XM-320 Position Module
User Guide
Firmware Revision 5
1440-TPS02-01RB
Important User Information
WARNING
IMPORTANT
ATTENTION
SHOCK HAZARD
BURN HAZARD
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.
Model Catalog Number Haz Location Drawings* Model Catalog Number Haz Location Drawings*
w/o
Barriers
XM-120 1440-VST0201RA
XM-121 1440-VLF0201RA XM-360 1440-TPR0600RE
XM-122 1440-VSE0201RA XM-361 1440-TUN0600RE
XM-123 1440-VAD0201RA XM-361 1440-TTC0600RE
XM-160 1440-VDRS0600RH
XM-161 1440-VDRS0606RH XM-441 1440-REX0004RD 48241-HAZ N/A
XM-162 1440-VDRP0600RH XM-442 1440-REX0304RG 48642-HAZ N/A
XM-220 1440-SPD0201RB 48640-HAZ 48641-HAZ
48178-HAZ 48179-HAZ
51263-HAZ 51264-HAZ
* Drawings are available on the included CD
w/
Barriers
w/o
Barriers
XM-320 1440-TPS0201RB 48238-HAZ 48239-HAZ
48295-HAZ 48299-HAZ
XM-440 1440-RMA0004RC 48240-HAZ N/A
w/
Barriers
Introduction
Installing the XM-320 Position
Module
Table of Contents
Chapter 1
Introducing the XM-320 Position Module . . . . . . . . . . . . . . . . . . . . . . . 1
XM-320 Module Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Using this Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Organization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Document Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Chapter 2
XM Installation Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Wiring Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Grounding Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Mounting the Terminal Base Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
DIN Rail Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Interconnecting Terminal Base Units . . . . . . . . . . . . . . . . . . . . . . . 17
Panel/Wall Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Connecting Wiring for Your Module . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Terminal Block Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Connecting the Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Connecting the Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Connecting the Short Circuit Protected Output . . . . . . . . . . . . . . 26
Connecting the Remote Relay Reset Signal . . . . . . . . . . . . . . . . . . 27
Connecting the Setpoint Multiplication Switch . . . . . . . . . . . . . . . 29
Connecting the 4-20mA Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Connecting the Transducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
PC Serial Port Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
DeviceNet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Mounting the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Module Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Basic Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Powering Up the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Manually Resetting Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Chapter 3
Configuration Parameters
v Publication GMSI10-UM005C-EN-P - May 2010
Channel Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Measurement Mode Parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Normal Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Head-To-Head Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Radial Cancel Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Alarm Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Relay Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
4-20mA Output Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Triggered Trend Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
I/O Data Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Table of Contents vi
Specifications
DeviceNet Information
Data Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Channel Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Alarm and Relay Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Device Mode Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Appendix A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Appendix B
Electronic Data Sheets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Changing Operation Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Transition to Program Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Transition to Run Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
XM Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Invalid Configuration Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
XM-320 I/O Message Formats. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Poll Message Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
COS Message Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Bit-Strobe Message Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
ADR for XM Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
DeviceNet Objects
Appendix C
Identity Object (Class ID 01H) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Class Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Instance Attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
DeviceNet Object (Class ID 03H) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Class Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Instance Attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Assembly Object (Class ID 04H) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Class Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Instances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Instance Attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Assembly Instance Attribute Data Format. . . . . . . . . . . . . . . . . . . 88
Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Connection Object (Class ID 05H). . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Class Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Instances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Instance Attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Publication GMSI10-UM005C-EN-P - May 2010
Table of Contents vii
Discrete Input Point Object (Class ID 08H) . . . . . . . . . . . . . . . . . . . . 92
Class Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Instance Attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Analog Input Point Object (Class ID 0AH). . . . . . . . . . . . . . . . . . . . . 93
Class Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Instances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Instance Attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Parameter Object (Class ID 0FH). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Class Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Instances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Instance Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Acknowledge Handler Object (Class ID 2BH) . . . . . . . . . . . . . . . . . . 98
Class Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Instances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Instance Attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Alarm Object (Class ID 31DH) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Class Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Instances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Instance Attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Device Mode Object (Class ID 320H) . . . . . . . . . . . . . . . . . . . . . . . . 101
Class Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Instance Attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Relay Object (Class ID 323H) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Class Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Instances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Instance Attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Transducer Object (Class ID 328H) . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Class Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Instances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Instance Attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
4-20mA Output Object (Class ID 32AH) . . . . . . . . . . . . . . . . . . . . . 106
Class Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Instances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Instance Attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Glossary
Index
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Publication GMSI10-UM005C-EN-P - May 2010
Table of Contents viii
Publication GMSI10-UM005C-EN-P - May 2010
Chapter
Introduction
This chapter provides an overview of the XM-320 Position module. It also
discusses the components of the module.
