Voltage Loss Function - Wireless Panel Server User Guide

Presentation

WARNING
HAZARD OF NON-DETECTION OF VOLTAGE The Wireless Panel Server only gives an indication of voltage, it does not replace any appropriate rated voltages sensing devices to confirm that power is off on one or all phases. Before intervention on the Wireless Panel Server make sure that you follow safety regulations. Always use a properly rated voltage sensing device to confirm that power is off. Failure to follow these instructions can result in death, serious injury, or equipment damage.

WARNING

HAZARD OF NON-DETECTION OF VOLTAGE

The Wireless Panel Server only gives an indication of voltage, it does not replace any appropriate rated voltages sensing devices to confirm that power is off on one or all phases.
Before intervention on the Wireless Panel Server make sure that you follow safety regulations.
Always use a properly rated voltage sensing device to confirm that power is off.

Failure to follow these instructions can result in death, serious injury, or equipment damage.

The voltage loss alert function provides local and remote visibility if an electrical outage or abnormal voltage phase conditions have occurred. It makes voltage status inspection faster and diagnosis more efficient, helping to prevent equipment damage, and helping the operation team to respond without delay.

Remote Voltage Loss Alert

When voltage loss is detected by a Wireless Panel Server communicating through LoRa and that service for EcoStruxure Facility Expert App is activated, a notification is sent on mobile devices (smartphone or tablet) for the following alerts:

Phase loss alert.
Power outage alert of the switchboard if the voltage presence indicator is cabled from downstream the main incomer.
Power outage alert upstream of the switchboard if the voltage presence indicator is cabled upstream from the main incomer (with an additional protection).

NOTE: If the Wireless Panel Server is wired with 3 phases without neutral:

If one phase loss occurs, the voltage presence indicator LED is on with no alert sent. It is due to a probability of residual voltage coming back on the phase from the loads.
If two or three phase loss occurs, the voltage presence indicator LEDs switch off and a voltage loss alert is triggered.

Voltage Presence Indicator in Single-Phase Network

In a single-phase network, the voltage presence indicator LED operates as follows:

If...	Then...
Phase is disconnected	The voltage presence indicator LED is off and the Wireless Panel Server communication through LoRa is operational.
Neutral is disconnected	The voltage presence indicator LED is off and the Wireless Panel Server communication through LoRa is not operational.

Setting the Parameters

Alerts provided by the voltage loss function are set with EcoStruxure Facility Expert App and require LoRa communication.