Xantrex ALM - REV A, Manual

Page: 15 / 36

2.0 INSTALLATION
11
©2001 Xantrex Technology Inc.
P/N 975-0027-01-01 Rev A 09/01
RY 11 Error Indicator Wiring
If an error indicator is used (light, buzzer, bell, etc.), connect the wires to the
RY11 relay contacts. Depending on the error indicator used, either the N.O. or N.C.
contacts can be used. Typically, the N.C. and COM contacts are used to complete a
circuit, turning on a light, buzzer, etc. The N.C. contacts are held “open” until an
error condition is detected (or the AC output is OFF); at which time the N.C. contact
will “close” completing the circuit and activating the external device.
Figure 2-5
External Error Indicator Connections
N.O.
N.C.
COM
External Error
Indicator
External Alarm
OFF Switch
EXTERNAL
INDICATOR
POWER SOURCE
ALM
NO SIGNAL FROM
INVERTER
(relay disengaged)
For convenience, add an external OFF switch in line with the alarm device. This
allows turning off the alarm until the inverter’s output is restored.
NOTE: The diagrams shown here are intended as an
example of how the relays operate an external alarm
device. Actual alarm types may operate differently from
these diagrams. Refer to the external indicator’s owner’s
manual for specific alarm wiring. Do not exceed the
voltage or amperage ratings of the relay and fuse.
Figure 2-6
External Alarm OFF Switch
N.O.
N.C.
COM
EXTERNAL
INDICATOR
POWER SOURCE
NO SIGNAL FROM
INVERTER
(relay disengaged)
External Error
Indicator
External Alarm
OFF Switch
CONTROL SIGNAL
FROM INVERTER
(relay engaged)
N.O.
N.C.
COM
External Error
Indicator
External Alarm
OFF Switch
EXTERNAL
INDICATOR
POWER SOURCE
ALM
ALM