Solid state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the
Application, Installation and Maintenance of Solid State Controls (publication SGI-1.1 available from your local Rockwell Automation sales
office or online at http://literature.rockwellautomation.com
wired electromechanical devices. Because of this difference, and also because of the wide variety of uses for solid state equipment, all
persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable.
In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use or
application of this equipment.
The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements
associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or liability for actual use based on the
examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software described in
this manual.
Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation, Inc., is prohibited.
Throughout this manual, when necessary, we use notes to make you aware of safety considerations.
Identifies information about practices or circumstances that can cause an explosion in a
hazardous environment, which may lead to personal injury or death, property damage, or
economic loss.
) describes some important differences between solid state equipment and hard-
Identifies information that is critical for successful application and understanding of the product.
Identifies information about practices or circumstances that can lead to personal injury or death,
property damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and
recognize the consequence
Labels may be on or inside the equipment, for example, a drive or motor, to alert people that
dangerous voltage may be present.
Labels may be on or inside the equipment, for example, a drive or motor, to alert people that
surfaces may reach dangerous temperatures.
Allen-Bradley, Rockwell Automation, and XM are trademarks of Rockwell Automation, Inc.
Trademarks not belonging to Rockwell Automation are property of their respective companies.
Safety Approvals
WARNING
AVERTISSEMENT
IMPORTANT
The following information applies when operating
this equipment in hazardous locations.
Products marked "CL I, DIV 2, GP A, B, C, D" are suitable
for use in Class I Division 2 Groups A, B, C, D, Hazardous
Locations and nonhazardous locations only. Each product
is supplied with markings on the rating nameplate
indicating the hazardous location temperature code.
When combining products within a system, the most
adverse temperature code (lowest "T" number) may be
used to help determine the overall temperature code of
the system. Combinations of equipment in your system
arfe subject to investigation by the local Authority Having
Jurisdiction at the time of installation.
EXPLOSION HAZARD -
•Do not disconnect equipment unless power
has been removed or the area is known to be
nonhazardous.
•Do not disconnect connections to this
equipment unless power has been removed
or the area is known to be nonhazardous.
Secure any external connections that mate to
this equipment by using screws, sliding
latches, threaded connectors, or other means
provided with this product.
•Substitution of components may impair
suitability for Class I, Division 2.
•If this product contains batteries, they must
only be changed in an area known to be
nonhazardous.
Informations sur l’utilisation de cet équipement en
environnements dangereux.
Les produits marqués "CL I, DIV 2, GP A, B, C, D" ne
conviennent qu'à une utilisation en environnements de
Classe I Division 2 Groupes A, B, C, D dangereux et non
dangereux. Chaque produit est livré avec des marquages
sur sa plaque d'identification qui indiquent le code de
température pour les environnements dangereux. Lorsque
plusieurs produits sont combinés dans un système, le
code de température le plus défavorable (code de
température le plus faible) peut être utilisé pour
déterminer le code de température global du système. Les
combinaisons d'équipements dans le système sont
sujettes à inspection par les autorités locales qualifiées
au moment de l'installation.
RISQUE D’EXPLOSION –
•Couper le courant ou s'assurer que
l'environnement est classé non dangereux
avant de débrancher l'équipement.
•Couper le courant ou s'assurer que
l'environnement est classé non dangereux
avant de débrancher les connecteurs. Fixer
tous les connecteurs externes reliés à cet
équipement à l'aide de vis, loquets
coulissants, connecteurs filetés ou autres
moyens fournis avec ce produit.
•La substitution de composants peut rendre
cet équipement inadapté à une utilisation en
environnement de Classe I, Division 2.
•S'assurer que l'environnement est classé non
dangereux avant de changer les piles.
Wiring to or from this device, which enters or leaves the system enclosure, must
utilize wiring methods suitable for Class I, Division 2 Hazardous Locations, as
appropriate for the installation in accordance with the product drawings as
indicated in the following table.
This chapter provides an overview of the XM-220 Dual Speed module. It also
discusses the components of the module.
