Manual – MOVIDRIVE® MDX60B/61B Communication and Fieldbus Unit Profile
113
7
Notes on parameterization
SEW Unit Profile
7.7
Notes on parameterization
By parameterizing the MOVIDRIVE
®
inverter via the fieldbus system, you can generally
reach all drive parameters. As some drive parameters are directly connected with the
communciation via fieldbus system, you should observe the following notes on
parameterization.
Parameter setting
in CONTROLLER
INHIBIT condition
Some parameters can only be changed (written) in
CONTROLLER INHIBIT
drive status.
The inverter signals this by a negative acknowledgement of the write service. Refer to
the parameter list to see what parameters are subject to this limitation. In general, these
parameters can be changed during an error or
24 V operation
.
Factory setting
Activating the factory setting means nearly all parameters are reset to their default
values. The consequence for bus operation is that the control signal source and setpoint
source are reset to their default values.
Parameter lock
The parameter lock is activated by setting
P803 Parameter lock = Yes
. It protects all
adjustable parameters from being changed. Activating parameter lock is useful when all
drive inverter parameters have been set and need not be changed anymore. This
parameter lets you, for example, use the keypad of the drive inverter to protect the drive
inverter parameters from being changed.
TIP
The drive inverter must be enabled at the terminals for control via process data. This
means that the drive is enabled under certain conditions after a factory setting. There-
fore, make sure before activating the factory setting that the signals of the digital binary
inputs will not trigger a drive inverter enable once the factory setting has been restored.
As a precaution, do not switch on the mains voltage until you have completed inverter
parameterization.
TIP
The parameter lock generally prevents the writing of parameters. Consequently, write
access via communication interfaces is also blocked when the parameter lock is
active.
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