CDA3000 Operation Manual
3-7
3  Installation
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EN
FR
IT
ES
FR
1
2
3
4
5
A
Attention: Danger to life! Never wire or disconnect electrical connec-
tions while they are live! Before working on the device discon-
nect the power. Wait until the DC-link voltage at terminals X1/
RB+ and L- has fallen to the safety-low voltage before work-
ing on the device (approx. 5 minutes).
Mains filter
 
Note the following points: 
• Only all-current sensitive fault current breakers suitable for inverter 
operation may be used.
• Switching the mains power: Cyclic power switching is permitted 
every 60 seconds; jog mode is not permitted.
−  If switching is too frequent, the device protects itself by means 
of high-resistance isolation from the system.
−  After a rest phase of a few minutes the device is ready to start 
once again.
• TN network and TT network: Permitted without restriction.
• IT network (insulated center point): Not permitted!
−  In the event of a ground fault the voltage stress is around twice 
as high, and creepages and clearances to EN50178 are no 
longer maintained.
• For details of measures to maintain UL approbation refer to 
Appendix A.7.
Size Power range Mains filter
BG1 ... 4 0.75 ... 7.5 kW Internal
BG5 ... 8 11 ... 132 kW
External
1)
1) For supplementary components see CDA3000 Order Catalogue.
Note:  
Compliance with the limit curves (EN61800-3) to attenuate the line-
borne interference voltage and the interference emitted from the inverter
module depends on
• use of a line choke (recommended),
• the length of the motor cable and
• the preset clock frequency (4, 8 or 16 kHz) of the inverter module 
power stage.
For further information please consult your project engineer.