Power Supply And Emergency Power Supply; Protective Circuit - Monacor PA-1500D Mode D'emploi

PA-1500D
MONO CLASS D PA MIXING
AMPLIFIER
MONACOR INTERNATIONAL • ZUM FALSCH 36 • 28307 BREMEN
230 V~/50 Hz
230 V~ / 50 Hz / 1015 VA
24 V /35.5 A
GND
4
5
INPUT and only the emergency announce-
ment will be reproduced . To adjust the vol-
ume for emergency announcements, use the
separate volume control LEVEL (17) .
5.2.3 Priority relay and 24 V auxiliary voltage
When a relay or a priority switch is connected
to the terminals PRI CTL / GND (16) and the
relay or switch is closed, the internal priority
relay will also switch over . Its terminals PRIOR-
ITY RELAY (11) can be used to control further
actions, e . g . to set PA attenuators with emer-
gency priority relay to the maximum volume .
If a 24 V voltage is required for switch-
ing the emergency priority relays, the voltage
from the terminal +24 V (16), for example,
may be routed via the relay contacts .
PRI PGM FD/PRIORITY
RELAY INPUT CONTROL
OUT
OFF: FAULT
G
CTL
ON: NORMAL
24V GND
PA-6FD
LEVEL
1 2 3
ON
0 10
200 Hz
CONTACT 0dBu (0.775 V)
MAX 0.1A
MAX 1A 30 kΩ BAL SLEEP
Emergency Priority switch
priority relay
The 24 V voltage has a current rating of
100 mA and can also be used for other
applications .
5.2.4 Remote-controlled
activation /deactivation
A switch connected to the terminal strip
POWER REMOTE (7) can be used for re-
mote-controlled activation / deactivation of
the amplifier . When using the remote control
feature, make sure that the amplifier has not
been switched on with the POWER switch (3) .
5.2.5 Power supply and
emergency power supply
1) Finally, connect the mains cable provided
to the mains jack (5) first and then to a
socket (230 V/ 50 Hz) .
2) To ensure continued operation of the
amplifier in case of mains failure, connect
a 24 V emergency power supply unit (e . g .
PA-24ESP from MONACOR) to the screw
terminals 24 V⎓ (8) . For a cable length of
up to 4 m, a minimum cable cross section
of 5 mm is required .
2
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may be reproduced in any form or by any means for any commercial use.
• GERMANY
T6.3AL
POWER
REMOTE
FUSE
6 7
6 Operation
When the amplifier is switched off and mains
voltage is applied, the LED STANDBY (1) will
light up .
1) To prevent switching noise, switch on all
other units of the PA system before switch-
ing on the amplifier .
2) Before switching on the amplifier for the
first time, set the two controls LEVEL (12,
17) to zero to make sure that the initial
volume will not be too high . To switch on
the amplifier, use the POWER switch (3)
or a switch connected to the terminals
POWER REMOTE (7) . The power LED ON
will light up . During the switch-on process,
the amplifier will be muted and the LED
PROTECT will light up in addition .
PRIORITY
INPUT
3) Use the control LEVEL (12) on the left
PRI
of the input PGM INPUT (13) to set the
G
LEVEL
desired volume of the signal source . The
LED SIGNAL will light up when a specific
0 10
signal level is reached . In case of overload,
0dBu (0.775 V)
30 kΩ BAL
the red LED CLIP will light up . In this case,
turn back the volume with the control
accordingly .
4) Use the control LEVEL (17) to set the vol-
ume for important announcements fed
to the amplifier via the input PRIORITY
INPUT (18) . For this purpose, close the
priority switch (or the relay) connected to
the terminals PRI CTL / GND (16) . The LED
PRIORITY will light up .
5) To improve speech intelligibility, use DIP
switch No . 2 (14) to activate (position ON)
a high-pass filter (200 Hz) . This will sup-
press low-frequency noise .
6) To reduce the power consumption, a switch-
mode power supply unit and a class D
power amplifier have been used . To save
even more power, the amplifier can be set
to sleep mode after 10 seconds without
any input signal . To indicate this mode, the
LED SLEEP (1) will light up . As soon as there
is a signal at the input again, the amplifier
will return to normal mode . To activate
the automatic sleep mode, set DIP switch
No . 1 (14) to the lower position (ON) .
® INTERNATIONAL GmbH & Co. KG. No part of this instruction manual
500
WRMS
24 V /35.5 A
BALANCED
OUTPUTS
FUSE RATING
T40AL
40
8 9 10
PA-6FD
FAULT DETECTION MODULE
PRI PGM FD/PRIORITY PRIORITY
RELAY INPUT CONTROL INPUT
12 17
OUT PRI
OFF: FAULT
G
CTL
ON: NORMAL 24V GND
PA-6FD
LEVEL LEVEL
1 2 3
ON
0 10 0 10
0dBu (0.775 V) 200 Hz
CONTACT 0dBu (0.775 V)
MAX 0.1A
MAX 1A 30 kΩ BAL SLEEP 30 kΩ BAL
11 13 14 15 16 18

7 Protective Circuit

The amplifier is equipped with a protective cir-
cuit against overheating, overload and short
circuit at the speaker outputs . In case of over-
heating, the LED PROTECT (1) will light up .
In case of overload, short circuit or another
fault, the LED FAULT will additionally light
up . In any case, the amplifier will be muted .
If one of these LEDs lights up, switch off the
amplifier and have the fault eliminated by
skilled personnel . If the protective circuit is not
automatically reset after the fault has been
eliminated, use a thin, non-conductive object
to actuate the recessed button OCP RESET (2) .
If the fault detection module PA-6FD
(chapter 4) has not been installed, set DIP
switch No . 3 (14) to the lower position ON
(= normal); otherwise, the protective circuit
will respond .
8 Specifications
Output power
Rated power: . . . . . . 500 W
Music power: . . . . . . 650 W
THD: . . . . . . . . . . . . . . < 0 .5 %
Output voltage at
rated power: . . . . . . . . 100 V
Load impedance: . . . . ≥ 20 Ω
Audio inputs
Sensitivity: . . . . . . . . 775 mV
Impedance: . . . . . . . 30 kΩ
Connection: . . . . . . . balanced
Frequency range: . . . . 50 Hz – 18 kHz,
±3 dB
S/N ratio: . . . . . . . . . . > 100 dB,
A weighted
High-pass filter: . . . . . . 200 Hz, 6 dB / octave
Power supply
Mains voltage: . . . . . 230 V/ 50 Hz
Power consumption: . 1015 VA max .,
in sleep mode: 4 W
Emergency
power supply: . . . . . . ⎓ 24 V, 35 .5 A,
in sleep mode:
480 mA
Ambient temperature: 0 – 40 °C
Dimensions
(W × H × D): . . . . . . . . 482 × 88 × 365 mm
2 RS
Weight: . . . . . . . . . . . 9 kg
Connections: . . . . . . . screw terminals
(except for 230 V)
Subject to technical modification .
19
G
9