Fagor DDS Series Hardware Manual page 303

Change of transmission speed
In an initial state (0 state), the display shows certain information that lacks
interest for the operator, except the software version, errors and warnings if
there are any. Keeping the "boot" button pressed for 3 seconds (long push)
it switches to a new state (state 1) that is used for selecting the communication
speed and the display shows the speed currently selected.
F. H8/42
Diagram of the CAN transmission speed selecting procedure.
In this state 1, every time this button is pressed for less than 0.8 seconds (short
push), the display shows the next communication speed value that may be
selected. Hence, apply several short pushes until the desired speed is
displayed.
Once the display shows the desired speed, apply a long push and QP11 will
be assigned its associated value that will be saved into the flash memory of
the drive and will reset the drive.
Anomalous events during the procedure
Any error that comes up when saving parameters into flash memory, will be
displayed with an error message on the display while the "BOOT" button is
pressed and then it will return to state 1 (speed selection).
NOTE. Any attempt to select a value other than those assigned to the
possible transmission speeds will generate an error and it will not be
selected.
Any change of the communication speed is maintained after the drive is turned
off if the command to save parameters has been previously executed
successfully.
If, for any reason, the drive is turned off or "RESET" in any stage of this
procedure, when started up again, the transmission speed value given by
QP11 will be the last one that was successfully assigned in previous changes.
The speed change procedure may be ignored (without making any changes)
at any time if the command to save parameters has not been executed.
NOTE. While in state 1, after 8 s without pressing the "BOOT" button, the
drive switches to 0 state and the display shows the initial information.
   Installation
8.
DDS
HARDWARE
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