Operating instructions type-lines CXE/AVC (E)
Date 0917
TBL02_13-GB 0917
Art.-Nr. 00153342-GB
Seite 41 / 63
modulation
ON
actual>set =
+
Setpoin
Pband
100 %
Pband
OFF
actual>set =
+
Actual
value
12.7 Second Group
Second group „indirectly controlled“ (picture 1 )
Analog output „Analog OUT 1“ in IO Setup
function 5 A = group control is programmed.
This output is employed as the default signal for a speed controller. If the default signal or the regulation deviation
exceeds the group 2 switch-on point, group 1 is reduced to „n-min group 2”. Starting here, both groups run parallel at
maximum power.
Second group „100 % energized“ (picture 2 )
Relay output (K1 or K2) in IO Setup function 8 K = group control is programmed.
A contactor is triggered via this relay contact, which directly switches the fans of the second group to mains voltage.
If the default signal or the regulation deviation exceeds the „Group 2 ON value“ switch-on point, the relay for the
second group switches on and the speed of the first group is lowered to an adjustable minimum value. After that, the
speed of the first group increases back up to maximum.
12.8 Reverse action of the control function (actual Value>Set = n+)
For the effect of the regulation there are TWO functions
1
. Setting
ON
for
actual Value>Set = n+
^
increasing output voltage at increasing actual value
2
. Setting
OFF
for
actual Value>Set = n+
^
decreasing output voltage at increasing actual value
For special applications an
external switch over of control function is possible
(
)
IO Setup
→
Reverse for control
function).
Factory setting depending on selected mode
Example for temperature control
(Idealized principle diagram)
Mode
Control function
1.01 No
control
function
2.01 ..
ON
3.01 ..
ON
4.01 ..
OFF
5.01 ..
OFF
6.01 ..
OFF
1
Group 2
Group 1
0-100 %
Unicon
Signal 0-10 V
0-100 %
Motor
Controller
Group 2
Motor
Controller
Group 1
0-10 V
Output A1
0-10 V
OutputA2
2
0-100 %
Unicon
ON / OFF
100 %
contactor
Group 1
Group 2