Eaton Cuttler-Hammer Addressable Relay II Manual

IL17435 Rev. C For more information visit: www.cutler-hammer.eaton.com Effective: 1/05
INSTRUCTION
LEAFLET
IL17435 Rev. C
INSTRUCTIONS FOR THE
ADDRESSABLE RELAY II USED IN THE
INCOM NETWORKS OF CUTLER-HAMMER
POWERNET SYSTEMS

Addressable Relay II IL17435 Rev. C
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SECTION 1.0 COMMUNICATIONS
Addressable Relays are one form of communication
module used for remote control of electrical devices.
They are connected to an INCOM network that is part of
Eaton’s Cutler-Hammer PowerNet System. A typical
motor starter application is shown in Figure 2. A typical
network consists of twisted pairs, daisy-chained as shown
in Figure 3 to a remote personal computer. The computer
identifies which device on the network it is communicat-
ing with by the address assigned to the Addressable
Relay.
SECTION 2.0 INSTALLATION
This industrial type control is designed to be installed,
operated and maintained by adequately trained work
personnel. These instructions do not cover all details,
variations or combinations of the equipment, its storage,
delivery, installation, check-out, safe operation or mainte-
nance. Care must be exercised to comply with local,
state and national regulations, as well as safety practices,
for this class of equipment.
SECTION 3.0 CONTROL STATION
The control station for the PowerNet system must be an
IBM personal computer or equivalent (compatible) or a
translator unit that will accept the INCOM network signals
and convert them to an RS-232 format for transmission to
the controlling computer.
The Addressable Relay II can communicate at either 1200
baud or 9600 baud. The baud rate is used selectable in
the field by a DIP switch in the front of the unit. When
DIP switch 1 is set to the OFF position, the Addressable
Relay II will communicate at 9600 baud. When DIP
switch 1 is set to the ON position, the Addressable Relay
II will communicate at 1200 baud. See Figure 4 for DIP
switch configuration. All devices on a single INCOM
network must communicate at the same baud rate.
SECTION 4.0 THE ADDRESSABLE
RELAY II
The Addressable Relay II is a Form C relay with output
contact ratings as shown in Table 1. The Addressable
Relay II may be powered by 48 to 144 Volts ac or 48 to
125 Volts dc through terminals 11 and 12 of the terminal
FIGURE 1 - ADDRESSABLE RELAY II
FIGURE 2 - TYPICAL SCHEMATIC DIAGRAM

