Siemens SINAMICS - Page 43

LED Status Comment
RDY COM OPT
Red flash‐
ing light 2
Hz
Red flash‐
ing light 2
Hz
Off File error
● Memory card not inserted or defective
● Software on memory card not present or
corrupted
Red Orange
Flashing
light
Off FW loading RDY LED lights up red, COM LED flashes
orange without fixed frequency
Red Off Off FW loaded –
Off Red Off FW checked
(no CRC error)
–
Red flash‐
ing light 0.5
Hz
Red flash‐
ing light 0.5
Hz
Off FW checked
(CRC error)
● CRC invalid
Table 3-27 Firmware
LED Status Comment
RDY COM OPT
Orange Off Off Initializing –
Alternating Running See the table below
Control Units
3.2 Control Unit CU320-2 DP (PROFIBUS)
Supplementary component descriptions
Manual, 06/2019 41