FG
|
Enable
|
Enable. At 1 the mixer is enabled and
the outputs are controlled. At 0 the mixer closes the running time
and then switches off all outputs. If the input is not used, the
mixer is automatically enabled.
|
SW
|
Setpoint*
|
Flow Setpoint to which control is
executed.
|
IW
|
Actual
value*
|
Forward actual value.
|
KU
|
Cooling
|
Switch to cooling mode. In cooling
mode, the outputs are driven in reverse, if the actual value is
greater than the setpoint, the direction is set to open instead of
closed.
|
AU
|
Open
|
Output mixer open.
|
ZU
|
Close
|
Output mixer close. |
PR
|
Percent
|
0-100% output. For mixers with analog
input. The value of the internal regulator IY is added or subtracted
to this value depending on the operating mode. The addition is
executed on each rising edge at the on/off outputs, the control time
can be adjusted by the parameter gain and the PWM settings. If the
percentage output is used, the P value must be set significantly
smaller than the default value.
|
PU
|
Pump
|
Pump. A heating circuit pump can be
connected here. This is switched on with the Enable.
|
ST
|
Info
Status
|
Output is set to 1 when mixer is
active.
|
IY
|
Info
Y
|
Output of the internal regulator for
diagnostic purposes. The output goes from -255 (whole PWM time
closed) to +255 (whole PWM time open). |
IP
|
Info
PWM
|
Output of the internal PWM timer -
time until next open/close cycle.
|
Duration
|
Runtime of the mixer. If the Enable
is switched off, the mixer runs 2x the mixer runtime.
|
Gain
|
Gain for the internal regulator. With
a higher value the mixer reigns faster. Important: If the value is
too high, the mixer starts to oscillate (constantly open/close).
|
PWM Time
|
Time for an on/off cycle. Switch on
time is PWM time/255 * P regulator.
|
PWM Min. Pause
|
In this parameter a minimum pause
time can be optionally set (both outputs off). This pause is at
least maintained independently of the internal regulator.This pause
is at least maintained, even if the calculated switch-off time would
be smaller. After a cycle, the pause should be at least as long as
the flow sensor needs to report the current temperature.
|
PWM Max. Puls
|
In this parameter a maximum pulse
time can be set. The internal regulator is limited to this maximum
(maximum time for on time).
|
Hysteresis
|
Within this hysteresis the
temperature is considered to be reached and the mixer stops in the
current position. The hysteresis works in both directions, for
example, with a hysteresis of 1 the temperature is considered to be
reached within +/- 1 degrees.
|
| Offset Actual
value |
Correction actual value. This value is added to the room
temperature input. |
| Anti-blocking
function |
With this parameter the mixer is started 1x per week when enable
is 0. This is to prevent the mixer from blocking if it is not in
operation for too long. The function is started on Sunday at 0:00h.
The mixer will open/close the mixer runtime or the analog output
will be set to 0/100 percent and the pump output will be switched
on.
When the anti-blocking function is activated, status 100 + step is
output at the output.
- 101: Outputs off
- 102: Mixer open, percent to 100, pump 1
- 103: Waiting time mixer running time
- 104: Mixer closed, percent to 0, pump 1
- 105: Waiting time mixer running time
- 106: Outputs off, cycle completed.
|
Mixer simple