5/12/2017
TECH-538/D.W.O. 23160
Page 85 of 189
Deviation Deadband
Path:
“Device Diagnostics” menu -> “4-Others“
Figure 8-39 – Deviation Deadband function
The deviation deadband used to trigger the deviation alert. It can be enabled (“on”) or disabled (“off”) using the
parameter
XD_ALERT_ENABLE
The deadband is calculated using the current position value ± half the deadband
value. For instance, if the current position is 25% and the deadband is set to 1%, the position will be OUT of the
deadband region if it is equal or greater than 25.5%. In the lower side, the position will be OUT of the deadband
region if it is equal or lower than 24.5% (i.e. 25% ± 0.5%).
How to find the Configuration options in the Transducer Block
The functions available in the EDD menus for configuration of the positioner´s parameters also have their
equivalents available in the Transducer block as shown in the
(See the Section 11.4.3 to have more
information about the Transducer block parameters present in the
).
Table 18:
Positioner´s parameters configuration available in the EDD menus and in the Transducer block
EDD menus
Transducer block parameter
Characterization
CHARACTERIZATION
Actuator Type
ACT_TYPE
Flop Enable
FLOP_ENABLE
Valve Open Slew Limit
VALVE_OPEN_SLEW_LIMIT
Valve Close Slew Limit
VALVE_CLOSE_SLEW_LIMIT
Deviation Deadband (Edb)
Edb On-Off
DEVIATION_DEADBAND
XD_ALERT_ENABLE
22
This parameter may not be available in all revisions of the ICoT EDD.
