sealed in accordance with National Standards or Regulatory Authorities. All temporary transit plugs must be removed and any unused cable entries closed in an approved manner. See Section 3.3.3, Sealing Cable/Conduit Entries.

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Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

Quick Start

Quick Start provides step-by-step instructions for commissioning each MX actuator. This information is also available in Bulletin LMENIM2310, Quick Start-Up Instructions. These instructions are for the following:

• Position limits calibration – can be performed one of two ways:

1. Electrical operation: See Section 2.1.2, Electrical Operation Feature.

2. Handwheel operation: See Section 2.1.3, Handwheel Operation Feature.

• DDC operation: See Section 2.2, DDC Option.

• FF operation: See Section 4.10, FF Option.

• PB operation: See Section 4.11, PB Option.

• DeviceNet operation: See Section 4.12. DN Option.

When these Quick Start instructions are complete, the position limits will be set and the actuator will be ready for normal operation.

NOTE: The actuator has been conﬁgured with all customer-speciﬁed parameters and no further calibration should be necessary. If full valve data was not provided when ordering, or if changes are needed for parameters, see Sections 3.5 and 6, Commissioning the Actuator and Customizing the Actuator.

2.1 Calibrate – Position Limits

1. Install the MX actuator on the valve.

2. Refer to the nameplate for the correct main power supply voltage. Switch on the main power to the unit.

3. Turn the red knob to the STOP position. The “SET CLOSE POSITION LIMIT” message will be displayed. When the red knob is in “LOCAL” or “REMOTE,” the liquid crystal display (LCD) screen will read “SET POSITION LIMITS.”

4. Calibrate end position limits one of two ways:

• Electrically, using the control panel. See Section 2.1.2, Electrical Operation Feature.

• Manually, using the handwheel. See Section 2.1.3, Handwheel Operation Feature.

Once the position limits have been set, the screen message will indicate the valve position as a percentage of the valve opening.

While setting limit switches, place the red selector knob in the “LOCAL” position to permit the actuator to run open or closed in push-to-run mode (inching) only.

CAUTION: Extreme care must be taken as the valve approaches its end position.

The unit will not function with the red selector knob in the “REMOTE” position until both limit switches are set.

Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

The existing conﬁguration of the actuator/valve parameters may be viewed by entering the “SETUP” mode.

2.1.1 Entering the Setup Mode

1. Place the red selector knob in the “STOP” position.

2. Within 10 seconds, place the black control knob in the “YES” position, then the “NO” position, then again in the “YES” position (in quick succession—approximately one-two seconds).

3. The message “SETUP?” will appear in the LCD display for 10 seconds. If no setup action is taken within 10 seconds, the unit will reset.

4. Use the black control knob to answer “YES” or “NO” to the questions appearing in the display.

2.1.2 Electrical Operation Feature

This feature allows for quick and simple calibration. To set the position limits electrically, enter the “CHANGE SETTINGS” mode via the “SETUP” mode.

1. Enter the “SETUP” mode as detailed in Section 2.1.1, Entering the Setup Mode.

2. When screen prompt reads “CHANGE SETTINGS,” select “YES.”

3. The screen will display the “CHANGE SETTINGS” mode menu items. Select “NO” until screen displays “CHANGE POSITION SETUP.” User may select to set close limit ﬁrst or open limit ﬁrst.

4. Select “YES.” “CLOSE” or “OPEN VALVE - OK?” is displayed.

5. Place the red selector knob in the “LOCAL” position. Move the black knob in the intended direction. The LCD screens are shown in Figure 2.1.

6. When valve has reached desired position, return the red selector switch to “STOP” and complete calibration.

The position settings are now complete. The actuator will now function as ordered, and may be run electrically to inspect for correct operation.

CAUTION: On some valves, position limits could be set adjacent to each other, so be careful that the Close and

Open limits are set sufﬁciently apart to permit operation. If the limits are set adjacent of each other, an error message will be displayed: “KEEP OPEN(CLOSE) LIMIT?”

NO FURTHER MOVEMENT IS PERMITTED UNTIL THE ERROR IS CORRECTED. Should the User elect to proceed with the setting, an error will be displayed on the screen after re-booting

stating “IDENTICAL LIMITS”. THE ACTUATOR WILL NOT MOVE UNTIL THE ERROR IS CORRECTED.

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Figure 2.1 – Electrical operation

STO

SET CLOSE

POSITION LIMIT?

YES

CLOSE VALVE

OK ?

Switch to

LOCAL

“NO ” operates close direction

Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

CLOSE VALVE

RETURN TO STOP

STOP

CLOSE VALVE

OK ?

YES

SAVE CLOSE

LIMIT OK?

YES

IDENTICAL LIMITS

KEEP CLOSE LIMIT?

YES

SET OPEN

POSITION LIMIT?

SET POSITION

PRECISION?

YES

OPEN VALVE

OK ?

POSITION

XXX% OPEN?

POSITION

XXX.X% OPEN?

