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TROUBLE SHOOTING:
CONDITION
24VDC not being supplied
to paging system equipment.
If the problem still exists, turn the power supply off. Disconnect the field wiring from the binding posts of the malfunctioning circuit
(ie. A1, A2 or both A1 and A2 if connected in parallel). Turn on the power supply and check for the presence of 24VDC
at the output terminals. The power on LED's should also be lit. If the power supply is operating properly, check the field wiring for a
short circuit condition. Also verify that the connected paging systems equipment does not draw more than 2 Amps per output, or more
than 4 Amps when the outputs are connected in parallel. If the problem is determined to be the power supply, return the unit to
Wheelock for servicing.
CAUTION: TO PREVENT ELECTRIC SHOCK DO NOT REMOVE COVER. NO USER SERVICEABLE PARTS
INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
IMPORTANT: READ SEPARATE "GENERAL INFORMATION" SHEET FOR INFORMATION ON THE PLACEMENT,
LIMITATIONS, INSTALLATION, FINAL CHECKOUT, AND PERIODIC TESTING OF NOTIFICATION APPLIANCES.
MOUNTING DIAGRAM
FIGURE 1.
DUAL OUTPUTS-2 AMPS EACH
2 AMP OUTPUT TO
- + - +
PAGING SYSTEM
GND
CIRCUIT #1
A2
A1
-24V
GND
2 AMP OUTPUT TO
PAGING SYSTEM
-24V
CIRCUIT #2
TO 117 VAC
FIGURE 2.
CHECK
1) Verify that an input voltage of 105.3 to 128.7 VAC at 60HZ is
2) The power switch should be in the "ON" position.
3) If the circuit breaker (on the back of the unit) has tripped,
TERMINAL BLOCK AND COVER
CLIP
TERMINAL BLOCK
SINGLE OUTPUT-4 AMPS
present.
push in the reset button in the center of the circuit breaker.
COVER
CLIP
FIGURE 1A.
- + - +
GND
4 AMP OUTPUT TO
PAGING SYSTEM
A2 A1
-24V
TO 117 VAC
FIGURE 3.
P81642 G
Sheet 2 of 3
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