IDEC MICROSmart FC6A-C24R1CE - Page 627

FC6A S ERIES MICROS MART U SER ’ S M ANUAL FC9Y-B1722 13-19
13: T ROUBLESHOOTING
Troubleshooting Diagram 10
*1 See "The Power LED [PWR] is not On" on page 13-11 or "The Run LED [RUN] is not On" on page 13-12.
When the power LED [PWR] and the run LED [RUN]
do not turn on
*1
Are the power LED [PWR] and the
run LED [RUN] on?
Is the
communication cable
connected correctly?
Call IDEC for assistance.
Make sure of correct wiring.
YES
YES
Is the input to the
TXD instruction on?
Turn on the input to the TXD instruction.
NO
NO
NO
YES
Data is not transmitted at all
in the user communication mode.