For information about See page
Introducing the XM-220 Module1
XM-220 Module Components2
Using this Manual3
Introducing the XM-220
Module
The XM-220 Dual Speed module is a member of the Allen-Bradley™ XM®
Series, a family of DIN rail mounted condition monitoring and protection
modules that operate both in stand-alone applications or integrate with
Programmable Logic Controllers (PLCs) and control system networks.
The XM-220 is a two channel module that accepts input from any two
tachometers of any standard type including eddy current probes, magnetic
pickups, optical tachometers, and TTL output devices. It measures speed,
rotor acceleration, and peak speed and is capable of detecting zero speed,
locked rotor, and reverse rotation conditions. It is also used as a component of
the XM Electronic Overspeed Detection system.
The XM-220 can be configured (using the configuration software) to operate
in three different modes. This controls how the sensors are used to calculate
the speed, acceleration, and peak measurements.
• Dual Channel Mode - This is the default mode. The two sensors are
used independently to perform two separate sets of speed, acceleration,
and peak speed measurements.
• Single Redundant Channel Mode- One of the two sensors is used
perform the speed, acceleration, and peak speed measurements. The
module automatically switches to the other (redundant) sensor when a
transducer or tachometer fault is detected on the current sensor.
• Reverse Rotation Mode - The two sensors are used to monitor speed
and direction of a single shaft. The two sensors must be mounted out of
phase from each other so that the rotational direction can be determined
by monitoring which sensor the shaft keyway passes first. Refer
to Sensor Placement for Reverse Rotation on page 35.
1Publication GMSI10-UM004B-EN-P - May 2010
2 Introduction
D
U
A
L
S
P
E
E
D
1
4
4
0
S
P
D
0
2
0
1
R
B
XM-941 Speed/Position Module
Terminal Base Unit
Cat. No. 1440-TB-B
XM-220 Dual Speed Module
Cat. No. 1440-SPD02-01RB
The module includes a single on-board relay (expandable to five), two 4-20mA
outputs, and a buffered output for each input. A third buffered output is
available when the module is functioning in the single redundant channel
mode. This buffered output signal corresponds to the active input signal so
that the machine speed can be accurately tracked regardless of which of the
redundant sensors is active.
The XM-220 can operate stand-alone, or it can be deployed on a standard or
dedicated DeviceNet network where it can provide real-time data and status
information to other XM modules, PLCs, distributed control systems (DCS),
and Condition Monitoring Systems.
The module can be configured remotely via the DeviceNet network, or locally
using a serial connection to a PC or laptop. Refer to Chapter 3 for a list of the
configuration parameters.
XM-220 Module
Components
The XM-220 module consists of a terminal base and an instrument module.
The XM-220 Dual Speed module and the XM-941 Position/Speed Terminal
Base are shown below.
Figure 1.1 XM-220 Module Components
• XM-941 Position/Speed Module Terminal Base - A DIN rail mounted
base unit that provides terminations for all field wiring required by
Position and Speed modules, including the XM-220.
Publication GMSI10-UM004B-EN-P - May 2010
Introduction 3
IMPORTANT
• XM-220 Dual Speed Module - Mounts on the XM-941 terminal base
unit via a keyswitch and a 96-pin connector. The XM-220 contains the
measurement electronics, processor, relay, and serial interface port for
local configuration.
The XM-441 Expansion Relay module may be connected
to the XM-220 module via the XM-941 terminal base unit.
When connected to the XM-220, the Expansion Relay
module simply “expands” the capability of the XM-220 by
adding four additional epoxy-sealed relays. The XM-220
controls the Expansion Relay module by extending to it the
same logic and functional controls as the XM-220 module’s
on-board relay.
Using this Manual
This manual introduces you to the XM-220 Dual Speed module. It is intended
for anyone who installs, configures, or uses the XM-220 Dual Speed Module.
Organization
To help you navigate through this manual, it is organized in chapters based on
these tasks and topics.
Chapter 1 “Introduction” contains an overview of this manual and the
XM-220 module.
Chapter 2 “Installing the XM-220 Dual Speed Module” describes how to
install, wire, and use the XM-220 module.
Chapter 3 “Configuration Parameters” provides a complete listing and
description of the XM-220 parameters. The parameters can be viewed and
edited using the XM Serial Configuration Utility software and a personal
computer.
Appendix A “Specifications” lists the technical specifications for the XM-220
module.
