Pfeiffer Vacuum A 1204H, Operating Instructions Manual

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Control interfaces
8.5.2 Wiring of digital inputs
Fig. 17: J4 connector: digital input wiring
8.5.3 Wiring of the digital outputs
Fig. 18: J4 connector: valve wiring
8.6 Remote control J5 connector
8.6.1 Description
Connection made via the connector J5 (Male D-Sub -15 pin connector) (see 4.2) allows :
– remote control of external Roots (Roots 2) pumping functions, start, stop and IDLE
mode,
– input of the external Roots speed setpoint, temperature and its monitoring.
1 2 3 4 5 6 7 8
15 14 13 12 9 10 11
S1
+24 VDC GND GND
S2 S6
+24 VDC
S7
Contact Function
S1 (2-10) IN_IN_VALVE_OPEN Contact open in end of travel not reached: warning triggered.
S2 (3-11) IN_IN_VALVE_CLOSE Contact open in end of travel not reached: warning triggered.
S6 (6-14) IN_SOFT_VALVE_OPEN Contact open in end of travel not reached: warning triggered.
S7 (7-15) IN_SOFT_VALVE_CLOSE Contact open in end of travel not reached: warning triggered.
1 2 3 4 5 6 7 8
15 14 13 12 9 10 11
+
24
V
D
C
V1
+
24
V
D
C
V2
+ 5 VA + 5 VA
Contact Function
1-9 OUT_INLET_VALVE Inlet valve V1 connection. Valve opens when the pump is switching on.
5-13 OUT_SOFT_VALVE “Soft pumping” valve V2 connection. Valve opens when the pump is switching on.
NOTICE
Extra low voltage circuit
The remote control circuits are equipped with dry contact outputs (30 V - 1 A max.).
Any overvoltage or overcurrent can result in internal electrical damage. The installer
must:
Connect these outputs in accordance with the rules and protection of safety extra low
voltage (SELV) circuits,
Supply these contacts with voltage of less than 30 V and current of less than 1 A.