Pfeiffer Vacuum HILOBE 2704, Operating Instructions Manual

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6 Interfaces
6.1 "Remote" interface
NOTICE
Property damage on the electronics
Separating all plug-and-socket connections within the bus system with voltage supply switched on
may lead to the destruction of electronic components.
► Always disconnect the voltage supply before removing the connecting plug.
► After switching off the power supply pack, wait until the residual load has dispersed completely
before disconnecting the plug-and-socket connection.
The 15-pin sub-D connection with the "remote" designation offers the possibility to operate the electron-
ic drive unit via remote control. The following specifications are the factory settings for the electronic
drive unit. They can be configured with the Pfeiffer Vacuum parameter set.
► Utilize the screened plug and cable.
1 8
9 15
→
→
Fig. 15: Pin assignment of the D-Sub socket, 15-pin
Pin Function Description, factory setting
1 n.c.
2 DI access request V+: Control via DIs, --> GND/open: Control unlocked
3 DI1 V+: Rotation speed setting mode, --> GND/open: no rotation speed
setting mode
4 n.c.
5 DI pumping station V+: Vacuum pump on, --> GND/open: Vacuum pump off
6 DI stand-by V+: Stand-by, --> GND/open: no stand-by
7 +24 V DC output (V+) Reference voltage for all digital inputs (5 W max.)
8 DO1 GND: Error, V+: no error (current max. 80 mA)
9 DO2 GND: Vacuum pump off, V+: Vacuum pump on (current max. 80 mA)
10 n.c.
11 n.c.
12 n.c.
13 RS-485 D+
14 RS-485 D-
15 Ground (GND) Ground connection of the voltage supply; reference ground for all digi-
tal inputs and outputs
Tbl. 6: Plug arrangement of the D-Sub socket, 15-pin
6.1.1 Voltage output
24 V DC output / pin 7: Inputs 2 to 6 are activated if they are connected to pin 7 (active high) with +24
VDC. They can also be activated via an external SPS. The functions are deactivated by "SPS high lev-
el" and by "SPS low level".
● PLC High level: +13 V to +33 V
● PLC Low level: -33 V to +7 V
● Ri: 7 kΩ
● I
max
< 200 mA
Interfaces
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