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Summary of Contents for Magtrol LMU 212
- Page 1 Load Monitoring Units LMU 212 and LMU 217 User’s manual Via Paolo Uccello 4 - 20148 Milano Tel +39 02 48 009 757 Fax +39 02 48 002 070 info@dspmindustria.it www.dspmindustria.it...
- Page 2 While every precaution has been exercised in the compilation of this document to ensure the accuracy of its contents, Magtrol assumes no responsibility for errors or omissions. Additionally, no liability is assumed for any damages that may result from the use of the information contained within this publication.
- Page 3 The contents of this manual are subject to change without prior notice. Should revisions be necessary, updates to all Magtrol User’s Manuals can be found at Magtrol’s web site at http://www.magtrol.com/support/manuals.htm Please compare the date of this manual with the revision date on the web site, then refer to the manual’s Table of Revisions for any changes/updates that have been made since this edition..
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Page 4: Table Of Contents
Data Sheet..................................2 2. installation / Configuration ........................7 General information ................................ 7 Installation of the LMU 212 and LMU 217 load monitoring units ..................7 Connection of the LMU 212 and LMU 217 load monitoring units ................. 10 2.4 Configuration of the Load monitoring Unit ........................ - Page 5 Claims 42 table of figures 2. installation / Configuration Fig. 2–1 Installation of the LMU 212 load monitoring unit ..................11 Fig. 2–2 Installation of the LMU 217 load monitoring unit ..................12 Fig. 2–3 Stuffing gland (overall and exploded view) ....................13 Fig.
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Page 6: Preface
Who shoulD use this Manual This manual is for users who want to install and use the load monitoring unit LMU 212 or LMU 217 for processing data generated by load measuring pins. The user should have suitable technical training in mechanics and electronics so as to allow him to install and use this load monitoring unit without risk. - Page 7 Magtrol Load Monitoring Units LMU 212 & 217 Preface Warnings CAUTION The lightning ash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated RISK OF ELECTROCUTION dangerous voltage within the product’s enclosure that may be of su cient magnitude to constitute a risk of electric shock to persons.
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Page 8: Introduction
LMU 216 : model combining one LMU 212 and a control module. note : Only the two first models - the LMU 212 and LMU 217 - will be described in this manual. The LMU 216 is the subject of one manual entirely dedicated to this unit. -
Page 9: Data Sheet
Chapter 1 – Introduction Magtrol Load Monitoring Units LMU 212 & 217 Data sheet M AGTROL Data Sheet LMU Series Load Monitoring Units Features • For use with full-bridge strain gauge transducers (sensitivity 0.5 to 4 mV/V) • Voltage input for load summation or for individual use (without sensor) • 2 to 4 level detectors with relay output contacts • 0–20 mA or 4–20 mA DC current output LMU 217 • ±10 V voltage output(s) • Provides continuous detection of signal line failure and short circuits («OK» signals) - Page 10 Magtrol Load Monitoring Units LMU 212 & 217 Chapter 1 – Introduction Specifications INPUT CHARACTERISTICS TRANSFER CHARACTERISTICS Voltage Transfer Ranges (∆U / ∆U Power Supply • 115–230 VAC and 20–32 VDC Voltage jumper selectable Range • 48 VAC fixed Bridge Sensitivity 0.42 to 0.78...
- Page 11 Basic conFiguration The LMU Load Monitoring Unit offers unlimited configuration possibilities. It is impossible to list them all in this data sheet. Please contact Magtrol or one of its subsidiaries or sales agents to discuss your specific applications. Strain Gauge...
- Page 12 Magtrol Load Monitoring Units LMU 212 & 217 Chapter 1 – Introduction Dimensions lMu 212 Mounting screw M6x30 Sealed diecast aluminum box ≈16 20.75 13.4 ≈1.5 Stuffing glands Ø cable: 5 to 12 mm Model Weight LMU 212 2 kg...
- Page 13 • No (not available) Configurated and calibrated? • No (standard) (blank) • Yes (according to application and Magtrol Configuration and Calibration Protocol) Due to the continual development of our products, we reserve the right to modify specifications without forewarning. www.magtrol.com Magtrol inc...
