Operation Section
35
6.4 Warning Signal Connection (Output Signal Terminal L+ and L-)
• The unit is equipped with a warning signal output relay type (Form-C, normal open dry contact)
that can be used to monitor the failure condition.
• The relay contactor is closed when the self-diagnostic codes are displayed on the WMC and
indicated by LED on the relay board.
• The relay output contactor is rated 2 A at 30 VDC or 2 A at 30 VAC maximum with resistive load
and is compatible with various warning devices such as alarm speakers, light indicators, etc.
Use the recommended warning signal wire size from 16 AWG to 26 AWG for a solid wire, or 16
AWG to 22 AWG for a stranded wire.
• Connect the warning signal wires to terminal L+ and L- in the unit control box according to the
labels shown below.
ILL00286-00
L–
L+
E–
E+
G4
C4
P
RC
Y1
Y2
G
G1
Unit Terminal
Warning Device
Signal
Relay Output Contactor
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