User Manual QT50
Doc ID 1321 version 2.0 Sept. 2018
www.eltorque.no
Table 1: Document history for User Manual QT50
Document ID Version Author Changes Approved by Date
1321 1.7 KK KK June 2017
1321 1.8 KK KK Nov. 2017
1321 1.9 SK Added info on harness KK Feb. 2018
1321 2.0 SK New layout and structure KK Sept. 2018
Copyright © 2018, Eltorque AS
This document is submitted in confidence and contains proprietary information which shall not be
reproduced or transferred to others for the purpose, tender or any other intensions without written
permission of Eltorque AS
Table of Contents
Introduction ......................................................................................... 5
System Overview ................................................................................................. 5
Description ........................................................................................................... 6
Features ............................................................................................................... 6
Area of use .......................................................................................................... 7
Technical support information ............................................................................. 7
Reader groups ..................................................................................................... 7
Notation used in this manual ............................................................................... 7
Related documentation ........................................................................................ 8
Disclaimer ............................................................................................................ 8
Terms and abbreviations ..................................................................................... 8
About this user manual ...................................................................................... 11
HSE Information ................................................................................ 13
Care and cleaning of actuator ........................................................................... 13
Disposal and waste handling ............................................................................. 13
Product Description .......................................................................... 15
QT50 actuator .................................................................................................... 15
Actuator control system examples ..................................................................... 16
Technical specification....................................................................................... 17
Actuator Components ........................................................................................ 19
QT50 External construction ------------------------------------------------------- 19
Communication interface ................................................................................... 19
Labelling ............................................................................................................ 21
Cabling ............................................................................................................... 21
Storage .............................................................................................................. 22
Engineering ........................................................................................................ 22
Power circuit design ----------------------------------------------------------------- 22
Duty performance -------------------------------------------------------------------- 22
Endurance ----------------------------------------------------------------------------- 23
Shielding considerations ----------------------------------------------------------- 23
Installations with Eltorque Hybrid Marine Cable ------------------------------ 25
Orientation ----------------------------------------------------------------------------- 26
Space requirements ----------------------------------------------------------------- 27
Mounting ------------------------------------------------------------------------------- 29
Information when an actuator/valve adaption is needed. ------------------ 29
Torque considerations for valve and actuator--------------------------------- 30
Closing time --------------------------------------------------------------------------- 30
Configuration -------------------------------------------------------------------------- 30
Mounting and Installation Instructions ........................................... 31
Mounting the actuator on the valve ................................................................... 31
Mounting procedure QT50 ................................................................................. 31
Valve flange fastening holes .............................................................................. 32
Cable connection overview ................................................................................ 33
Cable glands ...................................................................................................... 37
Power supply connection ................................................................................... 37
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Table of Contents
Grounding (earthing).......................................................................................... 38
Communication connection interfaces ............................................................... 39
Connection procedure -------------------------------------------------------------- 39
CANopen interface connection --------------------------------------------------- 39
Digital interface connection -------------------------------------------------------- 41
Analog interface connections ----------------------------------------------------- 42
Operation ........................................................................................... 44
Manual operation ............................................................................................... 45
Error alarms and error handling ......................................................................... 46
GENERAL alarm --------------------------------------------------------------------- 46
POSITION UNDEFINED alarm --------------------------------------------------- 46
TEMPERATURE alarm ------------------------------------------------------------- 47
TORQUE alarm ---------------------------------------------------------------------- 47
Troubleshooting ................................................................................................. 47
Maintenance ...................................................................................... 49
Maintenance overview ....................................................................................... 49
Inspection .......................................................................................................... 49
Tightening of valve/ actuator bolts ..................................................................... 49
Lubrication ......................................................................................................... 49
Care and cleaning of anodizing ......................................................................... 49
Technical Details ............................................................................... 51
Power consumption ........................................................................................... 51
Surface treatment .............................................................................................. 51
Communication interface ................................................................................... 51
CANopen interface ------------------------------------------------------------------ 52
Digital interface ----------------------------------------------------------------------- 52
Analog interface ---------------------------------------------------------------------- 53
Ordering Information and Recommended Spare Parts ................. 55
Torque and Screw Recommendations ............................................ 57
A. 1. Eltorque torque recommendations .................................................................... 57
A. 2. Mounting screws and lubrication ....................................................................... 57
Earthing Methods in Maritime Installations .................................... 59
Page 4 of 62 User Manual QT50 Doc ID 1321 version 2.0 Sept. 2018
Introduction
.
System Overview
The Eltorque Lifelong Intelligent control concept provides maintenance-free,
configurable eco-friendly and fully electric actuators with real-time feedback.
The Eltorque actuators are divided in two main families:
QT-series of actuators are ideal for quarter-turn valves such as butterfly and
ball-valves.
MT-series of actuators are multi-turn actuators optimized for linear valves
such as globe valves, and with a form factor that make the MT-series ideal for
manifold actuation.
The Eltorque actuators are fully electric and can be connected in series. They
offer a plug and play solution with low installation costs and high level of
security. By combining the Eltorque actuators with the Eltorque Hybrid Marine
Cable, the cost of installation is even further reduced.
The Electric serial connected actuator installation eliminates the cable clutter,
transportation loss, air or oil leakage associated with conventional actuator
installations.
The use of permanent magnet-based motor technology and efficient electric,
mechanics and firmware design guarantee an eco-friendly and cost-efficient
ownership.
Eltorque actuators have a proven track record of lifelong maintenance-free
operation with 15 years of proven operation.
Figure 1: System overview example
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Table of Contents
Description
The QT50 described in this user manual is the smallest actuator in the Eltorque
QT-series. This series is characterized by their quarter-turn movement and low
energy consumption along with their small footprint. They are suited for
butterfly, ball and other quarter-turn valves. The QT50 can be used in
conjunction with Eltorque Hybrid Marine Cable and is a part of the Eltorque
lifelong intelligent control concept.
Table 2: Product overview
Product Product id User Manual
QT50 CANopen Actuator with
connection harness
QT50 CANopen Actuator with harness
and Hybrid Cable 2
QT50 Digital Actuator with harness 50.110.1A
QT50 Analog Actuator with harness 50.130.1A
QT50 CANopen Actuator without
connection harness
QT50 CANopen Actuator without
harness but with Hybrid Cable 2
QT50 Digital Actuator without harness 50.110.1
QT50 Analog Actuator without harness 50.130.1
50.120.1A
50.120.1AH
50.120.1
50.120.1H
Doc ID 1321
version 2.0
Doc ID 1321
version 1.9
Features
The Eltorque actuators provides a wide range of attractive features:
Optimized single-axis architecture, ensuring a compact and low-weight
actuator.
Accurate real-time magnetic position control with no mechanical limit
switches, ensuring maintenance-free operation.
Few spare parts - low lifetime costs.
Easy setup and commissioning – low installation cost.
Specific alarms including over-torque and temperature – providing high
operation safety.
Robust implementation of CANbus ensuring a reliable serial connection.
Self-lock feature which allows movements from the motor, but locks
movements from the gear side.
Remote programming via the CAN cable.
Specific alarms including over-torque and temperature – providing high
operation safety.
Fast and precise motor reduces the closing time.
Page 6 of 62 User Manual QT50 Doc ID 1321 version 2.0 Sept. 2018
Area of use
Eltorque actuators are an ideal choice in a wide range of Maritime and Onshore
systems including, but not limited to:
Cargo handling
Bilge and ballast
Tank gauging
SPS system
Anti-heeling systems
RSW systems
Bulk handling
Fuel systems
Hydro power and district heating
Waste water treatment
HVAC system
Fire water system
Oil Production system, oil transfer line
Technical support information
If you require technical support outside of this manual, we recommend that you
use the support functions available on the web-site or contact us via e-mail.
