Siemens CU230P-2 HVAC Parameter Manual page 457

AI2 TEMP
°C I
Kl.50
+
<1>
-
Kl.51
GND
0 ... 20 mA
°C
<1> Caution:
The voltage between an input (Kl.50) and the ground point (Kl.51) must not exceed 35 V.
When the load resistor is switched in (DIP switch in position
must not exceed 10 V or the impressed current 80 mA.
<2> For p0756 = 2, 3 the units are mA.
For p0756 = 6, 7 the units are °C.
Kl. = Terminal
1 2
External Interfaces
Analog input 2 (AI2)
CU AI sim_mode
0 ... 1
[2] (0)
p0797 (0)
1
20 mA
0
I
Hardware smoothing
100 μs
A
Type switching
Analog input
D
CU AI sim setp
-50.000 ... 2000.000
p0798 (0.000) [2] (0)
<2>
I), the voltage between the input terminals
3 4
<2> <3>
CU AI type
0 ... 8
p0756 (4)
[2] (2)
CU WireBrkThresh
3
20 mA
3
<2>
CU AI inp_V/I
r0752 [2]
CU AI sim_mode
0 ... 1
[2] (0)
p0797 (0)
CU AI char y2
-1000.00 ... 1000.00 [%]
0 p0760 (100.00) [2] (100)
1 CU AI char y1
-1000.00 ... 1000.00 [%]
p0758 (0.00)
[2] (0)
CU AI value in % [%]
r0755 [2]
Sampling time of the AI : 4 ms
5 6
FP_9568_97_01.vsd
29.10.2009
<4>
CU wire brk t_del CU AI status word
0.00 ... 20.00 0 ... 1000 [ms]
r0751
[2] (100)
p0761 (2.00) [2] (2) p0762 (100)
T 0
<2> <2>
CU AI char x1 CU AI char x2
-50.000 ... 160.000 -50.000 ... 160.000
p0757 (0.000) [2] (0) p0759 (10.000) [2] (10)
CU AI T_smooth
0.0 ... 1000.0 [ms]
y
[%]
y
2
[%]
x y
x x x
1 2
y
1
Scaling
x y
Bezugsgrößen
1
p2000...r2004
x x
1 2
x
2
100 %
<3> Possible settings p0756[2]:
= 2: 0 mA ... +20 mA (Default for AI2)
= 3: 4 mA ... +20 mA with monitoring
= 6: Ni1000
= 7: PT1000
<4> Wire breakage sensing only activated when p0756 = 3.
7
Function diagram
G120 CU230P-2
V4.3
F03505
"Wire
breakage"
[2] (0)
p0753 (0.0)
8
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