5.3
Motor / characteristic curve parameters
BU 0500 GB
Subject to technical alterations
77
Parameter
Set value / Description / Note
Device
Supervisor
Parameter
set
P203
Nominal motor current
S P
0.1 ... 300.0 A
[
***
]
The nominal motor current is a decisive parameter for the current vector control.
P204
Nominal motor voltage
S P
100 ... 800 V
[
∗∗∗
]
The >Nominal voltage< matches the mains voltage to the motor voltage. In combination with the
nominal frequency, the voltage/frequency characteristic curve is produced.
P205
Nominal motor power
P
0.00 ... 150.00 kW
[
***
]
The motor nominal power controls the motor set via P200.
P206
Motor cos
ϕ
S P
0.50 ... 0.90
[
***
]
The motor cos
ϕ
is a decisive parameter for the current vector control.
P207 Motor
circuit
S P
0 =
Star
1 =
Delta
0 ... 1
[
***
]
The motor circuit is decisive for stator resistance measurement (P220) and therefore for current
vector control.
P208 Stator
resistance
S P
0.00 ... 300.00
Ω
[
***
]
Motor stator resistance
⇒
restistance of a phase winding with a DC motor.
Has a direct influence on the current control of the FI. Too high a value will lead to a possible
overcurrent; too low a value to a motor torque that is too low.
The parameter P220 can be used for simple measurement. Parameter P208 can be used for
manual setting or as information about the result of an automatic measurement.
NOTE:
For optimum functioning of the current vector control, the stator resistance must be
automatically measured by the FI.
P209
No load current
S P
0.1 ... 300.0 A
[
***
]
This value is always calculated automatically from the motor data if there is a change in the
parameter >cos
ϕ
< and the parameter >Nominal current<.
NOTE:
If the value is to be entered directly, then it must be set as the last motor data. This
is the only way to ensure that the value will not be overwritten.
P210 Static
boost
S P
0 ... 400 %
[ 100 ]
The static boost affects the current that generates the magnetic field. This is equivalent to the no
load current of the respective motor and is therefore load-independent. The no load current is
calculated using the motor data. The factory setting of 100% is sufficient for normal applications.
∗∗∗
These settings are dependent on the nominal power of the FI or the selection in parameter P200.
