HRX-OM-M091
Chapter 2 Contact input/output communication
HRS Series
2.1 Precautions for communication
2-1
Chapter 2 Contact input/output
communication
The device is equipped with a terminal which runs/stops the product. It is
also equipped with a terminal which picks up operation signals, alarm signals
and setting condition.
The device starts contact input/output communication according to the
setting of the operation display panel. Contact input/output communication
can be customized by changing the settings. Table 2-1 ‘’Customizable
content’’ shows the contents which can be changed by the operation display
panel.
Table 2-1 Customizable content
Signal
Can be changed
Contact input/output signal
(
2pcs.
)
Signal configuration
(
Alternate/Momentary
)
Contact input/output signal
(
3pcs.
)
Type of signal, signal operation
(
N.O type / N.C type
)
2.1 Precautions for communication
2.1.1
Precautions wiring communication
○
Communication wiring
A communication cable that connects the product and customer system is
not included with the product. Please prepare a cable, referring to 2.3
‘’Terminal block explanation (The connector is included.) In order to avoid
malfunction, do not connect to any place other than those shown in 2.3
‘’Terminal block explanation.
○
Power supply
To use the power of the product, the total load current must be 500mA or
less.
If the load is 500mA or more, the internal fuse is cut to protect the product
and the alarm [AL21 DC line fuse cut] is generated. Refer to the “Installation
/ Operation” of the operation manual for alarms.
Optional parts needs to be adjusted so that the total load is 500mA or less
referring the table below.
Table 2-1-1
Current consumption of optional parts
No.
Name
Part NO
Current
consumption
1
Drain pan set(with
water leakage sensor
)
HRS-WL001 25mA
2
Drain pan set(with
water leakage sensor
)
HRS-WL002 25mA
3
E
lectric resistivity sensor set
HRS-DI001
100mA
2.1.2
Precautions after wiring and before communication
○
Check or set the communication mode by the operation display panel.
・
Communication mode shall be DIO.
Other modes can perform reading, but only DIO mode can perform writing.
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