PowerWalker DC UPS User manual

Page 1

DC UPS

User Manual

Page 2

Table of Contents

1. Introduction…………………………………………………………3-4

1.1 General Introduction ……………………………………….………3

1.2 Panel Introduction …………………………………………….……3

1.3 The 7 Pin Terminal Connecters Introduction Table …………….4

2. Safety Information……………………………………………………5

3. Package Contents……………………………………………………6

4. Installation …………………………………………………………7-9

4.1 Wire Connection …………………………………………………7-8

4.2 Wall-Mounting Instructions (Optional) ……………………………9

5. Operation…………………………………………………….………10

6. Available & Visual Alarms ………………………………….………11

7. Battery Replacement Procedure …………………………….……12

8. Specifications …………………………………………………..……13

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1. Introduction

1.1 General Introduction

DC UPS is the innovative power protection solution for delicate network devices

and telecom equipments. It equips with 12V/30Watts power capacity and internal

long 7 amp-hour backup battery. With universal input voltage design, this UPS

can be widely applied to the majority power system without AC input voltage

transfer. The advantages of DC output are saving the cost and space of the

additional power adapter connection. This feature further prevents the power loss

while transferring between DC to AC. The thoughtful wall-mount design allows

you to install DC UPS to diverse environments for maximizing your precious

space. DC UPS can be applied to any other device equipped with a compatible

DC input connector.

Features

Universal input range (80-260VAC) for global applications

12VDC (30W max.) output meets the major standard of network devices

Integrated hot-swappable to easy replacement battery allows battery

replacement without power interruption.

Microprocessor controlled for optimized operation and maximum reliability

Audible warning alarm with mute switch

Outputs for remote monitoring; On Battery, Replace Battery, Battery

missing and

Low battery alert

Wall mountable design for maximized flexibility

Multiple LED for AC power and battery status indications

Cold Start function capable

1.2 Panel Introduction

The front view

Power on/off

Use poweron/off switch to turn the

DC UPS on/off. The unit will not

supplypowerto the networkdevices

when power switch is in OFF (Not

push down)position.

Status Indicators

There are three LED status lights: red,

yellowand green which are from left to

right. The status lightsindicatespecific

conditionsof the DC UPS. (See page X.)

Mute on/off

Use thisswitch to turn the mutefunction

on/off.Theaudiblealarmswillbesilenced

whenmuteswitch isinON (Push down)

position.

Page 4

The rear view

1.3 The 7 Pin Terminal Connecters Introduction Table

Terminal

Connectors

Function

Suggested

Wire Gauge

VO+

Positive(+) Voltage output

At least #18AWG

VO-

Negative(-) Voltage output

At least #18AWG

SIG RTN

Signal return

At least #26AWG

ON BATT

Low when operation from utility

line.

Open when operating from

battery.

At least #26AWG

REPLACE BATT

Low when battery is charged.

Open when battery fails the self-

test.

At least #26AWG

BATT MISSING

Low when battery is present.

Open when battery is missing.

At least #26AWG

LOW BATT

Low when battery is near full

charge capacity.

Open when operating from

a battery with < 20% capacity.

At least #26AWG

AC input socket

TheAC input socket is

IEC320 C14.

DC output socket

TheDC outputincludes12VDCpower,

four dry contactsignalsand common

return pointfor these signals. Please

findthedefinensandwire connections

for DC output socket asbelow table.

Page 5

2. Safety Information

Internal battery voltage is 12V DC.

Incorrect battery connection or replacement creates risk of explosion.

Use only vender approved replacement batteries.

The DC UPS is intended for installation and operation in a controlled

environment (temperature controlled, indoor area free of conductive

contaminants). Refer to specifications in this manual.

No user-serviceable parts exist inside the unit. Refer repair issues only to

qualified personnel. Fuses or other parts must be replaced ONLY with

parts of identical types and ratings. Substitution of non-identical parts can

cause fire and other safety hazards.

All batteries used are sealed lead batteries. Batteries should be recycled.

The battery charges when it is connected to theAC power. The battery

will fully charge during the first eight hours of normal operation. Do not

expect full battery run capability during this initial charge period.

Connect the DC UPS to utility power for completely charging the internal

battery before starting the UPS.

Page 6

3. Package Contents

The DC UPS package includes the following items. Please inspect if there are

any missing parts.

1 x DC UPS Unit with 12V internal battery preinstalled

1 x User Manual

1 x 7-position connector

Page 7

4. Installation

4.1 Wire Connection

1. Remove the wire connection cover in the rear of the DC UPS. Keep the

cover will and reinstall the cover after all the wires are well-connected.

2. Plug IEC-LOCAL power cord into theAC input socket on the back of DC

UPS. Do not connect the AC power cord to utility outlet prior to this

process.

3. Connect DC UPS to network device.

3.1 If the telemetry cable is enclosed:

(1) Plug the telemetry cable into the 7-position connector

(2) Then place the cable between the two sticks for fixing the cable as

the following picture

Page 8

3.2 If the telemetry cable is not enclosed:

(1) Cut and strip the self-prepared cable leads, and then attach the

leads to the 7-position connector. Make sure that the correct

wire gauges are used for the safety (Please refer to “1.3 The 7

Pin Terminal Connecter Intro Table”)

(2) Plug the 7-conductor cable into the outlet of the DC UPS

(3)Then place the cable between the two sticks for fixing the cable

as the following picture

4. Close the wire connection cover

5. Connect the other end of the cable to the equipment

Page 9

4.2 Wall-Mounting Instructions (Optional)

NOTE: Required hardware not included. Refer to the wall-mount instructions

for required tools and materials.

STEP 1: Make a mark on the wall in the 2 screw locations. The distance

between the centers of the 2 screws are 80cm.

STEP 2: Use a drill to drill holes where you made the mark on the wall. If you

drill into a wall stud, proceed to Step 5. If not, go to Step 4.

STEP 3: Insert anchor(s) into the hole(s).

STEP 4: Screw in the screw, leaving it protruding 1⁄4 inch from the wall.

STEP 5: Mount the DC UPS on the screw heads. Mounting holes

Page 10

5. Operation

After the installation, you can start to operate the DC UPS and let your device

running under uninterruptible power supply environment as the following

procedure.

STEP 1: Plug theAC input power cord of the DC UPS into the wall outlet (The

utility power outlet)

STEP 2: Push the power on/off switch and you may hear a long beep buzzer

alarm for knowing the unit is properly turned on. You may turn the audible

alarm off by pushing the mute switch button to ON (Push down) position.

Self-test

Use the self-test to verify both the operation of the DC UPS and the condition

of the battery. Turn the mute switch ON then OFF, then ON and OFF again

within five seconds. During the Self-test, the DC UPS operates in backup

mode.

The DC UPS automatically conducts a Self-test in two conditions. 1) Operate

it and then the MCU detects battery voltage is higher than 13V. 2) Every 21

days while operating all the time.

Note: During the self-test, the DC UPS briefly operates on battery-backup

power. The green LED will flash for five minutes during the test period. If the

DC UPS passes the Self-test, it returns to online operation. If the DC UPS

fails the Self-test, it immediately returns to online operation and lights the red

LED. The loads are not affected. Recharge the battery overnight and perform

the self-test again. If the red LED is still on, the battery needs to be replaced.

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