WESTLOCK CONTROLS CORPORATION
280 N. MIDLAND AVE., STE. 258, SADDLE BROOK, NJ 07663 TEL: 201-794-7650 FAX: 201-794-0913
www.westlockcontrols.com
10/5/2013
TECH-477/D.W.O. 21424
Page 38 of 206
options are
Lin
(Linear)
,
EP
(Equal Percentage)
and
Opn
(Quick Opening)
.
When Equal Percentage and Quick Opening are used the Setpoint and valve
Position will display a modified value, not the actual Setpoint sent to the ICoT
PA. For instance if Quick Opening is selected and a Setpoint of 20% is sent
to the ICoT PA the LCD will display %SP 36.9 and when it reaches position
(at 36.9% open) it will display %PS 36.9. The
Lin
(Linear)
positioner
characteristic duplicates the inherent characteristic of the valve and is the
most often used setting.
Type
This function configures the positioner for the type
of valve. The options are
rot
(Rotary)
and
lin
(Linear)
. This setting needs to be done in order to
configure the positioner to recognize the type of
magnetic feedback being given to the positioner.
This setting is shown on the left side of the LCD.
FLOP
This function allows the user to configure the positioner to match the failure
method of the valve/actuator. The options are
“off”
or
“on”
. The
“off”
option
is for fail closed applications and the “on” option is for fail open application.
When
“off”
is chosen the LCD will read 0% at the
zero
(Lo Calibration)
and
100% at the
span
(Hi Calibration)
. When
“on”
is chosen the LCD will read
100% at the
zero
(Lo Calibration)
and 0% at the
span
(Hi Calibration)
.
OPSP
This function allows for the setting of
the opening speed of the
actuator/valve. The range is 1 thru 5.
Setting 5 is the fastest opening speed
and setting 1 is the slowest opening
speed.
CLSP
This function allows for the setting of
the closing speed of the
actuator/valve. The range is 1 thru 5.
Setting 5 is the fastest closing speed
and setting 1 is the slowest closing
speed.
EDb
This feature configures the SP alarm dead-band. When the actual position is
within the setpoint by less than the dead band amount no SP alarm is
generated. The configuration options are
“off”
and
“on”
. The SP alarm is
Setting
Approx.% Dynamic Speed
5
4
3
2
1
100%
80%
60%
40%
20%
Setting
Approx.% Dynamic Speed
5
4
3
2
1
100%
80%
60%
40%
20%