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Page 14: Installation / Configuration
For optimal operation, the load monitoring unit should be run at temperatures between -40° C and +80° C. Both load monitoring units LMU 212 and LMU 217 being structurally very close to each other, their mounting and the connection procedures are very similar : 1. -
Page 15: Fig. 2-1 Installation Of The Lmu 212 Load Monitoring Unit
Magtrol Load Monitoring Units LMU 212 & 217 Load monitoring unti cover Cover fixing screw Load monitoring unit housing Housing M6 x 30 fixing screw M6 washer Tap on the mounting surface Fig. 2–1 Installation of the LMU 212 load monitoring unit... -
Page 16: Fig. 2-2 Installation Of The Lmu 217 Load Monitoring Unit
Magtrol Load Monitoring Units LMU 212 & 217 Chapter 2 – Installation / Configuration Load monitoring unit cover Fixing screw for cover M6 x 30 housing fixing screws M6 washer Load monitoring unit housing Taps on the assembly surface Fig. 2–2 Installation of the LMU 217 load monitoring unit... -
Page 17: Connection Of The Lmu 212 And Lmu 217 Load Monitoring Units
ConneCtion of the lMu 212 anD lMu 217 loaD Monitoring units The LMU 212 and LMU 217 load monitoring units are fitted with stuffing glands maintaining the connection cables and securing the tightness of the unit's housing. To pass the cables through the stuffing glands simply apply the following procedure : 1. -
Page 18: Configuration Of The Load Monitoring Unit
LMU 212 version 0XX and LMU 217 version 0XX, that is to say the basic uncalibrated modules. The configuration of the LMU 212 and LMU 217 load monitoring units include all start-up operations which are necessary to achieve a trouble free operation. This ranges from the supply voltage to the selection of the application, the sensor connection, the energising mode of the relays and their delay time, the selection of the pass-band and the sensor sensitivity. -
Page 19: Fig. 2-5 Jumper And Switch Configuration
Chapter 2 – Installation / Configuration Magtrol Load Monitoring Units LMU 212 & 217 1. Place the jumper according to the selected supply mode (see figure 2–5 - 'DC' for a DC type supply with a voltage between 20 and 32 VDC - 'AC' for an AC type supply (230 VAC, 115 VAC or 48 VAC) 2. -
Page 20: Selection Of The Type Of Wiring To The Strain Gauge
Magtrol Load Monitoring Units LMU 212 & 217 Chapter 2 – Installation / Configuration THE INFORMATION DISCLOSED HEREIN WAS ORIGINATED BY AND IS THE PROPERTY OF MAGTROL SA. MAGTROL SA RESERVES ALL PATENT PROPRIETARY, DESIGN, USE, SALE, MANUFACTURING AND 4. When using a 230 VAC, 115 VAC or 48 VAC supply always connect the LMU to the ground as REPRODUCTION RIGHTS THERETO. -
Page 21: Designation Of The Voltage And Current Inputs/Outputs
Chapter 2 – Installation / Configuration Magtrol Load Monitoring Units LMU 212 & 217 Strain gauge Strain gauge transducer transducer Supply + Supply + SENSE + Signal + Signal + Signal - Signal - SENSE - Supply - Supply -... -
Page 22: Fig. 2-8 Location Of The Swa Micro-Switches
Magtrol Load Monitoring Units LMU 212 & 217 Chapter 2 – Installation / Configuration 2.4.4.1 Detection chain for relay 1 (REL1) Figure 2–11 indicates the location of the SWA micro-switches on the load monitoring unit board. Micro-interrupteurs Fig. 2–8 Location of the SWA micro-switches The following table allows the user to select the energising mode and the hysteresis value for the relay REL1. - Page 23 Chapter 2 – Installation / Configuration Magtrol Load Monitoring Units LMU 212 & 217 Contact Contact state of relay rel1 rel1a - rel1C rel1a - rel1b REL1 energised Closed Open REL1 de-energised Open Closed The relay REL1 also operates as a line check relay and is de-energised in case of short-circuit or line failure.