For information about See page
Introducing the XM-320 Position Module 1
XM-320 Module Components 3
Using this Manual 4
1
Introducing the XM-320 Position Module
The XM-320 Position module is a 2-channel general purpose monitor. It is a
®
member of the Allen-Bradley™ XM
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-320 supports the following measurements:
• Axial Position (Thrust) - Axial position (thrust) is a measurement of
the relative position of the thrust collar to the thrust bearing. It is a
measurement that may be made in both the active and inactive thrust
directions. The primary purpose of this measurement is to monitor
thrust bearing wear and to insure against axial rubs. It is recommended
that at least two separate transducers monitor axial position so that the
redundancy will give added protection.
Most steam turbine rotors operate within the total clearance between
thrust shoes (float). Normally this clearance is anywhere from 0.010 to
0.024 inches. The axial measurements are obtained by mounting a
non-contact probe axially, looking at the thrust collar or shaft. The
sensor provides a continuous measurement of the rotor position with
respect to the thrust bearing. In most applications, the thrust detector is
located in close proximity to the thrust bearing, normally located in the
turbine front standard.
Series, a family of DIN rail mounted
1 Publication GMSI10-UM005C-EN-P - May 2010
2 Introduction
• Cam (Valve) Position - Valve position is a measurement of the main
steam inlet valve stem position. The valve position measurement
provides the operator with the current load on the machine.
The amount of the steam valve opening, speed, governor, and relay
valve position indication assists the operator in controlling the unit
during startup and emergencies. When used in conjunction with data
from other related Turbine Supervisory Instrumentation (TSI)
indicators, load, or steam flow related machinery conditions can be
diagnosed.
• Shell (Case) Expansion - Shell (Case) expansion is a measurement of
the thermal growth of the case from its fixed point outward. Steam
temperature swings widely between startup, shutdown, and various
operating conditions. The high pressure turbine end must move axially
as expansion and contraction occurs. Continuous indication of shell
thermal growth enables the operator to accelerate or change turbine
load without excessive distortion of the machine shell.
• Differential Expansion - Differential expansion (DE) is a
measurement of the differences between the thermal growth of the
rotor compared to the case.
Differential expansion monitoring provides the machine operator with
continuous indication of the critical clearances between the expanding
rotor and blades with respect to the expanding shell or casing. Proper
coordination of machine parameters enables safe machine acceleration
and operation during load changes and emergencies. To prevent axial
rubs it is important that the rotor and case grow at the same rate.
Differential expansion is most important during a turbine “cold”
startup. The rotor is fixed axially by the thrust bearing. The thrust
bearing moves as the case expands – thus the need to monitor the
difference in thermal expansion. Ideally, differential expansion should
indicate zero change in the gap relationship between the two surfaces.
When the shell growth leads or lags the rotor growth, or conversely the
rotor expansion leads or lags the shell growth, an expansion differential
occurs.
The XM-320 accepts input from linear variable differential transformers
(LVDT), non-contact eddy current probes, rotary cam (valve) potentiometers,
or any voltage output position measurement device.
Publication GMSI10-UM005C-EN-P - May 2010
Introduction 3
P
O
S
I
T
I
O
N
1
4
4
0
-
T
P
S
0
2
-
0
1
R
B
XM-941 Position Module Terminal Base Unit
Cat. No. 1440-TB-B
XM-320 Position Module
Cat. No. 1440-TPS02-01RB
The XM-320 also includes a single on-board relay, expandable to five, two
4-20mA outputs, and a buffered output for each input. The module can collect
trend data on event, and monitor up to two alarms making it a complete
position monitoring system. The module 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, DCS, and
Condition Monitoring Systems.
