Siemens SINAMICS G120 Operating Instructions Manual page 156

Commissioning
5.5 Quick commissioning with a PC
Selecting a suitable application class
When selecting an application class, the inverter assigns the appropriate settings to the motor
control.
Application class
Characteristics ● Typical settling time after a speed change:
100 ms ... 200 ms
● Typical settling time after a sudden load
change: 500 ms
● Standard Drive Control is suitable for the
following requirements:
–
–
–
● Standard Drive Control is insensitive to
inaccurate motor data settings
Application ex‐
● Pumps, fans, and compressors with flow
amples
characteristic
● Wet or dry blasting technology
● Mills, mixers, kneaders, crushers, agitators
● Horizontal conveyor technology (conveyor
belts, roller conveyors, chain conveyors)
● Basic spindles
Motors that can
be operated
Power Modules
that can be oper‐
ated
Max. output fre‐
quency
156
Standard Drive Control
Motor power ratings < 45 kW
Ramp-up time 0 → Rated speed (dependent
on the rated motor power):
1 s (0.1 kW) ... 10 s (45 kW)
Applications with constant load torque
without load surges
Induction motors
550 Hz
● Typical settling time after a speed change:
< 100 ms
● Typical settling time after a sudden load
change: 200 ms
● Dynamic Drive Control controls and limits the
motor torque
● Torque accuracy that can be achieved: ± 5 %
for 15 % ... 100 % of the rated speed
● We recommend Dynamic Drive Control for the
following applications:
– Motor power ratings > 11 kW
– For load surges of 10 % ... >100 % of the
rated motor torque
● Dynamic Drive Control is necessary for a ramp-
up time 0 → rated speed (dependent on the rated
motor power): < 1 s (0.1 kW) ... < 10 s (132 kW).
● Pumps and compressors with displacement
machines
● Rotary furnaces
● Extruder
● Centrifuge
Induction and synchronous motors
PM240‑2, PM240P-2
Converter with the CU240B-2 and CU240E-2 Control Units
Operating Instructions, 01/2017, FW V4.7 SP6, A5E34259001B AD
Dynamic Drive Control
240 Hz