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Page 24: Fig. 2-9 Examples Of Switching Delays
Magtrol Load Monitoring Units LMU 212 & 217 Chapter 2 – Installation / Configuration 2.4.4.3 Adjusting the switching delay The switching delay corresponds to the time passing between the moment when the detection level is reached at the voltage output of the LMU (U ) and the moment when the relay is de-energized (see figure 2–12). -
Page 25: Fig. 2-10 Potentiometer Location On The Load Monitoring Unit Board
Chapter 2 – Installation / Configuration Magtrol Load Monitoring Units LMU 212 & 217 Potentiomètres d'ajustement Fig. 2–10 Potentiometer location on the load monitoring unit board The switching delays D1 and D2 are applied to the relays REL1 and REL2. The method of adjustment... -
Page 26: Selection Of The Pass Band
Magtrol Load Monitoring Units LMU 212 & 217 Chapter 2 – Installation / Configuration 2.4.5 election of the pAss bAnd Figure 2–11 indicates the location of the SWB micro-switches on the load monitoring unit board. micro-switches Fig. 2–11 Location of the SWB micro-switches on the load monitoring unit board The following table allows the user to select the pass band of the output signal. -
Page 27: Selection Of The Application
Chapter 2 – Installation / Configuration Magtrol Load Monitoring Units LMU 212 & 217 The following table allows the user to select the sensitivity range of the strain gauge transducer. strain gauge sensitivity sWa1 sWa2 sWb10 [mv/v] 0,42 to 0,78 ¶... -
Page 28: Division Of The Transducer Signal Or The Input Voltage U
Magtrol Load Monitoring Units LMU 212 & 217 Chapter 2 – Installation / Configuration The following table allows the user to select the desired application independently for each output and relay by means of the SWC micro-switches. A corresponds to the strain gauge signal and b corresponds to the monitor input voltage. -
Page 29: Use Without Transducer
Chapter 2 – Installation / Configuration Magtrol Load Monitoring Units LMU 212 & 217 2.4.9 se without trAnsducer The LMU load monitoring unit can be operated without transducer, just by using its voltage input . This can be useful when the user wants to take advantage of the voltage-current converter or relays functions. -
Page 30: Calibration
3. Calibration Two types of calibration are available on the LMU 212 and LMU 217: • Standard electrical calibration (see paragraph 3.1) • Quick calibration with reference loads (see paragraph 3.2). Paragraph 3.3 handles the calibration of the built-in test equipment B.I.T.E. -
Page 31: Zero Adjustment On The Current Output
Chapter 3 – Calibration Magtrol Load Monitoring Units LMU 212 & 217 3.1.2 ero Adjustment on the current output The following condition is required to adjust the zero on the current output : • The micro-switch SWA10 (see figure 3–2) must be OFF. -
Page 32: Adjustment Of The Detection Thresholds
Magtrol Load Monitoring Units LMU 212 & 217 Chapter 3 – Calibration arning h e l oa d m o n i t o r i n g u n i t w i l l o n ly b e o p e r at i o na l s w a 1 0 o n . -
Page 33: Fig. 3-3 Location Of The Relays Rel1 And Rel2 On The Load Monitoring Unit Board
Chapter 3 – Calibration Magtrol Load Monitoring Units LMU 212 & 217 micro-switches REL1 LED REL2 LED Fig. 3–3 Location of the relays REL1 and REL2 on the load monitoring unit board note : Record the values U and F... -
Page 34: Quick Calibration
4. The relays switch off in case of overshooting. note : When other devices such as display units are connected, the output signal of the LMU 212 must correspond to the input signal of the said devices. 3.2.2 AlibrAtion procedure The calibration is carried out in four steps as follows: 1. -
Page 35: Calibration Of The Built-In Test Equipment (B.i.t.e.)