The XM-320 module is configurable over a DeviceNet network or using a
serial connection to a PC or laptop. Refer to Chapter 3 for a list of the XM-320
configuration parameters.
XM-320 Module Components
The XM-320 consists of a terminal base unit and an instrument module. The
XM-320 Position Module and the XM-941 Position Terminal Base are shown
below.
Figure 1.1 XM-320 Module Components
• XM-941 Position Module Terminal Base Unit - A DIN rail mounted
base unit that provides terminations for all field wiring required by XM
Position modules, including the XM-320.
Publication GMSI10-UM005C-EN-P - May 2010
4 Introduction
IMPORTANT
• XM-320 Position Module - Mounts on the XM-941 terminal base unit
via a keyswitch and a 96-connector. The XM-320 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-320 module via the XM-941 terminal base unit.
When connected to the XM-320, the Expansion Relay
module simply “expands” the capability of the XM-320 by
adding four additional epoxy-sealed relays. The XM-320
controls the Expansion Relay module by extending to it the
same logic and functional controls as the XM-320 module’s
on-board relay.
Using this Manual
This manual introduces you to the XM-320 Position module. It is intended for
anyone who installs, configures, or uses the XM-320 Position 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-320 module.
Chapter 2 “Installing the XM-320 Position Module” describes how to install,
wire, and use the XM-320 module.
Chapter 3 “Configuration Parameters” provides a complete listing and
description of the XM-320 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-320
module.
Publication GMSI10-UM005C-EN-P - May 2010
Appendix B “DeviceNet Information” provides information to help you
configure the XM-320 over a DeviceNet network.
Appendix C “DeviceNet Objects” provides information on the DeviceNet
objects supported by the XM-320 module.
For definitions of terms used in this Guide, see the Glossary at the end of the
Guide.
Introduction 5
TIP
EXAMPLE
Document Conventions
There are several document conventions used in this manual, including the
following:
The XM-320 Position Module is referred to as XM-320, Position module,
module, or device throughout this manual.
A tip indicates additional information which may be
helpful.
This convention presents an example.
Publication GMSI10-UM005C-EN-P - May 2010
6 Introduction
Publication GMSI10-UM005C-EN-P - May 2010
Chapter
ATTENTION
2
Installing the XM-320 Position Module
This chapter discusses how to install and wire the XM-320 Position Module. It
also describes the module indicators and the basic operations of the module.
For information about See page
XM Installation Requirements 8
Mounting the Terminal Base Unit 15
Connecting Wiring for Your Module 19
Mounting the Module 39
Module Indicators 41
Basic Operations 43
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.
7 Publication GMSI10-UM005C-EN-P - May 2010
8 Installing the XM-320 Position 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
• Recommended strip length 8 millimeters (0.31 inches)
• Minimum insulation rating of 300V
• Soldering the conductor is forbidden
• 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-UM005C-EN-P - May 2010
Installing the XM-320 Position Module 9
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
Output Voltage 24 Vdc ± 10%
Output Power 100 Watts Maximum (~4A @ 24 Vdc)
Static Regulation ± 2%
Dynamic Regulation ± 3%
Ripple < 100mVpp
Output Noise Per EN50081-1
Overshoot < 3% at turn-on, < 2% at turn-off
Hold-up Time As 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
Fused* ITE Listed SELV supply, or
Fused* ITE Listed PELV supply
Publication GMSI10-UM005C-EN-P - May 2010
10 Installing the XM-320 Position 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-UM005C-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-320 Position Module 11
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-UM005C-EN-P - May 2010
12 Installing the XM-320 Position 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-UM005C-EN-P - May 2010
Figure 2.5 Panel/Wall Mount Grounding
Power
Supply
Power
Supply
1
1
Installing the XM-320 Position Module 13
1 Use 14 AWG wire.
Publication GMSI10-UM005C-EN-P - May 2010
14 Installing the XM-320 Position 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 20
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-UM005C-EN-P - May 2010
Installing the XM-320 Position Module 15
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-320.
Publication GMSI10-UM005C-EN-P - May 2010
16 Installing the XM-320 Position 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 12.
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-UM005C-EN-P - May 2010
Installing the XM-320 Position Module 17
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.
