Fig. 3-8 2251 – Analog inputs (AI 0 ... AI 1)
- 2251 -
Function diagram
87654321
fp_2251_97_04.vsd
Input/Output Terminals
G120D CU240D-2
09.12.2015 V4.7.6
Analog inputs 0 ... 1 (AI 0 ... AI 1)
[%]
xy
A
D
x
1
y
2
x
2
y
1
y
x
[%]
y
x
2
x
1
<2>
1
0
Hardware smoothing
100 µs
Scaling
Differential Input!
For an input signal referred to ground, terminal X10.7 must be connected to reference potential M.
Notice:
The voltage between inputs and between input and the ground point must not exceed 35 V. If this is not observed, the input will be damaged.
Possible settings p0756[0] and p0756[1]:
= 0: Unipolar voltage input (0 V ... +10 V)
= 8: No sensor connected
r0752
CU AI U/I_inp act
Sampling time of the AI: 4 ms
r0755
CU AI value in % [%]
Values in brackets --> AI 1
Type switching
Analog input
CU AI type
0 ... 8
p0756[0..1] (0)
CU AI sim_mode
0 ... 1
p0797[0..1] (0)
CU AI sim setp
-50.000 ... 2000.000
p0798[0..1] (0.000)
CU AI char y1
-1000.00 ... 1000.00 [%]
p0758[0..1] (0.00)
CU AI char y2
-1000.00 ... 1000.00 [%]
p0760[0..1] (100.00)
CU AI char x1
-50.000 ... 160.000
p0757[0..1] (0.000)
CU AI char x2
-50.000 ... 160.000
p0759[0..1] (10.000)
CU AI T_smooth
0.0 ... 1000.0 [ms]
p0753[0..1] (0.0)
-10 … +10 V
<1>
<3>
AI 0/1
X10.3
(X10.4)
X10.7
(X10.7)
–
+
[0..1]
<1>
<2>
<3>
x
x
1
• x
2
100 %
Reference quantities
p2000 … r2004
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