Hitachi IR.Station Hardware Manual page 26

3 NAMES AND FUNCTIONS OF EACH PART
Names and Functions
No. Name
① Power indicator
(POWER)
② Voltage check terminal
(5 VDC)
③
Voltage check terminal
(GND)
④ Power switch
(POWER)
⑤ Power supply terminal block
(H, N)
⑥ Line filter ground terminal
block (LG)
⑦ Frame ground terminal block
(FG)
Lights on while the power switch is ON.
Voltage check terminal for 5 V output.
(Do not use this terminal for purposes other than voltage checkout.)
0 V reference terminal for voltage checkout.
(Do not use this terminal for purposes other than voltage checkout.)
Issue or cut off the input power supply of the module.
LQV000 Connects the 100 VAC input power supply to the power
supply module.
LQV020 Connects the 24 VDC input power supply to the power
supply module.
LQV100 Connects the 100 VAC or 100 VDC input power supply to
the power supply module.
Ground terminals for the power supply line filter. Earth the unit at the
power supply side.
This terminal is to be connected to the frame ground (FG) of the I/O unit
or ground assembly plate.
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Function