Brand: ABB
Category: Lighting
Document Type: Installation Guide
Language: EN
Installation Guide for Exit LED edgelit recessed Emergency, Nexus® LX, Nexus RF
Uploaded: April 20, 2026, 8:11 p.m.
Manual Publish Date: 2020-02-01
Warranty Information
Warranty information is provided, and misuse such as frequent discharge/charge cycles may void the battery warranty.
**Testing Precautions:**
- A commissioning discharge test per AS/NZS 2293.2 is required.
- Allow 24 hours for battery to fully charge before testing.
- Test duration: not less than 2 hours for commissioning, not less than 90 minutes for 6-monthly tests.
- Keep records of tests.
**Construction Sites:**
- Avoid continuous switching off of mains power to fittings as it shortens battery life.
- ABB does not recommend this and may void warranty.
- Discharge testing is required every 6 months as per AS/NZS 2293.2.
**Troubleshooting Guide:**
- Use the provided table to identify and fix common faults.
- Contact ABB customer service if the issue persists.
**Installation:**
- Mains power must not be energized until installation is complete.
- Use the cut-out template to mark and cut the ceiling.
- Secure the base assembly using cam lock screws.
- Connect the mains power cord and Nexus data cable (if applicable).
- Connect the diffuser wire loom plug to the mother board.
- Install pictograph inserts.
- Energize the circuit supplying mains power.
- Check the LED indicators and perform a manual test.
- For Nexus fittings, commission into the Nexus network.
**Removal:**
- Turn off mains power.
- Remove face plate, diffuser assembly, and wire loom plug.
- Disconnect the battery pack plug.
- Loosen cam lock screws to remove the base assembly.
- Allow time for battery to recharge after reconnection.
Troubleshooting and error codes
| No. | Fault | Possible causes |
|---|---|---|
| 1 | LED lamp and indicator LED not lit | AC supply not connected; or AC supply turned off; or Test switch damaged |
| 2 | LED lamp not lit but red indicator is lit | LED lamp damaged; or LED lamp plug incorrectly inserted in the mother board |
| 3 | LED lamp not lit but indicator LED is flashing green | LED lamp damaged; or LED lamp plug incorrectly inserted in the mother board |
| 4 | LED lamp is lit but red indicator LED not lit | LED damaged; or Check battery connection |
| 5 | The LED lamp does not switch to emergency mode when the test button is pressed | Test switch damaged |
| 6 | Indicator LED is constant green | Test switch damaged; or Self check fail - return to factory |
| 7 | Indicator LED not red after commissioning | Check battery connection and battery plug polarity |
| 8 | The LED lamp works momentarily on emergency when the test button is pressed or tested by command from the Nexus system | Battery not yet charged (allow up to 24 hours) |