Switch to

LOCAL

“YES” operates open direction

YES

OPEN VALVE

RETURN TO STOP

YES

STOP

SETUP?

EXIT

SETUP?

OPEN VALVE

OK ?

YES

Enter “SETUP ” mode

100% OPEN

STATUS OK?

SAVE OPEN

LIMIT OK?

YES

IDENTICAL LIMITS KEEP OPEN LIMIT?

YES

NOTE 1: If open and close limits

are not identical

NOTE 2: If open and close limits

are identical

2.1.3 Handwheel Operation Feature

To set the position limits manually, enter the “CHANGE SETTINGS” mode via the “SETUP” mode.

1. Enter the “SETUP” mode as detailed in Section 2.1.1, Entering the Setup Mode.

2. When LCD reads “CHANGE SETTINGS?”, select “YES.”

3. The LCD will display the “CHANGE SETTINGS” mode menu items. Select “NO” until screen displays “CHANGE POSITION SETUP?”

4. Select “YES.” See Figure 2.2. Manually set position limits:

a. Close position limit

1. “SET CLOSE POSITION LIMIT?” is displayed.

2. Select “YES.” “CLOSE VALVE - OK?” is displayed.

3. Depress the declutch lever, and at the same time slowly rotate the handwheel until the clutch is fully engaged. Release the lever; the clutch will be retained in the handwheel mode by spring-loaded latches.

4. Ensure the valve is fully closed, then move the valve in the open direction for one handwheel turn to allow for coasting of the motor.

5. When the valve is in the desired position, select “YES” again. The LCD will read “SAVE CLOSE LIMIT OK?”

6. Select “YES” if the valve’s close limit position is correct. The close position limit is set.

b. Open position limit

1. “SET OPEN POSITION LIMIT?” is displayed.

2. Select “YES.” “OPEN VALVE - OK?” is displayed.

Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

STO

4. Ensure the valve is fully open, then move the valve in the close direction for one handwheel turn to allow for coasting of the motor.

5. When the valve is in the desired position, select “YES” again. The LCD will read “SAVE OPEN LIMIT OK?”

6. Select “YES” if the valve’s open position limit is correct. The open position limit is set.

7. Move the valve in the close direction. The open lamp should extinguish within one turn of the handwheel.

8. Move the valve back in the open direction and check that the open lamp illuminates just before the full open position is reached (approximately ½ to 1 turn).

9. If the calibration requires adjustment, select “NO” at the “SET CLOSE POSITION LIMIT?” prompt and repeat the “SET OPEN POSITION LIMIT?” routine.

10. Select “NO” to exit “POSITION SETUP?” or “YES” to return to “SET CLOSE POSITION LIMIT?”

CAUTION: On some valves, position limits could be set adjacent to each other, so be careful that the Close and

Open limits are set sufﬁciently apart to permit operation. If the limits are set adjacent to each other, an error

message will be displayed: “KEEP OPEN(CLOSE) LIMIT?” NO FURTHER MOVEMENT IS PERMITTED UNTIL THE ERROR IS CORRECTED. Should the User elect to proceed with the setting, an error will be displayed on the screen after re-booting

stating “IDENTICAL LIMITS”. THE ACTUATOR WILL NOT MOVE UNTIL THE ERROR IS CORRECTED.

Figure 2.2 – Handwheel operation

SET CLOS E

POSITION LIMIT?

SET OPEN

POSITION LIMIT?

SET POSITION

PRECISION?

YE S

CLOSE VALVE

YE S

OPEN VALVE

YES

POSITION

XXX% OPEN

YE S

OK ?

Declutch actuator; Rotate handwheel to

NO NO

“ CLOS E ” position limit

OK ?

Rotate handwheel to

“ OPEN ” position limit

SAVE CLOS E

YE S

SAVE OPEN

LIMIT OK?

SETUP?

YE S

YES

Enter “SETUP” mode

EXIT

SETUP?

YES

100%

STATUS OK

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Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

2.2 DDC/Modbus Option

The following instructions assume that all DDC option parameters are set with the exception of the address.

1. After setting position limits, remain in the “SETUP” mode. If not in the “SETUP” mode, enter the “SETUP” mode as detailed in Section 2.1.1, Entering the Setup Mode.

2. When LCD reads “CHANGE SETTINGS?”, select “YES.”

3. The LCD will display the “CHANGE SETTINGS” mode menu items. Select “NO” until screen displays “CHANGE DDC?” Select “YES.” LCD will display DDC menu items.

4. Select “YES” for each menu item until “DDC ADDRESS OK?” appears. Select “NO.”

5. Enter an address from one to 250 by toggling “NO” until the correct address is displayed. User may select to hold the knob in the “NO” direction and the number will automatically increment by one until the preferred address is reached.

CAUTION: The network address must be entered in accordance with the user address assignment sheet.

This assignment sheet should correspond to the contract speciﬁcations. The same address must not be used anywhere else in the same network.

