Software Version C
- 122 -
optek-converter C4101 Version 07.2009_1.2US, 23.07.2009
www.optek.com
• Apart from the classic Failsafe level according to Namur
recommendations (-10 % or 110 %) the user has four other Failsafe
levels (-1.25 %, 0.0 %, 100 % und 103.1%) (e. g. when starting
filtration processes).
Fig. 126 Choosing the fault condition
4. Select and press [ENTER].
5. Save the setting. The SYSTEM SETTINGS menu appears.
When the failsafe function is triggered, the measuring result FAILSAFE is
displayed in the data logger. The "SIGNAL LOSS" error message appears in the
MEASUREMENT DISPLAY overwriting measuring results and trend charts. The
Failsafe function is triggered in case of a communication fault with the MA-11
(optek detector input board) and the IO-12 (optek mA and remote input board),
if the mA input is part of the measuring function.
Communication faults with IO-13, IO-14 or IO-16 do not trigger Failsafe.
SYSTEM SETTINGS
THE FAILSAFE FUNCTION DRIVES THE
SYSTEM UNDER FAULT CONDITION INTO
STATE - 10 %
+ 110 %
- 1.25 %
+ 103.1 %
- 0.0 %
+ 100.0 %
REJECT P01 SAVE
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