Voltage Presence Indicators

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.

L1, L2, and L3 LEDs on the Wireless Panel Server front face provide voltage presence indication. For information about the location and description of the voltage presence indicator LEDs, see hardware presentation.

Wiring Harness Connection

DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH Always connect the Wireless Panel Server terminal block to incoming cables or busbars by using the wiring harness SMT10016 provided with the Wireless Panel Server . If using own cables, make sure appropriate short-circuit protection is added. Failure to follow these instructions will result in death or serious injury.

For each phase, the voltage presence indicator LED is on if voltage is present on phase.

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.

NOTE: 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.

Troubleshooting Voltage Presence Indicator LED Issues

Problem	Diagnostics	Action
None of the voltage presence indicator LEDs are lit.	Source power is not applied or is not stable.	Apply power or check power source.
Only one voltage presence indicator LED is lit.	Check your installation: single phase or 3-phase.	In a single-phase, the installation is correct. No action required. In a 3-phase installation, correct cable connection of both other phases.
During commissioning, before connection to EcoStruxure Facility Expert App, one of the voltage presence indicator LEDs is not lit.	The phase is lost.	Check cable connection on phase.
	The phase is not correctly connected.	Check cable connection on phase.