The DDC address does not have to be set to exit the setup.

2.3 Check the Settings

1. Operate the valve to the fully “CLOSE” position. Verify that the “CLOSE” (default GREEN) LED illuminates just as the travel limit is reached, and the valve position is displayed as “0% OPEN.”

2. Operate the valve to the fully “OPEN” position. Verify that the “OPEN” (default RED) LED illuminates just as the travel limit is reached, and the valve position is displayed as “100% OPEN.”

Installation and Operation

3.1 Preparing the Stem Nut

The MX has two (2) basic base designs:

• Torque-only base, designated by a “B” preﬁx

• Thrust-only base, designated by an “A” preﬁx

Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

3.1.1 Type “B” Bases: Torque-only Applications

Standard B4/B4E Base

The standard MX actuator base is the B4 torque-only. It includes a mounting plate and steel torque nut, which may be machined to ﬁt a valve or gearbox. A B4E torque nut can be provided and may be installed to allow for extended stem acceptance.

NOTE: Some MX actuators are supplied with single piece drive sleeves that have been bored and keyed. These are typically mounted directly to gearboxes. The MX actuator maybe mounted in any position as long as the handwheel is accessible.

Figure 3.1 – B4 base

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Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

Retaining ring

Baseplate

Drive sleeve

Figure 3.2 – B4E base

Figure 3.3 – Exploded view of B4/B4E base (MX-05 shown)

MX base

Torque nut

Disassembly

1. Remove the retaining ring (B4 base) or spiral-wound ring (B4E base) that retains the torque nut in the drive sleeve.

2. Remove the torque nut. If the torque nut is difﬁcult to remove, insert a suitable device into the drive sleeve through bore and gently tap it loose from the handwheel end.

3. Machine the torque nut to suit the valve stem or gearbox input shaft (see LMENSS2326, MX Performance and Dimensions for maximum stem capacity). Ensure sufﬁcient clearance for a smooth, sliding ﬁt.

Reassembly

1. Clean the torque nut thoroughly and lightly grease.

2. Replace the torque nut in the drive sleeve. Ensure the torque nut meshes with the drive lugs.

3. Reﬁt the retaining ring (B4 base) or spiral-wound ring (B4E base).

Optional B1 Base (not available for MX-85, MX-140 and MX-150)

An optional torque base assembly may be added to allow for a greater stem acceptance. This base is supplied with a ﬁxed bore and key as deﬁned by ISO 5210.

Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

torque/thrust

Pilot, torque/thrust

Pipe plug

Disassembly

No disassembly is required since the torque nut has been machined to an international standard. Clean the bore and lightly grease.

Figure 3.4 – B1 base

NOTE: Fill base with a Lithium based EP0 grease.

Figure 3.5 – Exploded view of B1 base

Socket head cap screw (M8 x 20)

Torque nut (B1)

Bearing

Retainer, bearing

Thrust nut

assembly

Socket head cap screw (M4 x 8)

Socket head set screw

Housing,

Pipe plug

Washer (M4)

MX-05 B1

MX-40 B1

3.1.2 Type “A” Bases: Thrust-only Applications

Standard A1/A1E Base

The standard MX actuator thrust base is the A1, and may be bolted directly to the actuator. The thrust base contains a bronze alloy thrust nut that may be machined to suit the valve stem.

An A1E (extended) thrust nut can be provided and may be installed to reach shorter stems.

Figure 3.6 – A1 base

Disassembly – Units MX-05/10/20/40

Refer to Figure 3.7.

Disassembly of the main housing from the base may be recommended to allow the base to remain on the valve if the actuator must be removed for service.

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Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

Housing

Socket head cap screw

Thrust pilot

extended nut

Pilot removal

MX-10/20: Remove the screw and washer holding the valve pilot to the thrust base and remove pilot.

MX-40: Turn counterclockwise (CCW) and remove.

Thrust bearing and nut removal

1. Remove the ﬁrst set of thrust washers and bearing.

2. Remove stem nut.

NOTE: The thrust washers, bearing, and thrust nut may be removed at the same time. The second set of thrust washers and bearing does not have to be removed.

3. Machine the thrust nut to suit the valve stem. Ensure sufﬁcient clearance to avoid unnecessary wear and heating during operation.

Reassembly – Units MX-05/10/20/40

Refer to Figure 3.7.

1. Clean the thrust nut, washers, and bearing(s) thoroughly.

2. Slide second set of thrust washers and bearing in place if removed.

NOTE: Order of assembling thrust washers and bearing must be as follows: washer, thrust bearing, washer.

Pilot installation

MX-05/10/20: Slide pilot into thrust base assembly and secure with washer and screw. Tighten fully.

MX-40: Place pilot into thrust base and turn clockwise (CW) until pilot is tight.

NOTE: Fill base with Nebula EP 0, Conoco Conolith EP 00, Mobil SHC 632, Dynalife-L-EP0, Triton ELL, or Lithium based EP0 grease.

