8.2.3 Function diagrams two-position controller
2.03
In mode
2.03
, in addition to the proportional controller via the 0...10 V output (see
functional diagrams
2.01
), a two-position controller is active via the relay "K1".
The two-position controller can be operated in heating function or in cooling function.
The desired mode of operation can be determined by the function of "K1" (see IO
SETUP Digital output "DO").
The switch-on point of the relay deviates from the current setpoint temperature by the set
offset "OffsetDigitalOut". Switched on = relay "K1" energized (terminals "13" - "14"
bridged), if relay not inverted.
•
“
0.0 K
”
set, i.e. heating/cooling
“
ON
”
when: actual value = setpoint
•
During negative offset value heating/cooling
“
ON
”
when: actual value = Setpoint -
offset
•
During positive offset value heating/cooling
“
ON
”
when: actual value = se
offset
Examples: triggering a heating, setting
|
9K
|
for K1 (factory setting)
Setpoint 15.0
°
C, 5.0 K, Hysteresis 2.0 K
Setpoint 20.0
°
C, Offset -5.0 K, Hysteresis
2.0 K
10
12
14
16
18
20
22
24
26
28
30
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
[min]
[
°C
]
ON
ON
ON
ON = 15°C + 5 K = 20 °C
OFF = 20°C + 2 K = 22 °C
1
6
.0
3
.2
0
0
7
v
_
re
la
is
_
h
e
iz
e
n
_
9
k
_
p
o
s
_
o
ff
s
e
t.
v
s
d
10
12
14
16
18
20
22
24
26
28
30
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
[min]
[
°C
]
ON
OFF = 15°C + 2 K = 17 °C
ON = 20°C - 5K = 15 °C
ON
1
6
.0
3
.2
0
0
7
v
_
re
la
is
_
h
e
iz
e
n
_
9
k
_
n
e
g
_
o
ff
s
e
t.
v
s
d
If the ambient temperature is lower than the set operating point, the heating remains switched on. If
the ambient temperature exceeds the set operating point of the heating by 2.0 K (Kelvin), the
heating is switched off. I.e., the release point is situated at the hysteresis value over the operating
point.
Example: triggering a cooling, setting
|
10K
|
for
“
K1 (factory setting)
”
Setpoint 15.0
°
C, 5.0 K, Hysteresis 2.0 K
10
12
14
16
18
20
22
24
26
28
30
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
[min]
[
°C
]
ON
ON
ON
ON = 15°C + 5 K = 20 °C
OFF = 20°C - 2 K = 18 °C
1
6
.0
3
.2
0
0
7
v
_
re
la
is
_
k
u
e
h
le
n
_
1
0
k
_
p
o
s
_
o
ff
s
e
t.
v
s
d
If the ambient temperature is higher than the set operating point, the cooling remains switched on. If
the ambient temperature falls below the set operating point of the cooling by 2.0 K (Kelvin), it is
switched off. I.e., the OFF point is situated at the hysteresis value under the operating point.
Operating Instructions
UNIcon
CTG-150AVC
Programming
L-BAL-E287-GB 2015 Index 004
Part.-No.
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