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Excel 800 Troubleshooting
31 EN1B-0410GE51 R0908A
Troubleshooting
Testing Wiring Connections
The push-in terminals feature small holes (1 mm in diameter)
which can be used to measure the signals.
► Insert a probe (1) as shown on the right.
Fig. 49. Testing wiring connections
Troubleshooting on the XCL8010AU Controller
The following LEDs of the XCL8010AU Controller can be used for troubleshooting purposes:
• Power LED (green)
• Alarm LED (red)
• L
ONWORKS service LED
• C-Bus Tx and Rx LEDs
• HMI Tx and Rx LEDs
Power LED (green)
Table 37. XCL8010AU power LED
case power LED meaning remedy
1 ON
Normal operation No action necessary
2 Flashing
One or more of the internal voltage supplies
are outside of the permissible ranges. The
controller stops operation.
► Check power
► Check wiring
► If problem persists, replace hardware
3 Goes out briefly
• The operator has activated the reset button
• The controller is performing a warm start
No action necessary