Introduction
If you have feedback to this manual, that should also be routed through e-mail.
Eltorque AS
Julianus Holms veg 34
7071 Trondheim
Norway
Web: www.eltorque.no
e-mail: info@eltorque.no
Phone: +47 74 85 55 20
Fax: +47 74 85 55 12
Reader groups
The following reader groups have been defined for this User Manual:
Project and engineering personnel
Installation personnel
Operators
Supervisors
Technical support personnel
Technical management personnel
Notation used in this manual
The following notations have been used in this manual:
Bold is used for commands and menu selection
Italic is used to give emphasis to information. It is also used for names of
documents referred to in the manual.
Note! Note is used to draw attention to important or helpful information.
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Table of Contents
Caution! A caution is used when there is a danger that the equipment is damaged if
you do not follow the instructions.
Warning is used to draw attention to information of very high importance,
for example to avoid injuries to personnel.
Related documentation
This User Manual QT50 refers to the following documentation.
Table 3: Related documentation
Document Document ID
QT50 product data sheet Eltorque document ID 2140
Hybrid Marine Cable data sheet Eltorque document ID 1946
Eltorque E3C Manual Eltorque document ID 1687
Guidelines for earthing in maritime
installations
System Integrators Manual
CANopen Interface
Published by the Norwegian Electrical Safety
Directorate. Available on net or supplied by
Eltorque on request.
Eltorque document ID 1691
Disclaimer
The information contained in this document is subject to change without prior
notice. Eltorque AS shall not be liable for errors contained herein or for incidental
or consequential damages about the furnishing, performance, or use of this
document. It is the customer’s responsibility to verify that he has the latest
revision available by checking the document area of www.eltorque.no
Terms and abbreviations
Table 4: Terms and abbreviations
Term Description
ABS American Bureau of Shipping.
AFD Asbestos Free Declaration.
Analog Control
BTO Break to open.
Step-less control utilizing analog signals, e.g. 4-20 mA. Allows positioning of the
valve actuator between Open and Closed.
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Introduction
Term Description
Controller Area Network.
CANbus is a fieldbus which allows communication between a maximum of 127
actuators connected to the same network. It is not a “master-slave” network (ref.
Modbus), hence all the nodes in the network can actively send messages at their
own initiative. Communication is prioritized meaning that urgent messages are
CAN/CANbus
CANopen
CCS Central Control System.
Communication
Interface Box
Configuration The set-up of parameters, which affects the actuator’s performance and behavior.
Digital Control
DNV GL Det Norske Veritas Germanischer Lloyd.
E3C Eltorque Common Configuration Controller.
E-VCI Eltorque Valve Control Interface
E-VCS
Hazardous area
HMI Human Machine Interface.
HSE Health, Safety and Environment.
HVAC Heath, ventilation and air condition
IACS International Association of Classification Societies
IAS Integrated Automation System.
ICS Integrated Control System.
IMO International Maritime Organization
LR Lloyd’s Register.
MAST Maximum allowable stem torque/thrust.
MD Material Declaration.
MEPC The Marine Environment Protection Committee
transmitted and received before information with lower priority. Compared to
Modbus, CANbus has quite a few advantages:
More reliable communication
More nodes per network
More control and configuration features are available
Higher performance
CANopen is a higher-level protocol and is running on top of the CAN protocol for
all Eltorque actuators.
The standard consists of an adressing scheme for the nodes on the CAN bus and
several small protocols for communicating with each node. In terms of the OSI
model, CANopen implements the levels above, including the network layer.
Electronic device controlling the actuator according to signals from an overall
control system such as a PLC or other type of electronic controller.
Simple control utilizing relays, on/ off switches and indicators. Allows only Open
or Closed functionality for a valve actuator.
Eltorque Valve Control System offers a dedicated control system
for operation of Eltorque actuators.
Eltorque Valve Control System is suitable for installations where the operator
requires full control of all valves and pumps, and in addition monitor level,
temperature, flow and pressure.
Area in which the permanent or periodical presence of explosive substances
causes a risk of explosion.
Products described in this manual are not suitable for use in hazardous areas.
Eltorque can deliver actuators for use in such areas if required. Please contact
your local representative for further details.
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Table of Contents
Term Description
Open Systems Interconnection model. The model is a conceptual model that
OSI model
Out of range Definition of position. The outgoing shaft is outside the defined position area.
PF Power factor
PCB Printed circuit board.
PLC
RSW Refridgerated sea water system
SDoC Supplier Declaration of Conformity.
SOLAS
VA Voltampere
UPS Uninterruptable power supply.
Valve
Valve actuator A device for control of valves in various process control systems.
Valve top
flange
Within range Definition of position. The outgoing shaft is within the defined position area.
standardizes communication systems without regard to the underlying internal
structure. The model partitions a communication system into abstraction layers.
A Programmable Logic Controller is a digital computer used for automation of
industrial processes, such as control of machinery on factory assembly lines,
measurement and control of process plants etc.
Safety Of Life At Sea – conversion under IMO concerning safety for personnel and
ships at sea
A valve is a device that controls the flow of materials (gases, fluidized solids,
slurries, or liquids) by opening, closing, or partially obstructing various
passageways.
This manual refers to quarter-turn valves with a 90 degrees movement between
Closed and Open position.
The flange on top of the valve which integrates the actuator. Key parameters to
be aware of are summarized in 3.3 Technical specification on page 17.
As an example, most butterfly valves comprise four screw holes for the flange
integration and a square stem for valve operation.
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About this user manual
This user manual describes the guidelines for installation, setup and operation of
QT50 in a valve control system. The valid products for this manual are listed in
Table 2: Product overview on page 6.
Chapter 1 introduces the product and this manual.
This chapter is intended for all reader groups.
Chapter 2 informs on health, safety and environment issues.
The reader group for this chapter is for supervisors, technical support and
technical management personnel.
Chapter 3 gives a product description including the mechanical construction of
the actuator, technical specifications and a functional description. There is also
an overview of technical issues that should be considered in the design and
planning phase for the installation.
The reader group for this chapter is supervisors, project and engineering
personnel.
Chapter 4 covers the mechanical installation on valves and the electrical
installation of power and control signal.
The reader group for this chapter is installation personnel.
Chapter 5 covers the use of the actuator such as how to use the manual
emergency operation. There is also an overview of error messages and a
troubleshooting overview.
The reader group for this chapter is operators.
Introduction
Chapter 6 covers maintenance, inspection and repair of the actuator.
The reader group for this chapter is operators, technical support and
management personnel.
Chapter 7 gives more in-depth technical information on the product.
The reader group for this chapter is technical support and management
personnel.
Chapter 8 gives ordering information.
The reader group for this chapter is technical support and management
personnel.
Appendix A gives an overview of torque recommendations.
The reader group for this chapter is installation personnel.
Appendix B includes the document “Earthing Methodology in Maritime
Installations” The reader group for this chapter is installation personnel,
technical support and technical management personnel.
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HSE Information
This chapter includes safety information that the user needs to know to operate
the equipment without doing harm to personnel or the environment.
The operation of the equipment is safe provided that the recommended
operating procedures are followed. There are specific hazards however
that need to be addressed so that the user knows how to deal with them.
Electrical installations shall be designed and installed by personnel with
certifications according to applicable laws and regulations. Ensure that all
such work is done according to applicable laws and regulations.
