20
4.3 DI Function/Alarm Output Wiring (Optional)
4.3.1 DI Function/Alarm Output Wiring Example
Fig. 4.3.1-1 DI Function Wiring Example
Fig. 4.3.1-2 Alarm Output Wiring Example
CAUTION
Precautions for DI Function Wiring
(1) DI function input has a built-in drive power source. Do not apply an external voltage to DI function input
terminals.
(2) DI function input contact capacity should be a withstanding voltage of 50 V DC, 16 mA or more,
ON resistance of 20
max. (wiring resistance included).
(3) Do not use unused terminals as relay terminals.
Precautions for Alarm Output Wiring
(1) An alarm output contact capacity is as follows.
250 V AC : 3 A max. (Resistive load)
30 V DC : 3 A max. (Resistive load)
125 V DC : 0.5 A max. (Resistive load)
0.1 A max. L/R= 7 ms max. (Inductive load)
(2) Attach an anti-surge protective circuit (surge absorbers, etc.) to an output terminal, when required.
(3) Attach a ring-type solderless terminal with an insulation sleeve (for M3.5) to the end of an electric wire.
(4) Keep alarm output wiring away from the input wiring.
(5) Do not use unused terminals as relay terminals.
WARNING
(1) Be sure to wire after turning POWER OFF.
(2) When the power source has been connected to the Alarm output, turn OFF that power source.
(3) When a hazardous voltage is supplied to the alarm terminal:
a) Never touch terminals.
b) Attach covers to terminals.
c) Wires should be double shielded.
d) Use ring-type solderless terminal connectors with an insulation sleeve.
CAUTION
The DI function (Option: RE1) consists of 3 Digital inputs.
The alarm output consists of 3-Relay output (Normally open).
Terminal Block
+12V
Recorder Side
COM
Load
1A
~
3A
Terminal Block
Recorder Side
DI1
~
3
DI.COM
1C
~
3C
Summary of Contents for HR-700
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