Function
I/O
Type
Details
Regulators > AVR > External set
points > Deactivate external Q set
point
Digital
input
Pulse
When activated, the controller changes
Configure > Parameters >
Regulators > AVR general configuration > External offset > Q
set point enable
to
Not enabled
.
Regulators > AVR > External set
points > Activate external cos phi set
point
Digital
input
Pulse
When activated, the controller changes
Configure > Parameters >
Regulators > AVR general configuration > External offset > Cos
phi set point enable
to
Enabled
.
Regulators > AVR > External set
points > Deactivate external cos phi
set point
Digital
input
Pulse
When activated, the controller changes
Configure > Parameters >
Regulators > AVR general configuration > External offset > Cos
phi set point enable
to
Not enabled
.
It is also possible to activate and deactivate the external communication set points using Modbus. This is only possible if the function
has not been assigned to a digital input in PICUS.
More information
See
Discrete output coil (01; 05; 15)
in the
Modbus tables
for more information about the Modbus fucnctions and their
properties.
Parameters
The parameters are not visible in the controller or PICUS. To configure these parameters, you must have a Modbus interface to the
controller.
Table 6.5
Modbus function parameters
Parameter
Modbus
address
Modbus
function
codes
Valid
Modbus
range
Scaling
(10
-x
)
Unit Comment
Regulators > GOV
> Frequency
offset
8008
03; 06; 16
-100 to 100
1
%
If the operator activates
Activate external f offset
,
the frequency offset is determined by the value
set in Modbus.
The value entered is the percentage of the
nominal frequency that is added or subtracted
from the nominal frequency to determine the new
set point.
Regulators > GOV
> Power set point
8009
03; 06; 16
0 to 100
0
%
If the operator activates
Activate external P set
point
, the power set point is determined by the
value set in Modbus.
The value is a percentage of the controller
nominal power.
Regulators > AVR
> Voltage offset
8010
03; 06; 16
-100 to 100
1
%
If the operator activates
Activate external V offset
,
the voltage offset is determined by the value set in
Modbus.
The value entered is the percentage of the
nominal voltage that is added or subtracted from
the nominal voltage to determine the new set
point.
Regulators > AVR
> Reactive power
set point
8011
03; 06; 16
0 to 100
0
%
If the operator activates
Activate external Q set
point
, the reactive power set point is determined
by the value set in Modbus.
DESIGNER'S HANDBOOK 4189340911K UK
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