Troubleshooting - Emotron EMX Serie Manuel D'instructions

3.3

Troubleshooting

Check that the equipment has been correctly installed, i.e. that the cables are
properly stripped, that there are no loose cables, etc., and check that the DIP
switches are correctly set. Check that Control unit and motor have the correct
size, Control unit EMX-R-15S(or E) could only work with motor
EMX-R-15M and so on.
It is always possible to test run the drive system using the TEST switch located
under the cover next to terminal 37, see Fig. 5, page 15. The switch has two
fixed positions, when it is in the up position, the motor accelerates to its
maximum speed independent of the control signal, and when it is in the down
position the rotation speed is controlled by the control signal.
If the motor does not reach maximum speed or respond to the control signal,
check DIP switches 1–3 and 7 and 8. If the heat exchanger rotates in the wrong
direction, change the setting of DIP switch 6. Reset, vibration, noise and built-
in protection are described in the chapters Description and Mounting/
Connection.
If the control unit is to be exchanged, the complete covered box containing the
circuit boards must be exchanged.
22 Maintenance/troubleshooting Emotron AB 01-3333-01r3