Publication GMSI10-UM005C-EN-P - May 2010
18 Installing the XM-320 Position 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-UM005C-EN-P - May 2010
Installing the XM-320 Position Module 19
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-320 is compatible only with the XM-941 terminal
base unit, Cat. No. 1440-TB-B.
Publication GMSI10-UM005C-EN-P - May 2010
20 Installing the XM-320 Position 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-320 module are
shown below.
Terminal Block Assignments
The terminal block assignments are different for different
XM modules. The following table applies only to the
XM-320. 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.
No. Name Description
0 Xducer 1 (+) Transducer 1 connection
1 Xducer 2 (+) Transducer 2 connection
2 Protected Output 1
(+)
3 Protected Output 2
(+)
Short Circuit Protected Output 1, positive side
Short Circuit Protected Output 2, positive side
4 No Connection
5 No Connection
6 Xducer V (+) Transducer power supply output, positive side
Publication GMSI10-UM005C-EN-P - May 2010
Terminal Block Assignments
Installing the XM-320 Position Module 21
No. Name Description
7 TxD PC serial port, transmit data
8 RxD PC serial port, receive data
9 XRTN Circuit return for TxD and RxD
10 Chassis Connection to DIN rail ground spring or panel mounting hole
11 4-20mA 1 (+) 4-20mA output
12 4-20mA 1 (-)
600 ohm maximum load
13 Chassis Connection to DIN rail ground spring or panel mounting hole
14 Chassis Connection to DIN rail ground spring or panel mounting hole
15 Chassis Connection to DIN rail ground spring or panel mounting hole
16 Xducer 1 (-) Transducer 1 connection
17 Xducer 2 (-) Transducer 2 connection
18 Protected Output 1
Short Circuit Protected Output 1, negative side
(-)
19 Protected Output 2
Short Circuit Protected Output 2, negative side
(-)
20 No Connection
21 No Connection
22 Xducer V (-) Transducer power supply output, negative side
23 CAN_High DeviceNet bus connection, high differential (white wire)
24 CAN_Low DeviceNet bus connection, low differential (blue wire)
25 +24V Out Internally connected to 24V In (terminal 44)
Used to daisy chain power if XM modules are not plugged into
each other
26 DNet V (+) DeviceNet bus power input, positive side (red wire)
27 DNet V (-) DeviceNet bus power input, negative side (black wire)
28 24V Common Internally connected to 24V Common (terminals 43 and 45)
Used to daisy chain power if XM modules are not plugged into
each other
29 4-20mA 2 (+) 4-20mA output
30 4-20mA 2 (-)
600 ohm maximum load
31 Chassis Connection to DIN rail ground spring or panel mounting hole
32 Chassis Connection to DIN rail ground spring or panel mounting hole
33 Chassis Connection to DIN rail ground spring or panel mounting hole
34 Chassis Connection to DIN rail ground spring or panel mounting hole
35 Chassis Connection to DIN rail ground spring or panel mounting hole
36 Chassis Connection to DIN rail ground spring or panel mounting hole
37 Chassis Connection to DIN rail ground spring or panel mounting hole
38 Chassis Connection to DIN rail ground spring or panel mounting hole
Publication GMSI10-UM005C-EN-P - May 2010
22 Installing the XM-320 Position Module
-
24V dc
Power
Supply
+
-
Terminal Block Assignments
No. Name Description
39 SetPtMult Switch input to activate Set Point Multiplication (active closed)
40 Switch RTN Switch return, shared between SetPtMult and Reset Relay
41 Reset Relay Switch input to reset internal relay (active closed)
42 Reserved
43 24V Common Internally DC-coupled to circuit ground
44 +24V In Connection to primary external +24V power supply, positive
side
45 24V Common Connection to external +24V power supply, negative side
(internally DC-coupled to circuit ground)
46 Relay N.C. 1 Relay Normally Closed contact 1
47 Relay Common 1 Relay Common contact 1
48 Relay N.O. 1 Relay Normally Open contact 1
49 Relay N.O. 2 Relay Normally Open contact 2
50 Relay Common 2 Relay Common contact 2
51 Relay N.C. 2 Relay Normally Closed contact 2
Connecting the Power Supply
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.
Figure 2.8 DC Input Power Supply Connections
Publication GMSI10-UM005C-EN-P - May 2010