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Flowserve Limitorque LTQ008, User Instructions

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LTQ008 – LTQ230 Series 3-Phase

 Products 

User Instructions – 

AIIOM000165

 EN 

 
 

Page 

2

 of 

40

 

 

TABLE OF CONTENTS 

1

 

General Information ......................................................................................................... 4

 

1.1

 

Scope of Manual ..........................................................................................................................................4

 

1.2

 

Disclaimer ......................................................................................................................................................4

 

1.3

 

Operational Concepts ................................................................................................................................4

 

2

 

Safety Information ............................................................................................................. 6

 

2.1

 

Safety symbols and descriptions ................................................................................................................6

 

2.2

 

Intended use .................................................................................................................................................6

 

2.3

 

General hazard sources ..............................................................................................................................7

 

2.4

 

Qualified Personnel and Targeted Group .................................................................................................8

 

3

 

Product Description .......................................................................................................... 9

 

3.1

 

General Product Description ......................................................................................................................9

 

3.2

 

Shipping and Handling ..............................................................................................................................10

 

4

 

Installation ....................................................................................................................... 10

 

4.1

 

Installation ...................................................................................................................................................11

 

4.2

 

 Mounting ....................................................................................................................................................11

 

5

 

Theory of Operation ........................................................................................................ 12

 

5.1

 

 LTQ008 – LTQ230 NCU (230/3 – 575/3  On/Off Control) ........................................................................12

 

5.2

 

LTQ008 – LTQ230 BIC (230/3 – 480/3 On/Off Control) ............................................................................13

 

5.3

 

LTQ008 – LTQ230 BIC (230/3 – 480/3 Proportional Control) ....................................................................14

 

5.4

 

LTQ008 – LTQ230 BIC + LL (230/3 – 480/3 On/Off Control) .....................................................................15

 

5.5

 

LTQ008 – LTQ230 BIC + LL (230/3 – 480/3 Proportional Control) ............................................................16

 

5.6

 

Torque Switches ..........................................................................................................................................17

 

5.7

 

LTQ LL Series LCS Operation ......................................................................................................................18

 

5.8

 

Adjustments .................................................................................................................................................19

 

6

 

Commissioning ............................................................................................................... 23

 

6.1

 

NCU Commissioning - On/Off Control .....................................................................................................23

 

6.2

 

BIC Commissioning - On/Off Control .......................................................................................................24

 

6.3

 

BIC Commissioning - Proportional Control ..............................................................................................24

 

6.4

 

LCS Commissioning for BIC + LL On/Off Control .....................................................................................25

 

6.5

 

LCS Commissioning for BIC + LL Proportional Control ............................................................................26

 

7

 

Calibration ....................................................................................................................... 28

 

7.1

 

Calibration Procedure for BIC On/Off Control .......................................................................................28

 

7.2

 

Calibration Procedure for BIC Proportional Control ..............................................................................29

 

7.3

 

Calibration Procedure for BIC + LL Control Station Proportional Control ............................................31

 

8

 

Troubleshooting Guide ................................................................................................... 32

 

9

 

Technical Data ................................................................................................................ 34

 

9.1

 

Nameplate ..................................................................................................................................................34

 

9.2

 

Torque Requirements .................................................................................................................................35

 

Summary of Contents for Limitorque LTQ008

Page 1: ...ions prior to installing operating and maintaining this equipment LTQ008 LTQ230 Series 3 Phase Products Including LCS Products Installation Operation Maintenance Compact Quarter Turn Electric Actuator AIIOM000165 00 EN 20 ...

Page 2: ...AIIOM000165 EN Copyright All rights reserved No part of these instructions may be reproduced stored in a retrieval system or transmitted in any form or by any means without prior permission of Flowserve Corporation Document Version Initial Release 04 30 2020 ...

Page 3: ...ontrol 13 5 3 LTQ008 LTQ230 BIC 230 3 480 3 Proportional Control 14 5 4 LTQ008 LTQ230 BIC LL 230 3 480 3 On Off Control 15 5 5 LTQ008 LTQ230 BIC LL 230 3 480 3 Proportional Control 16 5 6 Torque Switches 17 5 7 LTQ LL Series LCS Operation 18 5 8 Adjustments 19 6 Commissioning 23 6 1 NCU Commissioning On Off Control 23 6 2 BIC Commissioning On Off Control 24 6 3 BIC Commissioning Proportional Contr...

