Alarms, faults and system messages
10.3 Status LED overview
Explanation of status LEDs
An explanation of the various states indicated by the LEDs are given in the tables below.
Table 10- 1 Description of general status LEDS
Ready for operation (no active fault)
GREEN - flashing slowly - Commissioning or reset of factory settings
Firmware update in progress
Firmware updated is complete - power ON reset required
Fault occurred during firmware update
Incorrect settings, incompatible firmware or incorrect memory card
Table 10- 2 Description of PROFIBUS communications LED
Cyclic data exchange (or PROFIBUS not in use - p2030 = 0)
Bus fault - configuration fault
RED - flashing quickly Bus fault:
- no data exchange
- baud rate search - cannot detect the correct baud rate
- no connection - the connection between the Inverter and PLC has been lost
Table 10- 3 Description of SAFE LED
One or more safety functions are enabled - but not active
One or more safety functions are active - no safety function faults have occurred.
YELLOW - flashing quickly
The Inverter has detected a safety function fault and initiated a stop response.
Table 10- 4 Description of PROFINET communications LEDS
Link active and data transfer active if flashing
Link inactive with no data transfer
Table 10- 5 Description of Digital Input and Output LEDs
Input/Output connected and working
Input/Output not connected or has stopped working
Converter with control units CU240D-2
Operating Instructions, 04/2015, FW V4.7.3, A5E34262100B AB
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