Rockwell Automation 20D-DL2-CL3 DriveLogix Controller Compact I/O Cable - Manual (Page 8)

8 Compact I/O Cable for DriveLogix™5730 Controller
Publication 20D-IN008B-EN-P - August 2004
Step 1: Removing Power from Drive and Compact I/O
To avoid an electric shock hazard, verify that the voltage on the bus
capacitors has discharged before performing any work on the drive.
Measure the DC bus voltage at the +DC & –DC terminals of the
Power Terminal Block. The voltage must be zero.
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
Task Description
Turn off and lock out input power.
Wait five minutes.
Verify that there is no voltage at
the drive’s input power terminals.
Measure the DC bus voltage at
the +DC & -DC terminals on the
Power Terminal Block. The voltage
must be zero.
A
B
C
ATTENTION
!