Omron ZEN User Manual

75
Using Timers (T) and Holding Timers (#) Section 3-6
Holding Timer Usage and Operation
O: One-shot pulse timer
Remains ON for a set interval when the trigger
input turns ON.
Basic Operation
Main Applications
Useful for fixed-quantity operation when
operation is always required for the same
period.
F: Flashing pulse timer
Turns ON and OFF repeatedly at set intervals
while the trigger input is ON.
Basic Operation
Main Applications
Useful as an alarm circuit for flashing
emergency lighting or buzzers.
W: Twin timer
Turns ON and OFF repeatedly at set intervals
while the trigger input is ON. The ON time and
OFF time can be set independently.
Basic Operation
Main Applications
Convenient for intermittent operation, such as
that used for fans.
X: ON delay timer only
Turns ON after a set interval after the trigger
input has turned ON. The present value is held
while the trigger input is OFF.
Main applications
When operation is to be continued even during
momentary power interruptions and longer
power interruptions. Also used for time-lag
operation.
Reset input
Trigger input
Setting
Present
value
Timer bit
0
Trigger input
Time
Output
Reset input
Trigger input
Setting
Present
value
Timer bit
0
Trigger input
Time
Output
Time
Time
Tim
e
Reset input
Trigger input
Present
value
Timer bit
0
ON time
OFF time
Trigger input
ON
time
Output
OFF
time
ON
time
OFF
time
Reset input
Trigger input
Setting
Present
value
Timer bit
0
Z211-E1-03.book Page 75 Friday, November 21, 2008 10:38 AM

Omron ZEN Specifications

General

Display	LCD
Mounting Type	DIN Rail
Operating Temperature	-10 to 55°C
Power Supply Voltage	100-240V AC
Output Type	Relay, Transistor
Number of Outputs	4-8
Programming Language	Ladder Logic