Appendix B “DeviceNet Information” provides information to help you
configure the XM-220 over a DeviceNet network.
Appendix C “DeviceNet Objects” provides information on the DeviceNet
objects supported by the XM-220 module.
For definitions of terms used in this Guide, see the Glossary at the end of the
Guide.
Publication GMSI10-UM004B-EN-P - May 2010
4 Introduction
TIP
EXAMPLE
Document Conventions
There are several document conventions used in this manual, including the
following:
The XM-220 module is referred to as XM-220, Speed module, device, or
module throughout this manual.
A tip indicates additional information which may be
helpful.
This convention presents an example.
Publication GMSI10-UM004B-EN-P - May 2010
Chapter
ATTENTION
2
Installing the XM-220 Dual Speed Module
This chapter discusses how to install and wire the XM-220 Dual Speed
module. It also describes the module indicators and the basic operation of the
module.
For information about See page
XM Installation Requirements6
Mounting the Terminal Base Unit13
Connecting Wiring for Your Module17
Mounting the Module39
Module Indicators40
Basic Operations43
Environment and Enclosure
This equipment is intended for use in a Pollution Degree 2
Industrial environment, in overvoltage Category II applications
(as defined in IED publication 60664–1), at altitudes up to 2000
meters without derating.
This equipment is supplied as “open type” equipment. It must be
mounted within an enclosure that is suitably designed for those
specific environmental conditions that will be present, and
appropriately designed to prevent personal injury resulting from
accessibility to live parts. The interior of the enclosure must be
accessible only by the use of a tool. Subsequent sections of this
publication may contain additional information regarding specific
enclosure type ratings that are required to comply with certain
product safety certifications.
See NEMA Standards publication 250 and IEC publication
60529, as applicable, for explanations of the degrees of
protection provided by different types of enclosures.
5Publication GMSI10-UM004B-EN-P - May 2010
6 Installing the XM-220 Dual Speed Module
ATTENTION
ATTENTION
XM Installation
Requirements
This section describes wire, power and grounding requirements, and
instructions for an XM system.
Wiring Requirements
Use solid or stranded wire. All wiring should meet the following specifications:
• 14 to 22 AWG copper conductors without pretreatment; 8 AWG
required for grounding the DIN rail for electromagnetic interference
(emi) purposes
• Wire ferrules can be used with stranded conductors; copper ferrules
recommended
See the XM Documentation and Configuration Utility CD
for Hazardous Locations installation drawings. The XM
Documentation and Configuration Utility CD is packaged
with the XM modules.
Power Requirements
Before installing your module, calculate the power requirements of all modules
interconnected via their side connectors. The total current draw through the
side connector cannot exceed 3A. Refer to the specifications for the specific
modules for power requirements.
A separate power connection is necessary if the total
current draw of the interconnecting modules is greater than
3A.
Figure 2.1 is an illustration of wiring modules using separate power
connections.
Publication GMSI10-UM004B-EN-P - May 2010
Installing the XM-220 Dual Speed Module 7
Any limited power
source that satisfies
the requirements
specified below
Figure 2.1 XM Modules with Separate Power Connections
Power Supply Requirements
XM Power Supply Requirements
Listed Class 2 rated supply, or
Protection
Fused* ITE Listed SELV supply, or
Fused* ITE Listed PELV supply
Output Voltage24 Vdc ± 10%
Output Power100 Watts Maximum (~4A @ 24 Vdc)
Static Regulation± 2%
Dynamic Regulation± 3%
Ripple< 100mVpp
Output NoisePer EN50081-1
Overshoot< 3% at turn-on, < 2% at turn-off
Hold-up TimeAs required (typically 50mS at full rated load)
* When a fused supply is used the fuse must be a 5 amp, listed, fast acting fuse such as
provided by Allen-Bradley part number 1440-5AFUSEKIT
Publication GMSI10-UM004B-EN-P - May 2010
8 Installing the XM-220 Dual Speed Module
IMPORTANT
See Application Technique "XM Power Supply Solutions",
publication ICM-AP005A-EN-E, for guidance in
architecting power supplies for XM systems.
Grounding Requirements
Use these grounding requirements to ensure safe electrical operating
circumstances, and to help avoid potential emi and ground noise that can cause
unfavorable operating conditions for your XM system.
