Rockwell Automation Library of Process Objects: Variable
Speed Drive (P_VSD)
Version 3.5
IMPORTANT
This manual applies to the Rockwell Automation Library of Process Objects version 3.5 or earlier.
For Rockwell Automation Library of Process Objects version 5.0, see
• PROCES-RM200
For Rockwell Automation Library of Process Objects version 4.0 or later, use the following manuals:
• PROCES-RM013 contains logic instructions
• PROCES-RM014 contains display elements
Page 2
Important User Information
Read this document and the documents listed in the additional resources section about installation, configuration, and
operation of this equipment before you install, configure, operate, or maintain this product. Users are required to
familiarize themselves with installation and wiring instructions in addition to requirements of all applicable codes, laws,
and standards.
Activities including installation, adjustments, putting into service, use, assembly, disassembly, and maintenance are required
to be carried out by suitably trained personnel in accordance with applicable code of practice.
If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be
impaired.
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.
WARNING: 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.
ATTENTION: 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.
IMPORTANT
Identifies information that is critical for successful application and understanding of the product.
Labels may also be on or inside the equipment to provide specific precautions.
SHOCK HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous
voltage may be present.
BURN HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may
reach dangerous temperatures.
ARC FLASH HAZARD: Labels may be on or inside the equipment, for example, a motor control center, to alert people to
potential Arc Flash. Arc Flash will cause severe injury or death. Wear proper Personal Protective Equipment (PPE). Follow ALL
Regulatory requirements for safe work practices and for Personal Protective Equipment (PPE).
Allen-Bradley, Rockwell Software, and Rockwell Automation are trademarks of Rockwell Automation, Inc.
Trademarks not belonging to Rockwell Automation are property of their respective companies.
Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 20173
Page 4
Table of Contents
Notes:
4Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 2017
Page 5
Preface
Software Compatibility and
Content Revision
Additional Resources
Table 1 - Summary of Changes
TopicPage
Visualization Files: Global Objects (.ggfx) - Process Diagnostic Objects12
For the latest compatible software information and to download the Rockwell
Automation® Library of Process Objects, see the Product Compatibility and
Download Center at
For general library considerations, see Rockwell Automation Library of Process
Objects Reference Manual, publication
PROCES-RM002.
These documents contain additional information concerning related products
from Rockwell Automation.
Table 2 - Additional Resources
ResourceDescription
PlantPAx® Distributed Control System Selection Guide,
publication
PlantPAx Distributed Control System Reference Manual,
publication
Rockwell Automation Library of Process Objects Reference
Manual, publication
FactoryTalk® View Machine Edition User Manual,
publication
FactoryTalk View Site Edition User Manual,
publication
PowerFlex® 70 Adjustable Frequency AC Drives User
Manual, Publication
PowerFlex 700 Adjustable Frequency AC Drives User
Manual, Publication
PowerFlex 700H Adjustable Frequency AC Drives
Programming Manual, Publication
PowerFlex 700S Adjustable Frequency AC Drives Phase II
Programming Manual, Publication
PowerFlex Digital DC Drive User Manual,
Publication
PowerFlex 4 Adjustable Frequency AC Drive User Manual,
Publication
PROCES-SG001
PROCES-RM001
PROCES-RM002
VIEWME-UM004
VIEWSE-UM006
20A-UM001
20B-UM001
20C-PM001
20D-PM001
20P-UM001
22A-UM001
Provides information to assist with equipment
procurement for your PlantPAx system.
Provides characterized recommendations for
implementing your PlantPAx system.
Provides general considerations for the PlantPAx system
library of process objects.
Provides details on how to use this software package for
creating an automation application.
Provides details on how to use this software package for
developing and running human-machine interface (HMI)
applications that can involve multiple users and servers,
distributed over a network.
Provides basic information needed to start-up, program,
and troubleshoot the PowerFlex 70 Adjustable Frequency
AC Drive.
Provides basic information needed to start-up, program,
and troubleshoot the PowerFlex 700 Adjustable
Frequency AC Drive.
Provides basic information needed to start-up, program,
and troubleshoot the PowerFlex 700H Adjustable
Frequency AC drive.
Provides information needed to start-up, program, and
troubleshoot the PowerFlex 700S Phase II Adjustable
Frequency AC drives.
