Rockwell Automation 21G 750-Series POD Remote Mounting Kit - Manual (Page 4)

Rockwell Automation Publication 750-IN015B-EN-P - September 2011
4 PowerFlex 750-Series Control Pod Remote Mounting Kit
Removing Power from the
Drive
1. Turn off and lock out input power. Wait five minutes.
2. Verify that there is no voltage at the drive’s input power terminals.
3. Measure the DC bus voltage at the -DC and +DC TESTPOINT sockets
on the front of the power module.
ATTENTION: To avoid an electric shock hazard, verify that the voltage on
the bus capacitors has discharged completely before servicing. Measure
the DC bus voltage at the -DC and +DC TESTPOINT sockets on the front of
the power module (see below for location).
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