NORD Drivesystems BU0050 - Manual (Page 41)

1.5 USS - Data transfer
BU 0050 GB-3111 Subject to technical amendments 41
Error messages if the order cannot be executed
If the response label is "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 transferred values , 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
1.5.4.2 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
No information / all 0 P1-P4
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 0 and 1 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 2 to Bit 7 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 Bits 0 -7 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.