Epo, Emergency Power Off | Emerson 480V guide

UPS Status Messages

Table 36 UPS status messages

	Event Message	Description / Suggested Action (if any)

		Rectifier, inverter and battery converter were shut down because DC bus voltage is too high.
	DC Bus Overvoltage	Check whether there is a fault in rectifier side. If not, check whether overload occurs.
	DC Bus Overvoltage	Restart the inverter after resetting the fault. If fault does not clear, contact Liebert Global

		Services at 800-543-2378 for assistance.

		The parallel cables are not connected correctly in a parallel system.
		Reset the fault by pressing the Fault Clear button, then restart the inverter by pressing the
	Parallel Connect Fault	Inverter On button.
		If the UPS does not resume normal operation, contact Liebert Global Services at
		800-543-2378 for assistance.
		Bypass current is over limit above 135% rating. The UPS just alarms and does nothing. Refer to
	Bypass Overcurrent	your installation documentation or contact Liebert Global Services at 800-543-2378 for
		assistance.
	LBS Active	The LBS setting is active. The UPS is acting as an LBS master or slave in a dual bus
	LBS Active	configuration.
		configuration.
	Battery ground fault	Battery ground fault from dry contact signal. Contact Liebert Global Services at 800-543-2378
	Battery ground fault	for assistance.
		for assistance.
	Inverter turned On	Manual Turn On via front panel
	manually
	Inverter turned Off	Manual Turn Off via front panel
	manually
	EPO	Emergency Power Off

	Transfer Confirm	Interrupted Transfer Confirm

	Transfer Cancel	Interrupted Transfer is cancel

	Unit Off Confirm	Unit Turned Off Confirm

	System Off Confirm	Parallel System Turned Off Confirm

	Fault Reset	Fault Reset

	Alarm Silence	Alarm Silence

	Turn On Fail	Turn On Fail

	Alarm Reset	Audible Alarm Reset

	Bypass Mode	UPS in Bypass Mode

	Normal Mode	UPS in Normal Mode

	Battery Mode	UPS in Battery Mode

	Check UPS output	UPS Shutdown, output power-down

	Output Disabled	UPS Output Disabled

	Generator Connected	Generator is connected and a signal is sent to UPS

	Input CB Open	Input CB is Open

	Input CB Closed	Input CB is Closed

	Bypass CB Open	Bypass CB is Open

	Bypass CB Closed	Bypass CB is Closed

	Output CB Open	Output CB is Open

	Output CB Closed	Output CB is Closed

	Maint. CB Open	Maintenance CB is Open

	Maint. CB Closed	Maintenance CB is Closed

	Battery Reverse	Connect the battery again and check the wiring of batteries

	No Battery	Check the battery and the wiring of batteries

	Auto start	After the UPS was shut down at end of discharge, inverter auto starts when utility is restored

	BCB closed	BCB closed from dry contact signal

	BCB open	BCB open from dry contact signal

480V specifications

The Emerson 480V power systems play a critical role in modern industrial applications, providing reliable and efficient power distribution. These systems are designed for facilities that require robust performance and operational efficiency while adhering to safety regulations. With voltage ratings at 480V, they cater primarily to industries such as manufacturing, data centers, and commercial buildings.

One of the main features of the Emerson 480V systems is their scalability. These systems can be easily adapted and expanded as operational demands grow, thereby reducing initial investment costs and providing a flexible solution for evolving business needs. This ability to scale is crucial in a fast-paced environment where demands can change rapidly.

The Emerson 480V systems also incorporate advanced technologies for improved performance and safety. One key technology is the use of smart grid solutions. This enables real-time monitoring, diagnostics, and control, allowing facility managers to optimize energy consumption and reduce operational costs. Furthermore, these systems often include integrated protection devices that enhance safety measures by minimizing the risk of electrical faults, overloads, or short circuits.

Energy efficiency is another characteristic that distinguishes Emerson 480V systems from traditional alternatives. With advanced power management features, these systems effectively reduce energy waste and lower electricity bills. Emerson’s commitment to sustainability is evident in its designs, which aim to minimize environmental impact through energy-efficient technologies.

The build quality of Emerson 480V systems is also noteworthy. They are designed to withstand harsh industrial environments and are constructed with high-grade materials that promote longevity and reliability. The modular design allows for easy maintenance and repair, which further extends the lifespan of the system.

Additionally, Emerson 480V systems are equipped with user-friendly interfaces that facilitate ease of operation. This ensures that operators can efficiently manage and control power distribution without extensive training. The combination of performance, scalability, safety features, and user-centric design makes Emerson 480V systems an ideal choice for businesses looking to enhance their electrical infrastructure.

In summary, Emerson 480V power systems are a leading solution for industrial power distribution, characterized by their scalability, smart technology integration, energy efficiency, robust build quality, and user-friendly operation. These attributes make them a valuable investment for any organization aiming to improve its electrical management and operational performance.

Table 36 UPS status messages

Event Message

Services at 800-543-2378 for assistance.

EPO

Emergency Power Off

480V specifications