5.7.2 Reading parameters
Read access enables direct reading of all parameters of the frequency inverter. This is useful if
the parameter is not connected to a source. Since the read access is effected to the non-
realtime system of the frequency inverter, an instruction may take longer than 1 ms. The in-
struction is processed for the duration of the parameter access even if this takes longer than 1
ms.
If a non-permissible data set or index is selected, it will be replaced by one of the following
data sets or indices.
Data Set/
Index
Data set related parameters Non-data set related pa-
rameters
0
Instead, data set 1 is used.
Instead, index 1 is used.
Data set 0
1...4/
1…max. index
Value of data set 1…4
Value from index 1…max. Index
Data set 0
Invalid value Instead, data set 1 (or index 1) is used. Data set 0
All data sets are accessed from the RAM. Internal access to the EEPROM and RAM is done in
the same way.
5.7.2.1 [421] Read frequency parameter
Type Function Type Function
I1 - - O1 % Parameter value [Hz]
I2 - - O2 % inverted output = -1
I3 b Release read access P1 i Parameter number
I4 - - P2 i Data set (0 … 4)/index
Description:
The function reads the value of the parameter set up in P1 "Parameter number" and P2 "Data
set/index". The value is converted to a frequency value. Via Input I3 read access is enabled.
I3 = 0: No read access.
I3 = 1: The parameter value is read. The instruction is executed until the value is read.
5.7.2.2 [422] Read current parameter
Type Function Type Function
I1 - - O1 % Parameter value [A]
I2 - - O2 % inverted output = -1
I3 b Release read access P1 i Parameter number
I4 - - P2 i Data set (0 … 4)/index
Description:
The function reads the value of the parameter set up in P1 "Parameter number" and P2 "Data
set/index". The value is converted to a current value. Via Input I3 read access is enabled.
I3 = 0: No read access.
I3 = 1: The parameter value is read. The instruction is executed until the value is read.
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