Service must always be performed by trained personnel.
Care and cleaning of actuator
Caution! Do not use ammonia, alkaline cleaners, lye or strong acid for cleaning as
this can damage the protective anodized layer of the product surface.
Caution! Do not use high pressure power washer directly on the actuators as the
product is not IP69K rated.
Disposal and waste handling
All batteries and electronic equipment may contain substances harmful to the
environment. After removing used equipment, return them for disposal
according to local governmental guidelines.
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HSE Information
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Product Description
QT50 is the smallest quarter-turn actuator in the Eltorque portfolio. It has been
used on a various of vessel types on butterfly and ball valves. It is equipped with
a magnetic position sensor that gives a correct position feedback, even after a
power outage. It can be manually operated by the means of a fixed hand wheel
located under the cover on top of the actuator without the need for external
tools.
QT50 actuator
The QT50 actuator is suitable for valves with torque requirements of 10 - 50 Nm,
it can be delivered with CANopen, Analog and Digital communication.
The actuator is designed to be operational during a temporary submerged
situation, see details for housing in Table 5: System performance parameters for
QT50 actuators on page 17.
Caution! Remember to have the actuator checked by Eltorque after all submerged
situations to keep the warranty.
Figure 2: QT50 mounted on valve
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Product Description
Actuator control system examples
The actuator must be integrated with the main control system in one of two
ways:
Directly to the main control system. In this case it is important to consider
the communication protocol.
Through a stand-alone sub-system delivered by Eltorque. This is a
standardized hardware and software platform tailored for Eltorque actuators.
The solution illustrated below show a serial connection with the Eltorque Hybrid
Marine Cable. This cable can be used with the CANopen communication
interface. In addition, QT50 actuators support Digital and Analog connections.
Figure 3 below shows Eltorque actuators that are connected to a cabinet with
Eltorque valve control system (E-VCS). In this example, pump starters are also
connected to the E-VCS. Other equipment, such as sensors can also be connected
to the E-VCS. The E-VCS includes an HMI interface on the cabinet and can also
support an HMI interface on main control level.
Figure 3: Eltorque Valve Control System (E-VCS) with valve and pump control
Figure 4 below shows Eltorque actuators that are connected directly to a
customer specific PLC, PC or other control unit.On a system level, the PLC, PC or
Controller must be compliant with Eltorque communication protocol according to
Eltorque System Integrators Manual, see Table 3: Related documentation on page
8. Please contact your Eltorque representative for further information.
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Product Description
Figure 4: Eltorque actuator loop connected to Integrated Automation Control System (IAS or ICS)
Technical specification
Table 5: System performance parameters for QT50 actuators
Feature Value
Torque options 10,20,30,40 or 50 Nm
Closing time options 0 - 90° movement
Valve spindle adapter
Max. allowed valve
flange and related
torque
(Ref. ISO5211) 2001E
Valve applications Quarter-turn.
Weight 4.5 kg/ 9,92 lb
Dimensions (HxWxD)
Manual operation –
number of turns
Color Black
Housing
Storage temperature
5, 8 or 15 sec. Recommended 8 sec.
SQ11 depth 12 mm /0.5 in. For valve stem with free height more than
12 mm/0.5 in, a distance ring is needed, see chapter 3.9.9 on page 29.
F04
63 Nm 125 Nm 250 NM
Examples:
Butterfly DN25-DN80 PN16
163 x 118 x 164 mm
9.02 x 6.14 x 8.23 in
19 turns on hand-wheel = 90 movement on valve
IPx6 and IP x8 (10 m – 72 hours/32 ft 9.7 in – 72 hours).
Should not be exposed to corrosive chemicals
External materials: anodized aluminum and flame-retardant PA.
5 - 35C/41 - 95F
F05 F07
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Product Description
Feature Value
Operating temperature
Temperature protection Motor current is switched off in case of over-heating.
Power supply 1-phase,110 – 230V AC, 50/60 Hz, Max 140 VA
Power consumption
Opening and closing
with max torque
Power consumption
Standby (with 70%
holding torque
Inrush current (worst
case)
Duty performance
According to AN 15714-
1 / IEC 60034-1
Endurance
According to EN 15712-
2
Cable glands
Communication
Interfaces options
Position sensor
Configuration
Configurable parameters
Manual operation
Cover of hand-wheel
Self-lock
Certification/type
approval
-25 to 70C/-13 to 158F
40 VA, PF 0.5
11VA, PF 0.3
During start-up the inrush current might be high. See chapter 7.1 for
more information. Eltorque can also assist with experience data for
product types and fuse selection.
Class A – 10 cycles per hour/S2 – 15 min.
Classes A and B – 10 000 cycles per lifetime.
Up to four M20 glands allows serial connection of power supply and
signal wiring. Use IP68 (10 m 72 hours) glands for all wires.
CANopen allows positioning and other extended control of the
actuator. The absolute maximum theoretical number of devices allowed
on the bus is 127, but the actual number of nodes is limited by the
baud-rate and the cable quality. Eltorque recommends a maximum of
80 nodes on 500 m/1660ft cable.
Digital 2 DI (Open-Close) and 3 D0 (Open-Close-Alarm).
Analog Al (Set position) A0 (Feedback position) and D0 (Alarm) (4-20
mA) AI/A0 signal.
Resolution: 360°/12bit = 0.35156°/bit
Integral Non-Linearity (INL): typ. ± 0.8°
Differential Non-Linearity (DNL): ± 0.176°
Output shaft accuracy: 1%
Position feedback not corrupted by power outage.
USB connection to PC with Eltorque E3C. Special configuration cable is
needed, see E3C User Manual.
Open and Closed positions. Actuator speed, torque and valve position
regions. Inverted IO or bus parameters depending on the applied
communication interface.
Standard feature using fixed hand-wheel. Mechanical valve position
indicator. No need for external tools.
Can be removed and refitted without tools. Protects mechanism against
mechanical damage and foreign objects. The actuator must not be
lifted by the top cover.
The QT50 is equipped with a mechanical self-locking device that locks
the valve to the target position when the actuator movement command
is completed.
Type approved by DNV-GL.
All valid certificates are listed on www.eltorque.no – support – technical
support – certificates.
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Feature Value
Green: Open
Blinking green: Moving towards open
Yellow: Close
Position indicator light
Blinking yellow: Moving towards close
Blinking red: Alarm
Blue: Reached position between Open and Close (for regulation
purposes)
Actuator Components
QT50 External construction
Product Description
Figure 5: External Construction
Communication interface
The communication interface boards provide connectors for power, control
signals and configuration media.
The harness connects directly to the interface boards and are easily pulled out in
order to make connections, see Figure 6 for more details.
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Product Description
Figure 6: Connection harness (with CANopen connector)
In older versions of the QT50 the connections must be done directly on the
connection board. This is described in version 1.9 of this manual, (document ID
1321 v. 1.9).
The QT50 can be delivered with the following interfaces.
CANopen – interface using the CAN (Controller Area Network)
communications standard. Eltorque recommends a maximum of 80 nodes on
500 m / 1660 ft. cable.
Digital – interface allowing simple Open & Close operation of valves.
Actuators with Digital Interface can be controlled directly from a conventional
panel with buttons/switches and indicator lamps. Alternatively, it can be
controlled from a PLC with digital inputs and outputs.
Analog – interface allowing regulating valves where positioning of the valve
is needed. The actuator provides continuous feedback of its actual position,
for comparison between desired and actual position.
Note! The QT50 does not provide a Modbus interface. If a Modbus interface is required,
please contact your Eltorque representative to find a solution.
