Alpha Technologies INEX 100A STS Module and MBS+PDU - Manual (Page 14)

Argus Technologies Ltd. 019-061-C0 Rev A WC
Printed in Canada. © 2009 Argus Technologies Ltd. ARGUS is a registered trademark of Argus Technologies Ltd. All Rights Reserved. Page 4 of 26
Mains
Maintenance
(P4)
Mains
Inverter
Load
Backfeed Relay
Bypass Relay
MBS Main Contact1
MBS Main Contact2
SCR1
SCR2
Mains Maintenance:
Inverter powers the load
through the static switch
AC mains is disconnected
from the system, and the static
switch can not be removed
from the system
MBS can be switched from P4
to P3 and P5
Back-feed Relay and SCR1
open, and SCR2 closed
Inverter
Bypass
(P5)
Mains
Inverter
Load
Backfeed Relay
Bypass Relay
MBS Main Contact1
MBS Main Contact2
SCR1
SCR2
Inverter Bypass:
Load is powered through the
MBS by the inverters.
STS can be removed from the
system
MBS can only be switched
from P5 to P4 position
Back-feed Relay and SCR1
open, and SCR2 closed