HRX-OM-Y120
Chapter 2 Contact input/output communication/Analog output communication
2.3 Contact input signal
HRL Series
2-8
4) Digital input signal 1 is for Run/Stop signal (Signal type: Alternate), digital input signal
2 is for external switch signal (Signal type: Alternate).Refer to Chapter 2.3.3 for details of
the external switch.
(1) The product starts operation when the Run/Stop signal from the user is turned ON.
(2) It reads the signal of the external switch signal (N.O type) after the time which has
been set for the [Delay] time.
(3) When the external switch signal (N.O. type) has been turned off for the time set for
[Off Detection] time, it is recognized as OFF.
(4) Alarm [AL31:Contact input 2 signal detection] is generated. The operation of the
product stops.
(5) The product stops operation when the Run/Stop signal is turned OFF during
operation. Afterwards, the alarm is not generated even if the external switch signal
is turned OFF.
2.3.3 External switch signal
The product has two contact inputs available to detect the contact input signal.
This allows reading and monitoring the contact signal from an external switch.
When inputting an external switch signal to the contact input, select “External
Switch” (external switch signal) for the type of contact input signal.(Refer to
“2.3.1
Setting of contact input signal type and form
”)
If an input from an external switch is detected, it can be generated as an
alarm.
Options to select “continuous monitoring” or “monitoring during
operation” are available. Also, the detection start time after the start of
operation and the detection end time can be set.
・
If the signal of “contact input 1” is detected: the alarm “AL30: Detection
of contact input 1 signa
l” is activated.
・
If the signal
of “contact input 2” is detected: the alarm “AL31: Detection
of contact input 2 signal” is activated.
・
“Delay” time: sets the start time to detect the contact input signal after
the start of operation.
・
“Off detect” time: sets the time between the detection of the contact input
OFF signal and the activation of the alarm.
Table
2.3-2
Monitoring method for contact input signal
“Delay” time
Monitoring method
0sec
Continuous monitoring
1 to 300sec
Monitoring during operation
O
FF
ON
Run
Stop
Product condition
O
FF
ON
External switch signal
[Off Detection] time
③
④
①
②
Run/Stop signal
[Delay] time
