Firmware V1.4
20.05.2021
26/113
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Setpoints
Parameter
in LDSWin *
Description
Value
range
Default
value
Details see
Visualisation in LDSWin - HT / LT / Power Signal Setpoints
External
power signal
Button for switching between external power signal and internal calculation.
EXT: external power signal.
INT: Calculation of the internal power signal based on the setpoint and the flow and return
temperatures.
ON /
OFF
ON
Details see
Visualisation in LDSWin - WRG 3010 E
Spread
Spread between flow and return temperatures.
The pump adjusts its speed to this value.
2..70 K
7 K
Pump min
Minimum speed of the pump
0..100 %
20 %
Pump max
Maximum speed of the pump
0..100 %
100%
Limit temp.
Flow max
Maximum flow temperature
Note:
The maximum flow temperature should be at least 5 K greater than the flow temperature
setpoint.
Approaching below 5 Kelvin leads to throttling of the internal power signal LT.
Exceeding this limit causes the hot gas valve to close.
0..80 °C
40 °C
Limit temp.
Return max
Maximum return temperature
Note:
The maximum return temperature should be at least 5 K greater than the return temperature
setpoint.
Approaching below 5 Kelvin leads to throttling of the internal power signal LT.
Exceeding this limit causes the hot gas valve to close.
0..80 °C
30 °C
LT plate
active
Button for deactivating the LT heat exchanger.
OFF: heat recovery is deactivated. (pump off, hot gas valve closed)
ON: heat recovery is activated.
The difference to the "LT present" button is that the heat recovery can be deactivated,
but all monitoring functions and the visualisation are active.
YES /
NO
YES
Details see Visualisation in LDSWin - HT / LT / Power Signal Setpoints
available
Button for selecting the LT heat recovery.
YES: the heat exchanger and its peripherals (pump, hot gas valve, temperature sensors) are
available.
NO: the heat exchanger and its peripherals are not available.
If this button is set to "Off", all visualisation elements concerning the LT circuit are
hidden and all associated alarms are suppressed.
YES /
NO
NO
Pump
controller Kp
Used for setting the Kp of the speed controller of the pump.
0,01..10
1
Pump
controller Tn
Used to set the Tn of the pump's speed controller.
1..32767
s
30 s
Locking
period
Specifies the lockout time for how long the heat exchanger LT remains disabled after it has been
switched off due to a lack of heating power.
0..600
min
15 min
Pressure
transmitter
Button for selecting the pressure transmitter in the water circuit.
YES: a pressure transmitter is available, there is monitoring for wire break.
NO: no pressure transmitter available.
YES /
NO
NO
SW return LT
at 15 °C
Setpoint for internal power calculation.
Note:
Observe the maximum return temperature, see "Maximum return temperature" above.
20..80
°C
20 °C