14
Figure 14 – S2A-406 Board Connections
2.6
Load Sharing
All TPSD2
chargers include the Load Sharing feature. Load sharing allows the user to parallel with any identical
TPSD2 to share a DC load and therefore reduce the strain on each charger. When connected, identical TPSD2
chargers are forced to share the load within ±5% for individual unit outputs greater than 10% of the rated output.
Chargers to be paralleled
MUST
be the same output (voltage and current).
NOTE:
Ground Detection should only be enabled on one charger when load sharing. See Section 2.9 to disable.
If load sharing is to be used with a battery that requires periodic Equalize cycles, the chargers should also operate
in Remote Equalize mode (See Section 2.7 for instructions).
Load Sharing Procedure
Before making any connections to the TPSD2, ensure that the AC power is off at the main breaker box and that
all of the chargers’ breakers are off. Verify no voltage is present by using a voltmeter at all input and output
terminals.
Procedure for Standard Chargers:
1.
Connect the DC output of all chargers in parallel to the same DC load/battery.
2.
Locate terminal strip
TS-5
inside the chargers.
3.
Connect the
LS
terminal of one charger to the
LS
terminal of the next charger. This connection can be made
with a 16 AWG wire. Refer to Figure 13.
4.
Once batteries are fully charged and/or loads are stabilized, turn OFF all chargers except for one.
5.
Take a voltage reading of the Float voltage on the output of the charger.
6.
Turn on the next charger, turn off the first charger.
7.
Set the output voltage of the next charger to match the first by adjusting the Float voltage using the Settings
Menu (refer to Section 3.4.1.1).
8.
After all chargers have been adjusted, turn ON all chargers.
9.
Repeat steps 4 through 8 for Equalize.
Procedure for Chargers with S2A-406 Board:
1.
Connect the DC output of all chargers in parallel to the same DC
load/battery.
2.
Locate terminal strip
J4
on S2A-406 board inside the chargers.
3.
Connect terminal
6
of
J4
of one charger to terminal
6
of
J4
of the next
charger. This connection can be made with a 16 AWG wire. Refer to
Figure 14.
4.
Once batteries are fully charged and/or loads are stabilized, turn OFF all
chargers except for one.
5.
Take a voltage reading of the Float voltage on the output of the charger.
6.
Turn on the next charger, turn off the first charger.
7.
Set the output voltage of the next charger to match the first by adjusting
the Float voltage using the Settings Menu (refer to Section 3.4.1.1).
8.
After all chargers have been adjusted, turn ON all chargers.
9.
Repeat steps 4 through 8 for Equalize.
Figure 13 – TS-5 Terminal Connections (Schematic Wiring)