More technical details on the different communication interfaces is given in
Chapter 7 Technical Details on page 51.
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Labelling
The label on the actuator housing states the type of communication interface
box in the unit as well as the specifications for torque, temperature, power
supply input and IP rating. The production serial number and the production date
are also included.
Product Description
Cabling
The cabling specifications depend on the type of communication interface to be
used.
The QT50 has four threaded M20 holes for cable glands. When ordering it is
important to consider factors like cable type and size, as the cable glands have a
limited cable entry range. Eltorque standard cable gland can accommodate a
cable between 8-14mm/0.32 – 0.55 in.
To maintain the Eltorque actuator’s IP encapsulation, it is important to use the
correct rated cable glands, see chapter 3.3 Technical specification on page 17
and section 4.5 Cable Gland on page 37.
The QT50 actuator has an EMC class B approval according to DNV GL 2.4,
without the use of EMC glands. They are therefore by default delivered with nonEMC glands. If you require EMC glands, please notify your sales contact when
ordering.
The default glands for the different communication interface boxes and ordering
information is given in Chapter 8.
Figure 7: QT50 Actuator label
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Product Description
Storage
If your actuator cannot be installed immediately, it must be stored it in a dry
place until you are ready to install and connect cables. The actuator does not
come prepared for long time outdoors storage when arriving from Eltorque.
Details on storage temperature is found in Table 5: System performance
parameters for QT50 actuators on page 17.
If the actuator can be mechanically installed, but not cabled, please ensure that
all glands and gland holes are thoroughly tightened to avoid ingress of moist.
The actuator’s IP rating is not valid until correctly installed.
Eltorque cannot accept responsibility for deterioration caused on site if the
actuator has been opened in ways not described as required in this manual. In
principle, the product should be powered within three years after production to
prevent components from derating. All actuators are thoroughly tested before
shipping to give trouble-free operation, if installed and commissioned properly.
Engineering
Electrical installations shall be designed and installed by personnel with
certifications according to applicable laws and regulations. Ensure that all
such work is done according to applicable laws and regulations.
It important to consider the number of actuators in both the power loop and the
signal loop when using bus-based communication. The loop list should be
finalized and approved before installation of the cable is started.
In case of power loss, none of the actuators in that power loop can be remotely
operated. In case of a signal loss, none of the actuators on that signal loop can
be remotely operated. Manual operation is however possible in both scenarios.
Power circuit design
Power consumption
The power consumption varies depending on whether the actuator is in standby
mode or is running, see Table 5: System performance parameters for QT50
actuators on page 17. Inrush current after loss of power might be high. It is
therefore recommended to design the circuit in accordance with information
given in chapter 7.1. The tripping energy of the fuse must be confirmed to
ensure a trouble-free operation. Eltorque have done calculations and testing and
have a recommendation for the number of actuators on different fuse
characteristics and sizes. Feel free to contact your local Eltorque representative
for more information.
Duty performance
Eltorque actuators may be used according to IEC 60034-1 duty type S2.
Duty performance as defined by EN 15714-2
Industrial Valves – Actuators, chapter 4.7:
For class A - ON/OFF operation, duty performance is defined as the minimum
number of cycles per hour, where "one cycle consists of nominal 90° angular
travel in both directions (i.e. 90° to open + 90° to close), based on an average
load of at least 30 % of the rated torque with the ability to transmit 100 % of the
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Product Description
rated torque for at least 5 % at each end of travel, with a cumulative operating
time not exceeding 15 minutes in one hour." (EN 15714-2, chapter 4.7.2.2, a.).
For class B - inching/positioning, duty performance is defined as the minimum
number of starts per hour, where "one start consists of a movement of at least 1°
in either direction, with a load of at least 30 % of the rated torque. The cyclic
duration factor (i.e. the ratio between the running period and total period)
shall be not less than 25 % (e.g. 1 s. running and 3 s. resting)" (EN 15714-2,
chapter 4.7.2.2, b.)
For classes C and D - modulating and continuous modulating, duty performance
is defined as the minimum number of starts per hour, where "one start consists
of a movement of at least 1°. in either direction, with a load of at least 30 % of
the rated torque" (EN 15714-2, chapter 4.7.2.2, c.).
Duty performance as defined by IEC 60034-1
Rotating electrical machines, chapter 4.2:
Duty type S2: "Operation at constant load for a given time, less than that
required to reach thermal equilibrium, followed by a time de-energized and at
rest of sufficient duration to re-establish machine temperatures within 2 K of the
coolant temperature." (IEC 60034-1, chapter 4.2.2)
Endurance
QT50 actuators may be used classes A and B – 10 000 cycles per lifetime.
Endurance is defined according to EN 15714-2, chapter 4.1 and Annex A.
For classes A and B - ON/OFF operation and inching/positioning, endurance
defines the minimum number of cycles to be endured per life time, where "one
cycle consists of nominal 90°. angular travel in both directions (i.e. 90° to open +
90° to close), based on an average load of at least 30 % of the rated torque with
the ability to transmit 100 % of the rated torque for at least 5 % at each end of
travel, with a cumulative operating time not exceeding 15 minutes in one hour."
(EN 15714-2, chapter 4.1.2, b.)
For class B - inching/positioning, duty performance is defined as the minimum
number of starts per hour, where "one start consists of a movement of at least 1°
in either direction, with a load of at least 30 % of the rated torque.
The cyclic duration factor (i.e. the ratio between the running period and total
period) shall be not less than 25 % (e.g. 1 sec running and 3 sec resting)" (EN
15714-2, chapter 4.7.2.2, b.)
Shielding considerations
Shielded cables and appropriate cable glands should be used if the actuator is
installed near to or connected in the same network as equipment emitting high
levels of disturbances. Communication interface considerations
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Product Description
CANopen system
Figure 8: CANopen bus network
Note! Eltorque recommends a maximum of 80 nodes on 500 m/1660 ft. cable.
Note! The cable between the nodes can be maximum 500m with the Eltorque Hybrid
Marine Cable. For other lengths check with your local Eltorque representative.
Table 6: Cable requirements and recommendations for CANopen system
Cable parameter Cable requirements and recommendations
Number of conductors 1 (GND) + twisted pair for CAN_H and CAN_L signals
Length related
resistance / Cross
section
Cable length (affects
communication speed)
Shield
Termination resistor Nominal 120 Ω Both ends must be connected. Internal
Length related resistance; typical 70 mΩ/m Max 100 m/m
(typical 70 mΩ/ 3ft 3.37in. Max 100 m/3ft 3.37 in)
Normally equivalent to 0.5–1.5 mm2/0.02 – 0.06 in2.
Maximum 500m/1650 ft.
EMC glands are not mandatory but is recommended in case
the actuator is placed in conjunction with equipment
emitting high levels of disturbances.
resistors are recommended used. For ordering information
see Chapter 8 on page 55.
Analog systems
For the analog interface, both the input and the outputs are passive. Analog has
two outputs. One Alarm output and one Position output (4 to 20 mA) (see
Table 7 for details).
Table 7: Relay outputs – analog interfaces
Function Value
Rated voltage 24 VAC/VDC
Max. switching voltage 24 VAC/VDC
Rated current 1A
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Product Description
Function Value
Limiting continuous current 1A
Breaking capacity Max. 48 VA (1A)
Digital systems
For the digital interface, the digital outputs are passive, and the digital inputs are
active with a 5 V/20 mA rating. The digital output must be powered (see Table 8
for details).
