Operating instructions

Diagnosis / faults and alarms
10.2 Diagnosis
Drive converter cabinet units
414 Operating Instructions, 10/2008, A5E00288214A
10.2 Diagnosis
Description
This section describes procedures for identifying the causes of problems and the measures
you need to take to rectify them.
Note
If errors or malfunctions occur in the device, you must carefully check the possible causes
and take the necessary steps to rectify them. If you cannot identify the cause of the problem
or you discover that components are defective, your regional office or sales office should
contact Siemens Service and describe the problem in more detail.
10.2.1 Diagnostics via LEDs
CU320 Control Unit (-A10)
Table 10- 1 Description of the LEDs on the CU320
LED Color State Description
--- OFF The electronics power supply is missing or lies outside permissible
tolerance range.
Steady light The component is ready for operation and cyclic DRIVE-CLiQ
communication is taking place.
The Control Unit is awaiting first commissioning.
Green
2 Hz flashing light Writing to CompactFlash card.
Steady light At least one fault is present in this component. Red
0.5 Hz flashing
light
CompactFlash card has not been inserted.
Boot error (e.g., firmware cannot be loaded to the RAM).
Green / red 0.5 Hz
flashing light
Control Unit 320 is ready for operation.
However, there are no software licenses.
Steady light System is booting and DRIVE-CLiQ communication is being
established.
0.5 Hz flashing
light
DRIVE-CLiQ component firmware update in progress.
RDY
(ready)
Orange
2 Hz flashing light Component firmware update complete. Waiting for POWER ON of
relevant components.