Emerson Liebert ICOM-DO User Manual

Infrastructure Management & Monitoring
For Business-Critical Continuity™

Liebert® iCOM-DO

User Manual

™

TABLE OF CONTENTS

1.0 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2.0 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2.1 Retrofit Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2.1.1 System Wiring—All Liebert iCOM Controllers . . . . . . . . . . . . 2

3.0 CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3.1 DIP Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3.2 Diagnostic LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3.3 Piezoelectric Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

4.0 OUTPUTS - STATUS AND ALARMS. . . . . . . . . . . . . . . . . 5

FIGURES

Figure 1 Typical system configuration . . . . . . . . . . . . . . . . . . . . . . . 1

Figure 2 ELV wiring for Liebert iCOM-DO . . . . . . . . . . . . . . . . . . . 3

TABLES

Figure 3 Typical system configuration . . . . . . . . . . . . . . . . . . . . . . . 1

Figure 4 ELV wiring for Liebert iCOM-DO . . . . . . . . . . . . . . . . . . . 3

i

ii

1.0 INTRODUCTION

Dry-Contact Discrete Outputs to:

• BMS Interface

• Alarm Panel

• Autodialer , etc.

2-Wire Connection Per Alarm

Liebert Precision Cooling Unit

Liebert iCOM-DO
Interface Card

The Liebert iCOM Discrete Output interface card provides dis­crete outputs for Liebert Precision Cooling units equipped
with a Liebert iCOM control. Operating status is monitored
and critical alarms are communicated via contact closure. Any
alarm monitor, I/O panel, autodialer or monitoring system can
be used to monitor your Liebert unit.

The Liebert iCOM-DO card is available as a factory-installed
option or in a kit for field-retrofit to Liebert Precision Cooling
units equipped with the Liebert iCOM control.

Figure 1 Typical system configuration

Introduction

Table 1 Specifications

Electrical Requirements

Voltage 24VAC or 24VDC, ±20% 50/60 Hz, Single Phase

Power 10W maximum

Environmental Conditions, °C (F)

Operating

Temp.

Storage Temp. -20 to 70 (-4 to 158)

Humidity: 10% to 95% RH (non-condensing)

Dimensions, mm (inches)

Card Only 178 x 102 x 38 (7.0 x 4.0 x 1.5)

Shipping 248 x 178 x 64 (9.75 x 7.0 x 2.5)

Weight, kg (lb)

Net 0.1 (0.2)

Shipping 0.6 (1.3)

Compatibility

Discrete
Outputs

Precision Cooling units with Liebert iCOM control and
software version # PA1.04.022 STD or newer

16 Form-C Contact Closures (SPDT Relays, energize to alarm)
Rating: 1A @ 30VDC; 0.46A @ 65 VDC; 0.46 A @ 150VAC
16-24 AWG (1.5mm

5 to 55 (41 to 131)

2

- 0.25mm2)wiring

1

2.0 INSTALLATION

As a retrofit kit, the Liebert iCOM-DO is secured to a metal
mounting plate. The mounting plate is then attached to a flat
metal surface in the extra low voltage (ELV) section of the Lie­bert unit.

If the Liebert iCOM-DO was ordered as a factory-installed
option, proceed to 3.0 - Configuration.

2.1 Retrofit Installation

Position the Liebert iCOM-DO in the low voltage/control cav­ity of the Liebert Precision Cooling unit. Use three #8 x 3/8"
sheet metal screws to attach the mounting plate to the Liebert
Precision Cooling unit.

2.1.1 System Wiring—All Liebert iCOM Controllers

Two wiring harnesses are included with the retrofit kit, one
for the power connection and one for CAN communication.
Refer to Figure 2 for details on routing the wiring.

Installation

Power Connection

The harness supplied with the Liebert iCOM-DO interface
card (P/N 159084G1) is equipped with three connectors, one at
either end of the harness and one in the middle. The harness
taps power from the 24VAC input to the control board of the
Liebert Precision Cooling unit.

To connect this power to the Liebert iCOM-DO:

1. Locate the connector containing the two red wires plugged
into P43 on the control board and unplug it. Reconnect it
to the connector in the middle of the supplied harness.

2. Plug one end of this harness into P43 on the control board
and the other end into TB100 of the Liebert iCOM-DO.

NOTICE

Risk of improper wiring. Can cause equipment damage.
Do not tap power from the auxiliary 24VAC Terminals

T5/G5 on the Liebert iCOM. Powering from this source
might damage the controller and interface card.

Communication Connection

The second wiring harness provided (P/N 197975G1) has a
connector fitted at either end and is the communications con­nection between the unit microprocessor and the Liebert
iCOM-DO.

2

To put it in the system:

Connect 24VAC power
from P45 on the fuse
board to P43 on the
unit control board

Connect CAN Bus to P66 or
P67 on the back of Liebert
iCOM control

Route CAN Bus communications from P999
on the Liebert iCOM-DO board to P66 or P67
on the back of the Liebert iCOM control

Route 24VAC
power from P43
on the cooling
unit control board
to TB100 on the
Liebert iCOM-DO
board

Liebert
iCOM-DO
board

Liebert Precision Cooling unit control board

Fuse Board

Liebert

iCOM

control

1. Connect the RJ-type connector to the Liebert iCOM
control board at either the P66 or P67 connection if unit is
equipped with a small display. If unit is equipped with a
large display, connect the RJ-type connector to the CAN
connector on the back of the large display.

