User`s manual

68(110) CABLING AND CONNECTIONS
6
6.2.2 Control terminal signals
OPT-A1
Terminal Signal Technical information
1
+10 Vref Reference voltage Maximum current 10 mA
2
AI1+ Analogue input,
voltage or current
Selection V or mA with jumper block X1
(see page 71):
Default: 0– +10V (Ri = 200 kΩ)
(-10V…..+10V Joy-stick control, selected with a jumper)
0– 20mA (Ri = 250 Ω)
3
GND/AI1– Analogue input common Differential input if not connected to ground;
Allows ±20V differential mode voltage to GND
4
AI2+ Analogue input,
voltage or current
Selection V or mA with jumper block X2
(see page 71):
Default: 0– 20mA (Ri = 250 Ω)
0– +10V (Ri = 200 kΩ)
(-10V…..+10V Joy-stick control, selected with a jumper)
5
GND/AI2– Analogue input common Differential input if not connected to ground;
Allows ±20V differential mode voltage to GND
6
24 Vout
(bidirectional)
24V auxiliary voltage
±15%, maximum current 250mA (all boards total);150mA
(from single board); Can also be used as external power
backup for the control unit (and fieldbus)
7
GND I/O ground Ground for reference and controls
8
DIN1 Digital input 1
9
DIN2 Digital input 2
10
DIN3 Digital input 3
R
i
= min. 5kΩ
18…30V = "1"
11
CMA Digital input common A for
DIN1, DIN2 and DIN3.
Must be connected to GND or 24V of I/O terminal or
to external 24V or GND
Selection with jumper block X3
(see page 71):
12
24 Vout
(bidirectional)
24V auxiliary voltage Same as terminal #6
13
GND I/O ground Same as terminal #7
14
DIN4 Digital input 4
15
DIN5 Digital input 5
16
DIN6 Digital input 6
R
i
= min. 5kΩ
18…30V = "1"
17
CMB Digital input common B for
DIN4, DIN5 and DIN6
Must be connected to GND or 24V of I/O terminal or to
external 24V or GND
Selection with jumper block X3
(see page 71):
18
AO1+ Analogue signal (+output)
19
AO1– Analogue output common
Output signal range:
Current 0(4)–20mA, R
L
max 500Ω or
Voltage 0—10V, R
L
>1kΩ
Selection with jumper block X6
(see page 71):
20
DO1 Open collector output Maximum U
in
= 48VDC
Maximum current = 50 mA
Table 6-9. Control I/O terminal signals on basic I/O board OPT-A1