Summary of Contents for MEASUREMENT TECHNOLOGY LCI-90
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INSTALLATION MANUAL LCI-90 Line Control Instrument Revision 1.07 January 6, 2009 LCI-90 LINE CONTROL INSTRUMENT TENSION 100000 110000 250000 SPEED PAYOUT 61.00 23500 SPEED H TENSION L PAYOUT H MENU DIAG ALRM CALB RSET MEASUREMENT TECHNOLOGY NW www.mtnw-usa.com 4211 24...
LCI-90. For a complete technical description please refer to Sections 3.0-6.0. Mounting The LCI-90 will fit in a 7.15” x 5.25” cutout, with a minimum of 4.75” depth clearance (see Appendix A for dimensional drawing). The instrument is held in place with removable panel clamps that index into the slotted holes on all sides of the display.
Sections 4.0-6.0. Basic Operation The LCI-90 base unit is configured at the factory to display Tension at the top of the screen, both numerically and as an analog bar graph immediately underneath. Speed is displayed in the middle on the left and Payout on the right, as shown on the cover.
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Measurement Technology NW LCI-90 Operator Manual Page 9 To calibrate either the Tension or Payout sensors, just press the CALB button on the RUN screen. This will bring up the 2.0 CALIBRATE display. (Or press MENU to get the 0 MAIN MENU shown below, then select 2 CALIBRATION;...
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Measurement Technology NW LCI-90 Operator Manual Page 10 To calibrate the Tension sensor, select menu item 1 TENSION (THREE METHODS) to move to the 2.1 TENSION CAL METHOD 1 menu shown below. Select Item 2 and enter the full-scale Tension sensor output in pounds. Then select Item 3 and enter the Tension offset in pounds.
The LCI-90 is designed for mounting on the front-panel of an electrical enclosure with a suitable environmental rating. The sealed front face of the LCI-90 is made of 12 gauge stainless steel, and the slotted rear cage is designed to promote heat transfer, facilitate field wire terminations, and provide a purchase point for the panel clamps.
Page 12 Options and Wiring Diagrams The LCI-90 can be configured for a wide range of signal input and output functions. Each of these functions requires the instrument to have the correct menu settings (Section 5.0), DIP switch settings (Appendix B), signal and power wiring, and in some cases, optional I/O modules installed.
Input power requirements are 18-36VDC (nominal 24VDC) at 15 Watts. This device is a DC device. This device is approved for Overvoltage Installation Category III. The LCI-90 requires an 18-36 Volt DC power source. The connection for the power is shown below.
The LCI-90 can accept input from a dual axis load pin on any two adjacent channels. The first channel should be the x-axis input, the second channel should be the y-axis input.
Measurement Technology NW LCI-90 Operator Manual Page 15 Direct Input – 4-20 mA, Two Wire, Channel 1 Force Xducer: 2 Wire, 4-20 mA + 24 VDC EXCITATION SIGNAL + Note: Jumper H1 must be inserted. Figure 4.6 – Tension Hookup – 2 Wire 4-20 mA Signal Direct Input –...
Figure 4.10 – Dual Axis Tension Hookup – Two 4 Wire Strain Gauge Inputs 4.1.3 Count Sensor Inputs The count sensor inputs are terminated on TB4. The LCI-90 can accept NPN and PNP type proximity and Hall-Effect inputs, as well as TTL/CMOS encoder inputs.
Figure 4.12 – Payout Hookup – TTL Encoder 4.1.4 Alarm Outputs The four alarm outputs are terminated on TB3. The LCI-90 requires optional G5- type optically isolated output modules to implement the alarm outputs. These are available in both solid state and hard contact types with a variety of voltage and current ratings.
The LCI-90 provides a method for “shunt calibration” of a load cell or load pin. The sensor must have an internal relay that connects a precision resistor across one leg of the bridge. The LCI-90 uses the Opto 4 output module to energize this relay. Shunt Calibration Connections...
Figure 4.17 – Isolated Analog Output Hookup – 2 Channels 4.1.7 Serial Communications The LCI-90 provides both RS-232 and RS-485 serial communication options with a maximum of two ports. The base model has no serial ports. A RS-232 network port can be added for data logging to a single remote device in close proximity.
