Rockwell Automation 20D PowerFlex 700S/700H Drives, Frames 10...14 NEMA/UL Type 12 Door and Roof Filters - Manual (Page 2)

2 Rockwell Automation Publication PFLEX-IN018C-EN-P - February 2011
PowerFlex® 700S and 700H Drives, Frames 10…14, NEMA UL Type 12 / IP54 Replacement Door and Roof Filters
Step 1: Remove Power
from the Drive
1. Turn off and lock out input power.
2. Wait a minimum of five minutes, and verify that there is no voltage at the
drive’s input power terminals.
3. Check the DC bus voltage at the power terminal block by measuring
between the +DC & –DC terminals, between the +DC terminal and the
chassis, and between the -DC terminal and the chassis. The voltage must
be zero for all three measurements.
ATTENTION: To avoid an electric shock hazard, verify that the voltage on
the bus capacitors has discharged before performing any work on the
drive. Check the DC bus voltage at the power terminal block by measuring
between the +DC & –DC terminals, between the +DC terminal and the
chassis, and between the -DC terminal and the chassis. The voltage must
be zero for all three measurements.
Remove power before making or breaking cable connections. When you
remove or insert a cable connector with power applied, an electrical arc
may occur. An electrical arc can cause personal injury or property damage
by:
•
sending an erroneous signal to your system’s field devices, causing
unintended machine motion
•
causing an explosion in a hazardous environment
Electrical arcing causes excessive wear to contacts on both the module
and its mating connector. Worn contacts may create electrical resistance.
L1 L2 L3
O
I
DC+ DC–
0V
0V