Installation manual

Frame 11 Installation 8-13
Power Wiring
AC Input Wiring
The table below identifies which frame 11 drives contain only one
rectifying module and which frame 11 drives contain two rectifying
modules. Drives with one rectifying module contain only one set of input
power terminals. Drives with two parallel rectifying modules contain two
sets of input power terminals--you must supply power to both sets of input
terminals on these drives. There are several methods for accomplishing this.
Each of these methods is shown below.
Important:Parallel wiring must have the same cable dimensions, type and
routing. Non-symmetrical wiring may cause unequal loading
between the converters and reduce the drive’s ability to deliver
current to the motor.
Figure 8.1 AC Wiring Example: Two Fuses per Phase
Voltage Class Amps
Number of
Rectifiers
400/480V AC Input 590 2
650 2
730 2
600/690V AC Input 460 1
502 1
590 2
1L1
1L2
1L3
2L1
2L2
2L3
L1 L2 L3
AC Input Power Terminals
Inside Drive
AC Input Power Wiring, Fuses, and
Disconnect Device Provided by
Customer