Table 8: Relay outputs – digital interfaces
Function Value
Rated voltage 48V AC/VDC
Max. switching voltage 48V AC/VDC
Rated current 1A
Limiting continuous current 1A
Breaking capacity Max. 48 VA (1A)
Table 9: Cable requirements and recommendations digital and analog
systems
Cable parameter Required/ Recommended
Number of conductors 6 recommended twisted pair
Cross section 0.5 - 1.5 mm2/0.0197 – 0.0591 in2
Shield
Not mandatory but is recommended in case the
actuator is placed in conjunction with equipment
emitting high levels of disturbances.
Installations with Eltorque Hybrid Marine Cable
Bus connection of actuators is undoubtedly the most cost-effective installation
methodology. Eltorque has developed a ground-breaking Hybrid CANbus / Power
cable especially designed for maritime applications.
The Eltorque Hybrid Marine Cable combines signal and power cable in a hybrid
cable with maritime type approval. The cable can only be used for installations
User Manual QT50 Doc ID 1321 version 2.0 Sept. 2018
Figure 9: Bus connection of actuators
Page 25 of 62
Product Description
with CANopen for the QT50 actuator. When this cable is used, only two cable
glands are required, see Chapter 8 Ordering Information and Recommended
Spare Parts.
Further description of the Hybrid Marine Cable is found in the Hybrid Marine
Cable datasheet, Eltorque document ID 1982. The datasheet is available on
www.eltorque.no – Products – System components.
Installation with traditional cabling
With traditional cabling, four glands are required to accommodate both power
and signal cables. When ordering please inform if you intend to use the hybrid
marine cable or a standard cable.
Figure 10: Hybrid Marine Cable
Orientation
The actuator can freely be mounted both vertically standing or horizontally lying
to the side. An upside-down hanging position is also possible.
Page 26 of 62 User Manual QT50 Doc ID 1321 version 2.0 Sept. 2018
Space requirements
Actuator dimensions
Product Description
Figure 11: QT50 dimensions
Service space
During planning, please ensure sufficient space above and around the actuator
for installation, service and manual operation.
There must be a minimum of 150 mm / 5.90 in space above and 100 mm / 3.94
in to the sides of the actuator to accommodate room for installation, operation
and service. In front of actuator where you access the communication interface
connections, there should be at least 200 mm /7.87 in.
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Product Description
Figure 12: QT50 Space requirements for installation, service and manual operation
Page 28 of 62 User Manual QT50 Doc ID 1321 version 2.0 Sept. 2018
Product Description
Mounting
The actuators provide fastening holes of different dimension to facilitate
mounting on different types of valves, see details in Figure 15: QT50 Valve
flange fastening holes on pages 32.
Information when an actuator/valve adaption is needed.
Note! Due to interference between holes for F04 and F05, the F04 flange has been
adjusted 45 degrees compared to F05 and F07. Please consider this when
planning, or plan for adapters to offset 45 degrees.
Note! It is important to verify the stem orientation before ordering. Changing the
orientation on the product after delivery are a delicate process not recommended
for non-Eltorque personnel. Figure 13 shows the difference between the two.
When the actuator and the valve do not have a natural match, it is necessary to
use an adapter. There are various adapters available, but the two most common
ones are the square reducer and the flange + stem adapter. For the QT50, the
majority of valves require an adapter plate. The required plate can be found in
table 10 below.
When buying actuator and valves together from Eltorque, this is handled by our
project personnel. If you order just the actuator take care to verify the critical
dimensions and whether the valve has parallel or standard configuration. Square
reducers might be necessary. The type of reducer to be used depends on the
valve type, please contact your Eltorque representative or Eltorque support for
further details.
Table 10 Adapter plate and screws
Valve stem height Adapter article
< 12mm NA 20-25mm F04/F05/F07
>12-15mm 55227 25-30mm F04/F05/F07
>15-19mm 55228 25-35mm F04/F05/F07
>19-25mm 55229 30-40mm F04/F05/F07
>25-30mm 55230 35-45mm F04/F05/F07
>30-34mm 55224 40-50mm F07
(1) Screw lengths must be confirmed by using correct valve flange height,
adapter thickness, washer and hole depth (figure 15).
number
Typical length
of screws (1)
Flange
supported by
adapter
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Product Description
The actuator must have sufficient torque to operate the valve in all situations
with an acceptable safety margin. Valve type, temperature, operating pressure,
medium density and viscosity and the medium’s effect on the valve friction are
among the variables that need to be evaluated. A change in any of these
variables may change the required operating torque. Preferable a torque table
with all parameters should be used, but for an electrical actuator, the output
torque is constant, reducing the considerations to be made. Using the break to
open (BTO) value usually gives a correctly sized actuator. The break to open
torque is defined as the torque required to move the valve out of the seat.
Figure 13: QT 50 Settings for closed position
Torque considerations for valve and actuator
Be aware that the MAST of the valve needs to be verified to prevent damage to
the stem. Eltorque can assist with the necessary experience in selecting the
correct size of the actuators for the valve.
Closing time
For the QT50 the closing time is configurable within a predesigned interval. The
opening and closing profiles are shown in Table 5: System performance
parameters for QT50 actuators on page 17.
For the QT50, the closing time is configurable within a predesigned interval.
Hence, the opening/closing profile can be optimized to fit most system
specifications.
Configuration
The actuator is configured from a computer and it is delivered with the
configuration specified by the customer. Eltorque provides the E3C
configuration software which runs on a standard PC and the corresponding User
Manual E3C Software.
The software can be downloaded from the Eltorque website www.eltorque.no –
Technical Support – Software.
The Eltorque Configuration Cable is needed to connect the actuator to the
configuration PC/PLC. It must be ordered separately, see Chapter 8 Ordering
Information and Recommended Spare Parts on page 55.
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Mounting and Installation
Instructions
Mounting the actuator on the valve
Keep hands away from the valve flanges
Caution! Do not lift the actuator by the top cover.
Mounting procedure QT50
Mount the QT50 in the following way:
Mounting and Installation Instructions
1. Apply multi-purpose corrosion protection grease (kind suited for the
materials) on the valve spindle to ease mounting and avoid corrosion.
2. Make sure that the valve and actuator are placed in the same position
(closed). See figure 13.
3. Lift the actuator onto the valve; align its valve adapter with the valve spindle
and lower the actuator onto the valve flange.
4. Ensure that the spindle and valve mounting holes fit directly to the actuator.
5. In cases where adapters are needed reference is made to table 10, page 29.
6. Check that the actuator is correctly positioned on the valve.
7. If needed, remove the top cover and use the hand wheel to turn the actuator
and align the fastening holes of the valve flanges, see chapter 4.1 Mounting
the actuator on the valve on page 31.
8. Insert the fastening screws and use washers according to specifications. For
screw dimensions see Figure 15: QT50 Valve flange fastening holes on page
32 to verify correct length bolts for your valve. An overview of typical length
are given in table 10, page 29 Adapter plate and screws.
9. Tighten fastening screws to the specified torque, see Table 13: Screw torque
on page 57.
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Mounting and Installation Instructions
Figure 14: Mounting of QT50 on actuator
Valve flange fastening holes
The actuator provides fastening holes of different dimension to facilitate
mounting on different types of valves.
Page 32 of 62 User Manual QT50 Doc ID 1321 version 2.0 Sept. 2018
Figure 15: QT50 Valve flange fastening holes
Mounting and Installation Instructions
Cable connection overview
Ensure that electricians have certifications according to applicable laws
and regulations before being allowed to do any work on installations.
The supply voltage must be 1-phase, 110 – 230V AC, 50/60 Hz,
Max 140 VA.
Make sure the fuses are disconnected before you open the actuator.