Page 4: ...LTQ008 LTQ230 Series 3 Phase Products User Instructions AIIOM000165 EN Page 3 of 40 9 3 LTQ NCU and BIC Units 36 9 4 LTQ BIC LED Units 37 9 5 Wire Sizing 38 Annex A Glossary 39 ...

Page 5: ...ndards as certified and audited by external Quality Assurance organizations Genuine parts and accessories have been designed tested and incorporated into the products to help ensure continued product quality and performance in use As Flowserve cannot test parts and accessories sourced from other vendors the incorrect incorporation of such parts and accessories may adversely affect the performance ...

Page 6: ...er is landed on the main terminal strip However it must be noted that installations with existing motor control centers may only be able to utilize NCU actuators It is important to fully understand what level of control is required prior to selecting one of these products While it might make sense to opt for the most feature laden solution to cover all the possibilities in a given application that...

Page 7: ...important special instructions not related to hazards SAFETY ALERT This is the safety alert symbol It warns of potential physical injury hazards Obey all safety messages that follow this symbol to avoid injury or death ELECTRICAL HAZARD This symbol indicates electrical safety instructions where non compliance would affect personal safety and could result in loss of life 2 2 Intended use The produc...

Page 8: ...orm all lifting in compliance with site safety protocol local regulations and related industry standards Many precision parts have sharp corners which require appropriate personal protective equipment during handling Prior to any attempt to lift an item employees must first determine the approximate weight and stability of the load Always handle large unstable or awkward loads with the assistance ...

Page 9: ...iately Ground all electrical equipment before connecting to an electrical power supply Failure to ground all electrical equipment can cause serious or fatal electrical shock hazards Do not ground anything to a gas supply line Failure to bond all electrical equipment to a system structure will increase the risk of electrocution and could result in injury or death Additionally contact a licensed ele...

Page 10: ...capabilities LED feedback and a human machine interface 3 1 1 Type LL LED type This is a NEMA 4 4X and IP67 optional IP68 type rectangular enclosure that is integral to the actuator housing This type contains two non intrusive magnetic knob switches for mode and position control This version also employs an LED panel with five bright LEDs mounted behind the glass with indicators for actuator opera...

Page 11: ...r top below a horizontal position i e upside down Protect the actuator from moisture by installing it with water tight electrical metallic tubing EMT fittings and proper conduit drainage Supply power to the unit to keep the internal heater warm at the time of installation BIC units only When installing conduit use proper techniques for entry into the actuator Use drip loops to prevent conduit cond...

Page 12: ...ering starts with 1 at the bottom b The blue terminal block contains screw terminals 4 9 and A N which are rated to accept 14 AWG down to 18 AWG solid or stranded wire These are used for interfacing and control wiring 6 Reference the actuator s product number and Error Reference source not found to determine which diagram to follow when wiring the actuator 7 Note that although terminals are labele...

Page 13: ...ere motor control centers are already established A site furnished 120VAC control power circuit is required for this series The inside of the actuator contains 1 No Reversing Motor Starter This actuator will run in one direction only if the motor leads are not connected to a reversing starter The required reversing motor starter must be already located in an existing switch gear cabinet 2 No Phase...

Page 14: ...n the inside 2 Phase Monitor Circuitry If phasing is incorrect at the actuator the protective circuitry will automatically reverse two of the three legs to allow the motor to drive in the correct direction With this built in protection device improper phasing is non existent The installer needs neither worry about proper phasing being brought to the actuator nor possible phase reversal in the futu...

Page 15: ... run CW 0 or CCW 90 as a function of received control signal compared to the actuator position The actuator contains the required reversing motor starter on the inside 2 Phase Correction Circuitry If phasing is incorrect at the actuator the protective circuitry will automatically reverse two of the three legs to allow the motor to drive in the correct direction With this built in protection device...

Page 16: ...S or the remote control The required reversing motor starter is already located inside the actuator 2 Phase Correction Circuitry If phasing is incorrect at the actuator limit switches and torque switches are not necessarily in the correct circuit to protect the gear train or actuator from damage Built in phase protection circuitry will automatically reverse two of the three legs to allow the motor...

