Dungs MPA 5111, Руководство пользователя

Страница: 32 / 70

31 … 68
30 … 68
Printed in German
y • Edition 02.14 • Nr
. 254 722
.
8 Parameters
8.7 P7x - Operation
Parameter
P7x
Designation Description Setting
P70 Duration Standard
mode
Here you can define whether the
automatic burner control should
carry out a voluntary switch-off. If
yes, define the operating time (in
minutes)
Typical settings:
0xFFFF = 65535 Continuous op-
eration / no switch-off.
1439 = 23h 59 min intermittent op-
eration.
Also other values are possible, e.g.
60 = switch-off after 1 hour.
Continuous operation (≥ 24 h) is
only possible using acontinuous
operation stick, see section 8.11
P71 Modulation degree:
new nominal value
This value can be used to define a
new modulation degree. As soon
as the automatic burner control has
recognised a new value, this param-
eter is reset to 0xFFFF (=65535).
P72 Modulation degree:
Type of modification
Defines the type of modulation de-
gree that is predefined for the op-
eration:
Setting 0: Externally, that means
only by means of one of the com-
munication interfaces to a new ab-
solute value
Setting 1: Plus / Minus, that means
via a communication interface to an
absolute value or upwards (plus) or
downwards (minus) relative to the
currently set modulation degree via
the two corresponding hardware
inputs.
Setting 2: By means of a suitable
extension module via an analogue
input to an analogue predefined
absolute value with the full range of
values, for example 0 V (0 %) to 10
V (100 %). *1
Setting 3: By means of a suitable
extension module via an analogue
input to an analogue predefined
absolute value with a limited range
of values, for example 4 mA (0 %)
to 20mA (100 %). *1
*1: The analog value is accepted as
soon as the detected modification is
> 5 % of the final value (e.g. > 1 mA
at 4...20 mA). Modifications < 5 %
are accepted only after a certain time
(see P74).
Modifications between 0% and
+0.5% are considered as "Noise" and
are eliminated.