Vacuubrand MD 1 VARIO-SP User Manual download pdf (Page 39)

page 39 of 68

External setting of the motor speed via voltage input:

Voltage input: analog 0V .... 10V DC (max. 24V !)

➨ Connect the black and the white wire ac-

cordingly to the terminal board ST1B (see

table above).

0V to 10V:

Linear increase of the motor speed (0 rpm (at

0V) to 2400 rpm (at 10V))

Pump will run smoothly only at motor speeds

higher than 200 rpm.

Internal setting of the motor speed via trimming potentiometer:

+ Ensure that no control signal is applied, e.g.,

by removing the white and the black wires

from the terminal board ST1B.

+ Supply the pump with the required supply

voltage of 24V DC.

Adjusting the motor speed with the trimming potentiometer:

Turning the trimming potentiometer to the right increases the motor speed

(maximum 2400 rpm);

Turning the trimming potentiometer to the left decreases the motor speed

(minimum 0 rpm). Pump will run smoothly only at motor speeds higher

than 200 rpm.

+ To stop pump, disconnect pump from DC voltage supply.

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Vacuubrand MD 1 VARIO-SP User Manual Page 39