Specifications

Comfort Reference Value – 5th Generation of STÖBER Inverters STÖBER
ANTRIEBSTECHNIK
11. Used Parameters
KSW-113
B.. Motor
Par. Description Fieldbus-
address
B24
Axis
r=2, w=2
Switching frequency: The noise volume of the drive is affected by changing the switching
frequency. Increasing the switching frequency increases losses, however. For this reason, the
permissible nominal motor current (B12) must be reduced when the switching frequency is
increased. With operation of a servo motor (B20=64), at least 8 kHz must be set. With a setting of 4
kHz, an internal switch to 8 kHz is performed for servo operation. In some operating states, the
switching frequency is changed by the inverter itself. The currently active switching frequency can
be read in E151.
NOTE
The factory setting of this parameter depends on B20. With a servo controller, the value 8:8kHz is
entered in B24. When an asynchronous machine (V/f controller, sensorless vector controller and
vector controller) is used, B24 has the value 4:4kHz.
4: 4kHz;
8: 8kHz
;
16: 16kHz;
Fieldbus: 1LSB=1; Type: U8; USS-Adr: 02 06 00 00 hex
2218h 0h
B25
Axis, OFF
r=2, w=2
Halt flux: B25 specifies whether the motor with applied brakes remains electrified during halt and
quick stop. Particularly useful for positioning. After a HALT, the motor remains fully electrified for
the time B27. After expiration of this time, the electrification is lowered to the level specified in B25.
When 0% is the setting and the brake is applied (halt, quick stop), the motor goes dead and the flux
is canceled. The advantage is a better thermal motor balance since the motor can cool off during
the pause times. The disadvantage is the additional time for establishment of magnetization (rotor
time constant, approx. 0.5 sec). The required time is determined automatically by the inverter and
added to brake release time F06.
Value range in %: 0 ... 100 ... 100
Fieldbus: 1LSB=1%; Type: I16; (raw value:32767·LSB=800%); USS-Adr: 02 06 40 00 hex
2219h 0h
B26
Axis, OFF
r=1, w=1
Motor encoder: Selection of the interface to which the motor encoder is connected. The encoder
must be correctly parameterized in H.. for the particular interface (see encoder list in the H.. group).
NOTE
Remember that the interfaces X120 and X140 are only available on the MDS 5000. The settings
3:X140-Resolver and 4:X120-Encoder do not exist on the FDS 5000.
0: inactive;
1: BE-encoder; An incremental encoder which is connected to terminals BE4 and BE5 is used as
motor encoder. The exact parameterization of the encoder must be performed in H10 ... H12.
2: X4-encoder; The motor encoder is connected to interface X4. The exact parameterization of the
encoder must be performed in H00 ... H02.
3: X140 resolver; A resolver on the optional interface X140 is used as motor encoder. The exact
parameterization of the encoder must be performed in H30 ... H32.
4: X120-encoder; The motor encoder is connected to the optional interface X120. The precise
parameterization of the encoder must be performed in H120 to H126. Note: The interface X120
is only available with the "I/O terminal module, expanded (XEA 5000)" and "I/O terminal module,
expanded (XEA 5001)" respectively!
Fieldbus: 1LSB=1; Type: U8; USS-Adr: 02 06 80 00 hex
221Ah 0h
B27
Axis, OFF
r=2, w=2
Time halt-flux: In case of a reduced halt flux B25, the applied brake and active power pack of
the full magnetization current is still maintained for the time B27.
Value range in s: 0 ... 0 ... 255
Fieldbus: 1LSB=1s; Type: U8; USS-Adr: 02 06 C0 00 hex
221Bh 0h