Disassembly – Units MX-85

Refer to Figure 3.8.

Disassembly of the main housing from the base may be recommended to allow the base to remain on the valve if the actuator must be removed for service.

Thrust base mounting plate removal

Remove the six socket head cap screws holding the valve mounting plate to the thrust base housing and remove mounting plate.

Figure 3.7 – Exploded view of A1/A1E base (MX-05/10/20/40 only)

Socket head cap

Thrust washer

Quad ring

Thrust Nut

Thrust washer

O-ring

Washer

Quad ring

Needle bearing

Thrust base

standard nut

Pipe plug

Thrust base

Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

Thrust bearing and nut removal

1. Remove the ﬁrst set of thrust washers and bearing.

2. Remove stem nut.

NOTE: The thrust washers, bearing, and stem nut may be removed at the same time. The second set of thrust washers and bearing does not have to be removed.

3. Machine the stem nut to suit the valve stem. Ensure sufﬁcient clearance to avoid unnecessary wear and heating during operation.

Reassembly – Units MX-85

Refer to Figure 3.8.

1. Clean the stem nut, washers, and bearing(s) thoroughly.

2. Slide second set of thrust washers and bearing in place if removed.

3. Install stem nut. Lubricate thoroughly.

4. Install ﬁrst set of thrust washers and bearing.

NOTE: Order of assembling thrust washers and bearing must be as follows: washer, thrust bearing, washer.

NOTE: Fill base with Nebula EP 0, Conoco Conolith EP 00, Dynalife-L-EP0, Mobil SHC 632, Triton ELL, or Lithium based

EP0 grease.

Thrust baseplate installation

Mount baseplate to thrust base housing and install the six socket head cap screws to the proper torque per Table 3.1.

Table 3.1 – Hardware and torque for thrust base mounting

Screw Size

M8 or 5⁄16 in. (8 mm) 12-14 16-19

M10 or 3⁄8 in. (9 mm) 25-30 33-40 M12 or ½ in. (13 mm) 40-50 53-67 M16 or 5⁄8 in. (16 mm) 90-100 122-135 M20 or ¾ in. (19 mm) 180-200 244-271

ft-lb N m

Torque

NOTE: Screw mounting torque for mounting thrust base to main housing or thrust baseplate to thrust base housing.

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Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

with standard nut

with extended nut

Socket head cap screw

Pipe plug

Figure 3.8 – Exploded view of thrust base (MX-85 only)

Thrust washer

Housing

Baseplate

Thrust bearing

Thrust washer

O-ring

Thrust nut

Quad ring

Socket head cap screw s

Thrust bearing

Quad ring

Section A-A View show n

Disassembly – Units MX-140/MX-150

Refer to Figure 3.9.

Disassembly of the main housing from the base may be recommended to allow the base to remain on the valve if the actuator must be removed for service.

Pilot removal

Remove the two screws and washers holding the valve pilot to the thrust base and remove pilot.

Thrust bearing and nut removal

1. Remove the ﬁrst set of thrust washers and bearing.

2. Remove stem nut.

NOTE: The thrust washers, bearing, and stem nut may be removed at the same time. The second set of thrust washers and bearing does not have to be removed.

3. Machine the stem nut to suit the valve stem. Ensure sufﬁcient clearance to avoid unnecessary wear and heating during operation.

Reassembly – Units MX-140

Refer to Figure 3.9.

1. Clean the stem nut, washers, and bearing(s) thoroughly.

2. Remove pipe plug.

3. Slide second set of thrust washers and bearing in place if removed.

4. Install stem nut. Lubricate thoroughly.

5. Install ﬁrst set of thrust washers and bearing.

6. Install pipe plug.

NOTE: Order of assembling thrust washers and bearing must be as follows: washer, thrust bearing, washer.

NOTE: Fill base with Nebula EP 0, Conoco Conolith EP 00, Dynalife-L-EP0, Mobil SHC 632, Triton ELL, or Lithium based

EP0 grease.

Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

Socket head cap screw

Pipe plug

standard nut

extended nut

Pilot installation

Slide pilot into thrust base assembly and secure with the two washers and screws. Tighten fully.

3.1.3 Type “BL” Drive: Splined Drive Application

Steel alloy splined nuts are provided to a standard involute spline category for rising and rotating stem valves per customer requirements. Disassembly and reassembly is the same as the B4 base and the torque nut. See Section 3.1.1, Type “B” Bases: Torque-only Applications.

Figure 3.9 – Exploded view of thrust base (MX-140/MX-150 only)

Housing

Thrust bearing

Thrust nut

Thrust pilot

O-ring

Washers

Thrust bearing

Thrust washers

Quad ring

Thrust washers

Socket head cap screw s

Pipe plug

Section A-A

View shown with

Section B-B

View shown with

3.2 Mechanical Installation Onto Valve or Gearbox

NOTE: Refer to MX Maintenance and Spare Parts bulletin (LMENIM2314) for more detailed instructions.

