Best Power 610 - UPS Optional Features
Output 1 (DB9 female connector)
To install the Best Relay (AS400®) card, complete the following steps:
1.
Shut down your protected load. Press the UPS or (Standby) switch and remove the input line
cord from the wall socket.
CAUTION : Even with the UPS switched off, dangerous voltages may still be
present at the UPS or its outlets.
2.
Remove the communications slot cover on the rear of the UPS by removing the two retaining screws.
Slide the Best Relay (AS400®) card option into the slot and secure it with supplied screws.
3.
Store the communications slot cover plate for reinstallation in case the Best Relay (AS400®) card
option be removed and decommissioned in the future.
4.
The Best Relay (AS400®) card will now be operational when the UPS is turned on and returned to
service.
Output 2 (ES 2 Pin connector)
5.2 Best Relay (AS400®) Card Installation and Operation
10
A plug with link is supplied with the Best Relay (AS400®) card
option. This plug must be installed for normal operation. If this
plug is removed, the load will be transferred to bypass.
The plug is removed only in applications where an external
maintenance bypass switch is used. When using an external
bypass switch, remove the link in the plug and connect the red
and black wires from the cable routed out of the left side of the
bypass switch cabinet.
Pin No
Signal Name
Definition
I/O
Coments
1
UPS Fail
Normally open, active will close
0
Relay contact
2
Summary alarm
Normally open, active will close. Active
0
Relay contact
when UPS fails, bypass activated, utility
power and low battery status
3
Remote Shutdown (-)
Ground
4
Remote Shutdown (+)
Activated by +5 ~ 12V for 1 sec duration
1
5
Common
Common connection for pins
Relay common
1,2,6,7,8 & 9
6
Bypass
Normally open, will close
when UPS is in bypass mode
0
Relay contact
7
Battery Low
Normally open, will close when
0
Relay contact
battery is almost discharged
8
UPS - ON
Normally open, will close when
0
Relay contact
UPS is on.
9
Utility line failure
Normally open, will close when
0
Relay contact
ac input fails.
AS400 DB9 Pin out connections
Plug
Link