2. Connect the MTA-style connector of the wire harness to
TB102 of the Liebert iCOM-DO interface card.

Figure 2 ELV wiring for Liebert iCOM-DO

Installation

3

3.0 CONFIGURATION

Configuration

The Liebert iCOM-DO can function with either Liebert
SiteLink

®

or Liebert IntelliSlot® monitoring cards. The Lie­bert iCOM-DO outputs can be configured only from the large
Liebert iCOM display. The small Liebert iCOM display cannot
be used to configure the Liebert iCOM-DO outputs. Refer to
the Liebert iCOM manual, SL-18835, for details. The docu­ment is available at Liebert’s Web site: www.liebert.com

3.1 DIP Switch Settings

The Liebert iCOM currently supports one connected Liebert
iCOM-DO. The Liebert iCOM-DO is configured at the factory
with all switches in the OFF position (default is OFF). No DIP
switch changes are necessary.

The Liebert iCom control uses the default address and will
automatically detect the Liebert iCOM-DO when it is con­nected. Refer to the Liebert iCOM manual for details.

3.2 Diagnostic LEDs

LEDs are provided on the interface card to provide informa­tion for diagnostic purposes. The following table summarizes
their indications:

Table 2 Diagnostic LED indications

LED Identifier Description

DS1 CAN Receive Active

DS2 CAN Transmit Active

DS3 +12V Isolated Power On

DS4 24VAC or 24VDC Power Supply On

DS5 +5V Logic Power On

3.3 Piezoelectric Horn

The jumper, P5, located adjacent to the piezoelectric buzzer, is
used to enable or disable operation of the audible alarm. The
card ships with the buzzer disabled. With the jumper connect­ing the two pins of P5, the audible alarm is enabled. The
buzzer will be activated whenever there is an alarm for
TB1-TB15.

NOTE

The buzzer should be enabled only for use during
troubleshooting.

4

Outputs - Status and Alarms

4.0 OUTPUTS - STATUS AND ALARMS

A three-position screw terminal block is provided for each
Form-C contact closure output. The wiring connection is uni­form for all 16 outputs:

Position 1: Common
Position 2: Normally Closed
Position 3: Normally Open

Position 1 is the left-most connection, and is marked by a tri­angular symbol on the circuit board. The outputs are not
supervised (except as noted below); thus, the N.O. contact
would be closed only upon an active/alarm condition.

Refer to Table 3 for the standard mapping of status and
alarms. The output terminal block (TB) for each alarm output
is configurable. For details, refer to the Liebert iCOM manual,
SL-18835, available at Liebert’s Web site: www.liebert.com

NOTE

The top of the screw terminals cannot be used to obtain
contact when using a meter to verify the status of a contact
closure. The meter must contact the terminal block in the
openings where the wires are inserted.

Table 3 Standard mapping of status and alarms

Terminal Block Description Liebert iCOM

TB1 Cooling Status

TB2 Heating Status

TB3 Humidifying Status

TB4 Dehumidifying Status

TB5 High Temperature

TB6 High Humidity

TB7 Low Temperature

TB8 Low Humidity

TB9a High Head Pressure C1

✔

✔

✔

✔

✔

✔

✔

✔

✔

TB9b High Head Pressure C2

TB10 Loss of Airflow

TB11 Change Filters

TB12 Water Detected/ Customer Alarm 1

TB13 Customer Alarm 2

TB14 GLYCOOL Status

TB15 Unit On

✔

✔

✔

✔

✔

✔

✔

5

Outputs - Status and Alarms

6

Ensuring The High Availability
Of Mission-Critical Data And Applications.

While every precaution has been taken to ensure the accuracy and completeness of this literature, Liebert Corporation assumes
no responsibility and disclaims all liability for damages resulting from use of this information or for any errors or omissions.
© 2010 Liebert Corporation
All rights reserved throughout the world.
Specifications subject to change without notice.
® Liebert is the registered trademark of Liebert Corporation. All names referred to are trademarks or
registered trademarks of their respective owners.

Locations

United States

1050 Dearborn Drive

P.O. Box 29186

Columbus, OH 43229

Europe

Via Leonardo Da Vinci 8

Zona Industriale Tognana

35028 Piove Di Sacco (PD) Italy

[phone]

Fax: [phone]

Asia

29/F, The Orient Square Building

F. Ortigas Jr. Road, Ortigas Center

Pasig City 1605

Philippines

[phone]

Fax: [phone]

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Technical Support / Service

Web Site

www.liebert.com

Monitoring

800-222-5877
[e-mail]
Outside the US: 614-841-6755

Single-Phase UPS

800-222-5877
[e-mail]
Outside the US: 614-841-6755

Three-Phase UPS

800-543-2378
[e-mail]

Environmental Systems

800-543-2778
Outside the United States
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