IL17435 Rev. C
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Addressable Relay II
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block, power requirement is 5 VA. dc polarity is not
significant. The operating temperature range of the
Addressable Relay II is 0o C to 70oC.
Each Addressable Relay II includes two status indicating
circuits (IN1 and IN2) which can be used to transmit the
contact status of devices external to the Addressable
Relay II. A typical installation using these report-back
inputs to the PowerNet system is shown in Figure 2.
Terminals 4 and 5 connect to the status indicating 1
circuit and terminal 6 and 7 connect to the status indicat-
ing 2 circuit. See Figure 1. These status indicating
circuits operate with input voltages of 120 +/-20% Volts
ac or 48 to 125 Volts dc circuits.
The Addressable Relay II includes a feature called the
Communications Watchdog. The communications
watchdog monitors communications between the Addres-
sable Relay II and the computer control station. If com-
munications are lost, the communications watchdog will
reset the relay to the de-energized (OFF) state. The
Addressable Relay II must be updated every 4 seconds
when the communications watchdog is enabled or else
communications are assumed to be lost. The communica-
tions watchdog is enabled when DIP switch 3 is set to the
ON position. When the communications watchdog is not
enabled, the relay will remain in the state set by the last
command issued. See Figure 4 for DIP switch configura-
tion.
The Addressable Relay II also includes a feature called
Relay Pulse which is enabled and disabled by the DIP
switch setting. With the relay pulse feature enabled, the
Addressable Relay II will operate when it receives an ON
signal in the form of a pulse. Having been turned ON by
the pulse signal, the relay will automatically turn itself OFF
after an ON period of 8 to 12 seconds. When DIP switch
2 is set to the OFF position to disable the relay pulse
feature the Addressable Relay II will remain in the state
set by the last command.
Each Addressable Relay II (see Figure 1) has three hexa-
decimal (digits 0 through 9 plus A through F) selector
switches that must be used to assign a unique address to
each unit on the network. The light emitting diode (LED)
at the top left-hand corner of the product (labeled RLY)
illuminates red when the relay is energized and illuminates
green when the relay is de-energized. The LED below
labeled TX flashes when the Addressable Relay II is
transmitting the status of the two report-back inputs into
the PowerNet network.
SECTION 5.0 ADDRESSING
Each Addressable Relay II installed in any one network
must have a unique address. The three hexadecimal
selector switches offer 4096 different addresses (16 x 16
x 16), ranging from 000 to FFF. Records of addresses
may be maintained in terms of the hexadecimal number
(recommended) or decimal equivalent. In a hexadecimal
system, A = 10, B = 11, C = 12, D = 13, E = 14 and
F = 15. Examples of switch settings are shown in Figure
5.
To convert from a hexadecimal number to a decimal
number:
1) Multiply the setting on the top switch (A2) by 256.
2) Multiply the setting on the center switch (A1) by 16.
3) Multiply the setting on the bottom switch (A0) by 1.
4) Add the results from step 1, 2 and 3 together.
The results for the second example in Figure 5 is (2 x
256) + (1 x 16) + 10 = 538.
SECTION 6.0 WIRING
Wire the 12-pole terminal block located on the Address-
able Relay II per Figure 6. The terminal block capabilities
are shown in Section 6.1. Terminal 1, 2 and 3 are used
for the relay output. Terminals 4 and 5 are used for
status indicating circuit 1. Terminals 6 and 7 are used for
status indicating circuit 2. Terminal 10 is not used.
Terminals 11 and 12 are used to supply the control
power. The polarity of the control power is not important.
OFF ON
Baud Rate 9600 1200
Relay Pulse Disabled Enabled
Comm. Watchdog Disabled Enabled
FIGURE 4 DIP SWITCH FUNCTIONS
FIGURE 3 - TYPICAL NETWORK INTERWIRING

Addressable Relay II IL17435 Rev. C
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6.1 WIRING DATA
Terminal Block Capacity:
#22 AWG to #12 AWG stranded copper conductors rated
not less than 75oC. Tighten terminals to 4 to 6 lb.-in.
Check each wire to ensure that it is fastened securely.
Terminals 8 and 9 are the INCOM communications
connections. Use a twisted pair wire (Belden 9463 or
equivalent) to connect terminals 8 and 9 of the Address-
able Relay II to the INCOM network, daisy-chain style (see
Figure 3). The polarity of the twisted pair is not impor-
tant.
6.2 SIMPLIFIED WIRING RULES
The following simplified rules apply given a system
consisting of a single daisy chained main cable link
between master and slave devices. For more complex
considerations including star configurations please refer to
the IMPACC Wiring Specification (TD17513).
• The maximum RJ-11 cable length is 50 feet.
• The maximum system capacity is 10,000 feet of
communications cable and 1000 slave devices.
• Main cable link must be terminated at each end by a 1/4
watt, 100 V, carbon resistor. When the CONI-III is at an
end of the line, place the switch on the end plate in the
ON position to terminate the line.
• Non terminated taps, up to 200 feet in length, off the
main link are permitted, but add to the total cable length.
• Make sure that there is a twisted wire pair present that
is intended for PowerNet network use. Use shielded
twisted pair wire (IMPCABLE or Belden 9463 family) to
connect each slave device to the PowerNet network,
daisy-chain style. The polarity of the twisted pair is not
important.
7.0 OPERATION CHECK
After the PowerNet system has been installed, check the
operation of each Addressable Relay II by applying power
to each unit. The top LED should illuminate green when
power is first applied. Issue a command to turn the relay
ON (energize the relay). The top LED will turn red. This
will confirm that the unit is receiving the PowerNet
command.
Send a request for status command. This will cause the
bottom LED to flash and return a status to the computer.
This response will confirm that the unit is responding
correctly.
8.0 MOUNTING
Use three #8 screws to mount the unit as specified in
Figure 8. If there is a BF relay mounting strip already
installed, use it to mount the unit without any hardware.
The unit should be mounted with the light emitting diode
(LED) in the upper left-hand corner.
Voltage Make Break
120-240 Vac 4960 VA 828 VA
24-120 Vac 43 A 7.2 A
30 Vdc 10 A 10 A
Can operate a DGSL9 control relay
having a 48 or 125 Vdc coil
FIGURE 5 - ADDRESS SELECTOR
SWITCH EXAMPLES
TABLE 1 - RELAY CONTACT RATINGS
FIGURE 6 - TERMINAL BLOCK WITH TWISTED PAIR

