Mitsubishi Electric MELCEC Q Series User Manual page 100

6. BASE UNIT AND EXTENSION CABLE
(2)
No. Name
1) Extension cable connector
2) Base cover
3) Stage number setting switch Switch used to set the stage numbers of the extension base unit.
4) Module connector
5) Module mounting screw hole Screw hole to fix a module to the base. For M4 screws.
6) Base installation hole
7) Hook for DIN rail
Extension base unit (QA1S51B)
3)
2)
1)
A connector used to connect an extension cable, by which signals can be
transmitted to/from the main base unit or another extension base unit.
Do not remove the supplied connector cover.
A protective cover for the connector for the extension cable.
Refer to Section 6.3 for the setting procedure.
Connectors used to install 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.
A bell-shaped hole used to install the base unit to a control panel. (For M5 screws)
Hook for DIN rail installation.
QA1S51B ............................................................................. 1 pc
6) 5)
7) 4)
Description
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