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 68 of 206
Relative
Index
Parameter Name
Description
Default
Value
Read/
Write
exceeds the entered value,
the valve moves towards the
final position which
corresponds to 100 %
reference variable.
Electro pneumatic actuators
are completely filled with air
or vented (depending on the
fail-safe position).
45 TOTAL_VALVE_TRAVEL
Accumulated valve travel in
nominal duty cycles.
0 4
46
TOT_VALVE_TRAV_LIM
Limit for the
TOTAL_VALVE_TRAVEL in
nominal duty cycles.
1000 r,w
47
TRAVEL_LIMIT_LOW
Lower limit of the valve
position in percent of travel
span. Travel span
correspondents to
OUT_SCALE. When the
position is equal or small
than this value the feedback
will set to
OUT_SCALE.EU_0.
0.2 r,w
48
TRAVEL_LIMIT_UP
Upper limit of the valve
position in percent of travel
span. Travel span
correspondents to
OUT_SCALE. When the
position is equal or bigger
than this value the feedback
will set to
OUT_SCALE.EU_100.
99.8 r,w
49 TRAVEL_RATE_DEC
Configurable time of full span
change (closing time of the
valve) in seconds. This
parameter will work similar
with the slew rate index
(VALVE_CLOSE_SLEW_LI
MIT).
Changing the value of this
parameter will automatically
change the value of the
VALVE_CLOSE_SLEW_LIMI
T parameter for a value close
with the new rate defined.
- r,w
50 TRAVEL_RATE_INC
Configurable time of full span
change (opening time of the
- r,w