3.3
Power Distribution Modules
3.3.1
Overview
Description of the Modules
MELSEC ST Series
23
ST1PSD
ST1PDD
RUN
RUN
ERR.
ERR.
SYS.
AUX.
AUX.
Front view
Rear view
쐇
쐇
Rear view
Front view
쐇
쐇
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Number Meaning
Description
쐃
LEDs
The LEDs show the operating status of the module. (refer to
chapter 3.3.2)
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Slice module fixing hooks (both
ends)
Hooks for mounting/removing the slice module to/from the base
module.
Hold down the hooks at both ends, and remove the module.
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Coding elements
Provided to prevent a wrong slice module from being inserted into the
base module. The slice module can be inserted only when the coding
element of the base module matches that of the slice module.