TCI HGA Manual - Manual (Page 98)

98
Troubleshooting
HarmonicGuard Active Filter Fault
If the display indicates a fault has occurred proceed to the fault screen by choosing the “Fault” menu screen
button. To see if this is a recurring fault hit the “History” button from inside the “Fault” screen. To clear a
fault press the “Reset” button from inside the “Fault” Screen or the “Stop” button from any screen.
Warning
Only qualified electricians should carry out all electrical installation & maintenance work on the HGA.
Disconnect all sources of power to the drive and HGA before working on the equipment. Do not
attempt any work on a powered HGA.
This HGA unit contains high voltages and capacitors. Wait at least five minutes after disconnecting
power from the filter before attempting to service the conditioner. Check for zero voltage between all
terminals on the capacitors. Also, check for zero voltage between all phases of the input and output
lines. All maintenance and troubleshooting must be done by a qualified electrician. Failure to follow
standard safety procedures may result in death or serious injury. Unless an external disconnect
means has been provided everything ahead of the filter circuit breaker, including the reactors,
will still be energized.
Interface Module Problem
The Interface Module is comprised of four major components; the HMI display, the Interface PCB, the
cabling and an optional Gateway. The Interface PCB contains diagnostic LEDs. The locations of the LEDs
are shown in Figure 8.3, and their functions are listed in Table 8.1.
Figure 8.3 – Communications Board LED placement
Table 8.1 – LED Functions
LED LED Color Description (LED Color)
D1 Green AUX 1
D3 Green AUX 2
D4 Green Running Relay Energized
D5 Green Power-On Relay Energized
D6 Green Fault Relay Energized
D7 Green Current Limit Relay Energized
D12 Green RS485 Communication is active from converter
D13 Orange RS485 Communication is active to converter
D14 Green Input Run Command Present