6 Using the contact signal functions
6-3 Remote ON/OFF connector
BN50T/BN75T/BN100T/BN150T/BN220T/BN300T
6-6
2. Carefully insert the contact signal card whose settings have been changed, and se-
curely tighten the 2 screws.
<BN50T/75T> <BN100T/150T> <BN220T/300T>
Note
When connecting a device such as a relay that generates counter electromotive force
to the signal output circuit, connect diodes that prevent counter electromotive force to
both ends of the relay.
6-3 Remote ON/OFF connector
Additional Information
Connection terminals are at contact signal connector pins 6,7 and the remote
ON/OFF connector. Either can be used according to the system.
6-3-1 Type of Input signal
Signals Ratings
Remote ON/OFF Signal Remote ON/OFF signals can be used to start and stop the
UPS, by using either an externally connected contact or the
ON/OFF status of the open collector circuit.
When signal is OFF, the UPS will be turned on. When signal is
ON, the UPS will be turned off.
This is OFF when short-circuit at the factory settings (Note 1).
In addition, it is necessary to turn on the power supply switch
of UPS to use this function (Note 2).
Note 1: If you want the UPS to stop operation when this is open, or if you want to disable this
function, specify OFF or disable in “Setting” - “Dry Contact” - “Remote ON/OFF Logic”.
Note 2: When there is no AC power supply, it is not possible to start up UPS by the remote
ON/OFF signals even though cold start is set ON.
6-3-2 Remote ON/OFF connector
Pin assignment Pin
number
Signal
name
12
Front view
Screw size: Inch screw
#4-40 UNC
1 Remote
ON/OFF (+)
2 Remote
ON/OFF (-)
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