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5| Electrical connection
5.6 Function test of the trigger unit MP 10
Before start-up, troubleshooting or making changes to the control power circuit, check the functionality
of the trigger unit:
Pos
Procedure
1
• Interrupt power supply (L1 or S1)
• Release the motor temperature sensor connection (1 or 2)
• Release the hot gas temperature sensor (if installed) (3 or 4)
2
• Restore the power supply (L1 or S1)
• Function check of motor temperature sensor: operational
• Function check of hot gas temperature sensor: operational
3
Interrupt power supply again (L1 or S1)
•
• Reconnect terminals 1 or 2 and/or 3 or 4
Restore the power supply (L1 or S1):
4
•
MP 10 is operational again
•
The compressor and the trigger unit MP10 are operational when the H3 LED (green) lights.
5.7 Fan motor
The fan motor for cooling the compressor is already wired in the terminal box. The power supply as
well as triggering of the compressor contactor should be made in accordance with the basic circuit
diagram (in the terminal box). The fan motor is protected by an internal temperature monitor.
Electrical data: 230 V - 1 - 50/60 Hz, 40 W - 0,3 A
LED H1 LED H2 LED H3
red
red
green
OFF
OFF
OFF
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
ON
D
GB
F
E
17
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