SP LINK | Configuration Settings
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Doc #OI0005 Rev26 2020
Shunts Settings
The Shunts tab contains settings required to configure the connected DC current shunts that are used to
measure the currents going in or out of the battery bank. The shunt readings are used by the SP PRO series to
accurately calculate the state of charge of the batteries (System SoC).
A shunt is not required to measure the SP PRO battery current as this is measured internally.
In a Powerchain system the shunts are only allowed in the System Manager (L1 manager).
All shunts are configured for their maximum current and the millivolts at that maximum current. For example for
a current shunt rated at 75mV 100A,
Max Voltage
= 75 and
Max current
= 100.
The table below describes the function of each of the Shunt Names
SHUNT TYPE
DESCRIPTION
Solar, Wind,
Hydro, Charger
Unidirectional - Measures charging sources. Always assumes charging current so the
polarity of the shunt is not critical
Load
Unidirectional - Measure DC loads. Always assumes load current so polarity not critical.
Dual
Bidirectional - Measure DC charging and DC loads. The polarity of the shunt IS critical.
Multiple
SP PROs
Bidirectional - Legacy setting that was previously used in Off Grid, multiphase (three
phase of split phase)
Not used in Powerchain systems.
Log Only
Bidirectional - Used to measure and log a current that is NOT part of the system battery
current measurement. This shunt type does to affect the battery current or System SoC.
System SoC
Bidirectional - Legacy Setting used in legacy multi phase (three phase of split phase) Not
used in Powerchain systems.
Direct SoC Input
(Shunt 1 only)
This setting changes the function of the Shunt 1 input to an analogue input that measures
the State of Charge (SoC) from the analogue output of a Battery Management System
(BMS). The
Voltage for 100% SoC
sets the input voltage that generates a 100% SoC
within the SP PRO and has a maximum setting of 100mV. If the BMS output is greater
than 100mV for 100% SoC then a voltage divider will need to be inserted.
When selected, this input overrides the internal SoC calculation.
Summary of Contents for SP PRO 2i Series
Page 1: ...Instruction Manual for SP LINK Configuration and monitoring for SP PRO series 2i ...
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