Siemens Sinamics S110 Function Manual page 92

Diagnostics
5.1 Diagnostics via LEDs
LED Color
Red
Orange
OUT>5 V -
Orange
MOD -
This option is only valid if an optional memory card is inserted.
1)
90
Status
Flashing Cyclic communication is not yet running fully.
0.5 Hz Possible reasons:
The controller is not transferring any setpoints.

During isochronous operation, no global control

(GC) or a faulty global control (GC) is transferred
by the controller.
Continuous Cyclic communication has been interrupted.
Flashing Firmware CRC error.
2 Hz
off The voltage of the electronics power supply for the
measuring system is 5 V.
Continuous The voltage of the electronics power supply for the
measuring system is 24 V.
Important:
Make sure that the connected encoder can be
operated with a 24 V power supply. If an encoder
that is designed for a 5 V supply is operated with a
24 V supply, this can destroy the encoder
electronics.
off Reserved
Description, cause
Function Manual, 01/2011, 6SL3097-4AB10-0BP3
Remedy
-
Remedy fault
Make sure that the
memory card has
been inserted
properly.
1)
Replace the memory
card.
1)
Replace Control Unit.
Carry-out a POWER
ON.
-
-
-
Function Manual