Rear Panel - Dynacord PowerMate3 Owner's Manual

The Speaker Protection function provides the possibility to optimally match the PowerMate to your speaker setup.
Speaker Protection is based on a sophisticated overload protection, which is usually only found in power amplifiers of
the absolute top class. Integrated control algorithms continuously monitor the effective power (RMS) that is delivered
to the loudspeaker systems. If the set value is exceeded over an extended period of time, a subtle limitation of the power
peaks will take place to avoid thermal overload of the voice coils. For notes on the setting of this function, please refer
to page 26.
55 - AMPLIFIER INDICATORS
These indicators are to inform you about the actual operational state of the PowerMate's internal
power amplifier.
PROTECT LED
The PROTECT indicator lights when one of the PowerMate's extensive protection circuits – against thermal overload,
HF-induction, DC at the outputs, and short circuit protection – is activated. When the PowerMate is in protect mode,
the speaker outputs are muted and the amplifier inputs are short circuited to prevent the power amp from being dam-
aged.
In this case you should first check whether the ventilation louvers are blocked. Another cause could be, that you have
connected more than three 8 ohms speaker systems per power output. Please also disconnect the Speakon connectors
and check the speaker cables for short circuits. During power-on operation the PROTECT LED always lights for some
seconds, signalizing that the PowerMate's protection circuitry is operational.
LIMIT LED
The LIMIT indicator signals that you are operating the PowerMate at the internal power amp's limit. Frequent blinking
of the LED is acceptable, since the amplifier's incorporated clip limiter prevents distortion. Continuous lighting indi-
cates that you have to be aware of degradation in the outputted sound. In that case, the master level has to be reduced.
The LIMIT LED also lights if the output level is reduced because of high amplifier temperature or activated Speaker Pro-
tection (see page 26).

2.9 Rear panel

56 - M C
AINS ONNECTOR
The PowerMate receives its power supply via the lockable Mains input. Only the provided power cord may be used. Con-
nect the PowerMate only to a mains network, which corresponds to the requirements indicated on the type plate.
HINT: Press the yellow button at the plug to disconnect the power cord.
57 - POWER
Mains switch to turn the PowerMate on or off. The PowerMate is operational when the display indicates the selected
program numbers and the PROTECT LED goes off. Please make sure to set the master faders to their minimum position
or engage the STANDBY switch before switching the power on. This will save you, your audience, and the equipment
from unnecessary stress. In case additional external equipment is connected to the PowerMate – e.g. power amps, FX
units, EQs, etc. – please, proceed in the following order when switching your equipment on:
1. switch on the FX units
2. switch on the PowerMate
3
P M
OWER ATE
21