Siemens SINAMICS S120 Function Manual page 66

Servo control
2.9 Ramp-function generator
Subject
Sampling time current
controller/speed controller/pulse
frequency
Connectable motors
Position interface
via PROFIdrive for higher-level
motion control
Encoderless
speed control
Motor identification
(third-party motors)
Speed controller optimization
V/f control
Encoderless
closed-loop torque control
Field-weakening range for
induction motors
Maximum
output frequency
with closed-loop control
66
Servo
Booksize:
125 μs / 125 μs / >= 4 kHz
(factory setting 4 kHz)
Blocksize:
125 μs / 125 μs / >= 4 kHz
(factory setting 4 kHz)
Chassis
(frame sizes Fx and Gx):
250 μs / 250 μs / >= 2 kHz
(factory setting 2 kHz)
125 μs /125 μs / >= 4 kHz
Synchronous servomotors
Induction motors
Torque motors
Yes
Yes (from 10 % rated motor
speed)
Yes
Yes
Diagnostic mode
No
<= 16 * field-weakening
threshold speed (with encoder)
<= 5 * field-weakening threshold
speed (without encoder)
1300 Hz with 62.5 μs / 8 kHz
650 Hz with 125 μs / 4 kHz
300 Hz with 250 μs / 2kHz
Function Manual, (FH1), 10/2008, 6SL3097-2AB00-0BP5
Vector
Booksize:
250 μs / 1000 μs / >=2 kHz
(factory setting 4 kHz)
500 μs / 2000 μs / >= 2 kHz
(factory setting 4 kHz)
Blocksize:
250 μs / 1000 μs / >= 2 kHz
(factory setting 4 kHz)
500 μs / 2000 μs / >=2 kHz
(factory setting 4 kHz)
Chassis:
<=250kW: 250 μs / 1000 μs /
>=2 kHz
> 250 kW: 400 μs / 1600 μs /
>=1.25 kHz
690 V: 400 μs / 1600 μs /
>=1.25 kHz
Induction motors
Synchronous motors (incl.
torque motors)
Reluctance motors (only for V/f
control)
Separately excited synchronous
motors
(only for closed-loop control with
encoder)
Note:
Synchronous motors of
series 1FT6, 1FK6 and 1FK7
not included
Yes
Yes (from standstill or 2% rated
motor speed)
Yes
No, only pre-assignment
of parameters
Yes (various characteristics)
Yes (open-loop control at low
speeds)
<= 5 * rated motor speed
300 Hz with 250 μs / 4 kHz
or with 400 μs / 5 kHz
240 Hz with 500 μs / 4 kHz
Drive functions