DIN Rail Grounding
The XM modules make a chassis ground connection through the DIN rail.
The DIN rail must be connected to a ground bus or grounding electrode
conductor using 8 AWG or 1 inch copper braid. See Figure 2.2.
Use zinc-plated, yellow-chromated steel DIN rail (Allen-Bradley part no.
199-DR1 or 199-DR4) or equivalent to assure proper grounding. Using other
DIN rail materials (e.g. aluminum, plastic, etc.), which can corrode, oxidize, or
are poor conductors can result in improper or intermittent platform
grounding.
Publication GMSI10-UM004B-EN-P - May 2010
Figure 2.2 XM System DIN Rail Grounding
Power
Supply
DYNAMIC MEASUREMENT
1440-VST02-01RA
DYNAMIC MEASUREMENT
1440-VST02-01RA
POSITION
1440-TSP02-01RB
MASTER RELAY
1440-RMA00-04RC
EXPANSION RELAY
1440-REX00-04RD
EXPANSION RELAY
1440-REX00-04RD
EXPANSION RELAY
1440-REX00-04RD
EXPANSION RELAY
1440-REX00-04RD
Power
Supply
DYNAMIC MEASUREMENT
1440-VST02-01RA
DYNAMIC MEASUREMENT
1440-VST02-01RA
EXPANSION RELAY
1440-REX00-04RD
EXPANSION RELAY
1440-REX00-04RD
1
1
Installing the XM-220 Dual Speed Module 9
1 Use 14 AWG wire.
The grounding wire can be connected to the DIN rail using a DIN Rail
Grounding Block (Figure 2.3).
Publication GMSI10-UM004B-EN-P - May 2010
10 Installing the XM-220 Dual Speed Module
Figure 2.3 DIN Rail Grounding Block
Panel/Wall Mount Grounding
The XM modules can also be mounted to a conductive mounting plate that is
grounded. See Figure 2.5. Use the grounding screw hole provided on the
terminal base to connect the mounting plate the Chassis terminals.
Figure 2.4 Grounding Screw on XM Terminal Base
Publication GMSI10-UM004B-EN-P - May 2010
Figure 2.5 Panel/Wall Mount Grounding
Power
Supply
Power
Supply
1
1
Installing the XM-220 Dual Speed Module 11
1 Use 14 AWG wire.
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12 Installing the XM-220 Dual Speed Module
IMPORTANT
IMPORTANT
24V Common Grounding
24V power to the XM modules Must be grounded. When two or more power
supplies power the XM system, ground the 24V Commons at a single point,
such as the ground bus bar.
If it is not possible or practical to ground the -24Vdc
supply, then it is possible for the system to be installed and
operate ungrounded. However, if installed ungrounded
then the system must not be connected to a ground
through any other circuit unless that circuit is isolated
externally. Connecting a floating system to a non-isolated
ground could result in damage to the XM module(s)
and/or any connected device. Also, operating the system
without a ground may result in the system not performing
to the published specifications regards measurement
accuracy and communications speed, distance or reliability.
The 24V Common and Signal Common terminals are
internally connected. They are isolated from the Chassis
terminals unless they are connected to ground as described
in this section. See Terminal Block Assignments on page 18
for more information.
Transducer Grounding
Make certain the transducers are electrically isolated from earth ground. Cable
shields must be grounded at one end of the cable, and the other end left
floating or not connected. It is recommended that where possible, the cable
shield be grounded at the XM terminal base (Chassis terminal) and not at the
transducer.
DeviceNet Grounding
The DeviceNet network is functionally isolated and must be referenced to
earth ground at a single point. XM modules do not require an external
DeviceNet power supply. Connect DeviceNet V- to earth ground at one of the
XM modules, as shown in Figure 2.6.
Publication GMSI10-UM004B-EN-P - May 2010
Installing the XM-220 Dual Speed Module 13
To
Ground
Bus
ATTENTION
Figure 2.6 Grounded DeviceNet V- at XM Module
Use of a separate DeviceNet power supply is not
permitted. See Application Technique "XM Power Supply
Solutions", publication ICM-AP005A-EN-E, for guidance
in using XM with other DeviceNet products.
