KNF N 813.3 AN.29DC-B, Перевод оригинальных инструкций по эксплуатации и установке

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Troubleshooting Diaphragm Vacuum Pumps N 813
36 Translation of original Operating and Installation Instructions, english, KNF 121240-121506 09/19
Fault visualization on motor controller
(for pumps with brushless DC motor)
The excess of the overcurrent limit, the excess of the maximum
temperature of the motor board or the blocking of the rotor is
shown as a fault. A red LED on the BLDC motor controller signals
the cause of the fault.
Optional setting:
If desired, the motor controller can be programmed so that the
error output voltage exhibits the same characteristics as the LED.
With factory settings, only 1 or 0 are logically outputted as voltage
at the fault output.
Fig. 22: LED blinking duration according to different faults
To delete the error condition the motor has to be disconnected
from the mains.
Fault cannot be rectified
If you are unable to identify the cause of the problem, please send
the pump to KNF customer services (see last page for the ad-
dress).
1. Flush the pump (see Chapter 8.2.1).
2. Clean the pump (see Chapter 8.2.2).
3. Send the pump, together with completed Health and Safety
Clearance and Decontamination Form, to KNF stating the na-
ture of the transferred medium.