Before installing the actuator onto a valve or gearbox, check the following to ease installation:

• Verify that mounting ﬂange is suited dimensionally to mate with the actuator base. Ensure that it is perpendicular to the valve stem or gearbox input shaft.

• Ensure the stem nut mates with the valve stem or input shaft. For screwed nuts, it is advisable to run the stem nut down the entire length of the stem to check for tightness. Keyed or splined shafts should exhibit a smooth, sliding ﬁt with the key installed.

• Ensure there is adequate engagement of the stem nut with the valve stem or input shaft when mounted. Generally, the minimum length of engagement is 1.5 times the diameter of the stem.

• Verify that mounting studs or bolts are the correct length to suit the thickness of the mounting plate.

• Verify hardware speciﬁcations for English style:

• Socket head cap screw per ASTM A 574 and ANSI 18.3.

• Hex head cap screw per SAE J429 Grade 5.

• Verify hardware speciﬁcations for metric style: hex and socket head cap screws per Property Class 12.9.

• Clean and lubricate the valve stem or input shaft.

• Ensure adequate lifting facilities and slings are available at the installation site.

NOTE: Do not use the handwheel to lift the actuator.

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Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

3.2.1 Mounting (Type “B” Bases): Torque-only

Refer to Figures 3.1 - 3.5.

1. Ensure torque nut is secured inside actuator drive sleeve with retaining ring.

2. Lower actuator onto the valve or gearbox stem. Align the stem nut key and keyway with valve or gearbox stem key seat.

3. Verify that the actuator and valve mounting adapter ﬂanges mate correctly.

4. Secure the actuator to the valve mounting adapter with mounting bolts.

3.2.2 Removal (Type “B” Bases): Torque-only

Refer to Figures 3.1 – 3.5.

1. Remove the bolts that secure the actuator to the valve mounting adapter. If type B1 base is used in addition to the standard type B4 baseplate, you may leave the B1 base attached to the actuator and remove as a unit.

2. Lift the actuator from the actuator mounting adapter.

3.2.3 Mounting (Type “A” Bases): Thrust-only

Refer to Figures 3.6 – 3.9.

1. The following are two options for mounting the type A base actuator:

a. If the type A thrust base was removed from the valve mounting adapter, replace the thrust base onto the valve

mounting adapter. Ensure the thrust base stem nut has the lugs positioned upward to engage with the drive sleeve slots when the actuator is reinstalled. Rotate the bronze nut while holding the base steady.

b. If the thrust base is installed on the valve mounting adapter, proceed to step two.

2. Lower the actuator along the threaded valve stem and onto the valve mounting plate. Ensure the thrust base stem nut lugs properly engage and align with the drive sleeve slots.

3. Install the bolts to secure the actuator to the thrust base assembly.

3.2.4 Removal (Type “A” Bases): Thrust-only

1. Remove the bolts that secure the actuator to the thrust base assembly.

2. Remove the type A thrust base by removing the bolts that secure the actuator to the valve mounting adapter.

Leave the type A thrust base mounted to the valve mounting adapter until ready to remount the actuator. The thrust base will maintain valve position provided that the valve stem threads are locking.

3. Lift the complete actuator from the thrust base.

Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

3.3 Electrical Connections

Verify that the supply voltage details on the nameplate are correct for this installation. Setup is non-intrusive; therefore, remove only the terminal cover to make electrical connections and to commission the actuator.

WARNING: The removal of any other covers without Limitorque’s approval will void the warranty. Limitorque

will not accept responsibility for any damage or deterioration that may occur as a result of cover removal.

3.3.1 Removing Terminal Cover

Remove the terminal cover as follows:

1. Remove the four cover screws using a 6 mm hexagonal wrench.

2. Remove the cover. XP units have long-spigoted covers and two tapped holes 180° apart. If the XP cover is difﬁcult to remove, ﬁt two of the cover screws into the tapped holes in the cover ﬂange and jack out the cover. Take care to turn the screws by equal increments. Do not lever the cover off with a screwdriver, or similar object, since this may damage the ﬂamepath on an explosionproof unit or the O-ring seal and seating face.

3.3.2 Terminal Compartment Documents

The OEM and user installation kits, wiring diagram, and test report are contained in the terminal compartment or with the actuator. Do not place them in the terminal compartment when the electrical connections have been completed.

NOTE: This instruction does not apply to valve manufacturers or similar installers of the actuator onto a valve prior to shipping to site. It is important that these items are available at the ﬁnal destination site.

3.3.3 Sealing Cable/Conduit Entries

The sealing of cables and conduit entries should be done in accordance with National Standards or the Regulatory Authorities that have certiﬁed the actuators. This is particularly true for units that are certiﬁed for use in hazardous areas where the method of sealing must be to an approved standard and cable glands, reducers, plugs, and adapters must be approved and separately certiﬁed. All conduit entries should be sealed against the climatic conditions prevailing on-site, especially if temporary submersion is possible. All unused conduit entries should be sealed with threaded metal plugs. Plastic plugs are installed by Limitorque for shipping only and must not be used as permanent seals.

