Ed. 07/2006 - Scotsman
Ed. 07/2006 - Scotsman
Ed. 07/2006 - Scotsman
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Service manual<br />
GEAR REDUCER PROTECTION – RM4JA32<br />
- Gear reducer of the rotating shaft<br />
Electrical supply: 400/50/3<br />
!<br />
the measuring relay (over current protection) is supplied with<br />
the machine, to protect the gear reducer and shaft.<br />
The control relay (control RM4JA32) measures the current on the power supply to<br />
the motor and controls its operation (see electrical circuit diagram).<br />
1<br />
2<br />
3<br />
4<br />
Dim. 45x78 mm<br />
In order to avoid an excessive formation of ice<br />
before the restart, the measuring relay has to close down the water inlet and<br />
refrigerant inlet.<br />
The current relay (gear-motor protection), has to be installed as follows:<br />
A1-A2 electrical supply 24~240V<br />
C+B1 supply phase drive-motor (EVE201-301-401-651-801)<br />
C+B2 supply phase drive-motor (EVE1001-1301-1501-2401)<br />
15 +18 supply relay with manual restart for plant control<br />
SET UP:<br />
1) Current absorbed in normal working conditions increased by 5%;<br />
2) Hysteresis = calibration 15%<br />
3) Timer = calibration 50%<br />
4) Motor function/delay = calibration to >1 sec<br />
26<br />
Rev. <strong>07</strong>/<strong>2006</strong>
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