Caution! When using stranded wires, make sure that all wire strands are properly
fastened in the spring connector. Using ferrules is not recommended.
If ferrules are used the sole responsibility for a correct installation lies on
the installing party.
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Mounting and Installation Instructions
Figure 16: Hatch front view
Note! On older versions of the QT50 the screws may not be attached to the hatch. Be
careful not to lose them.
Note! When removing the lid, take care not to lose the gasket in the hatch.
Due to a design improvement of the QT50, there are two different ways of
connection. The latest version is a harness where all connections are made on
the outside of the actuator, while the PCB board is inside. The installation
procedure for an actuator without a harness is described in the older version of
this manual, QT50 User Manual, version 1.9. Verify which version to use and
follow the procedure accordingly.
1. Loosen the four hatch screws on the side of the QT50.
2. Remove the lid by pulling it straight out.
3. Pull the harness carefully out to access the connectors.
4. Strip all wire-ends to 8 – 9 mm/0.31 – 0.35 in.
5. Verify that the cable glands are properly mounted, see chapter 0
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Mounting and Installation Instructions
6. Cable glands.
7. Install the power supply cables through the cable glands according to the
description in chapter 0 and connect them to the L, N and G/ PE terminals
on the power connector in the hatch, see chapter 4.6 Power supply
connection on page 37.
8. Install the control signal cables through the cable glands on the left and
connect them according to the interface terminals available on the
harness. See chapter4.8 Communication connection interfaces on page
39.
9. Connect the configuration medium to X2 the configuration connector if
applicable.
10. Put the harness back into the housing. Verify that the cables fit loosely
into the housing and leave space for the hatch to be reattached.
11. Replace the hatch, taking care to position the gasket correctly.
12. Fasten the hatch and tighten the fastening screws, torque 1.8 Nm.
Figure 17: CANopen harness
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Mounting and Installation Instructions
Figure 18: Digital/analog harness
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Cable glands
For trouble-free operation, it is important to install the glands and cable
correctly. Eltorque’s IP certification may be voided if the instructions of the
glands are not followed.
Note! Support the cable to prevent it from twisting
1. Ensure that the correct cable and gland are at hand.
2. Be sure to allow sufficient length striped cable.
3. Pass the cable through the cable gland and ensure that the cable is
correctly positioned in the gland. Eltorque recommends having a 5mm
cable edge over the end of the gland.
4. Hold the body of the gland in position with a spanner (24mm / 0.94 in.)
or wrench to prevent rotation and tighten the back-nut to min 5Nm,
maximum 15Nm.
5. Finalize the gland installation with a visual verification to ensure correct
positioning of all parts.
6. For other glands follow the instructions from the supplier.
Mounting and Installation Instructions
Figure 19: Mounting of gland
Power supply connection
Each actuator has a double power supply connector enabling bus power
connection of multiple actuators. Verify that the voltage levels are in accordance
to the products requirements.
All terminals can accommodate:
Fine-stranded conductor
0.25 … 2.5 mm²/0.0098 - 0.0984 in2.
If ferrules are used the sole responsibility for a correct installation lies on
the installing party.
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Mounting and Installation Instructions
Figure 20: Power connection
Figure 21: Multiple actuators with serial power connection
Refer to Appendix B Earthing Methods in Maritime Installations on page 59 for
information on connection of screen for the last actuator in the loop (actuator N)
Grounding (earthing)
For maximum personnel and equipment protection, the installation shall
comply with “guidelines for earthing in maritime installations” published
by The Norwegian Electrical Safety Directorate. Failing to do so may void
the warranty.
Exception: Field equipment shall be grounded through the supply cable.
All bare metal wires, screens or others not covered by the terminal shall be
thoroughly covered in a shrink tube to avoid unintended contact between wires,
housing or similar.
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Mounting and Installation Instructions
Only one conductor is allowed in each terminal of a terminal block/row for
external connections. This is not related to terminals that are integrated parts of
internal components of the equipment (such as relays and contactors).
Also see Appendix 2 Earthing Methods in Maritime Installations on page 59.
Note! Not following the recommended earthing guidelines may result in unwanted
system behaviour.
Communication connection interfaces
Connection procedure
Strip the wire-end to 8 –9 mm (0.31in – 0.35in).
Insert the wires according to the labelling.
All terminals can accommodate wires of cross section 0.5 – 1.5 mm2 / 0.02 - 0.06
in2. The cable must follow the ISO 11898-2 standard.
If ferrules are used the sole responsibility for a correct installation lies on
the installing party.
CANopen interface connection
To terminate the CANopen, insert the resistor between can-terminals 1 and 2 as
shown in Figure 22: Termination of CANopen . For ordering information see
Chapter 8 on page 55.
Figure 22: Termination of CANopen
The resistance of the CAN loop should be 120 Ω. If the installation is started in
one end of the cable it is a good idea to measure the resistance after each new
actuator that is included in the loop, then you are sure that the installation is
correct when all actuators are included.
For information on how to set the node ID, please consult the Eltorque E3C
Manual.
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Mounting and Installation Instructions
Figure 23: CANopen connection harness
Figure 24: Example of CANopen network connections, the controller is placed in the end with terminal resistor
Refer to Appendix B Earthing Methods in Maritime Installations on page 59 for
information on connection of screen for the last actuator in the loop (actuator N)
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Mounting and Installation Instructions
Digital interface connection
Specifications for IOs are given in chapter 3.9.5, table 8
Caution! The Common input terminal (#1 on X1) is active and has an internal
power supply of 15 V/ 50 mA. Do not attempt to connect an external
supply to this terminal as it can damage the communication interface
box. Digital outputs are passive and need external power supply for
operation of equipment.
Figure 25: Digital connection interface terminals
The digital interface can be used in various control circuits as shown below:
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Mounting and Installation Instructions
Figure 26: Digital interface options
Analog interface connections
Specifications for IOs are given in chapter 3.9.5, table 7.
Caution! Analog input is damaged by incorrect polarity
Figure 27: Analog connection interface terminals
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Mounting and Installation Instructions
Figure 28: Example of 4-20 mA analog control circuit.
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Mounting and Installation Instructions
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Operation
Eltorque actuators can be operated in several ways:
As part of a system directly via IAS
Via an Eltorque VCS which controls the unit
Using the E3C tool, which is described in the EC3 Manual
Emergency operation where you can operate the actuator manually
The control commands and procedures depend on the type of control system
that is used. In this chapter the manual emergency operation is described.
Manual operation
In case of power failure, control system error or another fault preventing normal
operation of the actuator, it is possible to manually operate the actuator without
the need of additional tools.
Caution! Do not subject the hand-wheel to more than the valve MAST or maximum
1.0Nm on the handwheel, as you may damage the actuator or valve. Below is
a table showing approximate output as a factor of input.
Table 11 Input and output torque
Input torque on handwheel Output torque QT50
0.5Nm 25Nm
1.0Nm 50Nm
Note! A manual operation will most likely result in an error message in the system.
1. Remove the hand-wheel cover by grabbing the tabs and pulling it straight
up,
2. Turn the hand-wheel clockwise to close or counter-clockwise to open the
valve. The valve position can be seen on the visual indicator on the side
of the actuator, see Figure 29: Manual operation.
3. When the manual operation is completed, refit the hand-wheel cover by
pressing it down until it stops against the actuator’s top cover.
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Operation
Figure 29: Manual operation
Error alarms and error handling
The following subsections describe what triggers an alarm, reactions from the
actuator and how the alarm is reset.
