Amtex Digital Series User manual

Digital Series Power Supply
Instruction Manual
855-317-000
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2A Angas Street,
Meadowbank NSW 2114
Sydney, Australia .
Tel: [phone]
Fax: [phone]
e-mail: [e-mail]
Web Site: www.amtex.com.au
ABN: 35 003 420 077

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Rev 1.71
Dec 2013
Copyright © 2012 Innovative Circuit Technology Ltd. All rights
reserved. No part of this publication may be reproduced, stored in a
retrieval system or transmitted in any form or by any means,
electronic, mechanical, photocopying, recording or otherwise, without
the prior written consent of Innovative Circuit Technology Ltd.

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Table of Contents
1.PRODUCT DESCRIPTION ...................................5
2.INSTALLATION ....................................................6
2.1.Initial Inspection 6
2.2.Back-up Battery 7
2.3.Installation 8
2.4.Remote Control and Monitoring Connections 9
3.FRONT PANEL CONTROL ................................10
3.1.Control Panel Keys and Controls 11
3.2.Setting the DC Output 11
3.3.Control Panel Menus 12
3.4.Control Panel Menu Password Reset 17
3.5.Administrator Password / IP Address Reset 17
4.SMART PARALLEL OPERATION .....................18
4.1.RS485 Interface Connector 19
4.2.Configuring the Power Supplies for Parallel Operation 19
4.3.Connecting the Power Supplies in Parallel with TCP/IP
Ethernet Option Installed 20
4.4.Advanced Parallel Operation with TCP/IP Ethernet Option 22
4.5.Changing a Power Supply Back To a Standalone Unit 23
5.TCP/IP WEB BASED UTILITY OPTION.............23
5.1.System Status 25
5.2.Device Setup 25
5.3.Battery Backup 26
5.4.Network Setup 27
5.5.Alarm Setup 29
5.6.User Setup 30
5.7.Maintenance 31
5.8.Router Configuration 32
5.9.Text Message Alarm Notifications 34
5.10.Troubleshooting 35
6.PRODUCT SPECIFICATION ..............................38
7.LIMITED WARRANTY ........................................40

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WARNING! – IMPORTANT SAFETY
NOTICES
Risk of personal injury and property damage! You must exercise
caution and follow the safety requirements listed below when
using your Digital Series power supply.
• The Digital Series Power supply is intended for installation and
use in a Restricted Access Location, such as a 19” equipment
rack
• Installation, operation, and service to be conducted by
qualified/trained service personnel only, with all wiring done in
accordance with local electrical codes
• Ensure the power supply is operated from a standard 3-pin
120VAC or 240VAC 50 / 60Hz outlet with proper grounding
connection
• Use 14AWG/1.5mm2or larger wiring for AC power and bonding
connections
• Building power supply circuit must have a circuit breaker with
maximum 20A rating for short circuit protection
• Ensure dc polarities and rated voltages are correct for both the
load and battery connections to the unit
• Ensure all connections are properly tightened before powering up
the unit to avoid over heating of connectors
• Disconnect all power sources (input power cord, and any
external batteries) before attempting any service activity. Internal
circuits can be energized with the power switch in the off position
• Battery current through the “BAT” terminal and internal LVD relay
must not exceed the maximum current limit rating of the Digital
Series power supply. Use a suitably rated over current protection
device and disconnect in line with the “BAT” terminal and
external battery positive. Do not connect the “BAT” terminal of
multiple units in parallel

