SMC Networks IP8101 Series, Operation Manual

Page: 34 / 85

No.DIG-31900-OM002
33
(500) Forced fully-close/
fully-open setting
＊
6
(600) Dead band setting
Fig. 28
Dead band setting is available. Dead band setting makes the
operation near the target value gentle because the integration
time (I constant) will be cleared, and that makes stability
improved. Dead band can be set in the range between 0.0 and
10.0%. The default value at shipping is 0.0%.
Target value
Dead band (D.B)
0%
S
tr
ok
e
Time
D.B
2
Deviation
The forced fully-closed / fully-open operation can be selected by
setting ON or OFF. The default at shipping is ON. If ON is
selected, the fully-closed setting (510) (input current range
between -0.0 and 10.0%) and the fully-open setting (520) (input
current range between 90.0 to 100.0%) can be set. The default
value at shipping is (510) = 0.5%, and (520) = 99.5%.
95%
(19.2mA)
5%
(4.8mA)
0.5%
100
%
0%
100%
S
tr
ok
e
Input current
(Ex.a) Select (200) = dir when
(510) = 5.0 and (520) = 95.0
0.5%
95%
(19.2mA)
5%
(4.8mA)
100
%
0%
100%
(Ex.b) Select (200) = rvS when
(510) = 5.0, (520) = 95.0
0.5
%
0.5%
S
tr
ok
e
Input current
Fig. 27
The forced fully-close/ fully-open setting will follow the input value
(S value). The position value (P value) will have no influence on
the setting.

6: If forced fully-close/ fully-open is set for a small actuator, it may cause
a very fast actuator movement. In that case, set the forced
fully-close/ fully-open setting at OFF.