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Magnum XS 450 Power System –48 VDC User’s Manual Page 28
External Alarm Input Connections
Four external alarm inputs with assignable priority levels are available. These alarm inputs
respond to external dry contact closures between normally open (N/O) and common (C) or
contact openings between normally closed (N/C) and C.
External Alarm
Source
(non-alarm state)
Connect To Input
Alarm Terminals
OPEN
CLOSED
NO-C
NC-C
Table 3.10-2 External Alarm Input Definition
Wago Connectors are located on the customer interface card mounted in the top right side of
the unit. Systems are shipped with jumper wires connecting each N/C and corresponding C
contact. A jumper wire should be removed only if the corresponding N/C-C contacts are
going to be used.
EXTERNAL
ALARM
INPUT
TERMINAL
DESIGNATION
(N/O-N/C-C)
USER ALARM NOTES
#1
#2
#3
#4
N/O1-N/C1-C1
N/O2-N/C2-C2
N/O3-N/C3-C3
N/O4-N/C4-C4
___________________________
___________________________
___________________________
___________________________
Table 3.10-3 External Alarm Input Connections