Mounting the Terminal
Base Unit
For more information on the DeviceNet installation, refer to the ODVA
Planning and Installation Manual - DeviceNet Cable System, which is available
on the ODVA web site (http://www.odva.org).
Switch Input Grounding
The Switch Input circuits are functionally isolated from other circuits. It is
recommended that the Switch RTN signal be grounded at a single point.
Connect the Switch RTN signal to the XM terminal base (Chassis terminal) or
directly to the DIN rail, or ground the signal at the switch or other equipment
that is wired to the switch.
The XM family includes several different terminal base units to serve all of the
measurement modules. The XM-941 terminal base, Cat. No. 1440-TB-B, is the
only terminal base unit used with the XM-220.
Publication GMSI10-UM004B-EN-P - May 2010
14 Installing the XM-220 Dual Speed Module
ATTENTION
Position terminal base at a slight angle and hook over the top of the DIN rail.
The terminal base can be DIN rail or wall/panel mounted. Refer to the
specific method of mounting below.
The XM modules make a chassis ground connection
through the DIN rail. Use zinc plated, yellow chromated
steel DIN rail to assure proper grounding. Using other
DIN rail materials (e.g. aluminum, plastic, etc.), which can
corrode, oxidize or are poor conductors can result in
improper or intermittent platform grounding.
You can also mount the terminal base to a grounded
mounting plate. Refer to Panel/Wall Mount Grounding on
page 10.
DIN Rail Mounting
Use the steps below to mount the XM-941 terminal base unit on a DIN rail
(A-B pt no. 199-DR1 or 199-DR4).
1. Position the terminal base on the 35 x 7.5mm DIN rail (A).
2. Slide the terminal base unit over leaving room for the side
connector (B).
Publication GMSI10-UM004B-EN-P - May 2010
Installing the XM-220 Dual Speed Module 15
IMPORTANT
3. Rotate the terminal base onto the DIN rail with the top of the rail
hooked under the lip on the rear of the terminal base.
4. Press down on the terminal base unit to lock the terminal base on the
DIN rail. If the terminal base does not lock into place, use a screwdriver
or similar device to open the locking tab, press down on the terminal
base until flush with the DIN rail and release the locking tab to lock the
base in place.
Interconnecting Terminal Base Units
Follow the steps below to install another terminal base unit on the DIN rail.
Make certain you install the terminal base units in order of
left to right.
1. Position the terminal base on the 35 x 7.5mm DIN rail (A).
2. Make certain the side connector (B) is fully retracted into the base unit.
3. Slide the terminal base unit over tight against the neighboring terminal
base. Make sure the hook on the terminal base slides under the edge of
the terminal base unit.
4. Press down on the terminal base unit to lock the terminal base on the
DIN rail. If the terminal base does not lock into place, use a screwdriver
or similar device to open the locking tab, press down on the terminal
base until flush with the DIN rail and release the locking tab to lock the
base in place.
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16 Installing the XM-220 Dual Speed Module
5. Gently push the side connector into the side of the neighboring terminal
base unit to complete the backplane connection.
Panel/Wall Mounting
Installation on a wall or panel consists of:
• laying out the drilling points on the wall or panel
• drilling the pilot holes for the mounting screws
• installing the terminal base units and securing them to the wall or panel
Use the following steps to install the terminal base on a wall or panel.
Publication GMSI10-UM004B-EN-P - May 2010
Installing the XM-220 Dual Speed Module 17
Side Connector
1. Lay out the required points on the wall/panel as shown in the drilling
dimension drawing below.
Connecting Wiring for Your
Module
2. Drill the necessary holes for the #6 self-tapping mounting screws.
3. Secure the terminal base unit using two #6 self-tapping screws.
4. To install another terminal base unit, retract the side connector into the base unit. Make sure it is fully retracted.
5. Position the terminal base unit up tight against the neighboring terminal
base. Make sure the hook on the terminal base slides under the edge of
the terminal base unit.
6. Gently push the side connector into the side of the neighboring terminal
base to complete the backplane connection.
7. Secure the terminal base to the wall with two #6 self-tapping screws.
Wiring to the module is made through the terminal base unit on which the
module mounts. The XM-220 is compatible only with the XM-941 terminal
base unit, Cat. No. 1440-TB-B.
