6
Federal Signal
signaling.fedsig.com
Leads connected to the terminals shall be insulated for
the appropriate voltage and this insulation shall extend to
within 1 mm of the metal of the terminal throat.
The G-LED terminal block is supplied with two conductors
per pole. The terminal block allows for easy supply-in and
loop-out wiring to connect beacons in series.
Tools needed:
•
3.0 mm hexagon key
•
No. 1 Phillips
®
screwdriver
•
Wire stripper
Wiring the Ex de Models
CIRCUIT BOARD DAMAGE: The DC beacons are polarity
sensitive, and MAY BE DAMAGED by incorrect electrical
hookup. When connecting the DC beacon to the voltage
supply lines, POLARITY MUST BE OBSERVED. In
addition, damage will result if the voltage rating of the
particular model is exceeded by more than 10 percent.
To wire the Ex de beacon:
1.
Unscrew the four M4 socket-head cap screws and
remove the terminal box cover.
2.
Strip the wire insulation 8 mm to 9 mm (0.33").
NOTE:
When using more than one single or multiple
strand lead, the connection into either side of any terminal
must be joined in a suitable manner, e.g. two conductors
into a single insulated crimped bootlace ferrule.
3.
To connect wires, press the button on the terminal
block with a Phillips screwdriver and insert the wire
into the round opening. Release the button to make
the connection.
24 Vdc Models
a.
Connect the positive (+) power source wire
to the terminal block pole marked L1/+. See
Figure 10.
Figure 10 Connections for DC or AC Ex de beacons
Aud+
L1/+
L2/-
L3/Alt+
Aud-
Aud+
L1/+ L2/-
L3/Alt+
Aud-
A
A
b.
Connect the negative (-) power source wire to
the terminal block pole marked L2/-.
c.
Connect the earth ground wire to the terminal
block pole marked
.
120-240 Vac Models
a.
Connect the line (hot) power source wire to
the terminal block screw marked L1/+. See
Figure 10.
b.
Connect the neutral (common) power source
wire to the terminal block pole marked L2/-.
c.
Connect the earth ground wire to the terminal
block pole marked
.
4.
Secure the cover on the terminal box with the four
M4 screws. Ensure that the gasket is properly
seated to maintain the IP rating. Do not overtighten
the cover screws.
5.
Test the beacon for proper operation.
Changing the Flash Pattern
LIGHT HAZARD: To be an effective warning device, the
beacon produces bright light that can be hazardous
to your eyesight when viewed at close range. Do not
stare directly into the light at close range, or permanent
damage to your eyesight may occur.
EXPLOSION HAZARD: To prevent ignition of hazardous
atmosphere, disconnect the device from the supply
circuit before opening it. Do not open the device in the
presence of explosive gases in the atmosphere.
BURN HAZARD: The LED emitter gets hot enough to burn
you. Always allow the emitter to cool before handling it.
The Model G-LED Series beacon has eight flash patterns
that are selected by setting a DIP switch on the PCB. See
Figures 11 and 12.
Figure 11 Location of DIP switch for flash patterns
STEADY ON (DEFAULT)
