4. Commissioning
Page 32
MF0123A1F
_FCC
_uc Manual for PSR 700/800 MHz
4.2.10. Power Connection
Before connecting electrical power to the PSR, the system must be grounded as
described in section
To get access to the terminal blocks the front door must be opened. To open the door,
the locks must be opened with the supplied keys.
, remove the plastic cap to feed the supply cable into the
housing.
The available 1/2” common thread can be used to connect conduit.
After the system has been grounded as explained in section
, the neutral and hot
wire (AC system) or the negative and positive wire (DC system) must be connected to
the internal power supply unit as described in table
4-2 Power supply connection (AC)
and table
4-3 Power supply connection (DC).
To connect the wires remove the
protective plastic cover, loose the desired screw and connect the spade terminals as
illustrated in
figure 4-4 AC wires, installation
figure 4-5 DC wires, installed
respectively.
Polarity of cable end
Cable end:
Connect to terminal:
Neutral
spade terminal
N
Hot
spade terminal
L
Green/Yellow
ring terminal
Ground bolt
table 4-3 Power supply connection (AC)
figure 4-4 AC wires, installation example
Notice:
For the installation, observe that a minimum air gap of ¼ inch (6.4 mm) must
be maintained between the local power cable wires and the network/alarm
cables that are pre-installed by the supplier. A good practice is to cut the local
cable to a suitable size so that it will be led directly (without being wound up)
from the opening in the cabinet to the power connectors (N, L). In that way the
air gap can be kept as shown in the example above.
27 DC cable from
PSU (pre-installed
by supplier
Network and alarm
cables (pre-installed
by supplier
PSU GND cable
(pre-installed
by
supplier
Example of local power
cable (to be provided by
installer)