BUSCH R5 - Page 41

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PLUS Pump control unit
Inlet Valve
command line
Customer side
Power line from
customer with
appropriate protection
L
N
Customer
Inlet valve
Customer
relay
24VDC from PLUS Pump
Max 1A
X1
KA1
X1 0VDC6
KA1
Y1
1
2
Inlet Valve Wiring Diagram
NOTE
The installation of an isolation valve at the vacuum pump inlet also requires the installa-
tion of an external pressure sensor to control the vacuum pump, see External Inlet Pres-
sure Sensor [►24].