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Input Terminals
1.8.3
Control circuit common terminals (SD, SE)
Terminals SD and SE are both common terminals (0V) for I/O terminals and are
isolated from each other.
Terminal SD is a common terminal for the contact input terminals (STF, STR, RH, RM,
RL, SQ).
Terminal SE is a common terminal for the open collector output terminals (RUN, ALM).
1.8.4
Signal inputs by contactless switches
If a transistor is used instead of a contacted
switch as shown on the right, the input
signals of the inverter can control terminals
STF, STR, RH, RM, RL, SQ.
REMARKS
•When using an external transistor connected with the external power supply, use terminal PC
to prevent a malfunction from occurring due to a leakage current. (Refer to page 12.)
•Note that an SSR (solid-state relay) has a relatively large leakage current at OFF time and it
may be accidentally input to the inverter.
External Signal Input
by Transistor
18
+24V
STF, etc.
Inverter
SD
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