Mitsubishi MELSEC-A series, Programming Manual

Page: 371 / 508

9 - 5
ERROR CODE LIST 9.
Table 9.1 Error Code List for the An, AnN, A3H, A3M, A3V, A0J2H, AnS, A2C, A73, A52G, A1FX and A3N board (Continue)
Error Message
Error Code
(D9008)
CPU States Error and Cause Corrective Action
"SP. UNIT
ERROR"
(Checked at the
execution of
FROM and TO
instructions)
46 Stop or
Continue
(set by
parameter)
Access (execution of to
instruction) has been made to a location
where there is not special function unit.
Read the error step by use of peripheral
equipment, and check and correct the
content of
or instruction at
that step.
"LINK PARA.
ERROR"
47 Continue (1) If a data link CPU is used to set a
master station (station number "00")
: The contents written to the
parameter area of link by setting the
link range in the parameter setting of
peripheral devices are different from
the link parameter contents for some
reason. Or, link parameters are not
written.
(2) The setting of the total number of
slave stations is 0.
(1) Write parameters again and make
check.
(2) Check setting of station numbers.
(3) When the error is displayed again, it
is hardware error.
Therefore, consult Mitsubishi
representative.
"OPERATION
ERROR"
(Checked during
execution of
instruction)
50 Continue (1) The result of BCD conversion has
exceeded the specified range (9999
or 99999999).
(2) Operation impossible because
specified device range has been
exceeded.
(3) File registers used in program
without capacity setting.
(4) Operation error occurred during
execution of the , ,
or instruction.
Read the error step using peripheral
devices and check the program at the
error step, and correct it.
(Check the specified device range, BCD
conversion, or the like.)
"MAIN CPU
DOWN" (Interrupt
fault)
AnNCPU only
60 Stop (1) instruction processed in
microcomputer program area.
(2) CPU malfunction due to noise.
(3) Hardware error of CPU module.
(1) Because the instruction cannot
be used in the microcomputer
program, remove it.
(2) Take measures against noises.
(3) Consult Mitsubishi representative.
"BATTERY
ERROR"
(Checked at
power-on)
70 Continue (1) The battery voltage has dropped to
below the specified value.
(2) The lead connector of the battery is
not connected.
(1) Replace battery.
(2) Connect the lead connector if RAM
memory or power failure
compensation function is used.
FROM TO
FROM TO
RTOP RFRP
LWTP LRDP
INT INT