Omron ZEN Operation Manual page 174

Application Examples
Parameter Settings
Calendar Timer Setting *0
*0
ON 11/15
OFF03/21
Start on Nov 15 and stop on
Mar 20
Offset startup time setting T0
T0 X S
TRG
RES 30.00
Set to 30 seconds.
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
DC power
R S T
supply
+ −
(200 VAC)
MC1 MC2
MC1 (Q0)
IM IM
Circulation fan Circulation fan
1 2
150
Weekly timer setting @0
@0 N
A
Start at 19:00 and stop at 6:00
Operation time setting T1
A
T1
TRG
RES
Set to 1 hour. Set to 1 hour.
Temperature
I4
sensor (0 to 10 V)
SW1 (I0) (Operate)
ON
SW2 (I1) (Stop)
OFF
ZEN-
10C@DR-D-V2
Temperature
Set
temperature
Circulation
fan 1
MC2 (Q1)
Circulation
fan 2
SU-SA A
ON 19:00
OFF06:00
X H:M A
01.00
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.
T0
Appendix E
Stop time setting T2
T2 X M:S A
TRG
RES 30.00
Set to 30 minutes.
Time
T0