SENS MicroGenius S2/S4 Technical Manual
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TWO PORTS:
Remove one terminator
plug to connect load share
cable to either port
TWO PORTS:
Remove one terminator
plug to connect load share
cable to either port
6.8.2.
Modbus TCP/IP
—
Optional
Connect TCP/IP Modbus communications using a twisted pair cable at the RJ-45 connector on the
optional TCP/IP circuit board located on the inside front cover and separate from the
alarm/communications circuit board (see Figures 1-3 for location in charger). TCP/IP Modbus
communications settings must be configured using the DeviceInstaller Software provided by
Lantronix Inc. (see section
11.1
for further instructions).
6.9.
Load Share Connection—
Optional
Multiple chargers may be connected in parallel to provide charger redundancy and increased charging
current. Connect a network cable from one charger to another using the SENSbus RJ-45 ports on each
charger to automatically initiate load sharing. Two SENSbus RJ-45 ports are provided on the inside panel
between the AC and DC connections (see Figures 11-12). The ports are in parallel and either port may be
used for the load share connection.
Figure 11 – S2 RJ-45 Connection
Figure 12 – S4 RJ-45 Connection
Use of this sharing cable is essential to synchronizing operation of the Dynamic Boost and HELIX modes,
and helps insure that current is shared 10% between chargers. Chargers intended for load
sharing must be configured with the same output settings in order to load share. Corresponding outputs
must be configured with the same output settings for chargers with multiple outputs. Load sharing
operates independently on each output for chargers with multiple outputs. Connect corresponding
outputs of load sharing chargers in parallel (i.e. connect output A to output A). Load sharing will not
occur if non-corresponding outputs are connected (e.g. do not connect output A to output B).
See
section
9.13
for further information.
