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Digital control sequence
Parameter
Description
Action of stages:
0= cumulative: stage 1 stays on when 2 on comes on
1L 16
1= single: stage 1 turns off when 2 on comes on
2= digital: stage 1 only, stage 2 only, then stage 1 plus 2
1L 17
Offset for heating/reverse binary sequences
1L 18
Offset for cooling/direct binary sequences
1L 19
Switching span heating
1L 20
Switching span cooling
1L 21
Switching hysteresis
1L 22
Switching delay
Activation of reverse/direct (heat/cool) sequence
OFF=
activates based on demand
1L 23
ON =
follows heat/cool state of controller: Set manually or by
auxiliary function (FU20-FU23)
1L 24
Delay for heat /cool changeover when L23=OFF
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.
Cumulative
Stage 1
Stage 2
Q
Stage 3
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.
Q
Q
H2,
R2
ON
OFF
X
H
Doc: 70-00-0365C, V2.0, 20220523
Subject to alteration
Single
Q
Q
1
1
+Q
Q
1
2
2
Q
C1,
W
W
H
C
O
X
SH
DZ
© Vector Controls GmbH, Switzerland
TCI-W13, TCI-W23 Universal Controller
Digital
Q
1
Q
2
Q
+Q
1
2
Q
Q
Q
D1
C2,
D2
T [°C, °F]
O
SC
U [V, mA]
C
C
ONTROL LOOP
ONFIGURATION
Range
0–2
per input
per input
per input
per input
per input
0–255s
ON/OFF
0–255 min
Legend
T, U
Input signal
O
Offset heating/direct
SH
O
Offset cooling/reverse
SC
X
Dead zone
DZ
X
Economy set point shift
SBY
W
Set point heating/reverse
H
W
Set point cooling/direct
C
Q
, Q
Binary sequences cooling/direct
C
D
Q
, Q
Binary sequences heating/reverse
H
R
Default
0
0.0°C (0.0°F)
0.0°C (0.0°F)
1.0°C (2.0°F)
1.0°C (2.0°F)
0.5°C (1.0°F)
10s
OFF
5 min
Page 14-22
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