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Wiring and Connectors
2-5-3
LG and GR Terminals
2-5-4
HOST RUN INPUT Terminals
Host RUN status
with transistor ON.
26
• Insulated Transformer
The NT600M has built-in anti-noise features which are sufficient for handl-
ing general noise from power lines, but ground noise can be greatly re-
duced by supplying power through a 1:1 insulated transformer. The second-
ary side of the insulated transformer should be an isolated neutral system.
• Power Capacity
Use a rated power supply (100 to 240 VAC; 50/60 Hz) of at least 50 VA.
• If power lines are long, then use wires of at least 2 mm
voltage.
• Use twisted-pair cables.
HOST
ALARM
RUN
OUTPUT
INPUT
100 to 240 VAC
LG
50/60 Hz
• GR is the ground terminal. In order to avoid electric shock, use separate
ground wire (at least 2 mm
100 W or less).
• LG is the noise filter neutral terminal. If malfunction results from excessive
noise, or to prevent electrical shock, short-circuit LG and GR and use a
class-3 dedicated ground.
• The ground line should be 20 m or less.
• Sharing a ground line with other machinery or grounding to the girders of a
building may be harmful.
Use the HOST RUN INPUT when you want to monitor the RUN status of the
host.
Enable:
Turn OFF SW1, pin 2.
Disable:
Turn ON SW1, pin 2.
Host
24 VDC
HOST
620 W
RUN
INPUT
5.6 kW
(This terminal has no polarity.)
Terminal screws are M4.
GR
2
) and a class-3 ground (ground resistance
1,000 PF
Section 2-5
2
to avoid a drop in
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