Lust CM-CAN1, User Manual, Page: 49 / 84

User Manual CM-CAN1
4-21
4 Setting the device parameters
DE
EN
1
2
3
4
5
6
7
A
Handshake to upload a complete parameter data set
1. Register upload with parameter 80-SLOAD = -1
−
A write operation to this parameter is only possible when the
system is at a standstill. After the write operation the drive con-
troller is secured against being switched on until the download is
finished.
2. Transfer complete parameter data set
−
With several Select telegrams the individual parameters are
transferred from the master computer to the drive controller.
The servocontroller initially accepts the new parameter values
without carrying out a plausibility check.
3. Terminate upload with parameter 80-SLOAD = -2
−
When all parameter data have been transmitted, the master
computer sets SLOAD to the value (-2). This signal the end of
the data transfer to the drive controller. The servocontroller then
begins checking its entire data set for plausibility. If the data set
is valid, the parameters are accepted with the attribute “Card-
Writeable” into the EEPROM. The drive is enabled again and
can be started. The parameter 80-SLOAD is set according to the
result of the parameter check.
4. Poll parameter 80-SLOAD with timeout (10 s)
−
If SLOAD becomes 0 within the timeout the transfer was com-
pleted correctly. The parameters are accepted into the
EEPROM with the attribute “CardWriteable”. The drive is
enabled again and can be started.
−
If SLOAD = (-1) within the timeout, the drive controller is still
busy verifying and saving. If SLOAD > 0, the drive controller has
rejected the data set. The value of SLOAD then corresponds to
the number of the first parameter of which the value is invalid.
5. If the parameter data set has been accepted in full, the data set can
be permanently stored in the device by way of parameter 150-SAVE.
Note: If the connection is interrupted during transfer, or if the
timeout expires, the transfer must be repeated or the drive
controller restarted.