NORD Drivesystems BU0060 - Manual (Page 52)

CANopen – Supplementary manual options for NORD - Frequency Inverters
52 BU 0060 GB-4112
The broadcast function is activated when the interface parameter (P509=11) is set to CAN broadcast.
This assumes that the control data and setpoint are specified via CANnord.
Only process data can be transferred with broadcast telegrams. Status data are not returned
(unconfirmed service).
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4.2.6 Parametrerisation in CAN mode
In order to process a parameter (read or write / change an inverter parameter) a unique order
telegram is sent to the frequency inverter from the master. The FI responds with the corresponding
response.
In principle, the area of the telegram which is relevant for processing the parameter consists of a
parameter identification, in which the type of order (Write, Read etc.) and the relevant parameters
are specified. Individual parameter sets or array elements can be addressed with the aid of the Index.
The parameter value contains the value to be written or read.
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Parameter label (PKE)
The order or response and the associated parameters are encrypted in the parameter label (PKE).
1 2 3 4
PKE IND PWE1 PWE2
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
AK
SPM
PNU
The parameter label (PKE) is always a 16 bit value.
PNU Bits 0 to 10 contain the number of the required parameter (PNU), or the number of the
current parameter in the response telegram of the frequency inverter.
Information Parameter number PNU
For the inverter parameter numbers (PNU) of the particular inverter series please refer to the relevant operating
instructions.
SPM Bit 11 is the toggle-bit for spontaneous messages. This function is not supported!
AK Bits 12 to 15 contain the order or response label.
Information
Labelling: AK
Both the order label and the response label are abbreviated as AK. Therefore, care must be taken when reading
or interpreting the order processing description in this section.