
8-19
Operating the Drive
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames E & F
Using Line Reactors
IMPORTANT
A line reactor MUST be used with the 890CS Common Bus Supply unit to reduce the harmonic
content of the supply current.
Line reactors are not required to limit input current to 890SD drives. However, line reactors may be used to
reduce the harmonic content of the supply current where this a particular requirement of the application or
where greater protection from mains borne transients is required.
Using Output Contactors
The use of output contactors is permitted. It is recommended that this type of operation be limited to
emergency use only or in a system where the drive can be inhibited before closing or opening this
contactor.