Siemens CU240B-2 Operating Instructions

Select the suitable application class
When selecting an application class, the inverter assigns the appropriate settings to the motor
control.
Application class Standard Drive Control Dynamic Drive Control
Properties
● Typical settling time after a speed change:
100 ms … 200 ms
● Typical settling time after a load surge: 500 ms
6SHHG
/RDG
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W
W
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● Standard Drive Control is suitable for the
following requirements:
– Motor power ratings < 45 kW
– Ramp-up time 0 → rated speed
(depending on the motor power rating):
1 s (0.1 kW) … 10 s (45 kW)
– Applications with increasing load torque
without load surges
● Standard Drive Control is insensitive with
respect to imprecise setting of the motor data
● Typical settling time after a speed change:
< 100 ms
● Typical settling time after a load surge: 200 ms
6SHHG
/RDG
0RWRU
WRUTXH
W
W
PV
● 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 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).
Application exam‐
ples
● Pumps, fans, and compressors with flow
characteristic
● Pumps and compressors with displacement
machines
Power Modules
that can be operat‐
ed
PM240‑2, PM240P-2 PM240‑2, PM240P-2 PM330
Max. output fre‐
quency
550 Hz 240 Hz 150 Hz
Motors that can be
operated
Induction motors Induction, synchronous and reluctance motors
Commissioning
● Unlike "Dynamic Drive Control," no speed
controller needs to be set
● Compared with the "EXPERT" setting:
– Simplified commissioning using
predefined motor data
– Reduced number of parameters
● Standard Drive Control is preset for Power
Modules, frame size A … frame size C
● Fewer parameters compared with the
"EXPERT" setting
● Dynamic Drive Control is preset for Frame
Size D … Frame Size JX Power Modules
Commissioning
5.5 Quick commissioning with a PC
Converter with the CU230P-2 Control Units
180 Operating Instructions, 09/2017, FW V4.7 SP9, A5E34257946B AE

Siemens CU240B-2 Specifications

General

Brand	Siemens
Model	CU240B-2
Category	Inverter
Language	English