INSTALLATION | Installation of SPMC models
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Doc #OI0003 Part #004122 Rev 04 2010
Current Shunt Wiring
DC Shunts must be installed into the Battery negative lead. Ensure that the shunt ONLY measures the
renewable or other DC load current and not any current feeding to or from the inverter.
The sense wires for the externals shunts should be fed up through the appropriate gland and terminated to the
SP PRO expansion card. The sense cabling should be kept as short as possible. “CAT5” type cabling or any
multi conductor multi strand cable is suitable for shunt sense wiring. Remember that these small cables are
connected to battery negative and an inadvertent short circuit with either lead to battery positive would short
circuit the battery bank. It is recommended that both these wires be fused.
The polarity of these shunt leads is not important if they are set to either “Load” or any of the input selections,
such as “Solar”; however polarity is important when using the shunt in “Dual” mode – that is where the shunt is
used for both input and output measurement to obtain a nett result.
Examples of the shunt wiring are given in Appendices B1 and B2.
Battery Temperature Sensor
The battery temperature sensor will be pre-wired to the expansion card and must be installed in
thermal contact with the centre of a side of a battery, insulated from external temperature effects
for accurate charging results. If the cable provided is not long enough it may be extended,
polarity of the cable is not important.
Generator Control Wiring
Generator control wiring should be fed up through the appropriate gland and terminated to the SP PRO.
“CAT5” type cabling or any multi conductor multi strand cable is suitable for all control wiring. The Expansion
Card can be plugged in and out of the SP PRO for ease of wiring.
Serial Port Connection
The communication cable can be attached to either of the RJ45 sockets on the control board.
Gland Plate Fitout
To maintain the IP rating and safety approval of the SP PRO, all gland plate holes must be completely filled.
For any unused holes, plug these with the supplied blanking plugs. If the plug is metal; once installed from
the underside of the gland plate, ensure that it is secured in place by bending all of the inner fingers tabs over
flush.
Initial Start up Procedure
Before turning on the SP PRO double check all connections, paying particular attention to correct polarity.
Give each cable a firm tug to ensure it is securely fitted. If satisfied everything is well, attach the terminal
cover plate and insert and secure the expansion card.
Connect the pre charge wires and wait until all LEDs are lit and stable.
Connect battery cables
Press output mode button (long press > 1 second) once, AC Load LED will be steady blue.
You can now start to use your SP PRO by turning on both AC Source and AC Load circuit breakers.
