Diagnostics
7.2 LEDs on the CU320-2 DP Control Unit
Cabinet Modules NEMA
Manual, 04/2014, A5E03586450A
331
Reaction of the LEDs after power-up
Table 7- 3 Control Unit CU320-2 DP – Description of the LEDs after power-up
RDY (READY) - OFF Electronics power supply is missing or outside
the permissible tolerance range.
Check power supply
Green Continuous
The component is ready for operation and cyclic
DRIVE-CLiQ communication is taking place.
–
Flashing
Commissioning / reset –
Flashing
Writing to the memory card –
Red Flashing
General errors Check parameter assign-
ment / configuration data
Red/
Flashing
Control unit is ready for operation.
However, there are no software licenses.
Retrofit licenses
Orange Flashing
Updating the firmware of the DRIVE-CLiQ com-
ponents that are connected
–
Flashing
2 Hz
DRIVE-CLiQ component firmware update has
been completed. Wait for POWER ON of the
Carry out POWER ON for
the components in question
Green/
Orange
or
Red/
Orange
Flashing
1 Hz
Detection of the component via LED is activated
(p0124[0]).
:
The two options depend on the LED status when
component detection is activated via p0124[0] =
–
COM
PROFIdrive
cyclic opera-
tion
– Off Cyclic communication has not (yet) taken place.
The PROFIdrive is ready to communicate when
the Control Unit is ready to operate (see LED
–
Green Continuous
Cyclic communication is taking place. –
Flashing
0.5 Hz
Full cyclic communication has not yet taken
place.
Possible causes:
• The controller is not transferring any set-
points.
• During isochronous operation, no global con-
trol (GC) or a faulty global control (GC) is
transferred by the controller.
–
Red Flashing
PROFIBUS master is sending incorrect parame-
ter assignment / configuration data
Adapt configuration between
master / controller and CU
Flashing
Cyclic bus communication has been interrupted
or could not be established
Eliminate the fault
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