Provides basic information required to install, start-up,
and troubleshoot the PowerFlex DC drive.
Provide basic information needed to install, start-up, and
troubleshoot the PowerFlex 4 AdjustableFrequency
AC Drive.
Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 20175
Page 6
Preface
Table 2 - Additional Resources
ResourceDescription
PowerFlex 40 Adjustable Frequency AC Drive User Manual,
Publication 22B-UM001
PowerFlex 400 Adjustable Frequency AC Drive for Fan &
Pump Applications User Manual, Publication
PowerFlex 40P Adjustable Frequency AC Drive User
Manual, Publication
PowerFlex 4M Adjustable Frequency AC Drive User
Manual, Publication
Rockwell Automation Library of Process Objects: Common
Alarm Block (P_Alarm) Reference Manual,
publication
Rockwell Automation Library of Process Objects:
Interlocks with First Out and Bypass (P_Intlk) Reference
Manual, publication
Rockwell Automation Library of Process Objects: Common
Mode Block (P_Mode) Reference Manual,
publication
Rockwell Automation Library of Process Objects:
Permissives with Bypass (P_Perm) Reference Manual,
publication
Rockwell Automation Library of Process Objects: Restart
Inhibit for Large Motor (P_ResInh) Reference Manual,
publication
Rockwell Automation Library of Process Objects: Run Time
and Starts (P_RunTime) Reference Manual,
publication
22D-UM001
22F-UM001
SYSLIB-RM002
SYSLIB-RM004
SYSLIB-RM005
SYSLIB-RM007
SYSLIB-SYSLIB-RM009
SYSLIB-RM010
22C-UM001
Provides basic information needed to install, start-up, and
troubleshoot the PowerFlex 40 Adjustable Frequency
AC Drive.
Provides basic information needed to install, start-up, and
troubleshoot the PowerFlex 400 Adjustable Frequency
AC Drive.
Provides basic information needed to install, start-up, and
troubleshoot the PowerFlex 40P Adjustable Frequency
AC Drive.
Provides basic information needed to install, start-up and
troubleshoot the PowerFlex 4M Adjustable Frequency
AC Drive.
Details how to monitor an input condition to raise an
alarm. Information includes acknowledging, resetting,
inhibiting, and disabling an alarm. Generally the P_Alarm
faceplate is accessible from the Alarms tab.
Explains how to collect (sum up) the interlock conditions
that stop or de-energize a running or energized piece of
equipment or prevent it from starting or being energized.
Explains how to choose the Mode (owner) of an
instruction or control strategy. The Mode instruction is
usually embedded within other instructions to extend
their functionality. It is possible to use a standalone Mode
instruction to enhance a program where modes are
wanted.
Details how to collect permissive conditions to start a
piece of equipment.
Explains how to protect a large motor from damage
caused by repeated starts.
Explains how to accumulate the total run time and count
of starts for a motor or other equipment.
You can view or download publications at
http:/www.rockwellautomation.com/literature/. To order paper copies of
technical documentation, contact your local Allen-Bradley distributor or
Rockwell Automation sales representative.
6Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 2017
Page 7
Variable Speed Drive (P_VSD)
The P_VSD (Variable Speed Drive) Add-On Instruction is used to operate one
variable speed motor by using a drive (AC variable frequency or DC) in various
modes, monitoring for fault conditions.
Add-On Instruction
Faceplate
Guidelines
Global Object
Use this instruction when you need to operate a motor that is connected to a
variable speed drive. The drive can be an AC (variable frequency) or DC drive,
and can be connected via an I/O or control network (intelligent drive) or via
hard-wired analog and discrete I/O.
This instruction is designed to work with all currently available and many legacy
Allen-Bradley® drives, including Bulletin 1336 Plus™ II, Bulletin 1395,
PowerFlex 4/40/70/700/7000 and PowerFlex DC Drives. This instruction also
works with drives and other variable-speed motor control products via discrete
I/O for the start/stop/running signals and analog I/O for the speed reference
and speed feedback signals.
Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 20177
Page 8
Variable Speed Drive (P_VSD)
Do not use this instruction in these situations:
• You are using a PowerFlex 753 or PowerFlex 755 drive. The P_PF52x,
P_PF753, and P_PF755 Add-On Instructions provide enhanced
diagnostics and monitoring for these drive families.
ou are using a PowerFlex 523 or PowerFlex 525 drive. The P_PF52x
• Y
A
dd-On Instruction provides enhanced diagnostics and monitoring for
these dr
• Y
P_M
• Y
P
• Y
on
• Y
s
motors with continuously variable (analog) speed, not multiple discrete
speed selections. The P_D4SD instruction can be suitable for these
motors.
ive families.
ou need to operate a single-speed motor (running/stopped only). Use the
otor instruction instead.
ou need to operate a two-speed motor (fast/slow/stopped only). Use the
_Motor2Spd instruction instead.
ou need to operate a simple reversing motor (forward/reverse/stopped
ly). Use the P_MotorRev instruction instead.
ou need to operate a motor with multiple discrete speeds. You need
pecific logic for this motor. The P_VSD instruction is designed for
Functional Description
The P_VSD instruction provides the following capabilities:
• Ownership of the drive through the standard P_Mode Add-On
nstruction and modes. Modes of operation are described below.
I
bility to start and stop the drive and motor, control the drive speed (via
• A
s
peed reference), and monitor the drive run status and speed feedback to
verify the drive is running or stopped.
larms and drive shut down for Fail to Start and Fail to Stop if the
• A
fe
edback does not follow the commanded state within a configured
amount of time. This shut down happens whether the drive has run
feedback can be configured at the engineer level or whether to use the run
feedback can be configured at the maintenance level.
caling of the speed reference from user (engineering) units, such as RPM,
• S
o drive units, such as 32,767 = maximum frequency.
t
caling of the speed feedback from drive units to user (engineering) units
• S
a
nd display with suitable units of measure text.
• Opt
• Opt
• R
• I
• Opt
ional setting (by Program or Operator) of an output datalink and
sca
ling of this setting from engineering units (such as ramp time in
seconds) to drive raw units.
ional reading of an input datalink and scaling of this value from drive
r
aw units to engineering units (such as amperes) for display on the HMI.
eading from the drive and displaying a fault code, and displaying a text
f
ault description based on the fault code.
ndication of Accelerating, Decelerating, At Speed, and Warning or Alarm
s
tatus as received from the drive.
ional capability to support reversing drives, with commands for
fo
rward and reverse rotation and display of actual rotation direction.
8Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 2017
Page 9
Variable Speed Drive (P_VSD)
• Input and alarm for drive fault condition and an output to send a drive
fault reset to the drive.
nfigurable time to pulse the drive fault reset output when a reset
• Co
com
mand is received.
bove inputs and outputs formatted to work with any drives commonly
• A
use
d in the Process industries, including, but not limited to, 1336 Plus II,
1395, PowerFlex 4/40/70/700/7000 and PowerFlex DC, in a form that
still allows use with non-Allen-Bradley drives via hard-wired I/O.
ermissives (bypassable and non-bypassable) that are conditions that allow
• P
the drive to start, and interlocks (bypassable and non-bypassable) that are
conditions that stop the drive and prevent starting.
larm when an interlock stops the drive.
• A
• Capability for maintenance personnel to bypass the bypassable permissives
nterlocks.
and i
apability for maintenance personnel to disable (soft lock out) the drive.
• C
IMPORTANT
This capabilit
y is not a substitute for hard lockout/target (LOTO)
procedures.
• M
onitors I/O communication, and alarms and shuts down on a
munication fault.
com
erates in Hand, Maintenance, Override, Program, and Operator
• Op
modes
.
vailable status for use by automation logic to determine if other program
• A
log
ic can start and stop the motor.
onitor an I/O fault input, alarm on an I/O fault.
• M
• I/O fault condition can optionally de-energize the outputs to the drive,
quiring a reset.
re
verride State input that determines whether the override is to run or stop
• O
the dr
ive (default = stop) and, if the drive is to run, an override speed
reference and direction. See the following modes for more information on
override.
mulation capability, in which the outputs to the drive are kept de-
• Si
energized, but the object can be manipulated as if a working drive were
present, including a basic ramp-up of speed feedback value on starting and
ramp-down on stopping. The simulated ramp-up-to-speed time is
configurable. This capability is often used for activities such as system
testing and operator training.
Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 20179
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Variable Speed Drive (P_VSD)
Required Connections for a Hardwired Drive
Table 3 shows the minimum set of connections to make the P_VSD instruction
work with an Allen-Bradley or third-party drive, assuming the drive is
non-reversing.
The P_VSD instruction is written around the typical command and status words,
speed reference, and speed feedback used with Allen-Bradley PowerFlex drives.
Pins are individually available to connect to whatever drive you have,
1336 Plus™ II, PowerFlex 4, PowerFlex 40, PowerFlex 70EC, PowerFlex 700,
PowerFlex 7000, and so on. These can connect over the EtherNet/IP network (in
which case the signals have similar, but not identical names), or over DeviceNet,
ControlNet, any other network, or over hardwired I/O.
Table 3 - Using P_VSD Instruction with a Non-reversing Hardwired (Allen-Bradley or third-party)
Drive
ParameterDescription
Inputs
Inp_SpeedFdbkWe recommend that you set this value to represent the drive speed; otherwise, the display
Input_ReadyThis parameter must be set to 1 for the instruction to allow starting the drive. It's best if
Inp_RunningThis parameter must be wired from the run feedback, an IREF with the input bit or an XIC-
Inp_CommandDir,
Inp_ActualDir
Inp_Accelerating,
Inp_Decelerating,
Inp_Alarm, Inp_Faulted,
and Inp_AtSpeed
Outputs
Out_SpeedRefConnect to the (analog) output to the drive to set the speed.
Out_RunIf the discrete output is 1 to run and 0 to stop, use Out_Run and not Out_Start, Out_Stop,
Out_ClearFaultIf you wired a Drive Fault input above and have an output to the drive to attempt to clear
Other outputsOther outputs can be left unconnected and unreferenced.
indicates zero speed.
The value can be live speed feedback or it can be a loopback of the speed reference output
to the drive.
Make sure you set 'Assume Data Available' if this is a loopback of the output used in
Function Block Diagram (FBD) logic.
Inp_Ready is actively written to '1'.
In FBD, connect an IREF that is a '1' (program constant).
In LD, code an unconditional OTL to this parameter.
This parameter can be 'left at' 1, but if it ever gets zeroed, the Add-On Instruction does not
allow a start.
OTE rung.
This parameter must be set to or left at 1 (forward). (See the following for reversing
drives.)
These parameters are optional.
We recommend that you clear or leave at 0 any parameters that are not used, unless you
have an input that indicates a drive fault (1=Fault, 0=OK). If you do have an input that
indicates a drive fault, we recommend that you wire it to Inp_Faulted.
or Out_Jog.
In FBD, you can expose the Out_Run pin (use the dialog box opened by the 'ellipsis') and
hide the others. Then wire it to an OREF on the output to the drive.
In LD, code an XIC of Out_Run and an OTE of the discrete output to the drive.
If there are separate outputs for start and stop, wire both to Out_Start and Out_Stop.
the fault, wire it to Out_ClearFault. Otherwise, leave this pin unconnected.
10Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 2017
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Variable Speed Drive (P_VSD)
Table 4 shows the minimum set of connections to make the P_VSD instruction
work with an Allen-Bradley or a third-party drive, assuming the drive is reversing.
Table 4 - Using P_VSD Instruction with a Reversing Hardwired (Allen-Bradley or third-party) Drive
ParameterDescription
Inp_CommandDirThis parameter must properly reflect the commanded direction.
Out_Fwd requests to set the drive to the forward direction, and Out_Rev requests to set
the drive to the reverse direction.
If the drive itself does not show the commanded direction, logic tied to Inp_CommandDir
must be provided to show the result of the requests. This can be done by using a
Set-dominant function block or a pair of rungs that set/latch Inp_CommandDir when
Out_Fwd is 1 and clear/unlatch Inp_CommandDir when Out_Rev is 1.
Inp_ActualDirMake sure this parameter reflects the actual rotation of the motor (1 = Forward,
Inp_SpeedFdbkThis parameter must reflect a non-negative speed (absolute value of speed). A negative
0 = Reverse).
value is not interpreted as running reverse.
At a minimum, Inp_CommandDir must be handled as stated above.
Required Files
Add-On Instructions are reusable code objects that contain encapsulated logic
that can streamline implementing your system. This lets you create your own
instruction set for programming logic as a supplement to the instruction set
provided natively in the ControlLogix® firmware. An Add-On Instruction is
defined once in each controller project, and can be instantiated multiple times in
your application code as needed.