A LCI-90R remote can be used to independently display (and optionally echo) all the line variables measured by a LCI-90. The LCI-90R does not support field I/O and thus has a much reduced wiring and configuration specification compared to the LCI-90. This sec- tion describes the wiring and other options associated with the LCI-90R.
4.2.2 LCI-90R communication ports The LCI-90R provides two serial communication ports on TB2, the network and the auxiliary ports. The connection to the LCI-90 is made via the network port, which is factory configured as either RS-232 (standard) or RS-485 (optional). The RS-232 configuration is suitable when the LCI-90 is connected to a single LCI-90R remote within 50 feet.
The display brightness on the HT model can be varied by using the rear panel DIP switches (SW-5 on the LCI-90, SW-2 on the LCI-90R) to change the scan rate, or by adjusting the rotary potentiometer (also on the rear panel) marked DISP. The DIP switch settings are described in Appendix B.
Measurement Technology NW LCI-90 Operator Manual Page 24 Local Display Operation Front Panel Identification The LCI-100 front panel, shown in Figure 5.1, features a high visibility display and a five- button keypad. Each key has a label at the bottom of the screen that identifies its function.
Page 25 Programming Menu The LCI-90 is user programmable via the front panel keypad and the display. Programming options include selection of input/output signal ranges, setting screen displays and formats, defining alarm points, and calibrating the unit. The menu tree is shown below in Figure 5.2.
Figure 5.2 – LCI 90 Menu Tree Alarms The LCI-90 provides the user with up to six optional visual alarms that can be configured to indicate high and low conditions of Tension, Payout, and line Speed. Each alarm can be assigned to any of the three measured variables, and can be designated as a high or low alarm.
This alarm configuration menu is covered in Section 5.3.3. In addition to these six high-level alarms, the LCI-90 can be configured to monitor each analog input channel, watching for a low-level fault condition. This is particularly useful with multiple input configurations, where the failure of a single sensor might not be easily noticed.
Measurement Technology NW LCI-90 Operator Manual Page 28 1.0 SET ALARMS > 1 TENSION > 10000 TONS TENSION > 8000 TONS PAYOUT > 2500 FT PAYOUT < 100 FT SPEED > 250 FPM NONE CHANGE CONFIGURATION 5.3.3 Configuring Alarms To configure the alarm settings, go to menu 4.3 ALARM CONFIGURATION shown below by pressing the MENU key from the RUN screen and navigating through the menu (or by selecting Item 7 in the 1.0 SET ALARMS menu above)
Measurement Technology NW LCI-90 Operator Manual Page 30 5.4.1 Scale and offset The Scale and Offset values displayed in Menu 2.1 are the actual numbers used in the calculation of displayed Tension (unless a lookup table is being used). The menu for setting scale and offset values, 2.1 TENSION CAL METHOD 1, is shown below.
Measurement Technology NW LCI-90 Operator Manual Page 31 Perform this calibration as follows: 1) Apply known or measured LOw Tension to the cable. 2) Move to Item 2 using the DOWN key and press ENT. Edit the DISPLAY LO value to correspond to the applied load. Press ENT when complete.
Measurement Technology NW LCI-90 Operator Manual Page 32 Tension Tare To perform a tension tare, press CALB to display the main 2.0 CALIBRATION menu, shown below. Select Item 2 and press ENT to activate the edit keys. Press either INCR or DECR to toggle between ON and OFF.
Measurement Technology NW LCI-90 Operator Manual Page 33 Shunt Calibration To perform a shunt calibration, press CALB to display the main 2.0 CALIBRATION menu shown below. Select Item 3 and press ENT to activate the edit keys. Press either INCR or DECR to toggle between ON and OFF. Press ENT to accept the selection. At this time the contacts on the Opto 4 module will either be closed (ON) or opened (OFF).
150 FT 5.7.1 Wrap angle adjustments The LCI-90 has the ability to correct for variations in sheave geometry by allowing the user to specify the wrap angle. (See §11 for a definition of this angle, and a table showing the effect it has on the measured tension.) The wrap angle correction only applies to fixed sheave angle geometries;...
90 from each other, one labeled ‘x’, the other ‘y’. The LCI-90 combines these signals to cal- culate the actual line tension, which is independent of the wrap angle. However, the calculation is only correct if the ‘y’...
