BUSCH SIMPLEX VO 0040 B, Operating Instructions Manual

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14 | Connecting values of the vacuum system VO
46 / 52
0870S03254
_VO 0040-0080_B_-0000_IM_en
14.4
49B
Electrical data of the terminals of the control unit
Terminal Technical information
20 Digital output Ready for operation, open collector
18 Analog output
Output frequency
0 V = 0 min
-1
10 V = n
max
16 Digital input 6
15 Digital input 5 Free to use
14 Digital input 4 Reset maintenance counter
13 Mass digital output
5 Mass
4 Analog input 2
Busch pressure transmitter
4
… 20 mA
0 … 1 bar abs.
10 Digital input 3 Reset failure
9 Digital input 2
Opened = rotation speed control
Closed = pressure control
8 Digital input 1
Opened = stop
Closed = start
7
Ground of the digital
inputs
6 24 V output
3 Mass
2 Analog input 1
Rotation speed control:
0 V / 0 mA = n
min
= 1,200 min
-1
10 V / 20 mA = n
max
Target value of the pressure control
0 V / 0 mA = 0 bar abs.
10 V / 20 mA = 1 bar abs.
1 10 V output
A RS485
B RS485
Tab. 10: Electrical data of the terminals of the control unit