Bard D36A2P/BLD.10304, Installation And Service Instructions Manual

Page: 25 / 107

Manual 2100-620A
Page 25 of 107
1. Using minimum 18 gauge, non-shielded wire, supply the
new hydrogen detector with 24VDC from terminals 3 and 4
of the PLC controller.
2. Route a jumper wire from the -24VDC terminal on the new
hydrogen detector to the common terminal of the on-board
2% relay.
3. From the normally closed contact of the relay, return the
-24VDC signal to terminal #5 of the PLC controller.
-24VDC
Return
Signal
-24VDC
+24VDC
-24VDC
+24VDC
FIGURE 1.18
LC1000-100 and LC1500-100 Series Generator Run
NC COM
1. If there is a generator on site, remove the factory-
installed jumper on Terminals #9 and #10. Using
minimum 18 gauge, non-shielded wire, supply the
common terminal on the existing generator relay with
-24VDC from terminal #9 on the PLC controller.
2. From the normally closed contact of the relay, return
the -24VDC signal to terminal #10 of the PLC
controller.
-24VDC Return Signal
-24VDC
See Terminal Block Index
on page 33
FIGURE 1.17
Power and Signal Connections for Bard-Supplied Hydrogen Detector (If Applicable)