21
5 Commissioning
5.1.10 Deactivate Firing Rate Control Unit
Select parameter no.790 (type of burner firing rate controller).
NOTICE
These parameters (P 356 - P 359, P 366, P 367, P 427, P 774, P 775 P 785, P 790, P 833)
must be adjusted to the system before commissioning. Further parameters which, although
you can alter them, only need to deviate from the standard setting in exceptional cases, are
given below.
5.1.11 Running Time of the Regular Firing Rate Input with TPS-Input
Select parameter no. 718.
If the firing rate default is not provided by TPS signal, the parameter must be set to „0“
Nr. FMS ETA Short Text Description Min Max Default
790 1 1 Lasttyp Type of output regulator. 0-OFF / 1-constant regulator /
2-weather-controlled regulator
0 3 0/1
Switch on or set the type of internal firing rate controller
0 = OFF
1 = constant control
2 = control by atmospheric condition 1
3 = control by atmospheric condition 2
For ETAMATIC, P 809 selects from which input the
actual value signal should be taken. If the parameter is
set to 1, the integrated PT100 input is used, otherwise
the firing rate input.
If the ETAMATIC uses the PT100 input as the actual
value signal for the internal firing rate controller, you
may deactivate the firing rate controller with a bridge
between terminals 19 and 20. The firing rate input
occurs via terminals 3-6.
Nr. FMS ETA Short Text Description Min Max Default
718 1 1 Laufz L Running time in digit/min.. for TPS firing rate input (in
digit/min)
0 1200 0/500
Here, it would be preset on how fast the signal of the
external firing rate should change if the firing rate input
is provided via the TPS signal.
With the TPS signal, external firing rate would be gener-
ated through a counter which counts up or down
depending on the contact.The speed of the counter
would be set through these parameters. Preset values
are in points per minute. Set the parameter to 0, if the
firing rate input is not TPS. .
With manual mode the default firing rate is treated as
TPS firing rate via redundant feedback channel 2, in
case TPS firing rate (P 718 not equal to 0) is configured.
0 = default firing rate current or potentiometer
500 = default firing rate TPS