Samson TROVIS 3730-1, Translation Of Original Instructions

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16-2 EB 8484-1 EN
Annex A (configuration instructions)
Code Reading/values Description
P5 Nominal range
[MAX]
The possible adjustment range can be selected in steps of 0.5 mm
depending on the selected pin position:
17 From 3.5 to 17.5 mm , alternatively MAX
25 From 5.0 to 25.0 mm , alternatively MAX
35 From 7.0 to 35.0 mm , alternatively MAX
50 From 10.0 to 50.0 mm , alternatively MAX
70 From 14.0 to 70.0 mm , alternatively MAX
100 From 20.0 to 100.0 mm , alternatively MAX
200 From 40.0 to 200.0 mm , alternatively MAX
300 From 60.0 to 300.0 mm , alternatively MAX
For 90° Maximum range only, if P4 = 90°
(MAX = Maximum possible travel)
Î
Positioner needs to be re-initialized after changing the
parameter setting.
P6 Characteristic
[0] to 8
Characteristic selection (see section 16.2):
0, 1, 2 for globe valves, 0 to 8 with rotary actuators ( P4 = 90°)
0 Linear
1 Equal percentage
2 Reverse equal percentage
3 Butterfly valve, linear
4 Butterfly valve, equal percentage
5 Rotary plug valve, linear
6 Rotary plug valve, equal percentage
7 Segmented ball valve, linear
8 Segmented ball valve, equal percentage
P7 Set point
[4-20]/SRLO/SRHI
4-20 : normal operation with 4 to 20 mA
For split-range operation
SRLO : low range 4 to 11.9 mA
SRHI : high range 12.1 to 20 mA
P8 Direction of action w/x
[>>]/<>
Direction of action of the set point w to the valve position x:
>> (increasing/increasing) or <> (increasing/decreasing)
P9 Gain K
P
25/[50]/75/100
On initializing the positioner, the gain is set to the selected value.
SAMSONWe recommend the following setting:
K
p
= 25: Actuator size 120 cm²
K
p
= 50: Actuator size >120 cm²
K
p
= 75: Actuator size ≥355 cm²
K
p
= 100: Actuator size ≥1400 cm²
If the positioner hunts, the K
p
value can be reduced. Alternatively,
use a screw restriction.