User Manual

2 PowerFlex® 700S and 700H Frame 12 Replacement Power Structures
What You Need to Do
This document contains directions for replacing one power structure
mounted in a Rittal TS8 drive enclosure. These steps must be repeated for
the installation of the second power structure.
❐ Step 1: Remove power from existing drive
❐ Step 2: Remove protective covers from existing drive
❐ Step 3: Prepare old power structure for removal
❐ Step 4: Remove old power structure from drive
❐ Step 5: Remove existing ASIC board from old power structure
(optional)
❐ Step 6: Install ASIC board on new power structure
❐ Step 7: Configure EMC filter
❐ Step 8: Install new power structure
❐ Step 9: Connect power structure to components on drive
❐ Step 10: Install product identification label on new power structure
❐ Step 11: Start drive
Step 1: Removing Power
from the Existing Drive
!
ATTENTION: To avoid an electric shock hazard, verify that the
voltage on the bus capacitors has discharged before servicing the
drive. Check the DC bus voltage at the Power Terminal Block by
measuring between the +DC and -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.