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PAM-199-P-PFN
7.7 Parameterizing via Profibus
7.7.1
Procedure
Preparation:
-
Power supply of the different sections has to be available.
-
For safety issues the system should not be active.
If active, the ENABLE bit in the control word has to be reset.
Attention:
Parameterization via fieldbus can also be done having an active system. In this case it
should be done very carefully because changes are directly operative.
Parameterization:
-
At first the
PARA MODE
bit has to be set to enable parameterizing via ProfiNet.
This will be reported via the
PARA ACTIVE
bit.
-
Pretend
address
and new
value
of the parameter which should be changed.
-
Setting the
PARA VALID
bit to high will transmit the data.
The
PARA READY
bit will report a successful parameterization.
Attention:
A missing
para ready
bit means parameterization was not done.
Storing:
-
Same procedure as parameterizing standard parameters.
-
Selecting
2100
as
address
, written
value
does not matter (below 60000).
Password protection:
-
If a password was set this has to be entered first for enabling parameterization. Procedure is the same
as when parameterizing standard parameters.
-
Select
2200
as
address
and send the password (PASSFB) as
value
.
-
After
PARA READY
reports success, subsequently parameterizing can be done as long as
PARA
MODE
stays active. After resetting it password has to be renewed when it gets activated again.
If the password was transferred incorrect three times, the parameterization mode gets locked (reported
by deactivated
PARA ACTIVE
bit). Only restarting the device enables three new attempts for enabling.
Please note that a storage of the parameterization via the Profinet is limited in the number of writing
cycles. Means it should be done only when necessary.
If the PWM frequency gets changed possibly the closed loop current controller has to be adapted. This
happens automatically and is only possible via bus as well as manually via WPC by setting the param-
eter ACC to OFF before.
Notice that parameterizing the PWM frequency is special. It can be set only in defined exact steps.
To simplify parameterizing via bus only the step has to be chosen, not the exact frequency. The
lowest possible frequency is 61 Hz on step 1 and the highest possible frequency is 2604 Hz on
step 20. The adjustable values are described in chapter PWM 5.6.4.
