NORD Drivesystems BU0090 User Manual
Page 53
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5 Data transfer / Parameter-string transfer
BU 0090 GB
53
Error messages if the order cannot be executed
In the response label "Order cannot be executed" (AK = 7), then an error message is added to the parameter
value (PWE2) of the inverter response. For the meanings of the values transferred, please refer to the
following table.
No.
Meaning
0
Invalid parameter number
1
Parameter value cannot be changed
2
Lower or upper value limit exceeded
3 Incorrect
sub-index
4 No
array
5
Invalid data type
6
Only resettable (only 0 may be written)
7
Description element cannot be changed
9
Description data not present
201
Invalid order element in the last order received
202
Internal response label cannot be depicted
5.5.2
Sub-index (IND)
1 2 3 4
PKE
IND PWE1 PWE2
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
P1-P4
No information / all 0
Array 1-64
P1-P4
Sub-index
Array
1-256
The structure and function of the parameter index (IND) depends on the type of parameter to be transferred.
For values which depend on the parameter set, the parameter set can be selected via Bits 8 and 9 of the Index
(IND) (0 = parameter set 1, 1 = parameter set 2,...).
If the parameter to be processed is also an array parameter (e.g. position array for the PosiCon option), then
the sub-index of the required parameter can additionally be accessed via Bit 10 to Bit 15 of the sub-index
(0 = array element 1, 1 = array element 2,…):
Array element
Parameter set
Index
5 (000101
BIN
) 2
(01
BIN
) 15
HEX
= 0001 0101
BIN
21 (010101
BIN
) 4
(11
BIN
) 57
HEX
= 0101 0111
BIN
If a parameter is not dependent on the parameter set, then Bit 8 -15 are used for the sub-index.
Please refer to the operating instructions for details of the structure of the individual parameters and which
values may be called up.
If the sub-index is used, nos. 6, 7, 8 or 11, 12 must be used as the order label (see Section 5.5.1), in
order for the sub-index to be effective.