24
•
Sharing a ground line with other machinery or grounding to the girders of a
building may be ineffective and even harmful.
Other
ma-
chinery
Class-3
ground
NT2000M
LG GR
NT2000M
LG GR
Other
ma-
chinery
Okay
No
2-5-4
HOST RUN INPUT Terminal
Use the HOST RUN INPUT when you want to monitor the RUN status of the
host. When this input terminal is enabled by pin 2 of DIP switch 1, then, if the
HOST RUN INPUT turns OFF, PT processing will be interrupted and a prior-
ity message will be displayed indicating that a host error has occurred. This
condition will be maintained until the host RUN status is restored.
Enable:
Turn OFF SW1, pin 2.
Disable:
Turn ON SW1, pin 2.
NT20M
1000 pF
NT20M
620
Ω
5.6 k
Ω
HOST RUN
INPUT
24 VDC
Host
Host RUN status with
transistor ON.
Internal circuit
Power supply
circuit
NT2000M
HOST
RUN
INPUT
Host
Host RUN status
with transistor ON.
(This terminal has no polarity.)
620
Ω
5.6 k
Ω
1,000 PF
Internal circuit
Wiring and Connectors
Section 2-5
