Samson TROVIS SAFE 3730-6, Монтаж и эксплуатация, Страница: 141 / 184

EB 8384-6S EN 141
Annex
Code
no.
Parameter – Readings/
values [default setting]
Description
26* Limit A1 (alarm limit 1)
0.0 to 100.0 [2.0] % of the
operating range, No, ESC
The setting has no effect
when an inductive limit
switch is installed.
The valve position limit relating to the operating range.
Alarm A1 responds when the value falls below the limit.
27* Limit A2 (alarm limit 2)
0.0 to 100.0 [98.0] % of the
operating range, No, ESC
The valve position limit relating to the operating range.
Alarm A2 responds when the value falls below the limit.
28* Alarm test
Reading direction:
Standard Turned
[No] [No]
A1 1A
A2 2A
A3 3A
ESC ESC
Testing the software limit switch alarm A1 and A2 as well as the
fault alarm contact A3.
If the test is activated, the contact is switched five times.
A1/1A: Software limit switch A1 to ≥2.2 mA
A2/2A: Software limit switch A2 to ≥2.2 mA
A3/3A: Fault alarm contact A3 to ≤1.0 mA
29* Position transmitter x/ix 3)
[
ää
],
äæ
, ESC
Operating direction of the position transmitter: it indicates
assignment between travel/angle position and output signal i
based on CLOSED position. The operating range (see Code 8) of
the valve is represented by the 4 to 20 mA signal. Values
exceeding or falling below the limits 2.4 mA or 21.6 mA can be
represented. When a positioner has not been connected (set point
w less than 3.6 mA), the signal is 0.9 mA and 3.8 mA or 4.4 mA
when the positioner has not been initialized.
When Code 32 = YES, the position transmitter issues the value as
set in Code 30 during initialization or zero calibration.
When Code 32 = No, 4 mA is issued during a running autotune.
30* Fault alarm ix
3)
[No], HI, LO, ESC
Select if and how faults that cause the fault alarm contact to be
switched are also indicated at the position transmitter output.
HI ix =21.6 ±0.1 mA or LO ix =2.4 ±0.1 mA