Fuji Electric Micro-Controller X Socket type - Page 76

74
Troubleshooting
Symptoms Causes Remedies
Reference
pages
“Err” has been
displayed.
The value of [P-SU] is set to 3277°C
or more for thermocouple and
resistance bulb input.
Set the parameters of [P-SL] and [P-SU]
again according to the input range table.
Page 43
The measured range ([P-SU] to [P-SL])
is set to 10000 or more for voltage and
current input.
Set the parameters of [P-SL] and [P-SU]
again so that the measured range is 9999
or less.
Page 43
A decimal point has
not been displayed.
“0” is set in the parameter of [P-dP]. Set the parameter of [P-dP] to “1” to
“3”.
Page 45
The SV or the set
values of some
parameters have been
changed without any
operation.
The parameter of [P-SL], [P-SU],
or [P-dP] was changed.
Set all the parameters again.
(
If you change [P-SL], [P-SU], or
[P-dP], the setpoints of the parameters
of which measurement range is the
industrial value (those shaded in
the Parameter List) automatically
change.)
Page 15
to 18
When the set value of [P-SU] is larger
than 1000, “1” is registered for [P-dP].
Set [P-dP] to “0”, and return [P-SU]
to an original value.
Page 45
Page 43
ON/OFF (2-position)
control has not
function properly.
Other than “oNoF” is set in the
parameter of [CtRL].
Set the parameter [CtRL] to “oNoF.” Page 36
The setpoint of the parameter [P] is
“0.1” or greater.
Set the parameter [P] to “0.0.” Page 30
ON/OFF (2-position)
control has not
function properly.
The set value of parameter [HyS] is
not correct.
Adjust the set value of parameter
[HyS] to be suitable for the device to
be controlled.
Page 32
The setting of parameter [oNoF] is
not correct.
Set the parameter [oNoF] correctly. Page 40
The Micro-controller
is not controlling
properly.
The set values of the parameters [P],
[i], and [d] are not correct.
Perform the auto-tuning. Page 25
The cycle times are too long. Decrease the set value of the
parameter [tC] gradually.
Page 41
Output is limited. Set the parameters of [PLC1] and
[PHC1] again to be suitable for the
process.
Page 62
Output is not limited correctly. Set the parameters of [PCUt] again to
be suitable for the process.
Page 63