Lauda PROLINE P 5 C, Operating Instructions Manual

Page: 80 / 120

80 / 123 Proline heating thermostat 02/2022
Editing the control parameter sets
The change in the control parameters is explained in Section 7.13.1 / 7.13.2 (internal / external). Once the value has
been changed and confirmed, the set number, e.g.
Set 3 and Upload actual , the new value is accepted into the con-
trol parameter set to be changed (Set 3) via the command Control parameter sets .
7.14 Alarms, Warnings and Errors
The SelfCheck Assistant of your Proline Thermostat monitors more than 50 device parameters and triggers alarms,
warnings or errors as appropriate.
All warnings and alarms are shown on the Command remote control in plain text. Errors are shown in plain text on the
Command remote control in an error list.
Alarms: Alarms are safety relevant. Pump and heater unit will be shut off.
Warnings: Warnings normally are not safety relevant. The thermostat continues to operate.
Errors: When an error occurs, switch of the device. If the error is always present after switching on the de-
vice, please inform the LAUDA Service (

9.4).
Find cause of alarm or warning and rectify where necessary. Then press on the Master keyboard in order to remove
the alarm message. Warning messages can be removed either on the Master keyboard with or on the Command
board with .
Warnings may be ignored by pressing or on the Master keyboard or by activating the Screen Softkey on the
Command remote control. Otherwise warnings will be repeated periodically.
7.14.1 Overtemperature protection and checking

The units are designed for operation with non-flammable and flammable liquids to DIN EN 61010-2-
010.
Setting the overtemperature cut-off: Recommended setting: 5 °C above desired
bath temperature.
Caution! The overtemperature switch point T
max
is being controlled by a system
that works independent of the internal bath control. The setpoint setting can be
limited independently to T
max
with the functions T
ih
and T
il
(

7.8.3).

The cut-off point is displayed in the LED display on pressing the key .
Changing the overtemperature cut-off point:
 For safety, and to guard against unintentional adjustment, the key must
be held pressed during all the following entries. Now, briefly press . The
display flashes and the overtemperature cut-off can be set with the keys
or .
Overtemperature
cut-off point
90
°C