Vector TCI-W11-H Overview page 12

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 Q
Stage 2 Q +Q
1
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: 70-00-0158, V1.4-20220321
Subject to alteration
Single
Q
1 1
Q
2 2
Q
C1,
W W
H C
O X
SH DZ
Digital
Q
1
Q
2
Q +Q
1 2
Q Q Q
D1 C2, D2
T [°C, F]
O
SC
U [V, mA]
© Vector Controls GmbH, Switzerland
TCI-W Universal Controller
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°(0.0°F)
0.0°(0.0°F)
1.0°(2.0°F)
1.0°(2.0°F)
0.5°(1.0°F)
10s
OFF
5 min
Page 12