Mitsubishi FX1S Series Hardware Manual

FX1S Series Programmable Controllers Diagnostics 7
7-2
7.2 ERROR LED ON (CPU ERROR)
Table 7.2: Error LED Checks
Fault
ERROR
LED ON
Remedy
Reset PLC.
Tu r n p o w e r
OFF, then
ON and
trigger RUN
input.
Possible
results
LED OFF
Has the memory cassette been
installed or removed while the unit
was still powered On?
LED is lit
Remedy
Possible
results
LED is lit
Power OFF
Disconnect
earth/ground
terminal
LED is
flashing
Check for programming error. Ensure the earth/
ground cable is correctly rewired.
Power ON
Remedy
Possible program/scan time error.
Check D8012 for program scan time,
(units 0.2 ms must be less than 0.2
sec, i.e. - data value <2000).
Possible results
D8012 > D8000
POWER
RUN
ERROR
A
A
B
PLC M/C PLC M/C PLC M/C
&& '
B

Mitsubishi FX1S Series Specifications

General

Model	FX1S Series
I/O Points	10 to 30 points
Program Memory	2000 steps
Power Supply	AC
Communication	RS-422
Expansion	No expansion
Programming Language	Ladder Logic
Input Voltage	100-240V AC
Built-in High-Speed Counter	Up to 60 kHz (single-phase)
Weight	Approx. 0.3 kg
Dimensions	90 x 60 x 75 mm