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1. PRODUCT DESCRIPTION
ICT Digital Series DC power supplies provide high efficiency in a
space-saving 1RU rack mount design with power factor corrected AC
input and extremely low noise for powering wireless communications
and broadband equipment where high reliability is essential. They
have the ability to function either as a standalone DC power supply or
for battery charging applications. Options provide TCP/IP based
Ethernet monitoring and control, battery backup with automatic revert
and adjustable LVD, and Smart Parallel operation for up to 8kW of
combined output power.
Features:
• Up to 1350W in a space saving 1RU rack mount design with 90-
93% typical efficiency over a broad power range
• Output voltage can be easily and accurately adjusted over standard
battery operating voltage ranges using the Intelligent Power Control
interface on the front panel
• Smart Parallel operation allows up to six Digital Series power
supplies to be connected quickly and easily for up to 8,000 watts
of nominal power output
• Power Factor Corrected wide range AC input for maximum
flexibility, lowest supply current requirement, and economical
operation
• Isolated design allows operation with positive or negative ground
• -20 to +60C operating temperature range
• FCC Class B and CSA Certified
• Form C contacts for remote alarm signal
• Optional factory installed Ethernet option for complete and easy-
to-use remote monitoring and control of the power supply using
its built-in web server
• Optional factory installed battery backup with LVD contactor on
positive output with adjustable voltage set points, auto re-charge
Model Numbers and Options:

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Note:
Float charging/LVD option is designated by the suffix B (eg. ICT1200-
12SB).
Ethernet option is designated by the suffix C (eg. ICT1200-12SC).
Both options are designated by the suffix BC (eg. ICT1200-12SBC).
2. INSTALLATION
2.1. Initial Inspection
Perform a quick physical check on the unit once it has been taken out
of the box to confirm it has not been damaged in shipping, and then
check for the included parts and accessories to make sure they are
present.
Your Digital Series unit comes complete with:
• AC input wire clamp input connector plug (3pin), and 7 pin
REMOTE connector plug
• DC output bus bar cover and mounting hardware (installed)
• Three Bus bar bolts with locking nuts for output wiring
• Two rack mounting ears and hardware to mount to the power
supply chassis (installed)
• Instruction Manual
Model Watts
(Max)
Input
VAC
Output
VDC
Output
(A) Description
ICT1200-12S 1350 100-265 11.5 - 15.5 100 12VDC 100A
Power Supply
Model Watts
(Max)
Input
VAC
Output
VDC
Output
(A) Description
ICT1200-24S 1350 100-265 23 - 31.0 50 24VDC 50A
Power Supply
ICT1200-48S 1350 100-265 47- 62.0 25 48VDC 25A
Power Supply
ICT600-12S 675 100-265 11.5 – 15.5 50 12VDC 50A
Power Supply
ICT600-24S 675 100-265 23 – 31.0 25 24VDC 25A
Power Supply
ICT600-48S 675 100-265 47 – 62.0 12.5 48VDC 12A
Power Supply

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2.2. Back-up Battery
An external lead-acid battery with the same nominal voltage as the power
supply may be connected directly in parallel with the output terminals, or to
the BAT terminal (on units with the LVD option “B”) to provide a DC
backup capability. Use appropriate wire, over current protection and
disconnect device as outlined in the Installation section. Your load will
then be powered from the external battery if the AC input power should fail,
and the battery will recharge from the supply output when the AC power
returns. Choose your battery size (Ahr capacity) so that it can provide power
to the connected loads for the duration of a typical loss of AC power.
For both battery configurations the external battery will be charged with a
constant current (the supply output current setting) until the float voltage
(supply output voltage setting) is reached, and then will be held at a constant
float voltage as long as the Digital Series supply is powered on.
WARNING!
Potential for personal injury, or damage to property and
equipment due to overcharging of the external battery!
The supply output voltage must be set to a voltage level suitable
for the external battery used. Check the float voltage rating of
your battery and set the supply output voltage accordingly
before connecting the battery to the system.
The battery may be charged at a rate up to the maximum output
current rating of the power supply. Ensure the battery used is
capable of being charged at this rate.
Heavily discharged batteries will initially be charged with a small trickle
current on LVD equipped units when connected to the BAT terminal. When
the battery voltage is greater than the LVD Reconnect voltage (user
adjustable) the internal LVD contactor will close connecting the battery to
the main power supply output and the load, allowing the battery to charge
and be maintained at its float voltage level. If the AC power fails during
normal operation the battery will remain directly connected to the output
through the LVD contactor and able to power the load with no delay or
transition time. As battery voltage falls to the LVD disconnect level (user
adjustable) the LVD contactor will open to help protect the battery from
excessive discharge. The contactor will re-close once the battery voltage
rises again to the LVD Reconnect threshold (user adjustable) due to
charging from either an external source, or when AC power is returned to
the power supply.

