Medium Voltage Application Guide
Medium Voltage Application Guide
Medium Voltage Application Guide
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LOGIC CONTROL CONFIGURATION<br />
3.6 Metering and Performance Monitoring<br />
3.7 Remote Communications<br />
The equipment shall include comprehensive metering and monitoring functions.<br />
The equipment shall provide real-time feedback of operating conditions, including:<br />
• average current<br />
• L1, L2 & L3 currents<br />
• average voltage<br />
• L1, L2 & L3 voltages<br />
• mains frequency<br />
• motor real power consumption (kVA)<br />
• motor active power consumption (kW)<br />
• motor power factor<br />
• elapsed running time<br />
• time to run before programmed stop (when running)<br />
The equipment shall provide feedback of historical operating information, including:<br />
• lifetime hours run<br />
• lifetime start count<br />
• resettable hours run<br />
• resettable start count<br />
• resettable kWh count<br />
The control interface shall allow the user to select which parameters to display on<br />
the LCD.<br />
The equipment shall record full details of its state at the time of every protection<br />
activation. The recorded details shall include, at minimum:<br />
• time and date stamp.<br />
• protection type<br />
• motor operating status<br />
• mains frequency<br />
• line current<br />
• line voltage<br />
The equipment's protection log shall store no fewer than eight trips.<br />
The equipment shall record all changes to its configuration.<br />
The equipment's change log shall store no fewer than 99 events.<br />
The starter must have the ability to download parameters and monitor via a<br />
computer during commissioning.<br />
Optional Remote communications be available for the following interfaces to both<br />
monitor and control the soft starter.<br />
• Modbus RTU<br />
• Profibus<br />
• DeviceNet<br />
8
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