Eamlab Element 302 User Manual - page 6
6
Function and protection
Ready to Power on
After
making
all
connections
correctly we are ready to turn on
the
amplifier.
You just made, the amplifier
performs some set in the reset to
ensure a safe operation, this is true
both
in
power-on
switch-off.
As sometimes happens the major
problems of high power amplifiers
take over at power on or power
down.
Our amplifiers HA series are
designed not to lie in this
unfortunate
situation.
Pressed the power switch on the
front panel, the two LEDs ILP
TM
(see
fig. A) will flash for about 3 seconds
and then stay on steady. These LEDs
indicate the operating status of the
protections that serve different
functions listed below:
ILP
TM
(intelligent lock power):
At Power on:
1 - connect the speakers out after
about
3 seconds (delay antibump). The
LEDs become fixed after about 3sec.
2- resets the parameters of current
and voltage of the output stages to
ensure maximum efficency
3- immediately disconnects the load in case
of failure of the transistors
4 - disconnect the load in the event of a
short circuit on the output stages
5 - disconnect the load in the event of a
short circuit on the power cables
6 - disconnect the load in the event of
prolonged clipping without damaging the
speakers.
At the power off
1-
immediately disconnects the outputs
from the load
If the LEDs flash always
:
In remote eventually that something can
impair circuit ILP
TM
quickly intervene
immediately disconnecting the load and
blocking the amplifier. The LED or two LEDs
(the 2 channels have 2 independent circuits
ILP) will flash warning that something went
wrong during the operation.
note: the circuit ILP
TM
also intervenes when
the DC output offset should increase
coming from the parameters set in the
factory.