Siemens CU240B-2 Operating Instructions

10.6.5 General technical data, 400 V inverters
Property Version
Line voltage FSA … FSC 380 V … 480 V 3-ph. AC ± 10%
FSD … FSF 3-ph. AC 380 V … 480 V ± 10% (in operation -20% < 1 min)
Line supply configurations Grounded TN/TT line supplies or non-grounded IT line supplies
Connecting the line supply and motor (Page 83)
Line impedance FSA … FSC 1% ≤ Uk < 4%, for values smaller than 1%, we recommend a line reactor, or a
Power Module with the next higher power rating.
FSD … FSF No restrictions
Power factor λ FSA … FSC
FSD … FSF
0.7 without line reactor for Uk ≥ 1%
0.85 with line reactor for Uk < 1%
> 0.9
Output voltage 3-ph. AC 0 V … 0.95 x input voltage (max.)
Input frequency 50 Hz … 60 Hz, ± 3 Hz
Output frequency 0 … 550 Hz, depending on the control mode
Inrush current < LO base load input current
Overvoltage category ac‐
cording to EN 61800-5-1
III for line supplies
Pulse frequency Factory setting
● 4 kHz for devices with an LO base load power < 75 kW
● 2 kHz for devices with an LO base load power ≥ 75 kW
Can be adjusted in 2 kHz steps as follows:
● 2 kHz … 16 kHz for devices with an LO base load power < 55 kW
● 2 kHz … 8 kHz for devices with an LO base load output of 55 kW … 90 kW
● 2 kHz … 4 kHz for devices with an LO base load output ≥ 110 kW
If you increase the pulse frequency, the inverter reduces the maximum output current.
Short-circuit current rating
(SCCR) and branch protec‐
tion
≤ 100 kA rms
Branch protection and short-circuit strength according to UL and IEC (https://
support.industry.siemens.com/cs/ww/en/view/109479152)
Braking methods DC braking, compound braking, dynamic braking with integrated braking chopper
Degree of protection ac‐
cording to EN 60529
IP20
IP55 PT devices outside the control cabinet
Protection class according
to EN 61800-5-1
The inverters are devices with protection class I
Touch protection according
to EN 50274
DGUV regulation 3 when used for the intended purpose
Cooling in compliance with
EN 60146
Forced air cooling AF
Technical data
10.6 Technical data, PM240-2 Power Module
Converter with the CU230P-2 Control Units
Operating Instructions, 09/2017, FW V4.7 SP9, A5E34257946B AE 487

Siemens CU240B-2 Specifications

General

Brand	Siemens
Model	CU240B-2
Category	Inverter
Language	English