TBC OPR 071019
3-3
FIGURE 3-2. REMOTE ERROR SENSING CONNECTIONS
3.6
PARALLEL OPERATION
Up to three identical TBC Battery Charger Power Supplies can be connected in parallel opera-
tion, except for models TBC 48-60M and TBC 24-120M, which have two power supplies in par-
allel that are built into the units. For the TBC 48-60M or TBC 24-120M only one additional TBC
unit can be connected in parallel. For parallel operation it is necessary to connect the Current
Balance terminals together (terminal 9 on TB1) for all the TBC units in operation (see Figure 2-
3).
NOTE: To operate up to three TBC Battery Charger Power Supply units in parallel, set the
desired output voltages, at the load, for each TBC battery charger. Remove the links between
the + Sense and + Monitor Terminals and between the -Sense and -Monitor Terminals for each
TBC Battery Charger. Connect TB1 and TB3 for all the TBC units as indicated in Figure 3-2.
This diagram is not valid for the TBC 24-120M and TBC 48-60M since these units already have
two Power Supplies in parallel that are built in to them. Therefore only one other TBC Battery
Charger can be placed in parallel with either one of these two models.
