150
Application Examples Appendix E
Parameter Settings
Greenhouse Air Circulation Control (3/3) (Analog
Comparator)
Application
The ZEN can be used to start the circulation fans once the temperature has reached a
set level. A low startup current would result from a difference in the fan startup times.
System Configuration
Set to 30 minutes.
*0 A
ON 11/15
OFF03/21
@0 N SU-SA A
ON 19:00
OFF06:00
T0 X S A
TRG
RES 30.00
T1 X H:M A
TRG
RES 01.00
T2 X M:S A
TRG
RES 30.00
Calendar Timer Setting *0
Start on Nov 15 and stop on
Mar 20
Weekly timer setting @0
Start at 19:00 and stop at 6:00
Offset startup time setting T0
Operation time setting T1
Set to 30 seconds.
Set to 1 hour.
Stop time setting T2
Set to 1 hour.
T0 T0
RST
I4
ON
OFF
+
−
MC1 MC2
MC1 (Q0) MC2 (Q1)
IM IM
DC power
supply
Temperature
sensor (0 to 10 V)
SW1 (I0) (Operate)
SW2 (I1) (Stop)
ZEN-
10C@DR-D-V2
Circulation fan
1
Circulation fan
2
Circulation
fan 1
Circulation
fan 2
The temperature is detected by a 0- to 10-V
temperature sensor. The circulation fans
will start operation when the analog input
voltage exceeds 5.2 V.
Temperature
Set
temperature
Time
(200 VAC)
Z211-E1-03.book Page 150 Friday, November 21, 2008 10:38 AM
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