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Note that during battery operation with AC power off the front panel display
and optional external communication ports will not be powered. Only the
battery LVD circuitry will be active.
2.3. Installation
The ICT Digital Series Power Supply is designed to be used in an industry
standard 1RU 19” rack mount cabinet or other restricted access location.
Insert the unit at the desired rack location, and secure the unit using standard
rack nuts and bolts (not provided). After the unit is mounted, connect load
and supply wiring as outlined in the steps below, referring to the back panel
drawing in Figure1 for connector locations:
(Figure 1 - Back Panel, “SBC” model shown)
1. Connect the positive side of the load to the ”POS” busbar and
the negative side of the load to the ”NEG” busbar using
suitable wire and supplied hardware. Make sure to tighten the
busbar hardware to properly secure the wires.
2. If applicable, on units with the Battery Backup (LVD) option
installed connect the POSITIVE of the backup battery to the
“BAT” busbar and the negative of the backup battery to the
“NEG“ busbar using suitable wire, over current protection,
disconnect device and hardware.
CAUTION!
The internal LVD contactor ties the “BAT” terminal to the power
supply “POS” output.
When using the LVD option in a positive ground system do not
ground the positive terminal of the battery. The system must only
have a single ground connection, normally located at the distribution
or load point. An additional ground connection at the battery will allow
current to bypass the internal LVD contactor preventing
disconnection of the battery during a low voltage event.

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WARNING!
Battery current through the “BAT” terminal must not exceed the
maximum current limit rating of the Digital Series power supply.
Connect the “BAT” terminal to the external battery POSITIVE
using a suitably rated over current protection and disconnect
device.
Otherwise damage to the unit, load, battery, and personal injury
may occur if the battery is inadvertently connected in reverse
polarity, or the output circuit is over loaded or shorted.
3. Connect a chassis bonding wire to the ¼ inch ground stud
located on the back panel, if required, using 14AWG/1.5mm2
or larger wire to bond the power supply chassis to the
external rack system for the installation.
4. Connect appropriately rated non-energized AC power wiring
to the removable AC input connector terminal plug. (AC line
or neutral to either outer connection, safety ground to the
middle pin) using 14AWG/1.5mm2or larger wire.
5. Connect the unit to a properly grounded non-energized AC
source capable of handling the rated Digital Series input
current. The building supply circuit must have a short circuit
protection breaker rated 20A or less.
6. Energize the AC source, and push the front panel “ON”
switch to power up the unit, then close the backup battery
disconnect device if an external battery is used.
7. Disconnect all power sources (AC input, output battery or
back-up battery) before attempting any service activity.
2.4. Remote Control and Monitoring Connections
The following connections may be made to the “REMOTE” connector on
the back panel for the following remote control and monitoring
functionality:
CAUTION!

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Ensure unit is off and power is disconnected prior to making
connections to the REMOTE connector terminals to avoid
damaging the power supply or connected devices.
• Connect external Remote Shutdown control lines (TTL
compatible signal) to the REM SD+ (pin 1) and REM SD- (pin
2) terminals of the “REMOTE” connector on the back panel if
external on/off control of the power supply output is required.
(Hi = output off, Lo = output on) (Does not alter the state of the
Battery contactor on units with the LVD option)
• Connect remote voltage sense lines (16-26AWG twisted pair)
from the REM SNS+ (pin 3) and REM SNS- (pin 4) terminals of
the “REMOTE” connector on the back panel to the external
load connections if required for tighter voltage regulation at the
load. (Default voltage regulation sense point is at the output
bus bars if Remote Sense is not connected).
• To keep the remote sense lead voltage compensation accuracy
to within about 2% of the total load cable voltage drop, remote
sense lead resistance should be kept to below 0.5ohms each.
For example 15m (50ft) of 20AWG wire would be about
0.5ohms in resistance. Longer remote sense lead connections
can be made using larger wire sizes, or relaxing remote sense
voltage compensation accuracy expectations.
• Connect external alarm monitoring input wiring to the Alarm
Output contacts on the REMOTE connector to enable the
internal Alarm relay contact closure to flag an external
monitoring system that the power supply has encountered a
fault condition. (See section 5.4 Alarm Setup, for details on
which fault conditions will trip the Alarm Output contacts).
Pin Number Name Note
5 Common Alarm Output common
6 NO
Alarm Output normally open
contact (0.5A 125Vac max)
7 NC
Alarm Output normally closed
contact (0.5A 125Vac max)
3. FRONT PANEL CONTROL