Publication GMSI10-UM004B-EN-P - May 2010
18 Installing the XM-220 Dual Speed Module
ATTENTION
WARNING
XM-941, Cat. No. 1440-TB-B
Figure 2.7 XM-941 Terminal Base Unit
Terminal Block Assignments
The terminal block assignments and descriptions for the XM-220 module are
shown below.
The terminal block assignments are different for different
XM modules. The following table applies only to the
XM-220. Refer to the installation instructions for the
specific XM module for its terminal assignments.
EXPLOSION HAZARD
Do not disconnect equipment unless power has been
removed or the area is known to be nonhazardous.
Do not disconnect connections to this equipment unless
power has been removed or the area is known to be
nonhazardous. Secure any external connections that mate
to this equipment by using screws, sliding latches, threaded
connectors, or other means provided with this product.
Terminal Block Assignments
No.NameDescription
0Xducer 1 (+)Transducer 1 connection
1Xducer 2 (+)Transducer 2 connection
2Buffer 1 (+)Signal 1 buffered output
3Buffer 2 (+)Signal 2 buffered output
4Switched Buffer (+)Switched buffered output for use with redundant mode
5Buffer Power 1 INChannel 1 buffer power input
Connect to terminal 6 for positive biased transducers or terminal 21 for
negative biased transducers
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Installing the XM-220 Dual Speed Module 19
Terminal Block Assignments
No.NameDescription
6Positive Buffer BiasProvides positive (-5V to +24V) voltage compliance to buffered outputs
Connect to terminals 5 (CH 1) and 22 (CH 2) for positive bias transducers
7TxDPC serial port, transmit data
8RxDPC serial port, receive data
9
XRTN
1
Circuit return for TxD and RxD
10Chassis Connection to DIN rail ground spring or panel mounting hole
114-20mA 1 (+)4-20mA output
124-20mA 1 (-)
300 ohm maximum load
13Chassis Connection to DIN rail ground spring or panel mounting hole
14Chassis Connection to DIN rail ground spring or panel mounting hole
15Chassis Connection to DIN rail ground spring or panel mounting hole
16
17
18
Xducer 1 (-)
Xducer 2 (-)
Buffer Common
19Overspeed/Circuit
Fault
1
1
Transducer 1 connection
Transducer 2 connection
1
Buffered output return
Overspeed and circuit fault output signal
Used as input by the EODS Relay module
20Switched Buffer (-)Switched buffered output for use with redundant mode (inverted signal)
21Buffer/Xducer Pwr (-) Provides negative (-24V to +9V) voltage compliance to buffered outputs
Connect to terminals 5 (CH 1) and 22 (CH 2) for negative bias transducers
Transducer power supply output, negative side; used to power external
sensors (40mA maximum load)
22Buffer Power 2 INChannel 2 buffer power input
Connect to terminal 6 for positive biased transducers or terminal 21 for
negative biased transducers
23CAN_High DeviceNet bus connection, high differential (white wire)
24CAN_Low DeviceNet bus connection, low differential (blue wire)
25+24V OutInternally connected to 24V In 1 (terminal 44)
Used to daisy chain power if XM modules are not plugged into each other
26DNet V (+) DeviceNet bus power input, positive side (red wire)
27DNet V (-)DeviceNet bus power input, negative side (black wire)
28
24V Common
1
Internally connected to 24V Common (terminals 43 and 45)
Used to daisy chain power if XM modules are not plugged into each other
If power is not present on terminal 44, there is no power on this terminal
294-20mA 2 (+)4-20mA output
304-20mA 2 (-)
300 ohm maximum load
31Chassis Connection to DIN rail ground spring or panel mounting hole
32ChassisConnection to DIN rail ground spring or panel mounting hole
33ChassisConnection to DIN rail ground spring or panel mounting hole
34Chassis Connection to DIN rail ground spring or panel mounting hole
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20 Installing the XM-220 Dual Speed Module
Terminal Block Assignments
No.NameDescription
35Chassis Connection to DIN rail ground spring or panel mounting hole
36Chassis Connection to DIN rail ground spring or panel mounting hole
37Chassis Connection to DIN rail ground spring or panel mounting hole
38Chassis Connection to DIN rail ground spring or panel mounting hole
39Start Switch input to activate startup switch (active closed)
40Switch RTNSwitch return for Start and Reset Relay
41Reset RelaySwitch input to reset internal relay (active closed)
42+24V In 2 (EODS
ONLY)
43
24V Common
1
Connection to an external +24V power supply, positive side, when used as
a part of an EODS system
2
Connection to external +24V power supply, negative side (internally
DC-coupled to circuit ground)
