User`s manual

Base units Part names and settings
8 – 4
8.3 Part names and settings
8.3.1 Part names
Main base units Q33B-E, Q35B-E, Q38B-E, Q38RB-E, Q312B-E, Q38DB, Q312DB
E
CAUTION:
● Do not drop the parts or subject them to heavy impact.
● Do not remove the printed-circuit board of the parts from their cases.
● When drilling screw holes or wiring, cutting chips or wire chips should not enter
ventilation slits.
QH00049C
Fig. 8-1: Part names of main base units Q3B, Q3RB and Q3DB
No. Name Application
 Extension cable
connector
Connector for connecting an extension cable (for signal communications
with the extension base unit).
 Base cover Do not remove the whole cover. Before an extension cable is connected, the
area of the base cover surrounded by the groove under the word "OUT" on
the base cover must be removed with a tool such as nippers.
 Module connector Connectors for installing the Q series power supply module (two redundant
power supply modules for the Q38RB-E), up to four CPU modules, I/O mod-
ules, and intelligent function modules.
To the connectors located in the spare space where these modules are not
installed, attach the supplied connector cover or the blank cover module
(QG60) to prevent entry of dirt.
 Module fixing screw hole Screw hole for fixing the module to the base unit. Screw size: M3x12
 Base mounting hole Hole for mounting this base unit onto the panel such as a control panel (for
M4 screw)
 DIN rail adapter
mounting hole
Hole for mounting DIN rail adapter.
Tab. 8-3: Description for part names of main base units