Note! To ensure a trouble free commissioning of the systems, it is important to install
the products according to regulations and Eltorque Guidelines. Failing to do so
may result in unwanted system behavior.
GENERAL alarm
Trigger conditions: One or more of the alarms POSITION UNDEFINED,
TEMPERATURE or TORQUE is active.
Reaction from actuator: None for the GENERAL alarm itself, but the other
alarms that are active have reactions.
Reset conditions: The alarms POSITION UNDEFINED, TEMPERATURE and
TORQUE must be inactive.
POSITION UNDEFINED alarm
Trigger conditions: The outgoing shaft of the actuator is out of range.
Reaction from actuator: None besides an active alarm.
Reset conditions: The outgoing shaft must be run back within range.
Valve percent position
Valve percent position is a [0%, 100%] value. A value of 0% corresponds to
CLOSED position, while a value of 100% corresponds to an OPEN position. Seen
from the top of the actuator, the outgoing shaft moves in a counter-clock-wise
(CCW) direction from CLOSED position to OPEN position (see Figure 29: Manual
operation on page 46).
Position encoder
A position encoder is connected to the outgoing shaft of the actuator and maps
positions from 0° to 359° on the outgoing shaft. For each unit, correct CLOSED
and OPEN positions for the valve must be configured in the firmware of the
actuator for proper functionality.
The position encoder reads out the absolute positional information. This means
that if the outgoing shaft is moved while the actuator is powered off, the correct
position is still shown when the actuator is powered on again.
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Operation
TEMPERATURE alarm
Trigger conditions: The alarm is activated when the temperature of the
actuator is near the max operating temperature of the internal electronics.
This may happen if the environmental temperature is higher than the max
rated temperature for the actuator or if the actuator has been run with a
higher duty cycle than specified in section 3.3.
Reaction from actuator: The voltage to the motor is cut off if the
temperature increases above the max operating temperature of the internal
electronics. The motor can run again when the temperature alarm is inactive.
Reset conditions: The temperature must decrease well below the max
operating temperature of the internal electronics.
TORQUE alarm
Trigger conditions: The actuator has been running but has stopped
unexpectedly. This may be caused by too high braking torque on the
outgoing shaft or failure in the motor control and feedback system.
Reaction from actuator: The actuator stops running.
Reset conditions: A new position command (OPEN, CLOSE, GOTO, STOP). The
motor can then run again, given that the trigger conditions for the alarm has
disappeared.
Troubleshooting
The Eltorque actuator is a robust maintenance free product, but you might
encounter some issues with the unit. Below is a list of the most common issues
that may occur and how to solve them. If you still have problems, please contact
Eltorque support for further help.
Table 12: Troubleshooting overview
Problem description Cause & solution
No response from actuator either on the control
system or if you connect with E3C. No LED
indicator.
The actuator’s alarm output is active; on a
CANopen system, it gives torque alarm.
The actuator attempts to move valve when a
control signal is given.
No power supply, check fuses and wiring.
Supply voltage can be checked using a voltage
meter.
L-N voltage should be 110-230 V AC.
The valve operation torque is too high, please
check the torque by manual operation.
Be aware that foreign objects in the pipe can
block the valve and that valve torque changes
over time.
OR
The actuator torque has been set too low;
increase it by using E3C as described in section
4.7
On CANopen control systems, the torque can be
adjusted via the CANopen communication.
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Operation
Problem description Cause & solution
The actuator’s alarm output is active; on a
CANopen system, it gives temperature alarm.
The actuator does not respond to control
signals.
The actuator’s alarm output is active; on a
CANopen system, it gives status signal
emergency, and the actuator is not being
operated manually.
The actuator does not respond to control
signals. Indicator LED is on.
On a fieldbus system, the actuator is not
available.
An actuator with CANopen interface does not
respond to control signals.
The actuator responds normally when tested
with E3C.
An actuator with digital or analog interface does
not respond normally to control signals.
The actuator responds normally when tested
with E3C.
The actuator does not respond neither to control
signals nor when tested with E3C.
The actuator’s power supply is verified with
voltage meter. LED indicator is on.
After replacement of the interface, the actuator
does not operate correctly.
The valve is not properly closed (leaking), and
the actuator is indicating status closed or alarm
(position error on fieldbus)
The actuator is over-heated, and the motor
current is shut down to prevent damage.
Make sure surrounding temperature is within
limits and that the duty type requirements are
followed.
See section 5.2 Error alarms and error handling
on page 46for more details.
The self-locking device fails to lock and hold the
valve into its commanded position.
Check that the position is configured correctly,
and that the torque setting is sufficient for the
valve.
Contact the local Eltorque agent for support if
required.
Faulty control system, please ask system vendor
for support.
OR
Problem with control signal wiring, please
contact the local Eltorque agent for support.
Fieldbus settings may be incorrect. Please check
configuration with E3C.
OR
Fieldbus control system is not wired or
configured correctly.
Digital or analog control system is not wired or
configured correctly.
The control interface is most likely defective and
must be replaced.
OR
Problem with the control signal wiring, please
contact the local Eltorque agent for support.
The interface has not been configured correctly,
please refer to the E3C User Manual.
Contact your local Eltorque agent for support if
required.
Check that the closed position setting is
configured correctly. For butterfly valves, make
sure that the disk aligns in the middle of the
gasket. Manually operate the actuator to the
proper closed position and set new closed
position with E3C or fieldbus. If leakage persist,
please check valve seat face.
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Maintenance
The QT50 actuators are in principle maintenance-free. All bearings and gears are
lifetime lubricated and components are designed to last throughout the actuator’s
lifetime. It is however recommended that the actuator is inspected regularly to reveal
any damages caused by for example mechanical impact or corrosion.
Maintenance overview
Inspection
Lubrication
Care and cleaning of anodizing
Inspection
The actuators should be regularly inspected once a year:
- Check that the bolts connecting the actuator and valve together are fastened
according to required torque.
- Check that the operation shaft is lubricated. If it seems to be dry, follow the
procedure in section 6.4.
- Check for corrosion or other physical damage.
If the actuator has been submerged to sea water, remember to have it checked by
Eltorque to keep the warranty.
Tightening of valve/ actuator bolts
See Appendix 1 Torque and Screw Recommendations on page 57.
Lubrication
The manual operation shaft seal should be lubricated if they appear to be dry. Use
suitable silicone lubricants for O-rings such as MOLYKOTE 55 O-RING grease or Super
Lube silicone lubricating compound.
Care and cleaning of anodizing
Caution! Do not use ammonia, alkaline cleaners, lye or strong acid for cleaning
For cleaning purposes use organic solvents such as mild soap or detergent, alcohol,
acetone or MEK (methyl ethyl ketone).
Caution! Do not use high pressure power washer directly on the actuators as the
product is not IP69K rated.
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Maintenance
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Technical Details
Power consumption
The powers inrush current depends on the mains voltage and switch on timing
with the mains phase. In a worst-case scenario (Phase 90 degrees and 130VAC),
the current peak can reach as high as 20A (Figure 35). Eltorque recommends
having a skilled electrical engineer calculate the appropriate number of actuators
on a specific loop or UPS. Eltorque can also assist with some experience data on
request.
Figure 30: Inrush current (worst case example, each square equals 10ms and 5A)
Surface treatment
Eltorque actuators have been designed to withstand harsh environments. All
products have undergone and passed severe 700 hrs. salt mist tests. Different
types of surface treatment have been used. Aluminum parts are typically
anodized or CED coated, and steel parts are treated with Dacromet and painted.