Chapter 3 – Calibration Magtrol Load Monitoring Units LMU 212 & 217 Calibration of the built-in test eQuipMent (b.i.t.e.) The built-in test equipment (B.I.T.E.) is based on a signal simulating a fictitious load passing through the complete signal amplification chain. At each call of the B.I.T.E. function the user will be able... -
Page 36: Applications
In this application the single load monitoring unit runs with only one transducer. The micro-switches SWC1 to SWC8 of the load monitoring unit must be configured as shown on figure 4–1. Capteur Micro-interrupteurs SWC Fig. 4–1 Using one single load monitoring unit LMU 212... -
Page 37: Using One Single Load Monitoring Unit Lmu 217
Chapter 4 – Applications Magtrol Load Monitoring Units LMU 212 & 217 4.1.2 lmu 217 sing one single loAd monitoring unit note : A LMU 217 type load monitoring unit is composed of two LMU 212 load monitoring units placed side by side in a common housing. -
Page 38: Using Three Load Monitoring Units Lmu 212
C. To carry out this operation the micro- switches of the load monitoring units must be configured as shown on figure 4–3. Capteur A Micro-interrupteurs SWC Capteur B Micro-interrupteurs SWC Capteur C Micro-interrupteurs SWC Fig. 4–3 Using three load monitoring units LMU 212... -
Page 39: Using Transducers In Parallel
JB 114 Capteur D Fig. 4–4 Using one single load monitoring unit LMU 212 The number of transducers to be connected to a load monitoring unit is limited to four and the impedance of the resulting chain must be greater than 75 Ω. -
Page 40: Ok" Philosophy
Magtrol Load Monitoring Units LMU 212 & 217 Chapter 4 – Applications 4.3.2 “ok” philosophy When using simultaneously several load monitoring units, the "OK" inputs and outputs allow the user to cascade the operational checks of the different units and obtain overall control of the measuring chain. -
Page 41: Using B.i.t.e. Signal
Chapter 4 – Applications Magtrol Load Monitoring Units LMU 212 & 217 If an error is detected, the user will have to check: - the wiring in general (short-circuits or disconnected cables) and specially the transducer connections and impedance (must be less than 75 Ω), - if the LMU supply configuration is correct (see chapter 2.4.1) -
Page 42: Fig. 4-6 B.i.t.e. Control Input Terminals
Magtrol Load Monitoring Units LMU 212 & 217 Chapter 4 – Applications Bornes d'entrée B.I.T.E. Fig. 4–6 B.I.T.E. control input terminals Procedure: 1. Make sure that no load is applied on the transducer and that the activation of the B.I.T.E. function does not endanger the application. -
Page 43: Repair
Description of the tested object (drawing, photographs, sketches, etc.). • Description of the test cycle. To allow Magtrol to complete the work in the best possible time, follow the procedure outlined below: • Carefully pack the load monitoring unit. •... -
Page 44: Configuration And Calibration Report
Appendix A : Configuration and Calibration Report The configuration and calibration reports for the LMU 212 (224-212-000T011) and LMU 217 (224- 217-000T011) load monitoring units joined in this appendix have to be filled-in with the utmost care and placed in the load monitoring unit housing under its cover. -
Page 45: Lmu 212
Appendix A – Configuration / Calibration Report Magtrol Load Monitoring Units LMU 212 & 217 lMu 212... -
Page 46: Lmu 217
Magtrol Load Monitoring Units LMU 212 & 217 Appendix A – Configuration / Calibration Report lMu 217... - Page 47 Appendix A – Configuration / Calibration Report Magtrol Load Monitoring Units LMU 212 & 217...
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Page 48: Appendix B : Ce Conformity Declaration
Appendix B : CE Conformity Declaration... -
Page 49: Magtrol Limited Warranty
If purchaser fails to give notice, the delivery shall be deemed to conform with the terms of the order. The purchaser assumes all risk of loss or damage to products upon delivery by Magtrol to the carrier. If a product is damaged in transit, PURCHASER MUST FILE ALL CLAIMS FOR DAMAgE WITH THE CARRIER to obtain compensation. - Page 50 Test, Mesure and Control of Torque-Speed-Power • Load-Force-Weight • Tension • Displacement Via Paolo Uccello 4 - 20148 Milano Tel +39 02 48 009 757 Fax +39 02 48 002 070 info@dspmindustria.it www.dspmindustria.it...
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