Page 16 - Arc Guard System - TVOC-2

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

3.2.9 Signal Relays 3.2.12 Extension for supervised detectors

The Internal Relay Fault (IRF), K1 indicates the system The extension module E6-S is used to expand the system
status. At normal condition the K1 is energized and from the original 10 sensors with additional supervised
signals that no diagnostics error is detected on the Arc detectors. One extension can hold up to 10 detectors. The
Guard System. Arc Monitor can hold up to 2 extension modules making it
possible to mount up to 20 supervised detectors. The E6-S
The two trip signal relays, K2 and K3 are used to extension module can only be installed with detectors
signal when a trip occurs. The relays can be used to enabled for supervision DPxx-S up to 30 m.
activate an alarm or to pass the trip information to a
supervised system.
03
The signal relays are called K2 and K3. INFORMATION

• K2 de-energized, no arc detected An additional variant of extension unit is
available called E6-S. This unit is adapted to
• K3 de-energized, no arc detected detectors of type DPxx-S. The unit sends a
heartbeat signal through the cable to monitor
the integrity of the detector cable. A warning is
If the system is configured for manual reset, K2 and K3 are
energized until the user is resets them on the HMI in the displayed on the HMI if there is any damaged or
trip notification window. If the system is configured for disconnected detector cables.
auto reset, K2 and K3 are de-energized 250 ms after the
arc is extinguished.

3.2.10 Detectors

The detectors are used to detect the intensive light from
an arc and transfer it to the Arc Guard System.
The detectors are using fiber-optics and are guaranteed
that they will react on the correct light intensity.
For this reason, the cables are not to be modified
in any way.

3.2.11 Extension E1 and E3

The extension module is used to expand the system from
the original 10 detectors with additional detectors.
One extension can hold up to 10 detectors. The Arc
Monitor can hold up to 2 extensions making it possible to
mount up to 30 detectors. The standard extension is used
for detector up to 30 meter length.
INFORMATION
A separate version of the extension module is
available which is intended only for 60 meter
detectors.

INFORMATION
Do not connect single fiber TvOC-2-DP*
detectors to E6-S module.