IL17435 Rev. C
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Addressable Relay II
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9.0 TROUBLESHOOTING
If the unit does not operate properly check the following:
1) Check to see if all wires are securely connected to the
Addressable Relay II.
2) Check the baud rate selection.
3) Check the INCOM network wiring.
4) Check to see that the address is set correctly.
5) Check to see that the software is configured correctly.
There are no user serviceable parts on the Addressable
Relay II. The user should not attempt servicing this
equipment. Please contact your local Cutler-Hammer
representative or the Power Quality Technical Support
Center (PQTSC) for service information.
10.0 TECHNICAL ASSISTANCE
For additional information, technical assistance or referral
to a local authorize distributor, contact Power Quality
Technical Support Center (PQTSC) at 1-800-809-2772,
option 1 / option 1 (outside the United States please call
1-414-449-7100 option 1 / option 1). You can also e-mail
us at [email protected] or visit us on the web,
www.cutler-hammer.eaton.com, and follow the power
management product link.
You can also access our searchable database C-H eXpert
that provides self-help solutions with troubleshooting
information. Simply connect to the C-H eXpert Web site at
http://chexpert.ch.cutler-hammer.com/chexpert and type
in a keyword or product for your particular technical
problem in the search box.
11.0 WARRANTY AND LIABILITY
INFORMATION
This instruction booklet is published solely for information
purposes and should not be considered all-inclusive. If
further information is required, you should consult Cutler-
Hammer. Sale of the product shown in this literature is
subject to terms and conditions outlined in appropriate
Cutler-Hammer selling policies or other contractual
agreements between the parties. This literature is not
intended to and does not enlarge or add to any such
contract. The sole source governing the rights and
remedies of any purchaser of this equipment is the
contract between the purchaser and Cutler-Hammer.
NO WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING
WARRANTIES OF FITNESS FOR A PARTICULAR PUR-
POSE OR MERCHANTABILITY, OR WARRANTIES ARIS-
ING FROM COURSE OF DEALING OR USAGE OF TRADE,
ARE MADE REGARDING THE INFORMATION, RECOM-
MENDATIONS AND DESCRIPTIONS CONTAINED HEREIN.
In no event will Eaton be responsible to the purchaser or
user in contract, in tort (including negligence), strict
liability or otherwise for any special, indirect, incidental or
consequential damage or loss whatsoever, including but
not limited to damage or loss of equipment use, plant or
power system, cost of capital, loss of power, additional
expenses in the use of existing power facilities or claims
against the purchaser or user by its customers resulting
from the use of the information, recommendations and
description contained herein.
FIGURE 8 - MOUNTING DIMENSIONS (IN INCHES)

Addressable Relay II IL17435 Rev. C
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© 2005 Eaton Corporation
All Rights Reserved
Publication No. IL17435 Rev. C
December 2005
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trial automation products and services. Through advanced product development, world-class
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is a global leader in fluid power systems and services for industrial, mobile and aircraft equip-
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Eaton Corporation
Cutler-Hammer business unit
1000 Cherrington Parkway
Moon Township, PA 15108-4312
USA
www.cutler-hammer.eaton.com
IL17435 Rev. C/ Style # IL17435H04
For additional information please call:
Power Quality Technical Support Center
1-800-809-2772 option 1 / option 1