Installation
312
8.
INSTALLATION
Connection of the control and communications signals
298
DDS
HARDWARE
Ref.1310
Transmission speed changing procedure
In an initial state (0 state), the display shows the information that already
showed in previous versions (errors, SERCOS phase, etc.). 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.
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 memo-
ry 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).
Any change of the communication speed is maintained after the drive is
turned off if the command to save parameters has been previously execut-
ed successfully.
If, for any reason, the drive is turned off or reset in any stage of this proce-
dure, 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 chang-
es) at any time if the command to save parameters has not been executed.
F. H8/28
Diagram of the SERCOS transmission speed selecting procedure.
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 se-
lected.
NOTE. While in state 1, after 8 seconds without pressing the “boot” but-
ton, the drive switches to 0 state and the display shows the initial informa-
tion.
no
yes
yes
no
no
no
yes
Normal Display
Start
yes
Show the transmission
rate on the display
Pressed
t < 0.8 s
Button ON
t > 3 s
Button OFF
t > 3 s
Next rate
yes
Save parameters
Saved
Ok
Drive Reset
Normal display
Error message
no
no
yes
Button OFF
End
End
Button ON
t > 3 s
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