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1. SPECIFICATIONS OF MOTION SYSTEM COMPONENTS
1
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29
(2) Names and settings of parts
(a) Main base unit (A172B, A175B, A178B)
1)
3)
*1
4)5)
6)
7)
2)
Sequencer slot
Motion slot
No. Name Application
1)
Extension cable
connector
Connects to the signal communications connector on the extension base unit with the
extension cable.
2) Base cover
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.
3) Module connector
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
4) Unit fixing screw
Screws to fix the unit to the base.
Screw size M4 12.
5) Base mounting hole
Slots for mounting the base unit onto the control board panel (for M5 screws)
6) DIN rail hooks
Hooks to attach to the DIN rail.
A172B......................... 1
A175B, A178B ............ 2
7)
Emergency stop
terminal
Terminal block to apply servomotor emergency stop.
CAUTION
*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.