Di/Alarm Output Wiring (Option); Di/Alarm Output Wiring Example - Toho Electronics TRM-10C Instruction Manual

4.3 DI/Alarm Output Wiring (Option)

WARNING
① Be sure to wire after turning off the POWER.
② When the power source has been connected to the Alarm output, turn off that power source.
③ When a hazardous voltage supplies to alarm terminal:
ａ） Never touch terminals preventing from electric shock.
ｂ） Attach covers to terminals.
ｃ） Wires should be double shielded.
ｄ） Adopts round pressure terminal connectors with insulation cover for wire, preventing from lose
connection.
CAUTION
Precautions for Wiring the DI
① DI input has the built-in drive power source. Do not apply a voltage to a DI input terminal from the
outside.
② A DI input contact capacity should be a withstand voltage of 50V DC, 16mA or more, ON
resistance of 20Ω max.(Wiring resistance included).
③ Do not use unused terminals as relay terminals.
Precautions for Wiring the Alarm Output
① An alarm output contact capacity is as follows：
250VAC ：
30VDC
125VDC ：
② Attach an anti-surge protective circuit (surge absorbers, etc.) to an output terminal, as required.
③ Attach a ring terminal with insulated sleeve (for M3.5) to the end of an electric wire.
④ Keep alarm output wiring away from input wiring.
⑤ Do not use unused terminals as relay terminals.
⑥ To comply with EN61010-1, do not connect AC and DC at the same time when using the alarm output.

4.3.1 DI/Alarm Output Wiring Example

DI1
DI.COM
Fig. 4.6 DI Wiring Example
3A at maximum (Resistive load)
：
3A at maximum (Resistive load)
0.5A at maximum (Resistive load)
0.1A at maximum L/R= 7ms at maximum (Inductive load)
+12V
Terminal Block
～
3
COM
Recorder Side
Terminal Block
～
1A 6A
～
1C 6C
Load
Fig. 4.7 Alarm Output Wiring Example
―20―
Recorder Side
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