3.3.4 Recommended Terminal Connections

Power Terminals

Ring tongue connectors used on the power terminals should comply with the dimensions shown in Figure 3.10. For Additional information, consult terminal manufacturer.

Figure 3.11 details the allowable voltage and current parameters for the terminal block power terminals. Preload the M5 screws to 1.6-3.2 N m (1.2-2.33 ft-lb).

Control Terminals

Ring tongue connectors used on the control terminals should comply with the dimensions shown in Figure 3.12. For additional information, consult terminal manufacturer. Preload the M3 screws to 0.33-0.66 N m (0.25-0.50 ft-lb).

NOTE: Alternative manufacturers may be substituted only if dimensions are in accordance with Figure 3.12. NOTE: The use of spade terminals is not recommended for secure electrical connections.

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Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

3X M5 SCREW

3X M5 SPRING WASHER

54X M3 SPRING WASHER

54X M3 SCREW

FIGURE 3.13

THE USE OF THE SPRING WASHERS ARE REQUIRED

ON INCREASED SAFETY APPLICATIONS.

Figure 3.10 – Power terminal connector size limitations

MAX. THICKNESS = 1.6 mm

NOT TO

EXCEED 3.5

NOT TO

EXCEED 9.8

NOT TO

EXCEED 15

SPADE AND SNAP

TERMINALS

Figure 3.11 – Terminal block rating; power terminals

NOT TO EXCEED 6.5

TO BE SIZED FOR M5 SCREW

FLANGED

SPADE TERMINAL

Description L1 L2 L3

30 AMP 20 AMP 15 AMP

STD Rating

8 Awg/10 mm210 Awg/6 mm214 Awg/2.5 mm 600 VAC RMS 150 VDC

27 AMP 18 AMP 13.5 AMP Increased Safety Rating

8 Awg/10 mm210 Awg/6 mm214 Awg/2.5 mm

500 VAC RMS 150 VDC

Note: Ratings will be the same for L1, L2, or L3, e.g., if 10 Awg is selected, then L1, L2 and L3 will have the same limitations.

NOT TO EXCEED 15

RING TERMINAL

NOT TO EXCEED 9.6

TO BE SIZED FOR M5 SCREW

Figure 3.12 – Control terminal connector size limitations

NOT TO

EXCEED 7.6

NOT TO

EXCEED 5

SPADE AND SNAP

NOTE: All dimensions are in mm.

TERMINAL

MAX. THICKNESS = 1.0 mm

NOT TO EXCEED 4.0

TO BE SIZED FOR M3 SCREW

NOT TO EXCEED 5

RING TERMINAL

NOT TO EXCEED 8.2

TO BE SIZED FOR M3 SCREW

NOTE: Limitorque recommends the use of the following connector for optimum results: Thomas and Betts #RZ22-6.

NOTE: Alternative manufacturers may be substituted only if the dimensions are in accordance with Figure 3.12.

Table 3.2 lists the maximum allowable voltage and current parameters for the terminal block control terminals.

Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

Table 3.2 – Terminal block rating; control terminals

Low Voltage Row STD Rating Increased Safety Rating

1 points 1-16, 50 Volt 0.5 AMP AC RMS 0.45 AMP AC RMS 2 points 17-35, 125 Volt 0.5 AMP AC RMS 0.45 AMP AC RMS 3 and 4 points 36-54, 250 Volt 5 AMP AC RMS 4.5 AMP AC RMS

3.3.5 Termination of Cables

All terminations should be made with insulated ring terminals using the appropriate crimping tool. See Figures 3.10 and 3.11 for power terminal connection recommendations. See Figure 3.12 and Table 3.2 and 3.3 for control terminal connection recommendations.

3.3.6 Cable Connections

See Figure 3.14 for connection information.

1. Connect the main power supply cables, including the earth/ground wire using the M5 screws provided.

2. Attach the earth/ground wire to the separate screw on the inside of the terminal compartment.

3. Use the M3 screws installed in the terminal block to connect the control cables in accordance with the wiring diagram and the project speciﬁcation.

4. Ensure that all connections are tight, including any spare termination screws that have not been used.

NOTE: A “Customer Connection(s) Diagram” sticker is attached to the interior of the terminal compartment cover. This may be removed and user termination numbers inscribed adjacent to Limitorque’s terminal block numbers for ﬁeld connection reference. The diagram may also be used to assist in locating the terminal block positions. Service and factory contacts are contained on the sticker.

Certiﬁcation is based on the use of appropriately rated wire for the application. Installation shall be in accordance with the current issue of the applicable national and or local electric code or regulations.

Table 3.3 – Required ratings for external wires

Up to Use wire rated at least

40°C Ambient 75°C 55°C Ambient 90°C 60°C and 65°C Ambient

Note 1: Refer to unit nameplate.

