2.6f Radius Parameters for a Lattice Crane with Mast Menu 4E) 9) MAST Jib mounting point SHEAVE RADIUS (Your measurement) Mast sheave head length parallel Menu 4E) 7) MAST SHEAVE Mast Head sheave HEAD LENGTH PERPENDICULAR (Your measurement) Jib offset angle Jib length Menu 4E) 5) MAST BOOM LENGTH (Your measurement) Menu 4E) 6) MAST SLEW OFFSET Boom base pin Crane center of rotation (Your measurement) Figure: Advanced radius parameters - Lattice crane with Mast. Typical installation.
.7 Wireless Wind Speed Sensor GS020 c. The wind cups must be fully exposed to the wind and spin freely at all boom angles. Mounting rod Figure: GS020 wireless wind speed sensor 1. Remove the mounting rod from the wind speed sensor. ! IMPORTANT! Do not weld in proximity to LSI sensor/transmitters. 2. Determine the mounting rod position. Figure: Wind clearance d. There should be a clear and unobstructed line of sight between the wind speed sensor antenna and the cabin mounted display unit. a.
2.8b Load Pin Transmitter GS001 2.8 Wireless Load Pins 1. Determine the transmitter mounting position. Handle wire Pigtail Figure: Load pin ! IMPORTANT! Do not pull on a load pin by the pigtail, pull on the handle wire. 2.8a LP011, LP015, and LP026 1. Mount the load pin to the boom tip or block by replacing the pin of the wedge socket. The load pin is directional and must be oriented correctly to indicate load accurately.
2.9 Line Riding Tensiometer Line Riding Tensiometer Swing Arm Swing Arm Line Riding Tensiometer Hoist drum Landing Pads Figure: Line riding tensiometer Figure: Typical installation (not to scale) 2.9a Line Riding Tensiometer Installation Swing Arm CAUTION! ! The Line Riding tensiometer must be held by the swing arm and the tension of the wire rope; do not fix the line riding tensiometer to the boom.
2.9b Line riding tensiometer installation on a swing arm 1. Verify that the line riding tensiometer size fits with the wire rope diameter. Table: Line riding tensiometer part number and rope diamater. P/N GS series line-rider with swign-arm and transmitter P/N Cable size Inches (mm) Small (4.25") LD006 GD004-0375 3/8" Small (4.25") LD006 GD004-0500 1/2" Small (4.25") LD009 GD004-0563 9/16" Small (4.25") LD010 GD004-0625 5/8" Small (4.
2.10 Load Pins, line riding tensiometers and Compression Cells: Calibration 7. Lower the first load, lift the second (heavier) known load, use Up and Down to adjust the load value displayed to equal the actual known load lifted, and then press Enter. Load pins, line riding tensiometers and compression cells must be calibrated at installation and every time thereafter the installation, the load sensor or the load transmitter is changed. This procedure requires two known weights.
2.11 Four Point Lift 2.11b Imbalance The following functions are available for applications such as container cranes and gantry cranes that require load indication from four load sensors simultaneously. Systems programmed for four load sensors and four load sum indication can be programmed with an imbalance sensor to warn against uneven load distribution or against unwanted rope payout if one corner of the load touches down before the others.
four load sensors and press Enter to modify. 4. Use Up and Down to select the sensor type “Imbalance sensor” and press Enter. Only one imbalance sensor is required to calculate imbalance for all four load sensors. 5. The ID can be left at 0, press Enter. 6. Press Enter to save any changes. 7. Press Exit to return to the operation display. 8. Confirm the imbalance factor limit and the imbalance minimum limit in menu 6) SYSTEM LIMITS. 2.
2.12 List and Trim Angle Sensor The GS010-03 is a two axis angle sensor designed to detect both list and trim angle. Minimum and maximum limits for list and trim angle are adjustable in the display. The display will generate an alarm if the limits are exceeded and can be programmed to generate lockout. Furthermore list and trim angle can be used to control rated capacity chart selection where required (example: barge cranes). 2.
2.12c List and Trim Angle Calibration Procedure Calibrate angle indication by adjusting the offset values for list and trim in the GS820 display; the GS820 will then communicate the updated offset values to the sensor. 7. Note the trim and scale values. 8. Press Enter to save and communicate changes to the sensor. 9. Repeat steps 4 through 8 for the list angle. 10. Press Exit to return to the operation display. 12. Verify accurate list and trim angle indication. 1.
