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4.7. FAIL relay
Solid state relay. It switches when:
a)
The power supply of the amplifier fails.
b) The maximum temperature set by the P.A.
Manager software is exceeded.
c) The connection in both Ethernet inputs (ETH A
and B) is lost.
d) A high impedance / open line fault is detected
in the loudspeaker line.
e) An internal communication or firmware error
is detected in the amplifier.
UP-x7ETH version 1.1
UP-67ETH, UP-127ETH,
UP-247ETH, UP-367ETH
Figure 3
Digital power unit
4.8. Loudspeaker line outputs
The loudspeaker line output is effected by means
of a transformer that has low impedance (4-8-16
ohms)
and
high
impedance
outputs.
The connection must be made between terminal
"0" and the terminal corresponding to the
selected impedance or voltage.
When working with the 50, 70 and 100 V lines, it
should be remembered that:
The loudspeakers must be equipped with a
line transformer.
The total connected power will be the sum of
the power absorbed by the loudspeakers and
this must be between 50% below and 20%
above the rated power of the amplifier.
The power absorbed by a loudspeaker with a
transformer is indicated on a 100 V line. If
the amplifier is connected to the 70 V line, it
will absorb half the indicated power, and if it
is connected to the 50 V line, it will absorb a
quarter of this power.
Total power absorbed: 60 W
Power absorbed by each
transformer: 12 W
Total power absorbed: 60 W
Power absorbed by each
transformer: 6 W
Total power absorbed: 60 W
Power absorbed by each
transformer: 3 W
(50-70-100
V)
11
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