Settings,
continued
Assumption:
Example of
MIN POS / MAX POS
The parameter settings are MIN POS = 15 % and MAX POS = 65 %.
In this case:
INVERS = NO:
0 % => Minimum positioning signal DC 1.5 V
100 % => Maximum positioning signal DC 6.5 V
INVERS = YES:
0 % => Minimum positioning signal DC 6.5 V
100 % => Maximum positioning signal DC 1.5 V
When testing the wiring, note the following:
Notes on the wiring test
•
If an AOx output is inverted, it also applies to the wiring test. The following
always applies:
INVERS = NO: 0…100% corresponds to DC 0…10 V
INVERS = YES: 0…100% corresponds to DC 10…0 V
•
Adaptations with MIN POS and MAX POS are also effective with the wiring test.
Example:
MIN POS be set to 20%.
When entering 0%, the voltage at the output is not DC 0 V, but DC 2 V.
8.4
Error handling
A check identifies an available input signal after quitting the COMMIS
(commissioning) menu. Fault symbol indicates a fault on the display if the
acquired input signal later is missing due to short circuit or open circuit.
In this case, the values of AO 1 and AO 2 cannot be calculated. The values are set
to 0 (zero).
See section 5.4 on how to handle input errors.
Note
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Siemens
SEZ220 signal converter
CE1P5146en
Building Technologies
Function block 2X-INV
02.06.2008
