SMC Networks HRR012-A*-20 Series Operation Manual page 27

Operation start
Run
Run status of this product
Stop
CLOSE
External switch
OPEN
■Delay timer of reading
If the signal of the external switch prepared by the customer is not closed instantly when the
product is operated, set the delay timer for reading. By setting this timer, the external switch
monitoring starts after the time set by the delay time of reading since the operation start.
"0" is the default setting. Set a time which is suitable for your environment.
Example} When using a flow switch
■ OFF detection timer
If you do not want the alarm to be generated instantly when the external switch prepared by the
customer is in open status, but instead want the alarm to be generated after the switch has been
open for a specific time (continuous open status), set the OFF detection timer.
This timer enables the alarm to be generated when the time set for OFF detection time passes
after the switch is in OPEN status.The default setting is 0 sec. Set a time which is suitable for your
application.
■ Contact input
N.O type normally open (N.O.) or N.C. type normally closed (N.C.) can be selected for the
external switch. Set the signal which is suitable for the external switch prepared by the customer.
HRR Series
Delay timer of reading
When operation is started, it takes time for the fluid to reach the piping and the flow
switch to detect the flow. Set the time for the flow switch to start.
Chapter 2 Contact input/output communication
Signal reading
start
OFF detection timer
HRX-OM-W004
Operation
stops due to
the alarm.
Alarm
generation
2.5 Contact input signal
2-15