Bacharach MGD-100 Quick Installation Manual - page 2
World Headquarters
621 Hunt Valley Circle
New Kensington, PA 15068 USA
Phone: 724-334-5000 • Fax: 724-334-5001
Toll Free: 1-800-736-4666
Website: www.MyBacharach.com
E-mail: help@MyBacharach.com
5: WIRING
1: Strip 0.2 to 0.25 inches (5 to 7 mm)
of wiring insulation.
2: Connect the wires as indicated.
SHIELD WIRE WARNING: Con-
nect the shield of the power wires
to the earth ground of the central
control system (e.g., chassis,
ground bus bar, etc.).
WARNING: The mains power supply
cable should be of an approved type
based on local regulations. Connec-
tion to the mains power supply
must be made via an approved,
readily-accessible, switched and
fused plug and socket (or as per
local wiring regulations) which
should be within 10 feet (3 meters)
of the control unit.
CABLE OPENINGS: The metal IP51 controller
housing provides a number of PG7 openings for
cable glands or plugs. Each MGD-100 IP41 transmit-
ter will have a single opening for an M20 cable
gland, as well as an optional knockout opening.
Each MGD-100 IP66 tranmitter has 3 openings
These openings can be used for field wiring, direct
attachment of a sensor or wiring of a remote
sensor. Unused openings must be closed with a
suitable plug and gasket, maintaining the IP or Ex d
rating.
114A Georges Street Lower
Dun Laoghaire • Co Dublin • Ireland
Phone: +353 1 284 6388 • Fax: +353 1 284 6389
NOTE: To make wiring connections,
you must first open the MGD-100
housing. The enclosure lid of the IP66
housing has four captive screws.
NOTE: After wiring is completed,
carefully re-assemble the enclosure
and its components, noting the
keyed ribbon cable and sensor
connectors. After installation is
complete, be sure to refer to the
User Manual (part number 6109-
9000) for detailed instructions on
registering the sensors and configur-
ing the MGD-100 for proper opera-
tion.
Controller PCB
Volt Free
Alarm
Relay
RV
1
Mains
Power
Fail Safe Jumper Setting:
OFF
ON
OFF: High Relay Is Energized
On Alarm (Energized on High
Alarm Condition)
ON: High Relay Is Normally
Energized (De-energized on
High Alarm or Mains
Failure Condition)
Tr
ans
former
Channe
l 1
Channe
l 2
(Op
tional)
SENSOR 1
ON
OFF
SENSOR 2
ON
OFF
FAIL
SAFE
ON
OFF
HIGH
Relay
NC C
OM NO
MAINS
12V
Fuse 2
Fuse 1
Aud
ible
A
la
rm
Buzzer
KEY
RED
RED
Cha
n 1
Al
arm LED
Cha
n 2 Alm
LED (
Op
t.)
GRN
Controller PCB
High Alarm
Relay
(Volt Free)
RV
1
SC
SENSOR
Fail Safe Jumper Setting:
OFF
ON
OFF: High Relay Is Energized
On Alarm (Energized on High
Alarm Condition)
ON: High Relay Is Normally
Energized (De-energized on
High Alarm or Mains
Failure Condition)
Tr
ans
former
Channe
l 1
Channe
l 2
(Op
tional)
SENSOR 1
ON
OFF
SENSOR 2
ON
OFF
FAIL
SAFE
ON
OFF
HIGH
Relay 2
NC C
OM NO
MAINS
12V
Fuse
2
Fuse
1
Aud
ible
A
la
rm
Buzzer
LO
W
Relay 1
NC C
OM NO
KEY
RESET
RED
RED
YEL
YEL
Cha
n 1 Ala
rm LEDs
Cha
n 2 Alm LEDs (
Op
t.)
