6
Model G-SND Sounder
Federal Signal
signaling.fedsig.com
Figure 6 Ex d in/out PCB connections
VOLTAGE
SELECTOR
SWITCH
D8
D2
D1
D4
D3
J1
F1
S1
S2
F2
D7
D5
D6
R1
DC
120
230
AC
T4 T3 T2 T1 SEL EARTH L2 L2 L1 L1
Wiring the Ex d Models
To wire the Ex d flameproof sounder:
1.
Unscrew the M3 hex set screw on the side of the housing one full turn.
2.
Remove the cover from the housing by turning the cover counterclockwise. Three 120-degree spaced reliefs are
provided for a 3/8-inch spanner wrench if needed. If the cover will not unscrew, back out the set screw a few
additional turns.
3.
Loosen the captive Phillips screw retaining the driver/printed circuit board (PCB).
4.
Slide out the PCB until the terminals clear the housing. Strip the wire insulation 6.5 mm (0.25 in). Maximum screw
tightening torque is 0.5 N•m (4.5 in-lb).
5.
Follow the instructions starting below for your line voltage and continue to Step 6 on page 6. Refer to Figure 6 for
the voltage selector switch and Table 1 on page 8 for the tone chart. For remote tone selection, refer to Table
5 on page 13.
Figure 7 Locations of tone and volume switches
TONE
SELECTOR
SWITCH
VOLUME
CONTROL: FULL
CLOCKWISE
= MAX. VOLUME
220-240 Vac Operation (no remote switching of tones)
a.
Set the voltage selector switches to 230 and AC.
b.
Turn the tone selector switch to the desired tone.
c.
Connect the line (hot) power source wire to the terminal block position marked L1 on the PCB.
d.
Connect the neutral (common) power source wire to the terminal block position marked L2 on the PCB.
e.
Connect ground wire to the terminal block position marked EARTH.
