Monacor PA-6240 Bedienungsanleitung Seite 12

4 Installation of
Additional Modules
WARNING Additional modules must only be
installed by specialized personnel .
Prior to opening the amplifier dis-
connect the mains plug from the
socket; otherwise, you will risk an
electric shock!
If an emergency power supply unit is connected,
disconnect it from the connections 24 V⎓ (37) so
that the amplifier will be out of operation .
4.1 Connection module for PA-6000RC
For the connection of the zone paging microphone
PA-6000RC (fig . 3) available as an accessory, the
connection module supplied with the microphone
must be installed into the amplifier .
4.1.1 Installation and connection
1) Screw off the housing cover of the amplifier and
the cover (33) on the rear panel of the amplifier .
2) Connect the 3-pole line AS 903 of the connec-
tion module to the jack CN 903 of the amplifier
– see layout plan on page 48 .
3) Insert the module into the cutouts which are
uncovered when the cover is removed (33) and
screw it on .
4) Connect the black-red 2-pole line A of the am-
plifier to the jack CN 801 of the module .
However, if also the anti-feedback module
PA-6FR is installed, connect the 2-pole line A to
the jack CN 801 of the PA-6FR and the 2-pole
line AN 801 of the PA-6FR to the jack CN 801
of the connection module .
5) Connect the screened line AS 802 of the module
to the jack AN 802 of the amplifier .
6) Connect the 7-pole line AS 204 of the module
to the jack CN 901 of the amplifier .
7) If no digital message insertion PA-1120DMT is
installed, fasten the loose 10-pole line AS 4-1
of the module with cable ties in the amplifier .
Only carry out the steps 8) to 10) with the digital
message insertion PA-1120DMT installed:
8) Connect the 10-pole line AS 4-1 of the module
to the jack TO RR-100 / 600 of the insertion .
9) With the jumper MS 802 of the connection
module define if the announcement in the
memory M 6 of the PA-1120DMT can be called
via the zone paging microphone (position ON)
or not (position OFF, factory setting) . The mem-
ory M 6 can, for example, be reserved for an
automatic alarm announcement which is only to
be activated via the terminals MESSAGE FIRST
PRIORITY (28) .
10) In the amplifier set the jumper MS 2 on the front
PCB above the level control (7) for the input 3 to
the position "PRI TO PACK" . Thus, the signal of
the insertion takes 1st priority and its volume is
not attenuated by a signal of the zone paging
microphone .
4.1.2 Microphone connection and
basic setting
1) Connect the jack OUTPUT (51) of the micro-
phone to the jack INPUT of the connection
module . A short connection cable is supplied
with the microphone . The cable length between
amplifier and microphone must be 1000 m as
a maximum .
A second microphone may be connected
to the jack LINK of the module or to the jack
LINK (50) of the first microphone . For the con-
nection of a third microphone, connect its jack
OUTPUT to the jack LINK of the second micro-
12
phone . As a maximum, three microphones may
be connected . The cable length between two
microphones must not exceed 100 m .
Note: The combined XLR / 6 .3 mm jack (42) of input 2
must not be used after connection of a PA-6000RC
because it is connected in parallel to the input for
the zone paging microphone .
2) When using several microphones PA-6000RC,
set the switch TALK (49) to position PRIORITY
at the microphone or microphones which are
to take priority over the other microphones . Set
the switch to position SLAVE for the remaining
microphones . Thus, during an announcement
from a microphone with priority, no announce-
ment from a microphone without priority can
be made . (In case of microphones of the same
priority, the microphone first activated takes
priority .)
3) To obtain 2 priority for the zone paging micro-
nd
phone / s, press the button at the connection
module (position PRIORITY) . When the button
is not pressed (position SLAVE), the 4
is adjusted . An overview of all possible priorities
is given in chapter 5 .4 "Defining the priority of
the input signals" .
4) If the digital message insertion PA-1120DMT is
used, use the switch DIGITAL MESSAGE (48) to
define if stored announcements can be called
via the zone paging microphone (switch position
ON) or if they are locked (position OFF) .
5) If the inputs at the amplifier are not sufficient, a
line signal can be fed into the jacks AUX IN (52)
[e . g . background music from a CD player] . Ad-
just the output level for the microphone signal
and the signal from the jacks AUX IN with the
control AUDIO OUT (53) .
