Valcom Vp-6124-p User manual

Issue 3

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VP-6124-P

24 VOLT DC SWITCHING POWER SUPPLY

INTRODUCTION

These instructions provide the specifications,

installation and maintenance information for the

VP-6124-P 24 Volt Power Supply.

SPECIFICATIONS

The VP-6124-P is a fully regulated 24 VDC, 6

amp switching power supply. The primary is

protected by a 4 amp slo-blo fuse and the two

amp outputs by auto-resetting fuses. The

outputs are floating with respect to ground. The

regulator will maintain 24 volts +/-2% over the

rated range of input voltages and output loads.

A greater than 6 amp load on power up will

cause the power supply to current limit. Short

circuit protection is provided. Over voltage is

provided to limit the output voltage to

approximately 28 volts should a failure occur

within the power supply. Outputs may be

paralleled but not series connected.

Applications

The VP-6124-P is designed to be used with:

All Valcom page control units

Valcom one-way amplified speaker

assemblies

Any application where 24 VDC filtered talk

battery is required

Design Features

115 VAC, 60Hz input

(3) 24 VDC @ 2A each, outputs

Short Circuit Protection

UL Listed for US and Canada

LED operational indicator

Remote battery charge test

EMI filtering

Auto recovery overload protection

88.5% Efficiency Green Technology

AC Standby & UPS indication

Optional UPS remote battery control for

providing uninterrupted power

(VP-6124-UPS) available

3 second power-up delay to drive large

capacitive loads up to 40K uF

Nominal Specifications

General

Efficiency: 88.5% @ 6A full load

Weight: Approximately 5.0 lbs. (2.3 Kg)

Dimensions: 8.9" x 5.6" x 2.2"

(22.6cm X 14.2cm X 5.6cm)

Input

Voltage: 115 VAC

Frequency: 60Hz

Full Load Line Current: 2.2A

Rated Power: 167 Watts

Fusing : Line, 4 Amp slo-blo

Output

Rated Power: 144 Watts

Voltage: 24 Volts

Current: 6 Amps (3 - 2A outputs)

Fusing: 3 - 2A, auto-reset polyswitch fuses

Ripple & Noise: 1% P-P Max

Environmental

Operating Temp: 0 - 50oC

Storage Temp: -40oto 85o C

Cooling: Free Air Convection

Humidity: 10 - 90% (non-condensing)

Shock: 10 G

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Precautionary Notes:

CAUTION: To reduce the risk of electric shock,

Do not remove cover.

No user serviceable arts inside.

Refer servicing to qualified service ersonnel.

This symbol indicates that dangerous

voltage constituting a risk of electric

shock is resent within this unit.

This symbol indicates that there are

im ortant o erating and maintenance

instructions in the literature accom anying

this unit.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

NOTE: Unplug power cord and run off

battery box breaker before servicing.

INSTALLATION

The VP-6124-P is designed for wall mounting

only. The unit should be mounted within 7 feet

of an AC receptacle. A local ground is provided

through the AC cord.

Screw mounting plate to wall and position power

supply on mounting via the mounting slots.

Connections

Connections to Valcom page control units

are shown in Figure 1.

When using the VP-6124-P with Valcom

page equipment, a strap may be added from

the local ground terminal to either of the

"-" outputs.

When installing Valcom one-way amplified

horns, connect the white and black wires of

the horn to the power supply "-" and "+"

terminals respectively.

When installing Valcom one-way speakers

connect the "-24VDC" an "GND" terminals of

the speaker to the "-" and "+" terminals

respectively.

Plug power supply into wall outlet.

Power supply activates after a 3 second

delay.

NOTE: Each 24VDC screw terminal is fused

by a 2 Amp poly switch automatic type fuse.

Therefore, when connecting equipment to

this power supply, the load should be

distributed between the (3) 2 Amp output

terminals and each load should not exceed

2 Amps.

TECHNICAL ASSISTANCE

When trouble is reported, verify there are no

broken connections. Troubleshooting assistance

is available from the factory. Call (540) 563-

2000 and press 1 for Technical Support, or visit

our website at http://www.valcom.com.

Valcom equipment is not field repairable.

Valcom, Inc. maintains service facilities in

Roanoke, VA. Should repairs be necessary,

attach a tag to the unit clearly stating company

name, address, phone number, contact person,

and the nature of the problem. Send the unit to:

Valcom, Inc.

Repair and Return Dept.

5614 Hollins Road

Roanoke, VA 24019-5056

TROUBLESHOOTING CHART

Problem

Solution

1. No output.

2. LED pulses in reset

mode.

a. Verify AC present at receptacle.

b. Remove DC load and check for 24VDC using a VOM.

a. Locate and correct short circuit in output wiring.

b. Verify total equipment power consumption does not exceed 6

amps.

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+-+-+-

To page units

or amplified

speaker assemblies

Strap

Local GND 24V Outputs

VP-6124-P Power Supply

Figure 1

VALCOM LIMITED WARRANTY

Valcom, Inc. warrants its products only to the original purchaser, for its own use, to be free from defects in materials and workmanship under conditions of

normal use and service for a period of one year from the date of shipment. This Limited Warranty obligation shall be limited to the replacement, repair or refund

of any such defective device within the warranty period, provided that:

1. inspection by Valcom, Inc. indicates the validity of the claim;

2. the defect is not the result of damage, misuse or negligence after the original shipment;

3. the product has not been altered in any way or repaired by others and that factory sealed units are unopened (a service charge plus parts

and labor will be applied to units defaced or physically damaged);

4. freight charges for the return of products to Valcom are prepaid;

5. all units 'out of warranty' are subject to a service charge. The service charge will cover minor repairs (major repairs will be subject to

additional charges for parts and labor).

This Limited Warranty is in lieu of and excludes all other warranties, expressed or implied and in no event shall Valcom, Inc. be liable for any

anticipated profits, consequential damages, loss of time or other losses incurred by the buyer in connection with the purchase, operation,

maintenance, installation, removal or use of the product. The maximum liability of Valcom under this warranty is limited to the purchase price of the

specific Product covered by the warranty.

Disclaimer. Except for the Limited Warranty provided herein, the product is provided “as-is” without any warranty of any kind whatsoever including, without

limitation, any WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.

This warranty specifically excludes damage incurred in shipment. In the event a product is received in damaged condition, the carrier should be notified