90
SC-F70
SC-F70
PID Operation Operating Instructions
The analog setting input signal is 100 to 105% or
-5 to 0% of the input range.
Operation is not affected but blinking continues
until the error has been corrected.
The analog setting input signal is above 105% of the
input range. Recovery operation is defined by parameter
PG08, item 1, and error code remains until the error
has been corrected. (See parameter PG08 on page 78)
The analog setting input signal is below -5% of the input
range. Recovery operation is defined by parameter
PG08, item 1, and error code remains until the error
has been corrected. (See parameter PG08 on page 78)
No AREA number has been selected. Recovery
operation is defined by parameter PG08, item 1, and
error code remains until the error has been
corrected. (See parameter PG08 on page 78)
An AREA number equal to or greater than 9 has been
selected. Recovery operation is defined by parameter
PG08, item 1, and error code remains until the error
has been corrected. (See parameter PG08 on page 78)
An error occurs with the input value during Auto-
tuning. The error message is displayed until the
DISP is pressed; operation will follow the
selection made for operation in the event of an
Auto-tuning error (See parameter PG08 on page 78).
The time for Auto-tuning execution has exceeded
the allotted time (4 hours per cycle). The error
message is displayed until the DISP is pressed;
operation will follow the selection made for
operation in the event of an Auto-tuning error (See
parameter PG08 on page 78).
The PID constant derived through Auto-tuning
exceeds the set range. The error message is
displayed until the DISP is pressed; operation
will follow the selection made for operation in the
event of an Auto-tuning error (See parameter
PG08 on page 78).
Error Code
Error Description
Action
Where
1. Check the value
set by external
contacts.
2. Go to "Area
switching external
contact problem"
on page 99.
E08
2
1. Ensure the
analog input type
is correct.
(See PG05 on
page 75)
2. Go to "External
Analog Input
Problems" on
page 100.
Analog
input value
blinks
OOOO
blinks
E09
E11
blinks
UUUU
If the same error
occurs when Auto-
tuning is executed
again, set the PID
constant manually.
See "8. PID
Constants Manual
Tuning Method" on
page 103.
E12
E13
