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CompTrol Interface V4.0.x | Issue 21-05-2021 | 1000932
Program 9 – direct frequency request with cascading
For cascading with signal overlap, the 1st outdoor unit is controlled by an external analog signal
between the following signal ranges:
Analog signal type
Signal range of 1st outdoor unit
0-10 V DC
1 to 5.8 V DC
0-5 V DC
0.5 to 2.9 V DC
0-20 mA
2 to 11.6
mA
4-20 mA
5.6 to 13.3
mA
Table 59: Direct frequency request with cascading with signal overlap – signal range of 1st air conditioning unit
At and above the following analog signals, the 2nd outdoor unit also already starts up, until the
maximum compressor frequency is reached:
Analog signal type
Signal of 2nd outdoor unit
0-10 V DC
5 V DC
0-5 V DC
2.5 V DC
0-20 mA
10
mA
4-20 mA
12
mA
Table 60: Direct frequency request with cascading with signal overlap – signal of 2nd air conditioning unit
The analog signals of the 1st and 2nd outdoor unit overlap between the following signal ranges:
Analog signal type
Signal overlap of 1st and 2nd outdoor units
0-10 V DC
5 to 5.8 V DC
0-5 V DC
2.5 to 2.9 V DC
0-20 mA
10 to 11.6
mA
4-20 mA
12 to 13.3
mA
Table 61: Signal overlap of 1st and 2nd air conditioning units
For a description of setting signal ranges
C
and
D
for cascading with signal overlap, see section
“15.4.1 Setting the signal ranges via DIP switch S2” on page 82
.
15.4.1 Setting the signal ranges via DIP switch S2
16 signal ranges are stored in the CompTrol Interface. On both CompTrol Interface expansion
modules, set signal ranges
A
and
B
or
C
and
D
via DIP switches
S2-3
and
S2-4
.
Note
●
Make sure that the same analog signal type is set on each CompTrol Interface (see “Table 6:
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