Backfeed Kit for Galaxy PW 2nd Gen Installation

Important Safety Instructions

Read these instructions carefully and familiarize yourself with the equipment before attempting installation, operation, service, or maintenance. Pay attention to all safety messages throughout this manual and on the equipment.

▲DANGER: Indicates a hazardous situation which, if not avoided, will result in death or serious injury.

▲WARNING: Indicates a hazardous situation which, if not avoided, could result in death or serious injury or equipment damage.

▲CAUTION: Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury or equipment damage.

NOTICE: Addresses practices not related to physical injury. Failure to follow these instructions can result in equipment damage.

Electrical equipment should only be installed, operated, serviced, and maintained by qualified personnel. Schneider Electric assumes no responsibility for consequences arising from the use of this material.

A qualified person has skills and knowledge related to electrical equipment and has received safety training to recognize and avoid hazards.

Per IEC 62040-1: This equipment, including battery access, must be inspected, installed, and maintained by a skilled person. A skilled person is defined as someone with relevant education and experience to perceive risks and avoid hazards.

Safety Precautions:

• DANGER: HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH. Read all instructions before working on the product.
• Do not install the product until all construction work is completed and the installation room is clean.
• The product must be installed according to Schneider Electric specifications and requirements, including external and internal protections and environmental conditions.
• The UPS system must be installed according to local and national regulations, including IEC 60364, NEC NFPA 70, or Canadian Electrical Code (C22.1, Part 1), as applicable.
• Install the product in a temperature-controlled indoor environment free of conductive contaminants and humidity.
• Install the product on a non-flammable, level, and solid surface that can support its weight.
• Do not install in unusual operating environments such as those with damaging fumes, explosive mixtures, excessive moisture, salt-laden air, or high pollution degrees.
• Do not drill or cut holes for cables near the UPS system or with gland plates installed.
• Do not make mechanical changes to the product not described in the manual.
• NOTICE: RISK OF OVERHEATING. Respect space requirements and do not cover ventilation openings.

Electrical Safety:

• Electrical equipment must be installed, operated, serviced, and maintained only by qualified personnel.
• Apply appropriate Personal Protective Equipment (PPE) and follow safe electrical work practices.
• Ensure disconnection devices for AC and DC are accessible and clearly marked.
• Turn off all power supplying the UPS system before working on or inside the equipment.
• Check for hazardous voltage between all terminals, including the protective earth, before working on the UPS.
• The UPS contains an internal energy source. Hazardous voltage can be present even when disconnected from the mains supply. Ensure units are OFF and mains and batteries are disconnected. Wait five minutes before opening the UPS to allow capacitors to discharge.
• The UPS must be properly earthed/grounded. Due to high leakage current, the grounding conductor must be connected first.

Model List

Applicable Products

Specifications

Torque Specifications

Installation Procedure for Installing the Backfeed Kit on the Unit Input Breaker UIB

1. Select the correct backfeed kit according to Applicable Products, page 10.
2. Install the Backfeed Kit EPWOPT015/EPWOPT016 on the Unit Input Breaker UIB, page 14.
3. Configure the Backfeed Protection Settings for the Unit Input Breaker UIB on the UPS Display, page 28.

Installation Procedure for Installing the Backfeed Kit on the Static Switch Input Breaker SSIB

1. Select the correct backfeed kit according to Applicable Products, page 10.
2. Install the Backfeed Kit EPWOPT015/EPWOPT016 on the Static Switch Input Breaker SSIB, page 21.
3. Configure the Backfeed Protection Settings for the Static Switch Input Breaker SSIB on the UPS Display, page 31.

Install the Backfeed Kit EPWOPT015/EPWOPT016 on the Unit Input Breaker UIB

DANGER: HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH. Turn the UPS system completely OFF before starting this procedure. Wait five minutes before opening the UPS to allow the capacitors to discharge.

Note: EPWOPT015 and EPWOPT016 differ only in size. The installation procedure is the same for both. The following steps use EPWOPT015 as an example.

1. Turn the UPS completely off.
2. Lockout/Tagout the UPS battery breaker and UPS static switch input breaker SSIB in the OFF (open) position.
3. Remove the indicated protection covers from the UPS. (Protection covers vary by UPS model; the illustration uses the Galaxy PW 2nd Gen 10-40 kVA 3:1 220 VDC UPS as an example).
4. Measure for and verify ABSENCE of voltage on each input/bypass/output busbar before continuing.

Illustration: Diagram showing the input, bypass, and output busbars within a UPS unit.

5. On the unit input breaker UIB, push the button to set the unit input breaker UIB from the OFF (open) position to the Trip position.
6. Remove the indicated screws.
7. Open the unit input breaker UIB cover. The backfeed kit will be installed in the marked position.
8. Push the backfeed kit EPWOPT015 into position.
9. Make a notch in the top of the unit input breaker UIB cover for the backfeed shunt trip cables.
10. Close the unit input breaker UIB cover. Route the backfeed shunt trip cables through the top notch.
11. Tighten the indicated screws and torque to 1 Nm.
12. Lockout/Tagout the unit input breaker UIB in the OFF (open) position.
13. Connect the backfeed shunt trip cables to the terminal blocks DO* in the UPS controller section according to the following diagram. Note the DO position that is connected, which will be used in Configure the Backfeed Protection Settings for the Unit Input Breaker UIB on the UPS Display, page 28.