Payout Scale = Number of Targets / Sheave Circumference The LCI-90 expects to receive pulses generated by a pair of offset sensors that see the targets in sequence (or quadruture pulses generated by a shaft encoder). The quadra- ture signal allows the count to increment or decrement depending on the direction of motion.
Page 37 5.10 Display Configuration The LCI-90 allows the user to change the display position of the three line variables on the RUN Screen, change the units of measure, and the number of decimal places. The LCI-90 also has a screen saver to prolong the life of the display. These features are accessed via the 3.0 DISPLAY CONFIGURATION menu.
In this case, the LCI-90 displays “OR” on top of the rightmost digit to indicate that the display is over the digit limit for that field. If this happens, consider switching that variable to a different display location or use a different set of units.
Page 40 Hardware Configuration The LCI-90 will work with a wide variety of input sensors, output alarms and data systems. The 4.0 SYSTEM CONFIGURATION menu, shown below, allows the LCI-90 to be customized for a particular installation. Once these settings have been made, this menu also offers a security fea- ture that locks out unauthorized changes.
LCI-90 are NONE and TENSION; consul the factory for other options. Items 4-7 are disabled when NONE is selected. Item 4 The LCI-90 can combine the input from several sensors. The choices here are NONE, SUM or 2-AXIS. Use of multiple sensors is discussed in Section 6.3.1.
Page 42 6.3.1 Using Multiple Tension Sensors The LCI-90 can combine the input from several sensors into a single result. If a single sensor is used (the most common configuration), item 4 should be set to NONE. If more than one sensor is used, the results can be SUMed (which gives a result equal to the total Tension applied to all sensors), or treated as a 2-AXIS (dual axis load pin), which calculates the tension from two sensors 90º...
6000 LBS OFFSET 3000 LBS Item 1 Selects the channel number, 1-2, that the configuration applies to. These channels correspond specific terminal blocks on the back of the LCI-90 as shown below: Channel No Module Used Module Used AO – 1 TB2 V0/G (voltage out) TB6 –...
20 mA or 5 V, etc. Line values above the "full scale" value generate the same (maximum) out- put. This flexible arrangement allows the LCI-90 to meet the requirements of almost any conceivable data system or output device.
“Opto Modules”, which can then be wired to set off an external alarm. Since the LCI-90 can have up to four (4) such modules, the possible output options (Item 3) are: SCREEN, SCR+OP1, SCR+OP2, … SCR+OP4. More than one alarm can be assigned to the same module, but keep in mind that Input Check errors (§6.3.2) always turn on OP1 and the Shunt Cal feature (§5.6) always uses OP4.
POLLED Item 1 Selects LOCAL, REM-A or REM-B modes of operation. REM-A and REM-B modes turn the LCI-90 into a remote display, receiving data through the network communication port, rather than field sensors. See Section 7.0 for details. Item 2 This item only appears when units are set to LOCAL mode. Selecting this item, changing it to YES, and pressing RUN downloads the entire set of configuration parameters to all REM-B units attached to the Network port.
LCI-90 Operator Manual Page 47 a different viewer. When a LCI-90 is set as REM-A, it will not accept configuration information from a LOCAL display; it is only configured from the keypad and menu. REM-B displays (also called "Blind Remotes") mimic the operating mode of the LCI-90R, which has no buttons and can only be configured from a LOCAL unit.
0, 1, 2, 3. Protocol '0' is a special 'diagnostic' protocol that is normally only used during production. Protocol '1' is the LCI-90’s Remote Data protocol. This format is the same one used to send data to Remote Displays over the network communications port; it is a check-...
Carriage Return (ASCII 13). Thus if the AUX port is connected to a "Terminal Emulator" program running on a PC (for example "HyperTerm"), just hitting the Enter key will cause the LCI-90 to send a data string. Similarly, a data-logging system only needs to send a "blank line" to get a response.
(including the Alarm settings) in a manner that differs from the Local unit. Setting up a REM-A display is completely straight-forward: simply use the Keypad keys as described for the Local LCI-90, but be sure to set Item 1 of the 4.4 SERIAL CONFIGURATION menu to REM-A.
Blind Remote displays (LCI-90R) have the same display and communications hardware found in the LCI-90, but lack a front panel keypad. This means that they can only be con- figured by connecting them to a LCI-90 Local display, or, per request, by the Supplier.
