Siemens SINAMICS S120 Function Manual page 86

Servo control
Subject
Maximum output frequency with
closed-loop control
Note:
The derating characteristics in the various manuals must be carefully observed!
Max. output frequency when using dv/dt and sine-wave filters: 150 Hz
Response when operating at the
thermal limit of the motor
Speed setpoint
channel (ramp-function generator)
Parallel connection of power units
Permissible range of the ratio be-
tween the rated motor current
(p0305) and rated Motor Module
current (r0207)
86
Servo control
2600 Hz with 31.25 μs / 16 kHz
•
1300 Hz with 62.5 μs / 8 kHz
•
650 Hz with 125 μs / 4 kHz
•
300 Hz with 250 μs / 2 kHz
•
Note:
SINAMICS S can achieve the specified
values without tuning.
Higher frequencies can be set under the
following secondary conditions and addi-
tional tuning runs:
Up to 3000 Hz
•
– Operation without an encoder
– In conjunction with controlled in-
feeds
Up to 3200 Hz
•
– Operation with encoder
– In conjunction with controlled
infeeds
Absolute upper limit 3200 Hz
•
A license is required tor frequencies
> 600 Hz because of export regulations.
Reduction of the current setpoint or shut-
down
Optional
(reduces the number of drives from 6 to 5
Motor Modules with current controller
sampling times of 125 μs or speed con-
troller sampling times of 125 μs)
No
The permissible range of the ratio be-
tween the rated motor current (p0305)
and rated Motor Module current (r0207)
is, for servo control, 1:1 to 1:4.
With restrictions regarding the torque
accuracy and smooth running operation,
a ratio of up to 1:8 is possible.
Vector control
300 Hz with 250 μs / 4 kHz
•
or with 400 μs / 5 kHz
240 Hz with 500 μs / 4 kHz
•
Note:
If a higher output frequency is required,
consult the specialist support from
SIEMENS.
Reduction in the pulse frequency and / or
the current setpoint or shutdown (not
applicable with parallel connection /sine-
wave filter)
Standard
Booksize: No
•
Chassis: Yes
•
The permissible range of the ratio be-
tween the rated motor current (p0305)
and rated Motor Module current (r0207)
is, for vector control, 1.3:1 to 1:4.
With restrictions regarding the torque
accuracy and smooth running operation,
a ratio of up to 1:8 is possible.
Function Manual, 11/2017, 6SL3097-4AB00-0BP5
Drive functions