Page 17: ...d inside the actuator 2 Phase Correction Circuitry If phasing is incorrect at the actuator limit switches and torque switches are not necessarily in the correct circuit to protect the gear train or actuator from damage Built in phase protection circuitry will automatically reverse two of the three legs to allow the motor to drive in the correct direction With this built in protection device improp...

Page 18: ...the output drive provide the rotational action for the cams 3 The upper torque switch protects CW rotation 4 The lower torque switch protects CCW rotation Figure 12 The upper cam is tripping the upper switch Torque Event CW 1 12 shows a high torque event in the CW direction 2 The torque switch CW drive cam upper and the switch are in the tripped position 3 When the torque switch trips it immediate...

Page 19: ...2 10 VDC control signal generating a 4 20 mA 2 10 VDC feedback signal out respective of the position of the actuator iii LOC LOCAL On Off actuators This position sets the actuator to respond to the position knob In this position the LED indicators are active and all external field signals are ignored having no effect on the positioning of the actuator Proportional control actuators The actuator re...

Page 20: ...quires adjustments proceed to sections 5 8 1 Adjusting CW End of Travel and 5 8 2 Adjusting CCW End of Travel Otherwise proceed without adjusting the cams For most actuators the stop positions are independent of one another e g the CW position is accurate while the CCW position may need adjustment Follow these directions carefully and in order Actuator damage due to improper testing and commission...

Page 21: ...ntil an audible click is heard This will reset the switch roller arm ii Gently tighten CW the set screw only until slight pressure is felt Ideally the set screw rides along the camshaft iii Slowly rotate the hex key to the left pushing the cam until an audible click is heard on the bottom switch The click means correct adjustment has been achieved iv Tighten the cam set screw b Apply power and tes...

Page 22: ...eft 10 15 until an audible click is heard This will reset the switch roller arm ii Gently tighten CW the set screw only until slight pressure is felt Ideally the set screw rides along the camshaft iii Slowly rotate the hex key to the right pushing the cam until an audible click is heard on the bottom switch The click means correct adjustment has been achieved iv Tighten the cam set screw b Apply p...

Page 23: ...vel electrically v Tighten the cam set screw vi Repeat this procedure for cam 5 2 Adjust CCW auxiliary cams a Cam 4 green and cam 6 green control the CCW auxiliary switch adjustments These are optional switches typically used to indicate when the actuator has reached its CCW position b Drive the actuator to its CCW position Use a sharp 2 5 mm hex key to free up the cam set screw Take care not to l...

Page 24: ...before making any travel adjustments 1 After the actuator and valve damper assembly have been installed with power and control connected before applying power use the handwheel to rotate the actuator to a mid travel position 2 Be sure there are NO movement commands active and apply 3 phase power a Actuator should NOT move i If it does move IMMEDIATELY remove 3 phase power from the actuator to STOP...

Page 25: ...mote CW move command and verify the DIRECTION of the position indicator is CW a If it is NOT there is a problem with the field logic or wiring troubleshoot accordingly b If it is proceed to step 4 5 Generate a remote CCW move command and verify the DIRECTION of the position indicator is CCW a If it is NOT there is a problem with the field logic or wiring troubleshoot accordingly b If it is proceed...

Page 26: ... Check the full scale response of the analog signals into and out of the actuator by referring to page 32 8 If the actuator stops at the correct positions and generates a feedback signal representative of the position of the actuator the actuator can be put into service and is fully operational 6 4LCS Commissioning for BIC LL On Off Control Allowing the motor to drive the gear train into the mecha...

Page 27: ...erminals 6 and 8 d Generate a remote CCW move command and verify that the direction of the position indicator is CCW 11 If the actuator does not stop at the correct position s fails to move in the correct direction s or fails to stop moving when the respective torque switch levers are depressed immediately stop the operation of the actuator and refer to the Table of Contents for the section to ref...

Page 28: ...ing of 12 mA a If it does not read 12 mA check the polarity of the incoming analog signal to ensure a reading of 12 mA Repeat step 8 ii If the actuator moves momentarily and stops at the mid stroke position proceed to step 9 iii If the actuator does not move at all rotate the handwheel slightly in either direction to offset the controller 1 The actuator should move back to the midpoint position an...

