10 TECHNICAL DATA ON CONTROL CONNECTIONS
10.1 TECHNICAL DATA ON CONTROL CONNECTIONS
Table 35: The standard I/O board
Standard I/O board
Terminal Signal Technical information
1 Reference output +10 V, 0%...+3%, maximum current: 10 mA
2
Analogue input, voltage or cur-
rent
Analogue input channel 1
0...+10 V (Ri = 200 kΩ)
4-20 mA (Ri =250 Ω)
Resolution 0.1 %, accuracy ±1 %
Selection V/mA with DIP switches (see chapter Selection of
terminal functions with DIP switches in the Installation Man-
ual).
3
Analogue input common (cur-
rent)
Differential input if not connected to ground
Allows ±20 V common mode voltage to GND
4
Analogue input, voltage or cur-
rent
Analogue input channel 2
Default: 4-20 mA (Ri =250 Ω)
0-10 V (Ri=200 kΩ)
Resolution 0.1 %, accuracy ±1 %
Selection V/mA with DIP switches (see chapter Selection of
terminal functions with DIP switches in the Installation Man-
ual)
5
Analogue input common (cur-
rent)
Differential input if not connected to ground
Allows ±20 V common mode voltage to GND
6 24 V aux. voltage
+24 V, ±10%, max volt. ripple < 100 mVrms
max. 250 mA
Short-circuit protected
7 I/O ground
Ground for reference and controls (connected internally to
frame ground through 1 MΩ)
8 Digital input 1
Positive or negative logic
Ri = min. 5 kΩ
0-5 V = 0
15-30 V = 1
9 Digital input 2
10 Digital input 3
TECHNICAL DATA ON CONTROL CONNECTIONS VACON · 129
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