ABB ACS5000 - Action after the Arc Guard System Has Been Triggered; Arc Detection with the Arc Guard System

3BHS799208 E01 REV E ACS5000 WATER-COOLED USER MANUAL 137/186
08 OPERATION
8.10.2 Arc detection with the Arc Guard System™
The Arc Guard System™ detects fast arc faults in the terminal sections of
the drive. When the Arc Guard System detects an arc fault the drive
performs protection firing and immediately opens the main circuit
breaker. The Arc Guard monitor and HMI panel are located in the
COU (Fig. 3-12).
Figure 8-3 Arc Guard™ system with HMI panel
The Arc Guard System™ consists of the following:
• Arc Guard unit TVOC-2 with HMI panel
• Optical fiber detector
8.10.3 Action after the Arc Guard System™ has been triggered
1. De-energize and ground the drive according to “10.6.2 De-energizing
the drive” on page 172.
2. Search for the location where the arc has been detected.
3. Check the Arc Guard HMI panel messages and use the
circuit diagrams.
Figure 8-4 HMI panel
4. Open the power units and localize the defect.
5. Repair the defect or contact support line if needed.
6. Reset the fault on Arc Guard HMI panel.
7. Acknowledge the firing through with parameter 16.26 on the CDP
control panel (only when fault was understood and corrected).
8. Restart the drive.