Siemens MICROMASTER 420 - Page 61

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MICROMASTER 420 Reference Manual
Issue A1
53
3.3.8 Reply telegram (MICROMASTER 420 → Master)
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The first word of the PZD reply telegram is the inverter status word
(ZSW). This is normally the inverter status word as defined in
parameter r0052. This is defined as follows:
Table 3-6 Inverter Status Word (PZD)
Bit 0 Drive ready. 0 NO 1 YES
Bit 1 Drive ready to run. 0 NO 1 YES
Bit 2 Drive running. 0 NO 1 YES
Bit 3 Drive fault active. 0 YES 1 NO
Bit 4 OFF2 active. 0 YES 1 NO
Bit 5 OFF3 active. 0 NO 1 YES
Bit 6 Switch on inhibit active. 0 NO 1 YES
Bit 7 Drive warning active. 0 NO 1 YES
Bit 8 Deviation setpoint / actual value. 0 YES 1 NO
Bit 9 PZD control (Process Data Control) 0 NO 1 YES
Bit 10 Maximum frequency reached. 0 NO 1 YES
Bit 11 Warning: Motor current limit. 0 YES 1 NO
Bit 12 Motor holding brake active. 0 YES 1 NO
Bit 13 Motor overload. 0 YES 1 NO
Bit 14 Motor running direction right. 0 NO 1 YES
Bit 15 Inverter overload. 0 YES 1 NO
You wish to choose a different status word for the reply telegram. This can be
done by defining the source of the status word in index 0 of parameter P2016 or
P2019. These are both level 3 parameters, so P0003 must = 3 to access these
parameters.
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The second word of the PZD reply telegram is the main actual value
(HIW). This is normally defined as the inverter output frequency. The
normalization via P2009 (as explained above) also applies to this value.
If you wish to choose a different actual value for the reply telegram, this
can be done by defining the source of the actual value in index 1 of
parameter P2016 or P2019, (e.g. the setting 27 would give actual
current). These are both level 3 parameters, so P0003 must = 3 to
access these parameters.