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10/06/11 Revision 1.1
4.5
Wiring the BBS
4.5.1
Wiring Overview
1)
Wire the bypass switch to the utility and signal cabinet (bypass switch is in “Bypass” position.
2)
Connect the black AC cords from the bypass switch to the BBS. Use the Cable Stay shown in
Figure 3 below.
3)
Connect the gray 2-conductor cable from the bypass switch to the BBS.
4)
Connect the gray 3-conductor cable from the batteries to the BBS.
5)
Connect the red DC battery connector to the BBS (THIS IS PART OF THE START-UP
PROCEDURE).
Figure 3:
4.5.2
Combo Bypass Switch (511016-1 or 511016-2) Wiring
a)
Make sure the external A.C. power is turned “Off”.
b)
Mount the Combined Manual Bypass Switch-30A Transfer Relay (CMBPS-30ATR) in the cabinet.
Toggle the Manual Bypass Switch to “Bypass Mode” to isolate the BBS from all AC inputs.
c)
Use the 6½-foot long 10-gauge wires that are supplied for all connections between the controller
terminal block and the CMBPS-30ATR. Use the existing utility feed wire when connecting to the
CMBPS-30ATR.
d)
Disconnect the A.C. utility line hot (black) wire entering the cabinet. Using the supplied red wire nut,
connect the A.C. utility line hot (black) wire to the black 10-gauge wire that is connected to the
CMBPS-30ATR terminal labeled “A.C. In”.
e)
Connect the red 10-gauge wire from the CMBPS-30ATR terminal labeled “A.C. Out” to the cabinet
A.C. utility line hot terminal disconnected in step “d)”.
f)
Connect the CMBPS-30ATR neutral and ground wires to controller grid neutral and ground buss
lines respectively.
g)
Connect the A.C. cords with plug and receptacle from the CMBPS-30ATR into the BBS matching
receptacle and plug A.C. cords respectively.
h)
Connect the CMBPS-30ATR 2-pin connector plug to the BBS relay 2-pin connector plug.
4.5.3
Temperature Compensation Cable Wiring
Connect the gray 3-conductor cable from the batteries to the BBS. The BBS uses a temperature
compensated battery charging system adjusts charge voltage over a range of 2.5 to 4.0 mV/
°
C per
cell.
Make sure that the lug of the temperature compensation cable is connected to the negative post of
a battery as shown in figure 9. This is important for proper charging. Do not just let this lug lay
in the cabinet disconnected or the batteries will not be charged as per their temperature.
