Pump-Motor Supervision: Overload Or Blockage; Pump-Motor Supervision: Dry Running - Lauda PROLINE Kryomats RP 4050 C Operation Manual

7.12.5 Pump-motor supervision: Overload or blockage



Pump alarm
bL0C
Command

7.12.6 Pump-motor supervision: Dry running



Pump alarm
PuLEU

Command
03/2022
 The SelfCheck Assistant monitors the Varioflex pump:
1. Alarm sounds as dual-tone signal for pump-motor overload or blockage.
2. Display of
°C
3. The red LED
 Heater switches off on both poles,
 Pump and refrigerating unit are switched off electronically.
 Find the cause of the fault. Perhaps the viscosity of the heat transfer liquid is
too high or the pump is blocked.
 Press the Enter key.
 Also press this key if the unit has been switched off in the fault state.
Pump-motor alarm!

Pump-motor alarm is shown in the display and signifies that unlocking is

only possible on the Master control panel.
 The SelfCheck Assistant monitors the Varioflex pump:
1. Alarm sounds as dual-tone signal when the pump runs without liquid. This
can only occur when the float level measurement has failed.
2. The display of
detected a pump low level.
°C
3. The red LED
 Heater switches off on both poles,
 Pump and refrigerating unit are switched off electronically.
 The cause of the failure of the level measurement with the floatation sensor must be found and
rectified. Perhaps foreign bodies in the bath block it.
 Press the Enter key.
 Also press this key if the unit has been switched off in the fault state.
 Alarm! Low level (pump)
Alarm! Low level (pump) is shown in the display and signifies that unlocking

is only possible on the Master control panel.
bL0C
signals blockage.
above the fault triangle
PuLEU
signals that the SelfCheck Assistant has
above the fault triangle
Proline Kryomats
flashes.
flashes.
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