Diagram: Terminal block connections for backfeed shunt trip cables, showing DO1-DO5, NTC, BB, TRIP, D11-D14, and OC2. Includes a 220VAC 50/60 Hz power source and capacitors C1, C2.

Note: The operation voltage for the backfeed shunt trip cables is 220 VAC 50 Hz or 60 Hz.

14. Route the backfeed shunt trip cables along the post cables reliefs and into the bottom brush plates to the output busbars (L, N). (The illustration uses the Galaxy PW 2nd Gen 10-40 kVA 3:1 220 VDC UPS as an example).
15. Connect the backfeed shunt trip cables to the output busbars (L, N) according to the UPS installation manual.
16. Continue to the static switch input breaker SSIB installation, if relevant (Install the Backfeed Kit EPWOPT015/EPWOPT016 on the Static Switch Input Breaker SSIB, page 21) or reinstall the protection covers.

Install the Backfeed Kit EPWOPT015/EPWOPT016 on the Static Switch Input Breaker SSIB

DANGER: HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH. Turn the UPS system completely OFF before starting this procedure. Wait five minutes before opening the UPS to allow the capacitors to discharge.

Note: EPWOPT015 and EPWOPT016 differ only in size. The installation procedure is the same for both. The following steps use EPWOPT015 as an example.

1. Turn the UPS completely off.
2. Lockout/Tagout the UPS battery breaker and the unit input breaker UIB in the OFF (open) position.
3. Remove the indicated protection covers from the UPS. (Protection covers vary by UPS model; the illustration uses the Galaxy PW 2nd Gen 10-40 kVA 3:1 220 VDC UPS as an example).
4. Measure for and verify ABSENCE of voltage on each input/bypass/output busbar before continuing.

Illustration: Diagram showing the input, bypass, and output busbars within a UPS unit.

5. On the static switch input breaker SSIB, push the button to set the static switch input breaker SSIB from the OFF (open) position to the Trip position.
6. Remove the indicated screws.
7. Open the static switch input breaker SSIB cover. The backfeed kit will be installed in the marked position.
8. Push the backfeed kit EPWOPT015 into position.
9. Make a notch in the top of the static switch input breaker SSIB cover for the backfeed shunt trip cables.
10. Close the static switch input breaker SSIB cover. Route the backfeed shunt trip cables through the top notch.
11. Tighten the indicated screws and torque to 1 Nm.
12. Lockout/Tagout the UPS static switch input breaker SSIB in the OFF (open) position.
13. Connect the backfeed shunt trip cables to the terminal blocks DO* in the UPS controller section according to the following diagram. Note the DO position that is connected, which will be used in Configure the Backfeed Protection Settings for the Static Switch Input Breaker SSIB on the UPS Display, page 31.

Diagram: Terminal block connections for backfeed shunt trip cables, showing DO1-DO5, NTC, BB, TRIP, D11-D14, and OC2. Includes a 220VAC 50/60 Hz power source and capacitors C1, C2.

Note: The operation voltage for the backfeed shunt trip cables is 220 VAC 50 Hz or 60 Hz.

14. Route the backfeed shunt trip cables among the post cables reliefs and into the bottom brush plates to the output busbars (L, N). (The illustration uses the Galaxy PW 2nd Gen 10-40 kVA 3:1 220 VDC UPS as an example).
15. Connect the backfeed shunt trip cables to the output busbars (L, N) according to the UPS installation manual.
16. Reinstall the protection covers.

Configure the Backfeed Protection Settings for the Unit Input Breaker UIB on the UPS Display

1. From the main menu of the UPS display, select Settings > Advanced settings > Dry contact settings > Output dry contact.

Note: The Settings menu requires administrator login to access. The default password is '000000'.

Illustration: UPS display showing navigation to 'Output dry contact'.

2. Select the output dry contact for configuration that you connected the backfeed shunt trip cables to during installation.

Diagram: Terminal block connections for backfeed shunt trip cables, showing DO1-DO5, NTC, BB, TRIP, D11-D14, and OC2. Includes a 220VAC 50/60 Hz power source and capacitors C1, C2. Followed by a UPS display showing 'Output dry contact' options: Out 01 to Out 05.

3. Set the Status of the output dry contact to Closed and the Function to Backfeed on input.
4. Tap Confirm to save your settings.

Illustration: UPS display showing 'Setting successful' and a 'Confirm' button.

Configure the Backfeed Protection Settings for the Static Switch Input Breaker SSIB on the UPS Display

1. Start up the UPS - follow the instructions in the UPS operation manual.
2. From the main menu of the UPS display, select Settings > Advanced settings > Dry contact settings > Output dry contact.

Note: The Settings menu requires administrator login to access. The default password is '000000'.

Illustration: UPS display showing navigation to 'Output dry contact'.

3. Select the output dry contact for configuration that you connected the backfeed shunt trip cables to during installation.

Diagram: Terminal block connections for backfeed shunt trip cables, showing DO1-DO5, NTC, BB, TRIP, D11-D14, and OC2. Includes a 220VAC 50/60 Hz power source and capacitors C1, C2. Followed by a UPS display showing 'Output dry contact' options: Out 01 to Out 05.

4. Set the Status of the output dry contact to Closed and the Function to Backfeed on bypass.
5. Tap Confirm to save your settings.

Illustration: UPS display showing 'Setting successful' and a 'Confirm' button.