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P/N 501-1761ZE-1-05 (EN)
• REV
05
• ISS
07JUN13
A50E-
2 Line Relay Unit Installation Sheet
Description
The A50E-
2 Line Relay Unit is an addressable device used to
provide one Form C change over dry relay contact to control
external appliances (door closers, fans, dampers, etc.) or
equipment shutdown. The system firmware ensures that the
relay is in the proper ON/OFF state. Upon command from the
control panel, the relay energizes. TB2
-
6 and TB2
-
7 provide a
normally
-
closed relay connection; TB2
-
7 and TB2
-
8 provide a
normally
-
open relay connection. One device address is
required.
Up to 127 devices can be assigned to the loop. All devices
incorporate a binary DIP switch enabling them to be given a
unique address.
A red LED indicator illuminates when the unit
has activat
ed.
Installation
Notes
•
This module complies
with the requirements of
EN 54-18.
If the module is used in conditions or circumstances that
do not comply with those tested for and allowed in
EN 54-18
, operation may be impaired, and the supplier will
not be liable for any injury suffered or damage caused as
a result. You must contact our technical support
department
for advice if the device is to be used in
conditions
that
differ from those prescribed in EN
54-18.
•
This module will
not
operate without electrical power. As
fires frequently cause power interruption, we suggest you
discuss further safeguards with your local fire protection
specialist
.
WARNING:
Electrocution hazard. Dangerous voltages may be
present at terminals even when the power is shut off
.
Take
proper precautions to avoid injury or death.
Note:
The A50E-
2 Line Relay Unit is shipped from the factory
as an assembled unit; it contains no user
-
serviceable parts and
should
not
be disassembled
To install the device:
1.
Verify that all field wiring is free of opens, shorts, and
ground faults.
2.
Make all wiring connections as shown in
Figure 1.
Notes:
•
If a 2 in. (51 mm) 1
-
gang box is used, conduit can enter
the electrical box through only one knockout hole.
•
If a 2
-1/
2 in. (64 mm) 1
-
gang box is used, conduit can
enter the electrical box through one or both
knockout
holes
.
Mounting
The A50E-
2 can be mounted using any of three methods:
•
A DIN rail method for mounting multiple/single units
•
Adaptor plates for accessory box mounting
•
Single box mounting
The u
nit can be mounted in a European 100mm square box.
The terminal blocks will accept 14, 16, or 18 AWG wire (0.75,
1.0, 1.5, mm²). Sizes 16 and 18 AWG are preferred.
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