Page 29: ...The actuator will move CW After confirmation remove the jumper 5 Place a jumper between terminals 6 and 8 Do not apply external power to any of these terminals The actuator will move CCW After confirmation remove the jumper 6 Reconnect field wiring to terminals 6 7 and 8 7 Generate a CW move command and verify the direction of the position indicator is moving CW a If it is not immediately remove p...

Page 30: ...ck pushbutton on the Mod control board and hold it down for about three seconds then release a The green STA LED will turn off and the unit will drive to the fully CW position and stop when the pre set cam positions are reached b There are NO LED indicators to advise when the actuator is running 2 teeth CW before tightening the two M3 set screws on the sector drive gear 7 When the actuator stops p...

Page 31: ...LTQ008 LTQ230 Series 3 Phase Products User Instructions AIIOM000165 EN Page 30 of 40 Figure 31 Proportional PCB 3 phase details 24 V controller ...

Page 32: ...ed light D3 both turn on d The MCU will record the CW 0 position and then enters the full CCW setting mode 5 Set the full CCW stroke position a Press S2 button for the actuator to move CCW b Continue to pressing S2 towards 100 until the actuator reaches full CCW position and then release the button to stop c Press S1 button for 5 seconds blue light D3 turns off and the red light D3 turns on d The ...

Page 33: ... Measure correct voltage changes between hot and terminal 6 CCW and hot and terminal 4 CW Wire sizing Check for the correct wire size per Table Overtorque Remove the actuator from the driven device If the actuator now moves the torque required by the mechanical device exceeds that of the actuator Increase the size of the actuator With the actuator removed from the mechanical equipment manually rot...

Page 34: ...hat of the actuator Increase the size of the actuator With the actuator removed from the mechanical equipment manually rotate the valve or damper through its intended range of travel to check for mechanical problems Insufficient power supply and or incorrect wire size during installation Measure the voltage between terminals 1 2 while commanding the actuator to move Also measure the voltage betwee...

Page 35: ...LTQ008 LTQ230 Series 3 Phase Products User Instructions AIIOM000165 EN Page 34 of 40 9 Technical Data 9 1Nameplate Figure 34 Example of an LTQ0H3 LTQ0H4 Series nameplate ...

Page 36: ...tection Temp Class 155 C 311ºF Class F 180 C 356ºF Class H 155 C Class F 180 C Class H Motor Starts per hour Max All 600 480 3PH Current Draw Start Run LRA 0 2A 0 2A 0 4A 0 7A 0 4A 1 0A 0 9A 0 5A 1 1A 1 2A 0 9A 2 1A Speed 90 60Hz 50Hz sec 16 19 33 39 24 29 33 39 39 47 28 34 39 47 Motor 480V Polyphase TENV 40W 90W 120w 200W On Off Proportional Duty Cycle IEC60034 25 S2 15 min 75 S4 75 25 S2 15 min ...

Page 37: ...LTQ008 LTQ230 Series 3 Phase Products User Instructions AIIOM000165 EN Page 36 of 40 9 3 LTQ NCU and BIC Units Figure 35 Exploded view of the NCU and BIC units ...

Page 38: ...LTQ008 LTQ230 Series 3 Phase Products User Instructions AIIOM000165 EN Page 37 of 40 9 4 LTQ BIC LED Units Figure 36 Exploded view of BIC LED units ...

Page 39: ...sizes over distance Always reference the correct voltage and do not exceed the indicated length of the wire run for each model Table 5 Maximum distance between actuator and power supply LTQ008 LTQ017 ACTUATOR Voltage 230 3 380 3 480 3 575 3 Amps 0 7 0 4 0 2 0 2 AWG Maximum Distance Actuator to Power Supply ft 16 1665 10752 25636 33559 14 2649 17102 40774 53375 12 4212 27193 64833 84869 10 6695 432...

Page 40: ...stry acronym for No Controls Units 11 PC denotes a product manufactured with Phase Correction circuity built in 12 PCB is an industry acronym for printed circuit board 13 PLC is an industry acronym for a programmable logic controller 14 PP denotes a product manufactured with Phase Protection circuitry built in 15 REV denotes a product manufactured with Reversing Motor Starters built in 16 TS denot...

Page 41: ...en does provide general guidelines it cannot provide specific data and warnings for all possible applications The purchaser user should read and understand the User Instructions Installation Operation Maintenance included with the product and train its employees and contractors in the safe use of Flowserve products in connection with its application While the information and specifications contain...

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