Pfeiffer Vacuum PM 041 937-T, Руководство по эксплуатации

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6
Installation
4 Installation
4.1 Internal connection
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Unscrew and remove the cover of the relay box.
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Install the wiring of the mains power and the backing pump according to the fol-
lowing illustrations.
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Close the relay box
Fig. 3: Relay box PM 041 937 -T, internal view
Fig. 4: Relay box PM 041 938 -T, internal view
DANGER
Voltage-bearing elements
Danger to life from electric shock.
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The electrical connection can be carried out only by trained and authorised electrici-
ans.
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Ensure the system is adequately earthed.
20a Control lead
20b Connection backing pump
20c Connection mains power input
L PE N L1 PE N
20b 20c 20a
L PE N L1 PE N
20b
20c
20a