Rockwell Automation 20D PowerFlex 700S Phase II Drive Frames 1...6 Installation Instructions - Manual (Page 27)

Rockwell Automation Publication 20D-IN024C-EN-P - July 2013 27
PowerFlex 700S Adjustable Frequency AC Drive - Phase II Control
Power Jumpers
PowerFlex 700S Phase II drives contain protective MOVs and Common Mode
Capacitors that are referenced to ground (see below). To guard against unstable
operation and/or damage, the drive must be properly configured as shown in
Table 10 on page 27 .
Table 10 - Recommended Power Jumper Configurations
IMPORTANT All PowerFlex 700S Phase II drives are shipped with the DC bus common mode
capacitors referenced to ground. The following installation instructions must
be completed before applying power to the drive.
Power Source Type
(1)
(1) It is highly recommended to accurately determine the power source type and then configure appropriately.
MOV/Input Filter
Caps
(2)
(2) When MOVs are disconnected, the power system must have its own transient protection to verify known and controlled voltages.
DC Bus Common
Mode Caps Benefits Of Correct Configuration on
Power Source Type
Solid Ground
• AC fed, solidly grounded
• DC fed from passive rectifier, which has
an AC source and solid ground
Connected Connected • UL compliance,
• Reduced electrical noise,
• Most stable operation,
• EMC compliance,
• Reduced voltage stress on
components and motor bearings
Non-Solid Ground
• AC fed ungrounded
• Impedance grounded
• High resistive ground
• B phase ground
• Regenerative unit such as common DC
bus supply & brake
• DC fed from an active converter
Disconnected Disconnected • Helps avoid severe equipment
damage when ground fault
occurs
R/L1
S/L2
T/L3
DC+
DC–
MOV and AC EMI Capacitor Phase to Ground
Common Mode Capacitor Phase to Ground
Jumper Wire
Jumper Wire