GRN
Low Alarm
Relay
(Volt Free)
Mains
Power
RED
RED
RED
RED
RED
RED
Chan 1
Alarm LED
Chan 2
Alarm LED
Chan 3
Alarm LED
Chan 4
Alarm LED
Chan 5
Alarm LED
Chan 6
Alarm LED
GRN
SENSOR 1
SENSOR 2
SENSOR 3
SENSOR 4
SENSOR 5
SENSOR 6
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
NC COM NO
High Relay
+ 12V -
- SIREN +
PSU
KEY
FAIL SAFE
ON
OFF
RV1
To Lid
Ground
Connection
Base
Gr
ou
nd
Con
ne
ction
Repeat for sensor
channels 3 through
6 as required.
Relay
Output
Fail Safe
Jumper Setting:
OFF
ON
OFF: High Relay Is
Energized On Alarm
(Energized on High
Alarm Condition)
ON: High Relay Is
Normally Energized
(De-energized on
High Alarm or Mains
Failure Condition)
Sensor Enable
Jumper Settings:
OFF
ON
OFF: Sensor is
disabled for this
channel
ON: Sensor is
enabled for this
channel
Ensure that connections 1 to 4
on each sensor connect to their
corresponding numbers on the
terminal block in the main
alarm unit, otherwise the
system will not function
correctly and could be
damaged.
Fuse
MAINS
12V
50/60Hz
Fuse
REPLACE FUSE
WITH M205
T2AL250V
Mains
Power
Horn
(12 VDC, 200 mA Max)
Key
Switch
Fuse
MAINS
12V
50/60Hz
Fuse
REPLACE FUSE
WITH M205
T2AL250V
RED
RED
RED
RED
RED
RED
Chan 1
Alarm LEDs
Chan 2
Alarm LEDs
Chan 3
Alarm LEDs
Chan 4
Alarm LEDs
Chan 5
Alarm LEDs
Chan 6
Alarm LEDs
YEL
YEL
YEL
YEL
YEL
YEL
GRN
SENSOR 1
SENSOR 2
SENSOR 3
SENSOR 4
SENSOR 5
SENSOR 6
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
NC COM NO
High Relay
Low Relay
Fault Relay
NC COM NO
NO COM NC
+ 12V -
- SIREN +
PSU
KEY RESET
RV1
To Lid
Ground
Connection
Base
Gr
ou
nd
Con
ne
ction
Mains
Power
Horn
(12 VDC, 200 mA Max)
Key
Switch
Push
Button
Switch
Repeat for sensor
channels 3 through
6 as required.
Ensure that connections 1 to 4
on each sensor connect to their
corresponding numbers on the
terminal block in the main
alarm unit, otherwise the
system will not function
correctly and could be
damaged.
Relay
Outputs
Fail Safe
Jumper Setting:
OFF
ON
OFF: High Relay Is
Energized On Alarm
(Energized on High
Alarm Condition)
ON: High Relay Is
Normally Energized
(De-energized on
High Alarm or Mains
Failure Condition)
Sensor Enable
Jumper Settings:
OFF
ON
OFF: Sensor is
disabled for this
channel
ON: Sensor is
enabled for this
channel
FAIL SAFE
ON
OFF
2 Channel 1 Alarm
2 Channel 2 Alarm
6 Channel 1 Alarm
6 Channel 2 Alarm
Refer to the
User Manual (part number 6109-
9000) at www.MyBacharach.com for detailed
instructions on accessing the internal components
for wiring.
SC Gas Sensor PCB
IR Gas Sensor PCB
SC
SENSOR
IR Gas Sensor PCB
4-c
onduct
or c
able (s
tr
anded);
500 ft (152 m) ma
x;
22 A
W
G; Ma
x 8.8Ω/wir
e
4-c
onduct
or c
able (s
tr
anded);
500 ft (152 m) ma
x;
22 A
W
G; Ma
x 8.8Ω/wir
e
4-conductor cable (stranded) (6 places max);
500 ft (152 m) max; 22 AWG; Max 8.8Ω/wire
4-conductor cable (stranded) (6 places max);
500 ft (152 m) max; 22 AWG; Max 8.8Ω/wire