FASTERHOLT FM4550, User Manual And Spare Parts Catalogue

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The most used combination of different constants:
With constants factory adjusted the machine always will run. But there are different conditions from farm to farm
and there are also different wishes from the farmer. Therefore some constants can be adjusted for local wishes.
1. Slow start of turbine.
Machine data no. 13 is adjusted to 2-4 to start. Now the valve for control ofspeed will close about half and contin-
ue stepwise until the adjusted speed are reached. Correct adjustment is: Continuously closing ofthe valve until the
turbine is start running and stepwise until adjusted speed is reached.
2. Slow opening for inlet of water.
Machine data no. 17 is set to 1. Opening for the water will be stepwise.
3. Only 1 motor for speed regulation.
Machine data no. 12 is set to 0. Post irrigation will take place as foliowing: When the stop sensor is activated the
turbine stops. After the time for post irrigation the machine start again and run to the mechanic stop.
4. Start up of no. 2 machine when no. 1 machine reaches the stop
Machine data no. 14 is set to 2. Both machines must be equipped with adjustable pressure switch. Adjust the
pressure switch to a point between normal pressure and the pressure when the pump will stop. For instance:
Norma! pressure can be 7 bar and pressure for pump stop 9 bar. Adjust the pressure switch to 8 bar on both the
machines. Start no. 1 machine as normal by pressing start. Set up no. 2 machine but press stop. When no. 1 ma-
chine comes to slow close down, no. 2 machine will start up when the pressure reach 8 bar. Please note that if the
field’s height difference is too large, the necessary pressure differences, the pressure switch may be set to be too
large
5. Stop the machine because of low pressure and pressure switch mounted.
Constant no. 6 is set to l and machine data no. 12 must be set to 2. (=Stop motor from turning in opposite direc-
tion.) It means that with the same cable connection to the motor, the valve will open instead of closing for stop.
After 2 minutes the valve closes again, otherwise it is impossible to obtain pressure to start. When machine data
12 is 2, the valve only opens in connection with the stop-sensor, stop-button and supervision. But not when the
pressure switch is turned off.
6. Pre-irrigation before the gun reaches the stop. 6. Pre-irrigation before the gun reaches the stop.
Constant no 9 can be set to the number ofmeters; you want the gun to stop befare the end stop. Now post irriga-
tion should take place befare the pipe starts lifting the gun wagon, which causes a wrong position ofthe gun. This
can be up to 15 meters befare the end stop. The drive stops within post irrigation og then run to normal stop.