Warwick LWA 1000 Manuel du propriétaire télécharger pdf (Page 6)

PROTECTIVE CIRCUITS

Your new Warwick LWA 1000 ampliﬁer is equipped with a multitude of protective circuits to prevent it from malfunction under

inappropriate operating conditions.

Over current protection:

All ampliﬁer channels are over current protected on outputs. Current clipping is engaged when the ampliﬁer channels exceed its

speciﬁed peak current output. This can be seen as the output voltage of the ampliﬁer being clipped. If the current output of an ampliﬁer

channel exceeds its speciﬁed peak current output for a longer period of time e.g. in case of a short circuit of the output, the ampliﬁer will

be disabled (Muted) for 1000ms and automatically restart.

DC current protection:

A built-in DC protection circuit will attenuate any DC signals on the power amplier input, produced by a signal containing a DC signal.

In case of a permanent DC on the output of the ampliﬁer, the ampliﬁer will latch and power must be removed for the product to restart.

Over-/under voltage protection:

Power supply over- and undervoltage protection is implemented, which means that the power supply will enter a protection mode when

the operational off-line voltage exceeds or drops below the specied upper and lower operational off-line AC voltages. However

exceeding 265VAC for a longer period of time might damage the power supply primary side permanently.

HF protection:

A high frequency protection is implemented in order to protect the power ampliﬁer module ﬁlter components from overload. The high

frequency protection algorithm has been implemented to protect the ampliﬁer from excessive HF signals on the ampliﬁer outputs.

Excessive Temperature:

This circuit protects the power stages from malfunction by switching the device off if the temperature-regulated fan cooling proves to be

insufﬁcient and temperature of the unit is too high.

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Warwick LWA 1000 Manuel du propriétaire Page 6