105°C

3.3.7 Network Installations

The Limitorque MX offers a number of network options: DDC-Modbus, Foundation Fieldbus H1, Proﬁbus DP_V1, Proﬁbus PA, and DeviceNet.

Ensure that the network cable type is Belden 3074F, Belden 3105, Belden 9841 or another cable that is within 5% of the following speciﬁcations.

• Nominal impedance: 120 ohms @ 1 MHz

• Line to shield capacitance: 23.0 pF/ft (75.5 pF/m)

• Line to line capacitance: 12.8 pF/ft (42.0 pF/m)

Using other cables may result in decrease of internodal distance and/or an increase in communication error.

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Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

Particular care should be taken when terminating twisted-pair shielded cables in a control network. Avoid nicks, cuts, or abrasions in the insulation of data communication cables, since this may result in inadvertent ground connection. Also, excess cable should be cut, not coiled or looped, to prevent noise induction into the network.

Limitorque strongly recommends remote communication wiring be routed separately from mains line power wiring. Speciﬁcally, instrumentation wiring, including communication, analog and discrete signal wiring, should be routed in conduit that is separated from power lines. If the recommendation is not followed, the intergrity of instrumentation signals may be comprimised. If the signal is comprimised, the MX will enter a“safe-state” whereby all motion is prohibited until communication is sucessfully re-established.

Figure 3.13 – View of terminal block

Figure 3.14 – Standard wiring diagram

NOTE: Most current wiring diagram is shipped within the terminal compartment of the MX.

Reversing

Motor

contactor

Dig Com #1-Ve

Control supply

Aux. input (Optional)

Close inhibit/

interlock Input 1

Open inhibit/

interlock Input 2 Dig Com #2-Ve

E.S.D. Input 0

Dig Com #3-Ve

110 VAC

24 VDC +Ve

FS1 FS2

FS3

LimiGard

Power board

Jumpers may be added to connect digital commons - pt. 28 & 29, 31& 32

Note: 110 VAC control supply from actuator is optional.

Stop

Open

0 VAC

0 VDC

PE L1 L2 L3

Three-phase supply

27 26 25 28

30 32

23 24 22 21

6 7

Main processor board

REMOTE

STOP

LOCAL

Limitorque

Control panel

Torque sensor

OPEN

(YES)

(NO)

Position

sensor

Circuit shown with valve in fully

closed position and with power off.

Status feedback output switches

Default setting

“ CLOSE ” position

“ OPEN ” position

“ CLOSE ” position

“ OPEN ” position

Monitor relay

Show n with power supply off

S1a

S1b

S2a

S2b

View of terminal block

Grounding lug

Cable Preparation

Prepare the network cable for connection to the MX actuator terminal block as illustrated in Figures 3.15 through 3.18.

CAUTION: Strip stranded conductors carefully; do not damage the strands. This will weaken the conductor.

Do not nick conductors when stripping away the insulation. Nicking stresses the conductor and can cause the conductor to break. This type of damage may not be apparent and failure can occur later without warning.

Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

1. Remove 2 to 3 in. (5 to 8 cm) of the outer plastic jacket as shown in Figure 3.15. Do not cut or nick the drain wire or the insulated conductors.

Figure 3.15 – Removing outer plastic jacket

2. Separate the cable parts. Unbraid the braided shield and peel back the foil shield to the same point where the outer jacket was removed as shown in Figure 3.16.

3. Cut away the braided shield and the foil shield. Strip the insulation from the conductors approximately ½ inch (1 cm) as shown in Figure 3.17.

4. Apply heat shrink tubing to insulate the drain wire and to provide stress relief to the cable.

5. Install ring tongue connectors as shown in Figure 3.18.

CAUTION: Do not melt the insulation.

6. Connect the network cables to the MX actuator terminal block per Table 3.4 and appropriate wiring diagram. Table

3.3 details a connection for the loop topology.

Figure 3.16 – Separating cable parts

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Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

Figure 3.17 – Stripping conductors and applying heat shrink tubing

Figure 3.18 – Ring tongue connectors

Table 3.4 – Loop topology connections

Terminal Block Number DDC

4 DATA-A1* (-)

5 DATA-A1 (+) 14 DATA-A2* (-) 13 DATA-A2 (+)

3 Surge Protection

In terms of voltage, DATA is negative with respect to DATA*.

NOTE: Surge protection must be grounded to be effective.

NOTE: Ground each segment of the cabling at only one point to prevent ground loops, which can affect system

performance. Verify the actuator is properly grounded.

Limitorque deﬁnes an effective local earth ground as the M3 taps on the housing next to the terminal block. See ﬁgure

3.21.

NOTE: Safety ground may not be disturbed.

NOTE: Shielding is not sufﬁcient to prevent induction of stray voltages onto signal leads from the power lines.

A network wiring diagram for a loop is shown in Figure 3.20.

Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

After installation is complete and prior to operation, inspect the network cable and its connection to each ﬁeld unit for the following:

There should not be:

• Nicks in the insulation—this can cause a short to the grounded shield.

• Cut strands in a stranded conductor—this can cause a poor connection and eventually an open circuit.

• Cable armor shorted to the cable shield/drain wire—this may not be at ground potential and could be subject to

lightning surges.

• Shield/drain wire grounded at more than one end of each cable segment (the section between each adjacent actuator on the loop). This will avoid ground loop problems.

• Ground/earth connection except at true ground potential and effective at all times.

3.3.8 Foundation Fieldbus Installation

Ensure that the Foundation Fieldbus cable type is Belden 3076F, or another cable that is within 5% of the following speciﬁcations.

• Characteristic impedance: 100 ohms @ 31.25 kHz

• Resistance, each wire: 7.32 ohms/1000 ft

• Attenuation: 0.914 dB/1000 ft @ 39 kHz

• Capacitative Unbalance: 3.6 pF/ft

Using other cables may result in decrease of internodal distance and/or an increase in communication error.

Particular care should be taken when terminating twisted-pair shielded cables in a FF control network. Avoid nicks, cuts, or abrasions in the insulation of data communication cables, since this may result in inadvertent ground connection. Also, excess cable should be cut, not coiled or looped, to prevent noise induction into the network.

Cable Preparation

Prepare the network cable for connection to the MX actuator terminal block as follows in Figure 3.15 through 3.18. Table 3.5 details connections for Foundation Fieldbus.

Table 3.5 – Foundation ﬁeldbus connections

Terminal Block Number FF Function

4 DATA (-) 5 DATA (+)

The shield must be connected to ground or earth at only one place. The cable shield is generally grounded at the power conditioner.

Reference the Fieldbus Foundation Application Guide 31.25 kbit/s Wiring and Installation guide for more information on network wiring.

CAUTION: Strip stranded conductors carefully; do not damage the strands. This will weaken the conductor.

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Limitorque MX Electronic Actuator FCD LMENIM2306-06 – 10/13

3.3.9 Network Wiring – Proﬁbus DP/PA Installation

Proﬁbus DP is based on RS 485 communication. The standard EN 50170 speciﬁes the cable for use with Proﬁbus DP.

The following speciﬁcations need to be fulﬁlled by the Proﬁbus cable:

Table 3.6 – Proﬁbus cable speciﬁcations

Parameter Type – Proﬁbus DP

Impedance 135 to 165 ohm/3 to 20 MHz Capacity < 30 pF/m Resistance < 110 ohm/km Wire gauge > 0.64 mm Conductor area > 0.34 mm

The Proﬁbus DP cable is a shielded twisted pair cable.

In general, there are two different types of cables available. The most commonly used cable has solid wire for the Proﬁbus line. When there is a need for more ﬂexiblity (bending) and higher environmental resistance, a cable with stranded wire for the Proﬁbus line and special jackets shall be used. Limitorque recommends the use of:

• Belden 3079A Speciﬁcations, 22 AWG, shielded, solid two conductor

Key Speciﬁcations

• Capacitance/ft = 8.5 pF

• Nominal Impedance (ohms) – 150.0

Network Wiring - Proﬁbus PA

Please refer to IEC 61158 & ANSI/ISA S.50.02 Part 2-1992 for network wiring guidelines. Refer to Table 3.5 for connections.

3.3.10 Network Wiring – DeviceNet

DeviceNet is a CAN-based protocol that uses ﬁve wires including a shield. Two of the conductors are used for 24 VDC power and up to 8 amps (4 amps for NEC Class 2) may be passed along the hi-way from a suitable power source. Two conductors are used for the CAN bus signals, CAN_H and CAN_L, which are usually smaller in diameter. Flowserve recommends Belden 3082A cable for connecting to a DeviceNet network. The speciﬁcations for this cable are preferred.

Table 3.7 – DeviceNet cable speciﬁcations

Belden

Part No.

3082A

AWG (Stranding)

dia. Inches

Nom. DCR

2 – 15 AWG (19 x 28)

3.6 ohm/1000 ft

11.8 ohm/km

2 – 18 AWG (19 x 30)

6.9 ohm/1000 ft

22.7 ohm/km

Insulation

material

(color code)

Power pair

(Black/Red)

Data pair

(Blue/White)

Nominal

O.D.

12.2 mm 120 12.0 pF/ft

Nom

Impedance

(ohms)

Nominal

Capacitance

Test

Frequency

(MHz)

0.125

0.5 1

Maximum

Attenuation

dB/100ft

0.13

0.25

1.36

3084A

2 – 22 AWG (19 x 34)

17.5 ohm/1000 ft

57.4 ohm/km

2 – 18 AWG (19 x 36)

28.0 ohm/1000 ft

91.9 ohm/km

Power pair

(Black/Red)

Data pair

(Blue/White)

7.2 mm 120 12.0 pF/ft

0.125

0.5 1

0.29

0.50

1.70

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