TCI-W13, TCI-W23 Universal Controller
C
ONTROL LOOP
C
ONFIGURATION
Doc: 70-00-0365, V1.0, 20200304
© Vector Controls GmbH, Switzerland
Page 11
Subject to alteration
Legend
T, U
Input signal
O
SH
Offset heating/direct
O
SC
Offset cooling/reverse
X
DZ
Dead zone
X
SBY
Economy set point shift
W
H
Set point heating/reverse
W
C
Set point cooling/direct
Q
C
, Q
D
Binary sequences cooling/direct
Q
H
, Q
R
Binary sequences heating/reverse
Digital control sequence
Parameter Description
Range
Default
1L 16
Action of stages:
0 = cumulative: stage 1 stays on when 2 on comes on
1 = single: stage 1 turns off when 2 on comes on
2 = digital: stage 1 only, stage 2 only, then stage 1 plus 2
0...2
0
1L 17
Offset for heating/reverse binary sequences
per input
0.0 °C
(0.0 °F)
1L 18
Offset for cooling/direct binary sequences
per input
0.0 °C
(0.0 °F)
1L 19
Switching span heating
per input
1.0 °C
(2.0 °F)
1L 20
Switching span cooling
per input
1.0 °C
(2.0 °F)
1L 21
Switching hysteresis
per input
0.5 °C
(1.0 °F)
1L 22
Switching delay
0...255 s
10 s
1L 23
Activation of reverse/direct (heat/cool) sequence
OFF = activates based on demand
ON = follows heat/cool state of controller: Set manually or by
auxiliary function (FU20...FU23)
ON/OFF
OFF
1L 24
Delay for heat /cool changeover when L23=OFF
0...255 min
5 min
➔
Cumulative stage action (L16 = 0) is typically used in electric heat applications, and single stage action (L16 = 1) in
fan speed applications. Digital stage action (L16 = 2) is especially useful in electric heat applications to generate
three steps with just two outputs. For example: Step 1 = 100W, step 2 = 200W, step 3 = 300W.
➔
Switching hysteresis (L21) is the difference between switching on and switching off. A small hysteresis will increase
the number of switching cycles and thus the wear on associated equipment.
➔
With switching delay (L22) cumulative stages will not switch on simultaneously. With a sudden demand or initial
power stage 2 will not start earlier than 10 seconds (default value) after stage 1 has been initiated.
Cumulative
Single
Digital
Stage 1
Q
1
Q
1
Q
1
Stage 2
Q
1
+Q
2
Q
2
Q
2
Stage 3
Q
1
+Q
2
ON
OFF
T [°C, °F]
U [V, mA]
Q
C2,
Q
D2
O
SH
W
H
O
SC
X
DZ
W
C
X
H
Q
C1,
Q
D1
Q
H2,
Q
R2
