Flowserve MX Electronic Actuator User Manual

	USER INSTRUCTIONS
Limitorque MX Electronic Actuator	Installation
FCD LMENIM2306-06 - 10/13	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
2		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

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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

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	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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				Limitorque MX Electronic Actuator	FCD LMENIM2306-06 – 10/13
	Figure 1.1 – MX-05 Actuator
					Piece	Description
					1	Handwheel
				1	2	Declutch Lever (MX-05)
					3	Oil Fill
					4	Controls Cover
		3		2	5	LCD
	12				6	Control Knob
	11				7	Ground Lug
	10				8	Thrust/Torque Base
		4			9	Conduit Entry
			5		10	Terminal Compartment
				2	11	Motor
9	8	7		6	12	Nameplate

1 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

8removed. 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

2 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.

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a 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.

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

Figure 2.1 – Electrical operation

STOP	YES	Switch to	YES	YES2	YES
			STOP

SET CLOSE		CLOSE VALVE		CLOSE VALVE		CLOSE VALVE	SAVE CLOSE		IDENTICALLIMITS
POSITION LIMIT?		OK ?	LOCAL	RETURN TO STOP		OK ?	LIMIT OK?		KEEPCLOSELIMIT?
								YES1
			“NO ” operates		NO
NO		NO	close direction			NO	NO		NO
	YES		Switch to		STOP	YES		YES2	YES
SET OPEN		OPEN VALVE		OPEN VALVE		OPEN VALVE	SAVE OPEN		IDENTICALLIMITS
POSITION LIMIT?		OK ?	LOCAL	RETURN TO STOP		OK ?	LIMIT OK?		KEEPOPENLIMIT?
								YES1
			“YES” operates		YES
NO		NO	open direction			NO	NO		NO
	YES		YES			YES
SET POSITION		POSITION			SETUP?	Enter “SETUP ” mode		NOTE 1: If open and close limits
PRECISION?		XXX% OPEN?							are not identical
								NOTE 2: If open and close limits
NO									are identical
		NO			NO
			YES			YES
						100% OPEN
	NO	POSITION			EXIT
					SETUP?	STATUS OK?
		XXX.X% OPEN?

NO

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

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

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

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

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 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 1/2 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?”

aCAUTION: 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

STOP	YES	YES	YES

SET CLOSE	CLOSE VALVE		SAVE CLOS E
POSITION LIMIT?	OK ?		LIMIT OK?
		Declutch actuator;
NO	NO	Rotate handwheel to		NO
		“CLOSE” position limit
YES		YES			YES
SET OPEN	OPEN VALVE		SAVE OPEN
POSITION LIMIT?	OK ?		LIMIT OK?
NO		Rotate handwheel to
	NO “OPEN” position limit			NO
YES					YES
SET POSITION	POSITION			SETUP?	Enter “SETUP” mode
PRECISION?	XXX% OPEN
NO	NO			NO		YES
					EXIT	100%
					SETUP?	STATUS OK

NO

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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.

aCAUTION: 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.”

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

3 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

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

Figure 3.2 – B4E base

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

Baseplate

Drive sleeve

MX base

Torque nut

Retaining ring

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)

16An 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

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

Pipe plug

Socket head cap screw (M8 x 20)

Torque nut (B1)	Housing,
	torque/thrust

Bearing

Pipe plug

Retainer, bearing

Pilot, torque/thrust

Thrust nut assembly

Washer (M4)

Socket head

cap screw (M4 x 8)

Socket head set screw

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	17
actuator must be removed for service.

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

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)

Housing

Quad ring

Socket head cap
Thrust washer
Thrust Nut
Thrust washer	Pipe plug

O-ring

Thrust pilot

Needle bearing

18

Quad ring

Washer

Socket head cap screw Thrust base standard nut

Thrust base extended nut

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		Torque
	ft-lb		N m
M8 or 5⁄16 in. (8 mm)			16-19
	12-14
M10 or 3⁄8 in. (9 mm)	25-30		33-40
M12 or 1/2 in. (13 mm)	40-50		53-67
M16 or 5⁄8 in. (16 mm)	90-100		122-135
M20 or 3/4 in. (19 mm)	180-200		244-271

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

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

Pipe plug Housing

	Socket head
	cap screws
	Thrust bearing
Thrust nut
Baseplate Thrust bearing
Socket head
cap screws	Thrust
	Quad ring washer

Quad ring

Thrust

O-ring washer

A

A

Section A-A	Section A-A
View shown	View shown
with standard nut	with extended nut

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.

20NOTE: 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

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	Pipe plug
			Thrust
			bearing
			Thrust nut
		Thrust		Socket
				head cap
		bearing	Thrust	screws
		O-ring
	Thrust		washers	Pipe plug
			Quad ring
	pilot
			Quad ring
			Thrust
			washers	A
	Socket head Washers		B
	cap screws
		Section A-A	Section B-B	B
	View shown with		View shown with
		standard nut	extended nut	A

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.	21

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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.

or

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. or

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.