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The Intelligent Power Control on the front of the Digital Series power
supply allows you to view the status of the power supply, and modify
the power supply settings.
The Control Panel consists of the following:
(Figure 2 Front Panel Display and Control)
3.1. Control Panel Keys and Controls
Encoder Wheel: Turning the encoder wheel will scroll through the
Control Panel screens and menu items.
When modifying the value for a setting, turning the encoder wheel will
increase or decrease the value.
Enter Key: When a settings screen is shown on the Control Panel
display, pressing the Enter key will allow you to scroll through the
menu items on that screen.
When scrolling through menu items on a settings screen, pressing the Enter
key will enter the menu item that is currently selected.
When modifying the value for a setting, pressing the Enter key will save the
selected value for that setting.
Back Key: Pressing the Back button will exit out of the current menu
screen and return to the previous screen. If the Back button is
pressed while modifying the value for a setting, that setting will not be
saved.
• For a detailed description of the Control Panel screens and
menus, see the Control Panel Menus section.
3.2. Setting the DC Output

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To set the output voltage, current limit, and enable the output, do the
following:
1. Install the power supply and connect the load as described in
the Installation section.2. Using the encoder wheel on the
Control Panel, scroll to the System Settings screen, and then
press the Enter key.
2. Using the encoder wheel, scroll to the Output Voltage line, and
then press the Enter key.
3. Using the encoder wheel, adjust the output voltage set point to
the desired voltage, and then press the Enter key.
4. Using the encoder wheel, scroll to the Current Limit line, and
then press the Enter key.
5. Using the encoder wheel, adjust the current limit set point to
the desired current, and then press the Enter key.
6. Using the encoder wheel, scroll to the DC Output line, and then
press the Enter key.
7. Using the encoder wheel, change the DC output setting to On,
and then press the Enter key. The DC output will now be
turned on.
8. Press the Back key to return to the System Status screen.
3.3. Control Panel Menus

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Note: At any time Press the BACK key to return to the previous
Screen.
3.3.1. SYSTEM STATUS SCREEN
SYSTEM STATUS
INPUT VOLTAGE: 120V
OUTPUT VOLTAGE: 13.0V
OUTPUT CURRENT: 50.0A
The System Status screen allows you to monitor the input and output
status of the power supply.
Input Voltage: Displays the AC input voltage. Voltage display will
blink during an AC voltage failure. The Value can range from 100-265
VAC
Output Voltage: Displays the DC output voltage. Voltage display will
blink during an output voltage failure.
Output Current: Displays the output current. Current display will
blink when the power supply is in current limit.

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3.3.2. SYSTEM SETTINGS SCREEN
SYSTEM SETTINGS
OUTPUT VOLTAGE: 13.0V
CURRENT LIMIT: 50.0A
DC OUTPUT: ON
The System Settings screen allows you to modify the output settings of
the power supply.
Output Voltage: Modifies the power supply output voltage. The Range
of Output Voltage is 11.5 -- 15.5 V (12V model, for other models, see
table 3)
Current Limit: Modifies the power supply output current limit. The
Range of Current Limit is 25A – 106A (12V model, for other models,
see table 3)
DC Output: Allows you to turn the DC Output On or Off. (Battery
contactor will open when output set to Off on units with LVD option)
3.3.3. SECURITY SETTINGS SCREEN
SECURITY SETTINGS
SET PASSWORD
CLEAR PASSWORD
SET LOCKOUT TIMER
The Security Settings screen allows you to set a Control Panel menu
password to prevent unauthorized changes to the power supply
settings. After the Control Panel menu password is set, you will be
prompted for the password when attempting to change the power
supply settings.
The Control Panel menu password is a four-digit password that is
entered one digit at a time. When entering the password, turn the
encoder wheel to set the value for selected digit, then press the enter
key to select the next digit.

