beautypg.com

ETC Alex M Alex MX User Manual

Page 9

background image

Meet Alex M

Special features

Alex M
030430-150B
Alex_M_E_150C_A5.doc

– 9 –

Special features

Thyristors

The thyristors, which use phase angle control for the
output voltage, each contain a separate ignition
circuit for the positive and negative half-waves. This
means that the output voltages of each of the dimmer
units have no DC components and makes them
suitable for controlling low-voltage transformers.

Fan

A temperature controller ensures that the fan only
ever runs just as fast as is absolutely necessary.

Emergency
shutdown

If the temperature level on the dimmer unit gets too
high (e.g. because of a blockage in the air intake),
the device is shut down automatically to prevent
damage due to overheating. Once the temperature
returns to permissible values, the dimmer unit
automatically resumes operation. The loads
connected undergo a soft restart.