Siemens CU240B-2 Parameter Manual page 514

I I Current
AI0/1
U I
Voltage
U U
Kl.3
(Kl.10)
AI0/1
+
U I
<1>
-
Kl.4
(Kl.11)
<5>
0 … 20 mA
-10 … +10 V
<1>
Differential input!
For an input signal referred to ground, terminal 4 (11) must be connected to reference potential M.
Caution:
The voltage between an input (Kl.3 (Kl.10) or Kl.4 (Kl.11)) and the ground point must not exceed 35 V.
When the load resistor is switched in (DIP switch in position I), the voltage between the input terminals
must not exceed 10 V or the impressed current 80 mA.
<2> For p0756 = 2, 3 the units are mA.
For p0756 = 0, 1, 4 the units are V.
Kl. = Terminal
1 2
External Interfaces
Analog inputs 0 ... 1 (AI0 ... AI1)
<2> <3>
p0756[0..1] (4)
CU AI sim_mode
0 ... 1
p0797[0..1] (0)
1
20 mA
0
Hardware smoothing
100 μs
A
Type switching
Analog input
D
CU AI sim setp
-50.000 ... 2000.000
p0798[0..1] (0.000)
<2>
Sampling time of the AI : 4 ms
3 4
<4>
CU AI type
0 ... 8
3
20 mA
3
<2>
CU AI U/I_inp act
r0752
CU AI sim_mode
0 ... 1
p0797[0..1] (0)
CU AI char y2
-1000.00 ... 1000.00 [%]
p0760[0..1] (100.00)
0
1 CU AI char y1
-1000.00 ... 1000.00 [%]
p0758[0..1] (0.00)
CU AI value in % [%]
r0755
[0..1]
5
FP_9566_97_52.vsd
13.12.2010
CU WireBrkThresh
CU wire brk t_del CU AI status word
0.00 ... 20.00
0 ... 1000 [ms]
r0751
p0761[0..1] (2.00)
p0762[0..1] (100)
T 0
<2> <2>
CU AI char x1 CU AI char x2
-50.000 ... 160.000 -50.000 ... 160.000
p0757[0..1] (0.000) p0759[0..1] (10.000)
0.0 ... 1000.0 [ms]
y
[%]
y
2
[%]
x y
x x x
1 2
y
1
Scaling
y
x
Reference
1
x
quantities
x x
p2000 … r2004
1 2
x 100 %
2
Possible settings p0756[0] and p0756[1]:
<3>
= 0: 0 V ... +10 V
= 1: +2 V ... +10 V with monitoring
= 2: 0 mA ... +20 mA
= 3: 4 mA ... +20 mA with monitoring
= 4: -10 V ... +10 V (Default for AI0 and AI1)
<4> Wire breakage sensing only activated when p0756 = 1, 3.
<5> Values in brackets --> AI1
6 7
Function diagram
G120 CU240E-2
V4.4
F03505
"Wire
breakage"
CU AI T_smooth
p0753[0..1] (0.0)
8
- 9566 -