Samson 3730 Series - Page 194

16-6 EB 8384-3 EN
Code
no.
Parameter–Readings/
values [default setting]
Description
24* LV total valve travel
1000 to 99 · 10
7
[1.000000], ESC
Exponential reading from
9999 travel cycles on-
wards
Limit value of total valve travel. If the limit is exceeded, the and
icons are indicated.
25* Alarm mode
0 to 3, [2], ESC
Switching mode of software limit switch alarms A1 and A2 when
activated (when the positioner is initialized).
1)Explosion-protectedversionaccordingtoEN60947-
5-6
0:A1≥2.2mA A2≤1.0mA
1:A1≤1.0mA A2≤1.0mA
2:A1≥2.2mA A2≥2.2mA
3:A1≤1.0mA A2≥2.2mA
2)Versionwithoutexplosionprotection
0: A1 R=348Ω A2 Non-conducting
1: A1 Non-conducting A2 Non-conducting
2: A1 R=348Ω A2 R=348Ω
3: A1 Non-conducting A2 R=348Ω
Whenapositionerhasnotbeeninitialized,thesoftwarelimitswitch-
es always register the signal as in the state of no response.
IfthereisnomAsignalattheterminals11/12,thesoftwarelimit
switchesbothswitchto≤1.0mA(Ex)ornon-conducting(without
explosion protection).
Note: The fault alarm output always switches to ≤1.0mA/
non-conducting in case of a fault; it has ≥2.2mA/R = 348Ω when
there is no fault.
26* Limit A1
0.0to100.0%,[2.0%]of
the operating range, No,
ESC
Alarm A1 responds when the value falls below the limit.
Software limit value A1 is displayed or can be changed in relation
to the operating range.
The setting has no effect when an inductive limit switch is installed.
27* Limit A2
0.0to100.0%,[98.0%]
of the operating range,
No, ESC
Alarm A2 responds when the value exceeds the limit.
Software limit value A2 is displayed or can be changed in relation
to the operating range.