2.13 Rope payout Rope payout sensor Figure: Rope payout on a line riding tensiometer Typically the rope payout sensor is factory installed on the line riding tensiometer load sensor (figure above). Alternatively the rope payout sensor may be installed on an appropriate sheave (figure below). Power supply must be provided to the rope payout sensor. A GS820 display can then be programmed to communicate with the sensor and to indicate rope payout (length) and rope speed. 2.
2.13d Electrical connections Voltage: 9 to 30 Volts DC, about 0.3 Amp Red wire: positive voltage Blue wire: negative or ground Two types of connections are recommended; 1) Always powered up 2) Powered-up at the same source as the GS820 display unit Figure: Rope payout calibration, adjust the actual rope length 8. Note the new trim and scale values. Figure: Rope payout calibration, trim and scale values 9. Press Enter to save and send the new calibration to the rope payout sensor. 10.
2.14 Data Logger The GS820 includes a data logger that records all significant events including actual sensor values and a date and time stamp. The data logger memory can hold over 32 000 records, this is equivalent to several days or several years of operation depending on the recording mode selected and machine use. The data can be extracted using a USB mass storage device (USB key) and then transferred to a personal computer for analysis. 2.
2.15 Sensor List All sensors in the GS820 system are programmed in the sensor list. The GS820 uses information from all sensors in the sensor list. Conversely the GS820 will not use or display information from sensors that are not programmed to the sensor list. If a sensor is removed from the crane then it must be removed from the sensor list. If a sensor is replaced the sensor list must be updated with the new ID number.
! IMPORTANT! Sensors can only have one network controller at a time. To receive communication from a sensor without taking control of that sensor a display must first be programmed in “listening mode”. Program the listen only mode 1. Go to menu 4) and select 4I) NETWORK OPTIONS. 2. Enter the user password and press Enter. 3. Select 4I1) NETWORK CONTROL). 4. Press Enter to modify “DISPLAY MODE” and use Up and Down to switch between “NETWORK CONTROLLER” and “LISTEN ONLY” modes. 5.
Program a sensor repeater 1. In menu 4I), select 4I3) SET UP SENSOR REPEATOR. 2. Select 1) SELECT REPEATER, press Enter to modify and use Up and Down to program the radio ID number of the sensor that will be the repeater and press Enter to confirm. 3. Select 2) SELECT SOURCE, press Enter and program the radio ID number of the sensor that will be the source and press Enter. 4. Press Exit to return to the operation display. 2.
3. OPERATION 3.1 Display GS820 3.2 USB Port The GS820 displays detailed information on the liquid crystal display (LCD); warnings, alarms, and radio status is also communicated by the display buzzer. The USB port is used to download data from the data logger or to upload capacity charts using a USB mass storage device (USB key). Status light Warning light Alarm light Working load limit Percent of limit Selection buttons Press the selection button to access line or menu shown on LCD.
3.5 Menu System 3.5c Password Protection WARNING! System limits are not monitored when the display is in menu mode. DO NOT operate the crane in menu mode. DO NOT navigate system menus when operating the crane. The submenus of menu 4) INSTALLATION are protected by a password by default. Password settings can be adjusted in menu 4H) PASSWORD SETTINGS. If the user password is forgotten, it can be changed as long as the administrator password is known.
3.5e Parts of Line 3.6c Chart Wizard The load sensor often shares the weight with multiple parts of line. For accurate load indication the GS820 must be programmed for the number of parts of line. Rated capacity indication is based on interpretation of a selected capacity chart using boom angle and load radius. The chart must be selected by “rigging” the working hoist in the GS820; this is done by following the chart wizard in menu 2) CRANE RIGGING. 1. Go to menu 1) PARTS OF LINE. 2.
4. After the last step has been completed, the GS820 displays “RIGGING OK” and then returns to menu 2). Press Exit to return to the operation display or press Enter to rig another hoist. If a sensor required by the selected capacity chart is not a part of the system or has not established communication with the GS820, then the GS820 will display “SENSOR INVALID”. 3.7b Backlight Mode Adjust the LCD backlight control mode to conform to viewing and power supply conditions.
