3-2
TBC OPR 071019
FIGURE 3-1. LOCAL ERROR SENSING CONNECTIONS
3.5
LOAD CONNECTION, METHOD 2 (REMOTE ERROR SENSING)
To avoid excessive output effects at remote loads, remote error sensing must be used. The links
between the +S and + M terminals and between the -S and -M terminals must be removed. Use
a twisted, shielded pair of wires from the Sensing Terminals directly to the load to compensate
for load wire voltage drops. Observe polarities: The negative Sensing wire must go to the nega-
tive load wire, and the positive Sensing wire goes to the positive load wire.
The Remote Sensing terminals must be connected to their respective output terminals, either at
the load or at the TBC output; otherwise the TBC will not operate properly. Connecting the +S
and -S terminals directly to the + and – load automatically compensates for voltage drops in the
connecting cables of up to a maximum of 0.40 Volts per cable. Figure 3-2 shows the TBC con-
nected to a battery and multiple loads using remote sensing.
