Samson 3730-2 Mounting And Operating Instructions page 76

Code list
25* Alarm mode
0 to 3 [2]
ESC
26* Limit value A1
OFF
0.0 to 100.0 [2.0] % of the
operating range
ESC
27* Limit value A2
OFF
0.0 to 100.0 [98.0] % of the
operating range
ESC
Alarm test
28*
Reading direction:
Standard
[OFF]
RUN 1
RUN 2
RUN 3
ESC
76
EB 8384-2 EN
Switching mode of software limit switches alarm A1 and A2 in
responding state (when positioner initialized).
1) Explosion-protected version according to EN 60947-5-6
0: A1 ≥ 2.1 mA
1: A1 ≤ 1.2 mA
2: A1 ≥ 2.1 mA
3: A1 ≤ 1.2 mA
2) Version without explosion protection
0: A1 R = 348 Ω
1: A1 Non-conducting A2 Non-conducting
2: A1 R = 348 Ω
3: A1 Non-conducting A2 R = 348 Ω
When a positioner has not been initialized, the software limit
switches 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 ≤ 1.2 mA signal (Ex) or non-conducting
(without explosion protection).
Note! The fault alarm output always switches to ≤ 1.2 mA/
non-conducting in case of fault; it has ≥ 1.2 mA/R = 348 Ω when
there is no fault
Alarm A1 goes into the state of response when the value exceeds
the limit.
Displaying or changing the software limit value A1 in relation to
the operating range.
Setting has no effect when an inductive limit switch has been in-
stalled.
Alarm A2 goes into the state of response when the value falls
below the limit.
Displaying or changing the software limit value A2 in relation to
the operating range.
Testing the software limit switches alarm A1 and A2 in addition
to the fault alarm contact A3.
If the test is activated, the respective limit switches five times.
Turned
RUN1/1 RUN: Software limit switch A1to ≥ 2.1 mA
[OFF]
RUN2/2 RUN: Software limit switch A2 to ≥ 2.1 mA
1 RUN
RUN3/3 RUN: Fault alarm contact A3 to ≤ 1.2 mA
2 RUN
3 RUN
ESC
A2 ≤ 1.2 mA
A2 ≤ 1.2 mA
A2 ≥ 2.1 mA
A2 ≥ 2.1 mA
A2 Non-conducting
A2 R = 348 Ω