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SmartLogger3000 User Manual

This document describes the SmartLogger3000 and SmartModule1000A01 in terms of installation, electrical connections, system operation, maintenance, and troubleshooting. BOM number: 02312SCU, 02312SCU-001, 02312SCU-002, 02312SCU-003, 02312SCU-004, 02312SCU-005, 02312SCU-006, 02312SCU-007, 02312SCU-008, 02312SCU-009, 02312SCU-010, 02312SGF, 02312SGG, 02312SGK and 02312SGJ.

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Setting Export Limitation Parameters

Setting Export Limitation Parameters

Context

When the PV plant generates power for self-consumption, countercurrent may feed into the power grid if the loads cannot consume all the power. In this case, you can set the export limitation parameters over the WebUI to prevent countercurrent.

  • Scenario without a circuit breaker: The countercurrent feeding into the power grid can be eliminated by sending a command from the SmartLogger to lower the solar inverter output power.
Figure 6-45 Network diagram (without a circuit breaker)
  • Scenario with a circuit breaker: If the countercurrent feeding into the power grid cannot be eliminated by sending a command from the SmartLogger to lower the solar inverter output power, and Maximum protection time is exceeded, the SmartLogger drives the relay to switch off the circuit breaker by controlling the DO port to prevent countercurrent. When the DI port detects that the circuit breaker is switched off, the DO port of the SmartLogger and the relay will be switched off, and the SmartLogger will restore to the initial state.

Connect the DO ports in series to the 12 V power supply loop of the relay coils. You are advised to use the 12 V power output port on the SmartLogger to power the relay coils. You can also prepare a 12 V power supply.

Figure 6-46 Network diagram (with a circuit breaker)

In the scenario with a circuit breaker, place the power supply of the SmartLogger before the circuit breaker to avoid the SmartLogger power-off after the DO switches off the circuit breaker.

Procedure

  1. Set parameters as prompted. For details, click Help on the page.

    Click Previous and Next as required.

    Figure 6-47 Setting export limitation parameters

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Updated: 2020-01-17

Document ID: EDOC1100108365

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