Siemens MICROMASTER 420 Reference Manual page 59

This is a level 3 parameter, so you must set P0003 = 3 to access it. There are four
possible settings, 0, 3, 4 and 127. For MICROMASTER 420 the most useful are
127 = variable= [default setting] or 4. It is important to note that if the setting 4 is
used, the parameter values will appear in PWE2, not PWE1 when reading or
changing single word parameter values:
P2013 = 127:
→
P2013 = 4
→
•
Setting P2013 to 3 would not allow double word (i.e. non-integer) parameter
values to be accessed.
•
This will be corrected in the next software release. If you have 1.05 software (see
parameter r0018) and intend reading or writing single word parameter values via
the PKW (i.e. parameters with non-BiCo integer values such as P0700 etc), we
would recommend not using the setting P2013 = 4 as the above handling error will
not be supported in later software. If the PKW is only used for reading and writing
double word parameters (e.g. ramp times etc) there will be no problem with the
setting P2013 = 4.
3.3.6 PZD area (Process Data area)
The PZD area of the telegram is designed for control and monitoring of the
inverter. The received PZD is always processed with high priority in the master
and the slave. PZD processing has priority over PKW processing, and always
transfers the most current data available at the interface.
Table 3-4
→
→
The MICROMASTER 420 normally uses a 2 word PZD, although it is possible for
the inverter to operate with PZDs of 0 to 4 word lengths, depending on the setting
of P2012 (level 3). Examples of non-2 word PZDs will be discussed later.
MICROMASTER 420 Reference Manual
Issue A1
→
→
On 1.05 software version the parameter value for
values appears in PWE1 rather than PWE2 when P2013 is set to 4.
PZD Area Structure
PZD1
STW
ZSW
Set P0700 to value 5
(0700= 2BC (hex)).
PZD2 PZD3
HSW HSW2
HIW ZSW2
PZD4
STW2
HIW2
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