Phoenix Contact SCK-C-MODBUS User Manual page 26

Solarcheck family
26
PHOENIX CONTACT
Different potential levels may occur depending on the structure and connection of the PV
system. The following voltage ranges can be acquired by the device and represented as an
analog value.
Table 4-1 Valid voltage ranges - part 1
U+
U- 0
0 2.00 V
2.53 V
100
200 3.07 V
3.60 V
300
400 4.13 V
4.67 V
500
600 5.20 V
5.73 V
700
800 6.27 V
6.80 V
900
1000 7.33 V
7.87 V
1100
1200 8.40 V
8.93 V
1300
1400 9.47 V
10.00 V
1500
Table 4-2 Valid voltage ranges - part 2
U+
U- -800
0 6.27 V
100 6.80 V
200 7.33 V
300 7.87 V
400 8.40 V
500 8.93 V
600 9.47 V
700 10.00 V
The inner range represents the respective analog value that is issued by the device under
the respective voltage conditions.
-100 -200 -300
2.53 V 3.07 V 3.60 V
3.07 V 3.60 V 4.13 V
3.60 V 4.13 V 4.67 V
4.13 V 4.67 V 5.20 V
4.67 V 5.20 V 5.73 V
5.20 V 5.73 V 6.27 V
5.73 V 6.27 V 6.80 V
6.27 V 6.80 V 7.33 V
6.80 V 7.33 V 7.87 V
7.33 V 7.87 V 8.40 V
7.87 V 8.40 V 8.93 V
8.40 V 8.93 V 9.47 V
8.93 V 9.47 V 10.00 V
9.47 V 10.00 V
10.00 V
-900 -1000 -1100
6.80 V 7.33 V 7.87 V
7.33 V 7.87 V 8.40 V
7.87 V 8.40 V 8.93 V
8.40 V 8.93 V 9.47 V
8.93 V 9.47 V 10.00 V
9.47 V 10.00 V
10.00 V
-400 -500 -600
4.13 V 4.67 V 5.20 V
4.67 V 5.20 V 5.73 V
5.20 V 5.73 V 6.27 V
5.73 V 6.27 V 6.80 V
6.27 V 6.80 V 7.33 V
6.80 V 7.33 V 7.87 V
7.33 V 7.87 V 8.40 V
7.87 V 8.40 V 8.93 V
8.40 V 8.93 V 9.47 V
8.93 V 9.47 V 10.00 V
9.47 V 10.00 V
10.00 V
-1200 -1300 -1400
8.40 V 8.93 V 9.47 V
8.93 V 9.47 V 10.00 V
9.47 V 10.00 V
10.00 V
-700
5.73 V
6.27 V
6.80 V
7.33 V
7.87 V
8.40 V
8.93 V
9.47 V
10.00 V
-1500
10.00 V
105608_en_00