Siemens SINAMICS S120 Commissioning Manual page 248

Diagnostics
3.1 Diagnostics via LEDs
LED Color
COM
-
Green
Red
MOD -
OUT > 5 V -
Orange
Make sure that the encoder connected is designed for a 24 V supply. Connecting a 5 V encoder to a 24 V supply can
1)
result in destruction of the encoder electronics.
Control Unit 310-2 PN while powering up
Table 3- 12 Load software
RDY COM
Orange Orange
Red Red
Red Red
Red Red
Flashing light 2
Hz
Red Red
Flashing light 2 Flashing light 2
Hz Hz
246
State Description / cause
Off Cyclic communication is not (yet) running.
Note:
The PROFIdrive is ready for communication when
the Control Unit is ready for operation (see LED:
RDY).
Continuous light Cyclic communication is taking place.
Flashing light Cyclic communication is not fully established yet.
0.5 Hz Possible causes:
- The controller is not transmitting any setpoints.
- In isochronous mode, the controller is not sending
a GC (Global Control) or is sending a defective
GC.
Flashing light The PROFIBUS master is sending a faulty
0.5 Hz parameter assignment or the configuration file is
corrupted.
Flashing light Cyclic bus communication has been interrupted or
2 Hz could not be established.
Off -
Off -
Continuous light The voltage of the electronics power supply for the
measuring system is 24 V.
LED
OUT>5V
Orange
Off
Off
Off
Off
1)
State
MOD
Orange POWER ON
Off Hardware reset After pressing the RESET button
Off BIOS loaded
Off BIOS error
Off File error
Commissioning Manual, (IH1), 01/2013, 6SL3097-4AF00-0BP3
Remedy
-
-
-
Modify the
configuration between
master/controller and
control unit.
Rectify the fault in bus
communication.
-
-
Comment
All LEDs light up for approx. 1 s
the LEDs light up for approx. 1 s
-
Error occurred while loading the
BIOS
Memory card not inserted or faulty
Software on memory card not
present or corrupted
Commissioning Manual