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IMSBR10-E1
Before Using the Recorder
2
2.4 Optional Terminal Wiring
General Precautions to be Taken While Wiring the Input/Output Signal
Wires
WARNING
• To prevent electric shock while wiring, ensure that the power supply source is turned OFF.
• If a voltage of more than 30 VAC or 60 VDC is to be applied to the output terminals, use ring-tongue
crimp-on lugs with insulation sleeves on all terminals to prevent the wires from slipping out when the
screws become loose. Furthermore, use double-insulated wires (dielectric strength of 2300 VAC or
more) for the signal wires on which a voltage of more than 30 VAC or 60 VDC is to be applied. For
all other wires, use basic insulated wires (dielectric strength of 1390 VAC). To prevent electric shock,
attach the terminal cover after wiring and make sure not to touch the terminals.
Crimp-on lug with insulation sleeves
(for 4 mm screws)
CAUTION
• To prevent fire, use signal wires having a temperature rating of 70C or more.
• If a strong tension is applied to the cable wired to the recorder, the terminals of the recorder and/or the
cable can be damaged. In order to prevent tension from being applied directly on the terminals, fasten
all wiring cables to the rear of the mounting panel.
Arrangement of the Optional Terminals
As shown in the figure below, the optional terminal block is located on the rear panel.
The optional terminal block is provided on the recorder when an option that requires input/output is installed such
as the alarm output relay (/A1, /A2, /A3, /A4 or /A5 option), FAIL/chart end output (/F1 option), and remote control
function (/R1 option). A terminal cover is screwed in place on the optional terminal block. A label indicating the
terminal arrangement is affixed to the terminal block.
Optional terminal block
Terminal cover
attachment screws
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