Load Sharing Module - Home Mega Global Solution

Manual 26011Chapter 4Setup and CalibrationLoad Sharing ModuleIntroductionUse this calibration procedure after a Load Sharing Module is installed on agenerator set, to obtain the needed operating characteristics during load sharing.1. Check the input power on terminals 15(+) to 16(–) for 24 Vdc. Properpolarity must be maintained.2. Remove wires from load sharing line terminals 10 and 11, and from theSPM-A Synchronizer (if used) at terminals 24 and 25.3. Select isochronous operation by shorting terminals 13 and 14.!WARNINGTO PROTECT AGAINST POSSIBLE PERSONAL INJURY, LOSS OFLIFE, and/or PROPERTY DAMAGE EACH TIME you START the engine,turbine, or other type of prime mover, BE PREPARED TO MAKE ANEMERGENCY SHUTDOWN to protect against runaway or overspeedshould the mechanical-hydraulic governor(s), or electric control(s),the actuator(s), fuel control(s), the driving mechanism(s), thelinkage(s), or the control devices fail.4. Start the engine according to the engine manufacturer’s instructions. Adjustthe engine for rated speed. Apply full load to the generator set. NOTEThe most accurate calibration is made at full load. However, if it is notpossible to run the generator set at full load, run it at less than fullload, and reduce the voltage readings given in this calibrationprocedure proportionally. For example: run a 200 kW generator set at100 kW and divide all voltages given in this calibration procedure by2. If you reduce the load in this manner, be sure to reduce it by thesame amount throughout the calibration procedure.5. Set the LOAD GAIN potentiometer fully clockwise.6. Check the load signal voltage between terminals 22 and 23. Adjust the LOADGAIN potentiometer for 6.0 Vdc signal. If this voltage is not obtainable, setthe load signal as close as possible to 6 Vdc.7. Remove the load from the generator set.8. Check the voltage between terminals 22 and 23. This voltage should be 0.0 ±0.25 Vdc. If this voltage is not correct, the Load Sharing Module is faulty orthere may still be load on the generator.Woodward 13