MR ETOS TD, Operating Instructions Manual

Page: 145 / 356

9 Visualization
Maschinenfabrik Reinhausen GmbH 2020 145 4453918/14 EN ETOS
®
TD
Response to value falling below active power P
min
If the measured active power P
meas
falls below the set parameter P
min
, the
value U
min
is adopted as the desired value.
U
ref
= U
min
Response to a measured active power P
meas
= 0 MW:
If the measured active power P
meas
= 0, the set parameter U
0
is adopted.
U
ref
= U
0
Linear dependency with negative active power:
If the measured active power P
min
≤ P
meas
≤ 0, the desired value is calculated
using the following equation:
U
ref
=
U
0
- U
min
0 - P
min
× P
meas
+ U
0
Linear dependency with positive active power:
If the measured active power 0 ≤ P
meas
≤ P
max
, the desired value is calculated
using the following equation:
U
ref
=
U
max
- U
0
P
max
× P
meas
+ U
0
To activate the active power-dependent adjustment of the desired voltage
value, you need to set the following parameters:
Activating TDSC
The TDSC function is only active when the device can calculate the active
power (correct current measurement and voltage measurement) and the re-
quired parameters are set. If this isn't done, the voltage is regulated to the
set desired value [
► Section 9.15.1.1, Page 140]. You can activate or deacti-
vate the power-dependent adjustment of the desired voltage value as fol-
lows:
▪ Parameter
▪ Digital inputs TDSC on and TDSC off (optional)
▪ Control system command (optional)
If you activate TDSC, the line drop compensation (R&X compensation or Z
compensation) function is deactivated.
To activate/deactivate TDSC using parameters, proceed as follows:
1. Go to Settings > Parameters > Control > Activate TDSC .