Limiting Heating And Cooling - Lauda IN 550 XT FC Operation Manual

Entering the offset value
Activating an offset source
6.7

Limiting heating and cooling

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1. Select the [Diff. set/actual] button in the setpoint offset menu.
The entry window appears. An offset value can be entered within
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the limits displayed.
2. Enter the setpoint offset.
3. Press the [Enter key] to confirm.
4. The software returns to the previous Setpoint offset menu.
You can activate or deactivate the value entered for the setpoint offset
of a corresponding source using the options in the [Offset source] menu.
[External Pt100], for example, allows you to activate the setpoint offset for
the external temperature probe.
1. Select the [Offset source] button in the Setpoint offset menu.
2. Select one of the following options:
Select [Off] to deactivate the offset source.
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Activate an offset source from the remaining options:
[Extern Pt100]
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[Extern analog]
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[Extern serial]
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[Extern USB]
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[Extern Ethernet]
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[Extern EtherCAT]
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[Extern Pt100-2]
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3. Press the [Enter key] to confirm.
4. Press the [ESC] softkey to switch to the home window.
The maximum heating power or max. cooling capacity can be limited using
the controller output limit. The limit is set as a percentage of the maximum
value.
The controller output limit for the heating output is designed to prevent
excessive temperatures on the surface of the heater. Excessive heater tem-
peratures may degrade the heat transfer liquid.
1. Press the [Enter key] to open the menu.
2.
Select the menu items  Setup  Control  Cont.outp.limit.
3. Select [Max. heating] and press [OK] to confirm.
An entry window appears. The controller output limit can be set to
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a value within the limits displayed.
4. Change the value accordingly.
5. Press the [OK] button to return to the previous screen with the new
setting configured.
The new setting is active.
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Integral process thermostats with flow control unit V4