No.IP8S-OM00009
34
(500) Forced fully-close/
fully-open setting
*6
(600) Dead band setting
Fig. 29
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
o
ke
Time
D.B
2
Deviation
(on) and (oFF) of forced fully-close / fully-open setting can be set
independently for fully-close side and fully-open side. (on) is set
for fully-close setting and fully-open setting for the default value at
ex-factory. 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. 28
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.