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• If you lose the Control Panel menu password, see the Control
Panel Menu Password Reset section for instructions on
how to clear the password
Set Password: Allows you to set the Control Panel menu password.
Clear Password: Allows you to clear the Control Panel menu
password.
Lockout Timer: Allows you to set the Lockout Timer for the Control
Panel menu password between 0 - 60min. When the Lockout Timer
is enabled, it sets the amount of time it will take for you to be locked
out of the Control Panel settings and need to enter the password.
Setting the Lockout Timer to 0 minutes disables the timer completely.
The default factory setting is 15 min.
3.3.4. COMM SETTINGS SCREEN
COMM SETTING
NETWORK STATUS
VIEW DEVICE NAME
RESET COMM SETTINGS
The COMM Settings screen is only available if the Ethernet option
(“C”) is installed
Network Status: Displays the network status, the IP address
assigned to the power supply, and the MAC address assigned to the
power supply.
View Device Name: ICT DIGITAL SERIES. The device name can
only be changed on the Ethernet network page.
Reset Comm Settings: Resets the Web server Administrator
password, IP address, and port settings to the original factory default
values. See the Administrator Password / IP Address Reset section for
more information.
3.3.5. PARALLEL SETTINGS SCREEN

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PARALLEL SETTINGS
MODE: STANDALONE
DEVICE ID: 0
UNITS IN PARALLEL: 0
See the Smart Parallel Operation section for more information on
configuring the parallel settings.
Parallel Mode: Modifies the parallel mode setting. It has 3 options:
Standalone: Single Unit.
Slave and Master: Parallel Units.
Device ID: Modifies the parallel device ID setting. Ranges from 0 – 5.
Units In Parallel: If parallel operation is active, the total number of
parallel units is displayed on this line. If parallel operation is not
active, the display will show blank. Up to 6 Units can be connected in
parallel corresponding to the value 0 – 5.
3.3.6. LVD SETTINGS SCREEN
LVD SETTINGS
DISCON VOLTAGE: 10.5V
RECONN VOLTAGE: 12.5V
BATT VOLTAGE: 0.0V
The LVD Settings screen is only available if the Battery Backup
option (“B”) is installed.
Disconn Voltage: Modifies the battery disconnect voltage. If the
battery voltage drops below the disconnect voltage, the battery relay
will open and disconnect the battery. There will be a 3 seconds delay
until the voltage disconnects. The Range of the Disconnect Voltage is
10 – 12.4V. (12V model)

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Reconn Voltage: Modifies the battery reconnect voltage. If the
battery voltage rises above the reconnect voltage while the battery is
disconnected, the battery relay will close and reconnect the battery.
There will be a 3 seconds delay until the voltage connects. The
Range of the Disconnect Voltage is 10.6- 13.8V. (12V model)
3.4. Control Panel Menu Password Reset
This procedure clears the Control Panel menu password and allows you to
set a new password if needed. To clear the password, do the following:
1. Turn the Power Switch to the OFF position.
2. Press and hold down the Back and Enter keys. Turn the Power
Switch to the ON position while holding the keys down. Continue
holding the keys down for 15 seconds until the System Status
screen is displayed on the Control Panel display.
3. Release the Back and Enter keys. You will no longer be
prompted for a password on any of the Control Panel screens.
4. In order to set a new password see SECURITY SETTINGS
SCREEN on page 14.
3.5. Administrator Password / IP Address Reset
This procedure resets the Administrator password, IP address, and port
settings to the original factory default values. The Standard User password is
not affected. To reset, do the following:
1. In the Control Panel menu on the front of the power supply, go to the
Comm Settings screen and press the Enter key.
2. Scroll down to Reset Comm Settings and press the Enter key.
3. Turn the Encoder Wheel to select Yes, and then press the Enter key.
4. After reset is complete, go to the Network Status screen in the Control
Panel menu to view the new IP address of the power supply.

