Mitsubishi Electric 800 Series Instruction Manual page 17

 Common terminal
Terminal
Common
symbol
Contact input common (sink
(negative common))
External transistor common
SD —
(source (positive common))
24 VDC power supply common
External transistor common
(sink (negative common))
—
PC
Contact input common (source
(positive common))
SD 24 VDC power supply
5 — Frequency setting common
SE — Open collector output common
Terminal name
Common terminal for the contact input terminal (sink logic)
and terminal FM.
Connect this terminal to the power supply common
terminal of a transistor output (open collector output)
device, such as a programmable controller, in the source
logic to avoid malfunction by undesirable current.
Common output terminal for 24 VDC 0.1 A power supply
(terminal PC). Isolated from terminals 5 and SE.
Connect this terminal to the power supply common
terminal of a transistor output (open collector output)
device, such as a programmable controller, in the sink logic
to avoid malfunction by undesirable current.
Common terminal for contact input terminal (source logic).
This terminal can be used as 24 VDC 0.1 A power supply.
Common terminal for the frequency setting signal (terminal
2 or 4). Do not earth (ground).
Common terminal for terminals RUN and FU.
Terminal function description
PRE-OPERATION INSTRUCTIONS
Rated
specification
—
1
Power supply
voltage range:
22 to 26.5 VDC
Permissible load
current: 100 mA
—
—
17