4.2 Fault detection module PA-6FD
The fault detection module PA-6FD (fig . 4) availa-
ble as an accessory is especially designed for this
amplifier . It generates a 20 kHz sine test tone which
is fed to the amplifier . It is checked at the output
HIGH IMP (25) if the test tone is present . In case
of a defect in the amplifier in which case the test
tone is not present at the output HIGH IMP, the LED
FAULT (18) lights up . Via a relay, a signal device can
additionally be activated .
4.2.1 Installation and connection
1) Disconnect the amplifier from the mains and
from the emergency power supply .
2) Screw off the housing cover of the amplifier and
remove the cover plate (30) .
3) Insert the module PA-6FD from the outside at
the place of the cover plate and screw it on .
4) Connect the 5-pole line B of the amplifier to
the jack CN 601 of the module, see layout plan
on page 48 .
5) Connect the negative contact of the connection
HIGH IMP (25) at the amplifier to the contact
COM of the screw terminal Line In (62) at the
module and the positive contact of HIGH IMP
to the contact HOT of Line In .
6) Connect the jumper SW 1 on the monitoring
module to position ON .
7) If a fault is recognized by the module, the LED
FAULT (18) lights up and the relay contacts (61)
close . For alarm triggering, a signal device
may be connected to the contacts . The rating
of the relay contacts is 1 A at ~ 120 V max . or
⎓ 24 V max .
Note: The relay contacts also close when the ampli-
fier is switched off .
4.2.2 Calibration
An oscilloscope or a voltmeter is required which
is able to measure alternating voltage up to
20 kHz min .
1) Switch on the amplifier and turn the volume
control MASTER (17) to zero so that only the
20 kHz test tone is present at the speaker out-
puts .
2) Measure the voltage of the 20 kHz test tone at
the connection HIGH IMP (25) and adjust it to
~ 2 V (5 .6 V ) with the trimming control OSC
pp
Level (64) .
3) Turn up the trimmer potentiometer Sensitivity
(65) until the LED "Sense" (63) lights up . From
this position, turn the potentiometer to the scale
mark after the next . The LED may flicker during
operation; this is not a fault .
4) After the calibration, set the control MASTER to
the desired volume again .
4.3 Fault monitoring module PA-6FM
priority
th
The fault monitoring module PA-6FM (fig . 5) avail-
able as an accessory is especially designed for this
amplifier . Via the three relay outputs (66) signal
devices can be activated in case of the following
faults:
The relay contacts AC switch over if no mains volt-
age is present, if the internal mains fuse has blown,
or if the mains switch (19) is not in the position ON .
The relay contacts DC switch over if the fuse (38)
for the emergency power supply has blown or if
no voltage from an emergency power supply unit is
present at the connections DC POWER (37) .
The relay contacts FAN switch over if the internal
fan is defective or if it is not connected .
Note: All relay contacts also switch over when the am-
plifier is switched off .
1) Disconnect the amplifier from the mains and
from the emergency power supply .
2) Screw off the housing cover of the amplifier and
remove the cover plate (29) .
3) Insert the module PA-6FM from the outside at
the place of the cover plate and screw it on .
4) Connect the 6-pole line C of the amplifier to
the jack CN 5 of the module, see layout plan
on page 48 .
5) Connect the signal devices for alarm triggering
to the relay switching contacts (66) . The imprint
on the module shows the contact position in
case of fault and with the amplifier switched off .
The rating of the relay contacts is 1 A at ~ 120 V
max . or ⎓ 24 V max .
4.4 Anti-feedback module PA-6FR
The anti-feedback module PA-6FR (fig . 6) available
as an accessory is especially designed for this ampli-
fier . The signal of input 1 is routed via the module
and increased in frequency (2, 4, 5 or 6 Hz can be
adjusted) . Due to the frequency shift, an optimum
protection against acoustic feedback is reached .
4.4.1 Installation and connection
1) Disconnect the amplifier from the mains and
from the emergency power supply .
2) Screw off the housing cover of the amplifier and
the cover (32) on the rear side of the amplifier .
3) Insert the module into the cutouts which are
uncovered when the cover is removed and screw
it on .
4) Connect the 2-pole line AN 702 (black-brown)
of the amplifier to the jack CN 702 of the
module, see layout plan on page 48 .
5) Connect the black-red 2-pole line A of the
amplifier to the jack CN 801 .