Communication interface
The Eltorque communication interface consists of three main modules:
Power supply
Motor control
Interface
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Technical Details
For more technical information about the Eltorque CANopen communication,
refer to the “System Integrators Manual CANopen interface” ID 1691.
Figure 31: Communication interface schematics
CANopen interface
Digital interface
The QT Digital Interface can run the outgoing shaft to CLOSED and OPEN
positions. The feedback from the actuator indicates if the actuator is in
CLOSED/OPEN position and if the actuator has an error. The table below
summarizes the digital interface functions.
The following functions are available:
CLOSE command and OPEN command (inputs)
Trigged by a positive edge followed by an active signal for at least 100
Ms.
Actuator will stop and set ALARM status if OPEN signal is activated during
a CLOSE command, or CLOSE signal is activated during an OPEN
command.
CLOS status and OPEN status (outputs)
ALARM status (output)
Activated if GENERAL ALARM is trigged.
The following functions are available:
CLOSE and OPEN command (inputs):
Is trigged by a positive edge followed by an active signal for at least 100
Ms.
The actuator stops and sets ALARM status if OPEN signal is activated
during a CLOSE command, or CLOSE signal is activated during an OPEN
command.
CLOSE signal and OPEN signal (outputs)
ALARM signal (output)
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Technical Details
- Activated if GENERAL ALARM is triggered.
Figure 32: Digital control using buttons and lamps or PLC
As shown on the illustration above, actuators with digital interface can be
controlled directly from a conventional panel with buttons/ switches and
indicator lamps. Alternatively, it can be controlled from a controller with Digital
inputs and outputs. This allows extended functionality in terms of automatic
control and visual user interface on display.
In case both the Close and Open signals are active simultaneously, the actuator
opens. Both input and output signals can use pulses of minimum 100ms length
or constant signals.
The outputs provide feedback of the actuator’s status, such as Closed, Open
and/or Alarm.
The following failure scenarios trigger an alarm:
Manual emergency operation
Valve position out of defined operation area
Valve blocked
High temperature
Analog interface
The feedback is polarity sensitive. Both positioning and feedback signals are
analog 4-20 mA. The Analog Interface also has a digital Alarm output, which is
trigged by failures in both actuator and valve.
User Manual QT50 Doc ID 1321 version 2.0 Sept. 2018
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Technical Details
Figure 33: Analogue level and flow control.
Note! The accuracy of an actuator with analog interface is +/- 5%, (if the control signal
is 12 mA/ 50%, the valve position is in the range of 45-55%).
If a higher accuracy is needed, please consider a CANopen interface with
accuracy of +/- 0.5% instead.
Page 54 of 62 User Manual QT50 Doc ID 1321 version 2.0 Sept. 2018
Ordering Information and
Recommended Spare Parts
For spare parts, not in the list below, please contact your local Eltorque
representative.
Eltorque can deliver SDoC, MD and AFD. With reference to IMO Resolution MEPC
269(68), SOLAS Reg. II-/3-5 and IACS SC 249 or latest valid revision.
Figure 34: Actuator spare parts
Complete Actuator Unit QT 50
Part No. Description Comment (text in BOM)
50.120.1A
50.120.1AH
50.110.1A QT50 Digital Actuator with harness 3 QT50 Digital Actuator
50.130.1A QT50 Analog Actuator with harness 3 QT50 Analog Actuator
1
with 4 standard Eltorque cable glands. Nickel plated brass, IP68, Non-EMC, RoHS.
Clamping range 8 – 14mm / 0.32- 0.55 in.
2
with 2 blind cable glands, IP68, Non-EMC, RoHS
+ 2 standard Eltorque cable gland. Nickel plated brass. IP68, Non-EMC, RoHS. Clamping
range 8 – 14mm/0.32- 0.55 in.
3
with 4 blind cable glands, IP68, Non-EMC, RoHS
QT50 CANopen Actuator with
connection harness 1
QT50 CANopen Actuator with harness
and Hybrid Cable 2
QT50 CANopen Actuator
QT50 CANopen Actuator
User Manual QT50 Doc ID 1321 version 2.0 Sept. 2018
Page 55 of 62
Torque and Screw Recommendations
Accessories
Part No. Description Comment (text in BOM)
QT50F3-103 QT 50 Protective Cover for hand-wheel.
900.001
10400 Terminal resistor 120ohm Terminal resistor 120ohm
35036 Label reprint Label reprint
Eltorque Configuration cable for QTseries actuators
QT50 1.0 Hand wheel
cover
Config. Cable QT-series
Page 56 of 62 User Manual QT50 Doc ID 1321 version 2.0 Sept. 2018
Torque and Screw
M8 21.1
12/0.47
Recommendations
A. 1. Eltorque torque recommendations
The following table lists recommended torque values and minimum thread
engagement when mounting the Eltorque actuators.
Table 13: Screw torque
Thread
size
M5 5.1 7.5/0.30
M6 8.9 9/0.35
M10 41.5 15/0.59
M12 70.7 18/0.70
M16 172.6 24/0.94
M20 336.2 30/1.18
Tightening
torque.
(Nm)
Min. thread
engagement.
(mm/in.)
Ordering Information and Recommended Spare Parts
A. 2. Mounting screws and lubrication
Use A4-80 screw material and quality.
Use washer under bolt head/between bolt head and mounting flange.
Requirements: DIN 125A, minimum 200HV, A4.
Lubricate washer surface and underside of bolt head with a lubricant
resulting with a friction coefficient 0,08 to 0,14 between bolt head and
washer. Lubricant shall not contain aluminum, zinc or copper. To prevent
galling when using stainless steel fasteners, lubricant containing MoS2 is
recommended.
Use thread lock Loctite 222 or similar, on bolt threads. Be sure that the
amount applied is enough, so no water can get into thread holes after the
bolt is inserted. The thread-lock’s main purpose in this application is to serve
as a barrier, preventing sea-water to act as a catalyst between bolts and
threads in the actuator base.
User Manual QT50 Doc ID 1321 version 2.0 Sept. 2018
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Torque and Screw Recommendations
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Page 58 of 62 User Manual QT50 Doc ID 1321 version 2.0 Sept. 2018
Earthing Methods in
Maritime Installations
All bare metal wires, screens or others not covered by the terminal shall be fully
covered in shrink tube to avoid unintended contact between wires, housing or
similar.
Only one conductor is allowed in each terminal of a terminal block/row for
external connections. This is not related to terminals as integrated part of
internal components (e.g. relays, contactors) of the equipment. Two conductors
may in certain cases be used in one approved type ferrule connected to one
terminal. Contact Eltorque for approval.
Summary:
PE Earth shall be connected to the PE Earth bar in the cabinet and at the
actuator housing. PE earth shall (if possible) not be routed via the PCB to the
housing but go directly. The PCB shall be earthed to the actuator housing
from own cable.
Outer braided screen shall be connected to PE earth at both ends. Heat Shrink
Tubing shall be used on visible wires inside actuator.
Inner Screen shall be connected to IE/IS earth in the control cabinet. The
other end shall be floating in the actuator (floating thru for several items in
same loop). Heat Shrink Tubing shall be used to isolate the inner screen and
make sure that it is not in direct contact with anything inside actuator.
Drawing references:
1. The inner screen needs to be terminated inside the actuator housing.
Products that doesn’t have enough terminals available in the connector
needs a separate connector. We recommend using Wago 221 or
equivalent.
2. It is important that the outer screen is cut and not connected to the
housing for the connection between two actuators on different power
loops. Shrink tube shall be used to cover all bare wires.
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Earthing Methods in Maritime Installations
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SWBD: +47 7485 5520
info@eltorque.no
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