Page 46 - Arc Guard System - TVOC-2

46 ABB ARC GUARD SYSTEM™ – TVOC-2 INSTALLATION AND MAINTENANCE GUIDE

6.1 Introduction INFORMATION
In order to prevent a shut-down of the whole
The Arc Guard System™ requires maintenance once every switchgear during the maintenance process,
year. The yearly maintenance includes checking detectors, replace the breakers which are connected to
The Arc Monitor and the light from CSU-2 (option).
the Arc Monitor with test breakers. This can be
6.2 Maintenance done by replacing the terminal to K4, K5, K6
with the test breakers.

WARNING
6.2.1 Sensor supervision (E6-S Remember to replace the test breakers with
extension modules) terminal breaker K4, K5, K6 after testing!

Check that the sensor supervision is working for each of The maintenance procedure to check the detectors and
the 10 detectors with the following steps: Arc Monitor is the same as for a Start-Up of the system for
1. From start window, press menu. the first time.
2. Apply an error by removing the detector, the
dummy plug or the lens. INFORMATION
See: “4.3.2 Check” on page 35.
3. Check the HMI: When the error is applied the
system error popup shall within 30 seconds be
displayed on the HMI showing the bit for sensor To check the light from Current Sensing Unit, CSU-2.
Perform a manual diagnostic via the HMI to check if the
supervision error and by pressing page down the light from CSU-2 is degenerating. This will show as a
correct detector shall be marked with a zero (0) for notification window in HMI with an Error code.
faulty detector.

6.2.2 Arc Monitor and Detectors INFORMATION
How to perform a manual diagnostics,
To check the detectors and the Arc Monitor, simulate an See: “Perform Diagnostics” on page 40.
06
arc by using a camera flash, repeat the following steps:
See: “List of error codes” on page 51.
1. Set the camera flash to approximately 0.5 ms.
2. Place the camera flash at a distance between
1.5–2 meters (60–80 inches) from the detector.

3. Make sure no object is standing in the way.
4. Point the camera flash towards the detector.
5. Press the flash test button.
6. Carry out the following steps to check the
Arc Monitor.
a. Check the HMI display.

b. If the detector reacts correctly and causes a
trip then it should show on the HMI display as a
notification window.
c. The notification window shows, Trip has
occurred, which detector, which trip contact, at
what time and date.

d. The breaker that is connected to the Arc monitor
should trip, depending on the configuration.
e. At the notification window, if manual reset
is configured, press Reset. If auto reset is
configured, press Menu.