Check Code List - SMC Networks IP8001 Series Operation Manual

■Check Code List

Check code could be detected during calibration or parameter setting of the positioner. Table 18
shows check code which is indicated. When check code is detected, see adjustment method. Press
set button ( ＋ ) to return from check code.
Check
Check point
code
Hunting detection
0001
Span setting failure
0002
Hunting detection
0003
Table 18
Possible cause
-The actuator is too small.
-The piping is choked.
(with something such as a speed
controller. )
-Set with range narrower than set span
-Exceeded set span due to overshoot
when setting.
-Actuator size is too large
-Feedback lever angle is large
82
Countermeasure
-Switch to auto mode, change the input
current, and confirm that the actuator is
hunting. If hunting is occurring, stop it
with a PID adjustment (parameter code:
800). See "■Improved Controllability".
-Span set at the time of setting is lower
than set span range, and minimum set
span range was set automatically.
Check set value with operation setting
(parameter code:430) again. Make
adjustment of the span within set span
range.
-Change to auto mode. Change input
current to check if hunting of the
actuator occur. If it occurs, reduce
hunting by PID adjustment (parameter
code: 800). If hunting does not occur,
PID adjustment is unnecessary. See
"For better control" for PID adjustment.
Then, regardless of PID adjustment,
confirm balance current
code: C60).
No.IP8S-OM00009
(parameter