Maintenance - Delta SVG300A43A-11 Quick Star

5 Maintenance and Service
5-1 Troubleshooting
The following table shows errors that may appear on the Active Power Filter (APF). Through the display of the power
quality management system, a beeping sound can be set as an external warning. Before the "warning/error dialogue
boxes" listed in the following table are cleared, they will remain on the screen. The error messages will be recorded
in the power quality management system, users can look them up in the "Shut-down History" (refer to 4-3-5 System
Data for more details).After the warning screen is cleared, it will not be recorded in the "Shut-down History".
Boot mode: Manual
If a warning/error dialogue box appears, users have to manually remove the dialogue box and press the "Disable
warnings" button to complete the removal action.
Boot mode: Auto
The Active Power Filter automatically restarts 6 seconds after the user presses the disable warnings button. If the
warning appears in 3 consecutive restarts (default value), the system will not restart, and users will have to restart
manually.
The power quality management system can record 200 sets of error messages, and record the time and date of
occurrence.
In the following irregular situations, if there is a need to open the Active Power Filter, please note:
(1) In such cases, please turn off the Active Power Filter's power first.
(2) Before checking fuses to see if they are intact, please make sure the Active Power Filter's power is off, and has
been off for more than 10 minutes. Before making contact, please check with a voltmeter that the bus capacitors
are discharged.
Panel display
R-phase voltage detection error
S-phase voltage detection error
T-phase voltage detection error
Instantaneous
sent through IGBT module
Description
Check whether the power supply voltage is normal
Turn off the power and check whether the input contacts
are loose, tighten up if necessary
Restart the system. If the problem persists, send for repair
Check whether the power supply voltage is normal
Turn off the power and check whether the input contacts
are tightened. Tighten again if necessary
Restart the system. If the problem persists, send for repair
Check whether the power supply voltage is normal
Turn off the power and check whether the input contacts
are tightened. Tighten again if necessary
Restart the system. If the problem persists, send for repair
large current Check whether the power supply voltage is normal
Restart the system. If the problem persists, send for repair
5-1
Maintenance and Service
Solution