Chapter
1
Publication 1336 IMPACT-6.8 – November, 2002
Control Logic Wiring and Adapters
This chapter introduces you to components used for local
programming of the drive.
This chapter illustrates and describes:
• L Option boards L4, L5, L6, L7E, L8E, and L9E, including
terminal block TB3
• TB3 L Option mode selections and functions
• TB3 terminal designations
• The Human Interface Module (HIM)
To access these components, refer to Opening the Drive Enclosure in
Chapter 3, Access Procedures.
!
ATTENTION: Some printed circuit boards and drive
components may contain hazardous voltage levels.
Remove power before you disconnect or reconnect
wires and before you remove or replace fuses and
circuit boards. Verify bus voltage by measuring the
voltage between the Negative Capacitor Bus and both
ends of all three bus fuses. An open fuse does not show
voltage across both ends of the fuse. Failure to measure
voltage at both ends of the fuses may result in death or
serious injury. Refer to Figure 3.5. Do not attempt to
service the drive until the bus voltage has discharged to
zero volts.
Important: All printed circuit boards, except the Control Board
assembly, are referenced to the negative (–bus).
!
ATTENTION: This assembly contains parts and
sub-assemblies that are sensitive to electrostatic discharge.
Static control precautions are required when servicing this
assembly. Component damage may result if you ignore
electrostatic discharge control procedures. If you are not
familiar with static control procedures, reference
Rockwell Automation Publication 8000-4.5.2, Guarding
Against Electrostatic Discharge, or any other applicable
ESD protection handbook.
Chapter Objectives
Chapter Overview
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