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6 -
3
6.
BASE UNIT AND EXTENSION CABLE
6.2
Part Names and Settings
Part names of the base unit are shown below.
(1) Main base unit (QA1S33B, QA1S35B, QA1S38B)
No.
Name
Description
1)
Extension cable connector
A connector used to connect an extension cable, by which signals can be
transmitted to/from an extension base unit.
2)
Base cover
A protective cover for the connector for the extension cable. To extend, the area
surrounded by the groove below the OUT sign on the base cover has to be
removed using a tool such as a nipper.
3)
Module connector
Connectors used to install the power supply module, CPU modules, I/O modules,
and/or special function modules.
To prevent dust from entering, attach the supplied connector cover or a blank
cover (A1SG60) to the connector with no module installed.
4)
Module mounting screw hole Screw hole to fix a module to the base.
Screw size for CPU module: M3
12
Screw size for other than CPU module: M4
12
5)
Base installation hole
A bell-shaped hole used to install the base unit to a control panel. (For M5 screws)
6)
Hook for DIN rail
Hook for DIN rail installation.
QA1S33B ............................................................................. 1 pc
QA1S35B, QA1S38B ........................................................... 2 pcs
6)
4)
5)
2)
1)
I/O0
I/O7
I/O6
I/O5
I/O4
I/O3
I/O2
I/O1
CPU
QA1S38B
POWER
5V
SG
FG
OUT
3)