Priority Switch / Defrosting / Manual Control; Manual Control Using A 10 Kohm Potentiometer; Test Switch - Emotron EMX- R Betriebsanleitung

2.2.3

Priority switch / defrosting / manual control

A preselected speed of rotation can be specified by a potential-free connection
between the priority inputs 34–35. When terminal 34 is connected to terminal
35, the speed is determined by the priority potentiometer, which is located next
to the DIP switches in the control unit. The priority switch has higher priority
than the summer/winter switch (only available on Model E) and the control
signal.
The switch can be used, for example, when cleaning the rotor, defrosting using
an external differential pressostat or for manual control of the speed of rotation.
2.2.4

Manual control using a 10 kOhm potentiometer

It is simple to control the drive system manually by using a 10 kOhm
potentiometer connected as shown in the figure.
Control unit
33
34
37
10 kOhm
2.2.5

Test switch

The control unit is equipped with a test switch, placed under the cover between
terminals 37 and 41. When this switch is in the "ON" position, the motor soft-
starts and the speed increases to the maximum, independently of other signal
sources. When in the "OFF" position (down), the test switch is not operational.
The test switch can also be used to run the motor at maximum speed if, for
example, an external control signal is missing.
14 Mounting/connection Emotron AB 01-3333-01r3