Emergency Power Off

EPO Overview

The Emergency Power Off (EPO) option is a safety feature that will immediately disconnect all connected equipment from utility power. The UPS will immediately shut down and will not switch to battery power.

The UPS must be manually re-started to re-apply power to connected equipment and to the UPS. Press ON/OFF on the front panel of the unit.

Normally open contacts

1. If the EPO switch or relay contacts are normally open, insert the wires

from the switch or contacts at pins 1 and 2 of the EPO terminal block. Use 16-28 AWG wire.

2. Secure the wires by tightening the screws.

Power will be disconnected to the UPS and attached loads if the contacts are closed.

Normally closed contacts

1. If the EPO switch or relay contacts are normally closed, insert the wires from the switch or contacts at pins 2 and 3 of the EPO terminal block. Use 16-28 AWG wire.

gen0887a

gen0888a

2.Insert a wire jumper between pins 1 and 2. Secure the wires by tightening the three screws at position 1, 2, and 3.

Power will be disconnected to the UPS and attached loads if the contacts are opened.

Note: The power for operating the EPO circuit is sourced from pin 1. This is an isolated 24 V which can source only a few milliamps.

If the normally closed (NC) EPO configuration is used, the EPO switch or relay should be rated for "dry" circuit applications, the rating should be for low voltage and low current applications. This normally implies the contacts are gold-plated.

Adhere to all national and local electrical codes when wiring the EPO. Wiring must be performed by a qualified electrician.

The EPO interface is a Safety Extra Low Voltage (SELV) circuit. Connect the EPO interface only to other SELV circuits. The EPO interface monitors circuits that have no determined voltage potential. SELV circuits are controlled by a switch or relay properly isolated from utility power. To avoid damage to the UPS, do not connect the EPO interface to any circuit other than a SELV circuit.

Use one of the following cable types to connect the UPS to the EPO switch.

•CL2: Class 2 cable for general use.

•CL2P: Plenum cable for use in ducts, plenums, and other spaces used for environmental air.

•CL2R: Riser cable for use in a vertical run in a floor-to-floor shaft.

•CLEX: Limited use cable for use in dwellings and for use in raceways.

•Installation in Canada: Use only CSA certified, type ELC, (extra-low voltage control cable).

•Installation in countries other than Canada and the USA: Use standard low-voltage cable in accordance with national and local regulations.

Smart-UPS 750/1000/1500/2200/3000 VA 120/230 Vac Tower

11

Page 13 Page 15
Page 14
Image 14
APC 1500, 2200, 3000 operation manual Emergency Power Off, EPO Overview, Normally open contacts, Normally closed contacts
Page 13 Page 15

3000, 2200, 1500 specifications

The APC 3000 and 4000 series are advanced uninterruptible power supply (UPS) systems designed to provide reliable and efficient power protection for a variety of applications. These systems play a crucial role in safeguarding sensitive electronic equipment from power disturbances, including surges, sags, and complete power outages.

Both the APC 3000 and 4000 models come equipped with a robust set of features engineered to improve performance and optimize energy efficiency. One notable characteristic is their sine wave output, which ensures smooth and dependable power delivery, essential for maintaining the proper functionality of connected devices.

Key technologies integrated into these models include advanced battery management systems that extend the life of the batteries and enhance overall performance. The UPS units utilize high-frequency technology, which minimizes the size and weight of the system while maximizing output power. This enables both the APC 3000 and 4000 to fit seamlessly into various environments, from data centers to small offices.

In addition to their compact design, the APC 3000 and 4000 series feature easy-to-read LCD displays providing real-time information on critical parameters such as battery status, load level, and remaining runtime. This feature allows users to monitor performance and make informed decisions about power management effortlessly.

Another vital aspect of the APC 3000 and 4000 series is their expansion capabilities. Both models offer additional battery packs, allowing users to increase runtime as needed. These UPS systems also support hot-swappable batteries, making maintenance quick and efficient, minimizing downtime during service and repairs.

Furthermore, APC’s PowerChute software is compatible with the 3000 and 4000 series, allowing for easy management of power settings and the ability to configure user-defined power settings. This software also enables users to receive alerts for system status issues and performs scheduled shutdowns, ensuring data integrity during power failures.

Overall, the APC 3000 and 4000 series offer a combination of performance, reliability, and user-friendliness. These UPS systems are ideal choices for protecting critical electronic equipment and ensuring uninterrupted operations in various environments. Users looking for a dependable power solution will find that these models exceed expectations with their advanced features and robust technologies.
Top Page Image Contents