IDEC MICROSmart FC6A Series - Page 629

FC6A S ERIES MICROS MART U SER ’ S M ANUAL FC9Y-B1722 13-21
13: T ROUBLESHOOTING
Troubleshooting Diagram 12
*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.
Is the
communication cable
connected correctly?
Call IDEC for assistance.
Make sure of correct wiring.
YES
YES
Is the input to the
RXD instruction on?
Turn on the input to the RXD instruction.
NO
NO
NO
YES
Data is not received at all
in the user communication mode.
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?