Table of Contents
Advertisement
LED Status
Inverters (FR-A7NC)
Master
Unit
Station 1 Station 2 Station 3
RUN
RUN
L.RUN
L.RUN
SD
SD
RD
RD
L.ERR
L.ERR
TIME
RUN
RUN
LINE
L.RUN
L.RUN
or
SD
*
SD
TIME
RD
*
RD
LINE
L.ERR
L.ERR
RUN
RUN
L.RUN
L.RUN
SD
*
SD
RD
*
RD
L.ERR
*
L.ERR
HOW TO CHECK FOR ERROR USING THE LEDS
RUN
Since the L.RUN LEDs of the FR-
L.RUN
A7NC on station 2 and later are off, the
*
SD
*
transmission cable between the remote
*
RD
*
I/O units A and B is open or
L.ERR
disconnected from the terminal block.
RUN
L.RUN
*
SD
*
The transmission cable is shorted.
*
RD
*
L.ERR
RUN
L.RUN
The transmission cable is wired
*
SD
*
improperly.
*
RD
*
*
L.ERR
*
Cause
: On,
: Off,
: Flicker, *: Any of on, flicker or off
Corrective Action
Referring to the LED "on"
condition, search for an
open point and repair.
Among the three wires of
the transmission cable,
search for the shorted wire
and repair.
Check the wiring on the
inverter terminal block and
correct the improper wiring
point.
99
9
Advertisement
Table of Contents
