Installation - Selectronic SP PRO Custom Installation Notes

SP PRO Powerchain
Installation Note

Installation

The SP PROs must be installed as per the installation instructions in the user manual.
It is a good idea to place a label on the top right-hand corner of each SP PRO. This will help to identify
each inverter in the Powerchain system during system commissioning and testing.
AC Wiring
All Neutral connections from inverters must be connected together at the same common point as required.
The neutral conductor connecting to the loads must be maintained such that operation of any external
SP PRO isolators cannot sever the link between Neutral and Earth.
All of the AC wiring linking the Load L and N circuits between any particular phase manager and its
workers complies with the following:
1. The L and N cables either run in the same conduit or a twin cable is used. It is important that
the cable pairs run in parallel and do not separate.
2. Minimise the cable length between an SP PRO and the sub board where it is connected to the
other SP PROs on the same phase. The maximum allowable cable run is 10 metres from SP PRO
to sub board.
SINGLE PHASE TWO WORKERS EXTERNAL CONTACTOR (OPTION 1)
Figure 1 shows the SP PRO Single Phase Powerchain AC wiring schematic with two workers and an external
CT & AC source contactor.
Figure 1: Single Phase AC wiring schematic with external contactor/CT and two workers
AC Source Power > 15 kW for SPMC or 30 kW for SPLC models
IN0057 Revision 02 – 2 of 16
POWER PERFORMANCE PASSION