890CS & 890CD Common Bus Units   
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames B, C & D  Page 4-15 
8 
9 
10 
11 
 
B 
C 
D 
1 
2 
3 
4 
5 
6 
7 
E 
8 
9 
1 
2 
3 
4 
5 
6 
E 
Power Connections - 890CS Common Bus Supply 
The frame B and frame D 890CS units are each available in two power ratings: 
Frame B1 : 32A AC rms Input Current  Frame D1 : 108A AC rms Input Current 
Frame B2 : 54A AC rms Input Current  Frame D2 : 162A AC rms Input Current 
See the product rating label on the side of the unit to check the power rating. "0032" =  32A etc. 
Power Connections - 890CS Common Bus Supply 
SUPPLY  EARTH/GROUND 
SUPPLY
L1 L2 L3
 
Fix earth connections to 
. 
 
Maximum wire sizes: 
Frame B1: 10mm
2
 / 8AWG  
Frame B2: 16mm
2
 / 4AWG 
Frame D1: 50mm
2
 / 1/0AWG  
Frame D2: 95mm
2
 / 4/0AWG 
Connect 3-phase supply in any order. 
 
Maximum wire sizes: 
Frame B1: 10mm
2
 / 8AWG, 2.5-3Nm / 1.8-2.2lbf 
Frame B2: 16mm
2
 / 4AWG, 2.5-3Nm / 1.8-2.2lbf 
Frame D1: 50mm
2
 / 1/0AWG, 15-20Nm / 11-14.8lbf 
Frame D2: 95mm
2
 / 4/0AWG, 15-20Nm / 11-14.8lbf 
Refer to the 890 Installation Kit for 
earth/ground fixing details.  
Each unit must be permanently earthed 
according to EN 50178. 
For permanent earthing: one conductor, PE1, of 
>10mm² cross-section is required; or two 
individual incoming protective earth conductors, 
PE1 & PE2, of <10mm² cross-section. Each earth 
conductor must be suitable for the fault current 
according to EN 60204.