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4. SMART PARALLEL OPERATION
If your load requires more power than can be supplied by a single
ICT Digital Series power supply, two or more power supplies
(maximum 6) of the same output voltage rating can be connected in
parallel in a Master-Slave configuration to increase the power
available, provided the TCP/IP Ethernet Option is installed
WARNING!
Do not use the Battery Backup/LVD option “BAT” terminal on
units connected in parallel, as there is a risk that the potential
current could be higher than the rating of the internal low
voltage disconnect relay.
Otherwise damage to the unit, load, and/or personal injury may
occur if the battery output current through the BAT terminal
exceeds the rating for an individual supply.
CAUTION!
Do not connect power supplies of different output voltage
ratings in parallel, as this may cause damage to equipment or
connected load.
Up to six power supplies of the same output voltage rating can be connected
in parallel to provide up to six times the total output power capability. An
optional bus bar set (ICT-PAR) is available to simplify connection of two
units in parallel. When multiple power supplies are operating in parallel,
they should all be connected together through the RS485 SHARE interface
(included as part of the “Ethernet Option”), which will allow the units to
share output current more equally, and allow for external network
connection for the combined units using a single Ethernet port. One of the
units will operate as a Master, and the remaining units are Slaves. The Slave
unit’s settings will be controlled by the Master.
Each unit displays its own output current and voltage on the System
Status screen in the Control Panel menu.
If you are running a single, standalone power supply, the Parallel
Mode setting must be set to Standalone.

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4.1. RS485 Interface Connector
The RJ-11 connectors for the RS485 serial interface are located on
the back of the power supply and are labeled SHARE “A” and “B”.
See figure 3. Parallel units must be connected together in a daisy-
chain manner with a RJ-11 4-wire straight-through cable.. A short (4
inch) RJ-11 connector cable suitable for interconnecting stacked
power supplies is available from ICT, part number “ICT-JMP”.
(Figure 3 Back panel SHARE connections)
4.2. Configuring the Power Supplies for Parallel
Operation
Before connecting the power supplies together, they should all be
configured for parallel operation. To do this:
1. Power each unit up independently. In the Control Panel menu,
scroll to the Parallel Settings screen and press Enter.
2. Scroll to the Parallel Mode setting and press Enter. Scroll and
choose a parallel mode setting, then press Enter. One unit must
be configured as a Master, and the remaining units must be set
to Slave. If more than one unit is configured as a Master, the
units will not operate in parallel correctly.
Since the Slave units will be controlled by the Master, set the unit
you would like to use to set the Output Voltage and Current Limit
as the Master unit. You will be unable to set the Output Voltage
or Current Limit from any of the Slave units once they are
configured as Slaves.
3. Scroll to the Device ID setting and press Enter. Scroll and choose
a unique device ID number for each unit, then press Enter. If
more than one unit is assigned the same device ID number, the
units will not operate in parallel correctly.

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NOTE: Although not recommended, it is possible to connect up to six
Digital Series power supplies in parallel without using the TCP/IP
Ethernet option and the Smart Parallel feature. It is important that the
parallel-connected power supplies generally share the load equally.
In order to achieve this, the size and length of the connecting wires
should be sized properly and of the same gauge, and the wire
lengths between the power supplies should be virtually identical. To
ensure proper load balancing without using the Smart Parallel
feature, use a voltmeter to measure the output voltage of each power
supply with the load connected, and using the Intelligent Power
Control interface on the front of the Digital Series power supply,
adjust the output voltage level of each power supply until the outputs
are within +/- 1% of each other.
4.3. Connecting the Power Supplies in Parallel with
TCP/IP Ethernet Option Installed