Mitsubishi Electric A173UHCPU User Manual page 42

1. SPECIFICATIONS OF MOTION SYSTEM COMPONENTS
5) 7)
No. Name
Extension cable
1)
connector
2) Base cover
3) Module connector
4) Unit fixing screw
5) Base mounting hole
6) DIN rail hooks
Emergency stop
7)
terminal
*1 : Install the supplied blind cap or blank cover (A1SG60) to prevent dust penetrating the empty
connector spaces. Failure to do so can cause malfunctioning.
(b) Main base unit (A178B-S1/S2/S3)
6)
Connects to the signal communications connector on the extension base unit with the
extension cable.
A cover for protecting the extension cable connector. When connecting to an extension
base unit, cut out the area surrounded by the groove under the word "OUT" on the base
cover with side cutters, or some other tool.
Connectors to mount the CPU module, I/O modules, and special-function modules.
Install the supplied connector cover or blank cover (A1SG60) to prevent dust
penetrating empty connector spaces.
P I/0 : Motion slot
For A172SENC, A1SY42 or MELSEC-A1S series I/O module A1SI61
S I/0 : Sequencer slot
For MELSEC-A1S series module
Screws to fix the unit to the base.
Screw size M4 12.
Slots for mounting the base unit onto the control board panel (for M5 screws)
Hooks to attach to the DIN rail.
A178B-S1/S2/S3......... 2
Terminal block to apply servomotor emergency stop.
*1
Motion slot
3)
Application
CAUTION
1 − 30
4) 2)
OUT
A178B-S2
1)
Sequencer slot