Flowserve Logix 1200e LGAIM0044 User Manual
Page 41
Flowserve Corporation, Valtek Control Products, Tel. USA 801 489 8611
44-41
.
NOTE: Custom characterization points can only be
entered by using ValTalk or SoftTools software. The
HART 275 handheld communicator will only allow the
user to enable or disable the currently stored custom
characterization.
Table III: Equal Percentage Curve Data
%
Command
% Control
Command
0
0.00
5
1.00
10
2.00
15
3.00
20
4.00
25
5.24
30
6.47
35
8.02
40
9.57
45
11.86
50
14.15
55
17.54
60
20.93
65
25.94
70
30.95
75
38.36
80
45.77
85
55.66
90
67.68
95
82.31
100
100.00
Table IV: Troubleshooting Logix 1200 Digital Positioner (1 of 3)
Failure or Problem
Probable Cause(s)
Refer to Section(s)
Mounting and Installation
LED does not blink
1. 4-20 mA input polarity may be
reversed
1. 4-20 mA input level may be too
low
1. Calibration is in process
page 44-31. or Wiring and
Grounding guidelines on page
44-6.
1. See overview on page 44-4.
1. See Calibration on page 44-33..
Valve moves in wrong direction with no
input signal
1. Actuator is tubed for wrong air
action
1. Spool is stuck
1. See Air Action on page 44-32.
1. See Spool Valve on page 44-35.
Unit does not respond to analog 4-20
mA command
1. Unit is in digital command mode
1. Error occurred during calibration