Pump-Motor Supervision: Overload Or Blockage; Pump-Motor Supervision: Dry Running - Lauda PROLINE P 5 C Operating Instructions Manual

7.14.5 Pump-motor supervision: Overload or blockage



Pump alarm
bL0C
Command

7.14.6 Pump-motor supervision: Dry running



Pump alarm
PuLEU

Command
02/2022
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. Red LED
 Heater switches off on both poles,
 Pump unit is 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 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
ed a pump low level.
°C
3. Red LED
 Heater switches off on both poles,
 Pump unit is switched off electronically.
The cause of the failure of the level measurement with the floatation sensor must be found and rec-
tified. 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.
Proline heating thermostat
bL0C
signals blockage.
above the fault triangle
Pump-motor alarm!
PuLEU
signals that the SelfCheck Assistant has detect-
above the fault triangle
flashes.
flashes.
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