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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.

cWARNING: 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

Figure 3.10 – Power terminal connector size limitations

MAX. THICKNESS = 1.6 mm

		NOT TO
		EXCEED 3.5
	NOT TO	NOT TO	NOT TO
	EXCEED 9.8	EXCEED 6.5	EXCEED 15
			NOT TO
			EXCEED 9.6
		TO BE SIZED	TO BE SIZED
			FOR M5 SCREW
		FOR M5 SCREW
	NOT TO
	EXCEED 15
	SPADE AND SNAP	FLANGED	RING TERMINAL
	TERMINALS	SPADE TERMINAL

Figure 3.11 – Terminal block rating; power terminals

	Description	L1	L2	L3
		30 AMP	20 AMP	15 AMP
	STD Rating	8 Awg/10 mm2	10 Awg/6 mm2	14 Awg/2.5 mm2
		600 VAC	RMS	150 VDC
	Increased	27 AMP	18 AMP	13.5 AMP
		8 Awg/10 mm2	10 Awg/6 mm2	14 Awg/2.5 mm2
	Safety Rating
		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.

Figure 3.12 – Control terminal connector size limitations

NOT TO	MAX. THICKNESS = 1.0 mm
EXCEED 7.6		NOT TO
	NOT TO
NOT TO		EXCEED 5
	EXCEED 4.0	NOT TO
EXCEED 5		EXCEED 8.2
		TO BE SIZED
	TO BE SIZED	FOR M3 SCREW
	FOR M3 SCREW
SPADE AND SNAP		RING TERMINAL
TERMINAL

3X M5 SCREW

54X M3 SCREW

3X M5 SPRING

WASHER 54X M3 SPRING WASHER

FIGURE 3.13

THE USE OF THE SPRING WASHERS ARE REQUIRED

ON INCREASED SAFETY APPLICATIONS.

NOTE: All dimensions are in mm.

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

24NOTE: 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 Ambient1		105°C

Note 1: Refer to unit nameplate.

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)	25

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.

			PE
			L1	Three-phase supply
			L2
			L3
Motor	Reversing		Close	27
	contactor		Stop	26
			Open	25
		*	Dig Com #1-Ve	28
	FS1 FS2		Close inhibit/	35
			interlock Input 1
			Open inhibit/	34
			interlock Input 2
			Dig Com #2-Ve	29
			E.S.D. Input 0	30
			Dig Com #3-Ve	32
		FS3
			0 VAC	23
LimiGard		Control	110 VAC	24
		supply	24 VDC +Ve	22
			0 VDC	21
		Aux.	24 VDC +Ve	6
	Power	input
			0 VDC	7
	board	(Optional)

*Jumpers may be added to connect digital commons - pt. 28 & 29, 31& 32 Note: 110 VAC control supply from actuator is optional.

Main processor board

Position	Torque
sensor	sensor
TE	OP
REMO	(YESEN)
STOP	)
LOCAL	CLOSE
	(NO
Limitorque

Control panel

Circuit shown with valve in fully closed position and with power off.

	Status feedback
	output switches
	Default setting		44
	“CLOSE”	S1a
	position		45
	“OPEN”	S1b	48
	position		49
	“CLOSE”	S2a	46
			47
	position
	“OPEN”	S2b	50
			51
	position
	Monitor relay
	Show n		54
	with		53
	power
	supply off		52

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.
26	a 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 1/2 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.

a 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

4DATA-A1* (-)

5DATA-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.

28NOTE: 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

4DATA (-)

5DATA (+)

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.

aCAUTION: 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.

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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 mm2

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	AWG (Stranding)	Insulation	Nominal	Nom	Nominal	Test	Maximum
			dia. Inches	material		Impedance		Frequency	Attenuation
		Part No.			O.D.		Capacitance
			Nom. DCR	(color code)		(ohms)		(MHz)	dB/100ft
			2 – 15 AWG (19 x 28)	Power pair
			3.6 ohm/1000 ft
				(Black/Red)				0.125	0.13
			11.8 ohm/km
		3082A			12.2 mm	120	12.0 pF/ft	0.5	0.25
			2 – 18 AWG (19 x 30)	Data pair				1	1.36
			6.9 ohm/1000 ft
				(Blue/White)
			22.7 ohm/km
			2 – 22 AWG (19 x 34)	Power pair
			17.5 ohm/1000 ft
				(Black/Red)				0.125	0.29
			57.4 ohm/km
		3084A			7.2 mm	120	12.0 pF/ft	0.5	0.50
	30		2 – 18 AWG (19 x 36)	Data pair				1	1.70
			28.0 ohm/1000 ft
				(Blue/White)
			91.9 ohm/km