44+24V InConnection to primary external +24V power supply, positive side
45
24V Common
1
Internally DC-coupled to circuit ground
46Relay N.C. 1Relay Normally Closed contact 1
47Relay Common 1Relay Common contact 1
48Relay N.O. 1Relay Normally Open contact 1
49Relay N.O. 2Relay Normally Open contact 2
50Relay Common 2Relay Common contact 2
51Relay N.C. 2Relay Normally Closed contact 2
1 Terminals are internally connected and isolated from the Chassis terminals.
2 When the XM-220 is used as part of an Electronic Overspeed Detection System, redundant power may be
applied directly to the module per the XM Electronic Overspeed Detection System User Guide, publication
GMSI10-UM015A-EN-E.
Connecting the Power Supply
Publication GMSI10-UM004B-EN-P - May 2010
Power supplied to the module must be nominally 24 Vdc (±10%) and must be
a Class 2 rated circuit.
Wire the DC-input power supply to the terminal base unit as shown in Figure
2.8.
Installing the XM-220 Dual Speed Module 21
-
24V dcPowerSupply
+
-
IMPORTANT
IMPORTANT
IMPORTANT
ATTENTION
Figure 2.8 DC Input Power Supply Connections
A Class 2 circuit can be provided by use of an NEC Class 2
rated power supply, or by using a SELV or PELV rated
power supply with a 5 Amp current limiting fuse installed
before the XM module(s).
24Vdc needs to be wired to terminal 44 (+24 V In) to
provide power to the device and other XM modules linked
to the wired terminal base via the side connector.
When the XM-220 is used as part of an Electronic
Overspeed Detection System, redundant power may be
applied directly to the module per the XM Electronic
Overspeed Detection System User Guide, publication
GMSI10-UM015A-EN-E.
The power connections are different for different XM
modules. Refer to the installation instructions for your
specific XM module for complete wiring information.
Connecting the Relays
The XM-220 has both Normally Open (NO) and Normally Closed (NC) relay
contacts. Normally Open relay contacts close when the control output is
energized. Normally Closed relay contacts open when the control output is
energized.
Publication GMSI10-UM004B-EN-P - May 2010
22 Installing the XM-220 Dual Speed Module
IMPORTANT
TIP
IMPORTANT
The alarms associated with the relay and whether the relay is normally
de-energized (non-failsafe) or normally energized (failsafe) depends on the
configuration of the module. Refer to Relay Parameters on page 53 for details.
Table 2.1 shows the on-board relay connections for the module.
All XM relays are double pole. This means that each relay
has two contacts in which each contact operates
independently but identically. The following information
and illustrations show wiring solutions for both contacts;
although, in many applications it may be necessary to wire
only one contact.
The Expansion Relay module may be connected to the
XM-220 to provide additional relays. Refer to the XM-441
Expansion Relay Module User Guide for wiring details.
The NC/NO terminal descriptions (page 20) correspond
T
to a de-energized (unpowered) relay.
When the relay is configured for non-failsafe operation, the
relay is normally de-energized.
When the relay is configured for failsafe operation, the
relay is normally energized, and the behavior of the NC and
NO terminals is inverted.
Table 2.1 Relay Connections for XM-220
Configured for
Failsafe OperationRelay 1 Terminals
NonalarmAlarmWire ContactsContact 1Contact 2
Closed OpenedCOM 47 50
NO4849
OpenedClosedCOM 4750
NC4651
Configured for
Non-failsafe OperationRelay 1 Terminals
Publication GMSI10-UM004B-EN-P - May 2010
NonalarmAlarmWire ContactsContact 1Contact 2
ClosedOpenedCOM4750
NC4651
OpenedClosedCOM4750
NO4849
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