Siemens SINAMICS G220 - NAMUR Message Word; Control and Status Word Encoder

14.4.6.16 NAMUR message word
Overview
The NAMUR message word signals the converter status to the higher-level control system.
Description of function
NAMUR message word (MELD_NAMUR)
Converter → Control
Bit Meaning
00 1 = Converter control unit fault
01 1 = Line supply fault: Phase failure or inadmissible voltage
02 1 = DC link overvoltage
03 1 = Power unit fault, e.g. overcurrent or overtemperature
04 1 = Converter overtemperature
05 1 = Ground fault/inter-phase short-circuit in the motor cable or motor
06 1 = Motor overload
07 1 = Communication error with the higher-level control system
08 1 = Error in a safety monitoring channel
09 Reserved
10 1 = Converter-internal communication error
11 1 = Line system fault
12 …
14
Reserved
15 1 = Other fault
Parameters
The following list contains the parameters of the "Control and status word 3" function.
Number Name Unit
r3113.0...15 NAMUR message bit bar 
14.4.6.17 Control and status word encoder
Overview
The encoder control word (G1_STW and G2_STW) and the encoder status word (G1_ZSW and
G2_ZSW) allow the higher-level control to directly access the functions and status of the encoder.
Direct access to the encoder is necessary, if the higher-level control performs the closed-loop
position control for the drive.
Functions
14.4PROFINET communication
SINAMICS G220 converter
358 Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB