Operation Manual

11. Operation and performance
24
D SERIES Lake Operation Manual rev 3.0.1
PAL activity is shown by PSU amber LED indication and a corresponding text description in Lake Controller and
CAFÉ software programs. Refer to Section 14.1 for more information on warnings and faults.
•
•
allows current above the threshold to pass for a short time, leading to an increased modeled temperature. For
the limiter to disengage, the current must reduce below the threshold to enable the breaker to cool down.
•
momentarily allows current above the threshold for a longer time, leading to an increased modeled temperature.
ed current for the breaker to cool down.
predict the current consumption, with the exact speaker requirements, and propose a safeguarding
The larger D Series devices (not D 20:4L and D 10:4L) are equipped with an under voltage limiter. With multiple,
powerful devices on a mains distribution line, heavy current loads risk the reduction of voltage below that
required for devices to function. The UVL reduces the mains current draw when voltage drops below 80 V.
The amount of reduction applied increases as mains voltage drops towards 65 V; at 65 V the power supply is
automatically restarts.
The Current Average Limiter (CAL) monitors the RMS current drawn from each power output channel to ensure
that the power output stages are not overloaded. When activated, it regulates the current to a safe level to
protect the channel. The CAL should not be activated in normal usage. If activated, this is shown by amber or red
indication on the Amp LE
D of the affected output channel and a corresponding text description in Lake Controller
and CAFÉ software programs. Refer to Section 14.1 for more information on warnings and faults
11.3.4. Breaker Emulation Limiter (BEL™)
11.3.5. Under Voltage Limiter (UVL™)
11.3.6. Current Average Limiter (CAL™)
The BEL models the temperature in the external breaker and limits the mains current to prevent the breaker
be selected for Frame Replace support). The desired nominal current value can be set from 1 to 32 Arms. The
resulting
is set above, or bellow, the model’s capabilities, the actual current is automatically adjusted into
:
models
the