Page 52 Troubleshooting The LCI-90 was designed with the user in mind. Using full language menus and a minimum of abbreviations makes the programming and operation much easier to understand. A diagnostics screen described in the section below is easily accessible by the user to check raw input signals.
COM and also +12 and COM. If these voltages are out of range, the internal power supply is suspect. CPU failure Check for communication with Contact supplier remote displays. If remote displays are not updating and the LCI-90 has power, then the CPU is suspect...
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No sensor input Press DIAG to view diagnostics If no input signal, then screen. Use a multimeter to compare replace or repair the raw input value with the LCI-90 tension sensor displayed input Confirm that the sensor has excita- Review Section 4.1.2 tion power with a multimeter.
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DC signal. Check that cable shields are Try variations on shield grounded near the LCI-90 for best grounding. Try both noise immunity. ends, or no grounding. Floating ground level resulting from Jumper H1 connects the jumper H1.
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Measurement Technology NW LCI-90 Operator Manual Page 56 Problem “REMOTE DISPLAY NO VALID DATA” Displayed Possible Causes Diagnosis Remedies Incorrect menu configuration If using the display as a local, check Change the Menu 4.5 Menu 4.5, Item 1. Item 1 LOC/REMOTE...
DIP switch and jumper settings, any hardware options installed, plus a description of the field devices in use and how they are terminated on the LCI-90. Measurement Technology Northwest 4211 24...
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Measurement Technology NW LCI-90 Operator Manual Page 60 SW-4: Count Sensor Configuration Sensor Config SW4-1 SW4-2 SW4-3 SW4-4 CH A NPN* CH B NPN* CH A PNP CH B PNP Encoder Note: DO NOT simultaneously position SW4-1 and SW4-2 in the ON position.
Measurement Technology NW LCI-90 Operator Manual Page 62 12.0 Appendix D – Idealized Dual Axis Load Pin Geometry Note: This is the idealized condition where the Y-axis is parallel to the line going to the winch. This is a fixed relationship, but as the equations below show, ...
In an actual installation the load pin may not be aligned such that the y-axis of the load pin is exactly parallel to the winch line. The LCI-90 has the ability to correct for this orientation error. In the example above the load pin is oriented along X1 and Y1 axis.
Measurement Technology NW LCI-90 Operator Manual Page 64 14.0 Appendix F – LCI-90 Specifications LCI-90 PHYSICAL/POWER Std/Option Temp. -40˚C to 75˚C Environmental NEMA 4X front panel NEMA 1 rear enclosure Dimensions 7.6” wide x 5.7” high x 3.7-4.8” deep (per options) Cut out: 7.15”...
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Measurement Technology NW LCI-90 Operator Manual Page 65 LCI-90 DIGITAL I/O – ALARMS Std/Option Channels Four total, input and output, menu configurable Type Fused output module: dry contact, 0.5 A max, 3-60 VDC Fused output module: solid state, 3.5 A max, 3-60 VDC...
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Measurement Technology NW LCI-90 Operator Manual Page 66 LCI-90 ANALOG OUTPUT Std/Option Type 4 to 20 mA, non-isolated, 15 VDC maximum 0-10 VDC, non-isolated, load range 0 to 1000 4 to 20 mA, isolated, load range 0 to 750 ...
Measurement Technology NW LCI-90 Operator Manual Page 67 15.0 Appendix G – LCI-90R Specifications LCI-90R PHYSICAL/POWER Std/Option -40˚C to 75˚C Temp. Environmental NEMA 4X front panel NEMA 1 rear enclosure Dimensions 7.6” wide x 5.7” high x 4.0” deep Cut out: 7.15” wide x 5.25 high Weight 3.4 pounds...
Measurement Technology NW LCI-90 Operator Manual Page 68 16.0 Appendix H – LCI-90 IFB Wirelist Manual IFB Terminal Block Function Reference Designator Analog Input 1 High TB1 1+ Analog Input 1 Low TB1 1- Analog Input 2 High TB1 2+...
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Measurement Technology NW LCI-90 Operator Manual Page 69 Manual IFB Terminal Block Function Reference Designator Iso Analog Input 1 Exc + TB6 MOD1 V+ TB48 Iso Analog Input 1 Sig + TB6 MOD1 S+ TB47 Iso Analog Input 1 Sig -...
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