Controller File
The P_VSD_3_5-00_AOI.L5X Add-On Instruction must be imported into the
controller project to be used in the controller configuration. The service release
number (boldfaced) can change as service revisions are created.
Visualization Files
This Add-On Instruction has associated visualization files that provide a
common user interface. These files can be downloaded from the Product
Compatibility and Download Center at
The visualization file dependencies require Process Library content imports to
occur in a specific order as reflected in the following tables:
• Images
• Global Objects
• Standard Displays
• HMI Tags
• Macros
Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 201711
Page 12
Variable Speed Drive (P_VSD)
Images are external graphic files that can be used in displays. They must be
imported for FactoryTalk View to make use of them.
When PNG files are imported, they are renamed by FactoryTalk View with
a .bmp file extension, but retain a .png format.
Table 5 - Visualization Files: Images (.png)
FactoryTalk View SE SoftwareFactoryTalk View ME SoftwareDescription
All .png files in the images folderAll .png files in the images folderThese are the common icons used in the global objects and
standard displays for all Process Objects.
The Global Object files (.ggfx file type) in the following table are Process Library
display elements that are created once and referenced multiple times on multiple
displays in an application. When changes are made to a Global Object, all
instances in the application are automatically updated.
Table 6 - Visualization Files: Global Objects (.ggfx)
FactoryTalk View SE SoftwareFactoryTalk View ME SoftwareDescription
(RA-BAS) Common Faceplate Objects(RA-BAS-ME) Common Faceplate ObjectsGlobal objects used on process object faceplates.
(RA-BAS) P_VSD Graphics Library(RA-BAS-ME) P_VSD Graphics LibraryDrive global object device symbols used to build
(RA-BAS) Process Alarm Objects(RA-BAS-ME) Process Alarm ObjectsGlobal objects used for managing alarms on process
(RA-BAS) Process Diagnostic Objects(RA-BAS-ME) Process Diagnostic ObjectsDiagnostic global objects used on process object
(RA-BAS) Process Faceplate Motor Objects(RA-BAS-ME) Process Faceplate Motor ObjectsMotor global objects used on process object faceplates.
(RA-BAS) Process Help Objects(RA-BAS-ME) Process Help ObjectsGlobal objects used for all process objects help displays.
(RA-BAS) Process Interlock Objects(RA-BAS-ME) Process Interlock ObjectsGlobal objects used for managing interlocks and
(RA-BAS) Process Mode Objects(RA-BAS-ME) Process Mode ObjectsGlobal objects used for managing modes on process
process graphics.
object faceplates.
faceplates.
permissives on process object faceplates.
object faceplates.
The Standard Display files (.gfx file type) in the following table are the Process
Library displays that you see at runtime.
Table 7 - Visualization Files: Standard Displays (.gfx)
FactoryTalk View SE SoftwareFactoryTalk View ME SoftwareDescription
(RA-BAS) Common-AnalogEditN/AFaceplate used for analog input data entry. The FactoryTalk
(RA-BAS) P_Alarm-Faceplate(RA-BAS-ME) P_Alarm-FaceplateThe faceplate that is used for managing alarms for
(RA-BAS) P_Alarm-Help(RA-BAS-ME) P_Alarm-HelpAlarm Help information that is accessed from the
(RA-BAS) P_Mode-Config(RA-BAS-ME) P_Mode-ConfigThe Configuration Display used to configure the
(RA-BAS) P_Mode-Help(RA-BAS-ME) P_Mode-HelpMode Help information that is accessed from the
(RA-BAS) P_VSD-Faceplate(RA-BAS-ME) P_VSD-FaceplateThe faceplate that is used for the object
(RA-BAS) P_VSD-Quick(RA-BAS-ME) P_VSD-QuickThe Quick display that is used for the object
12Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 2017
View ME faceplates use the native analog input data entry
so no file is required.
the object.
P_AIarm faceplate.
P_Mode object.
Help faceplate.
Page 13
Table 7 - Visualization Files: Standard Displays (.gfx)
FactoryTalk View SE SoftwareFactoryTalk View ME SoftwareDescription
(RA-BAS) Process Motor Family-Help(RA-BAS-ME) Process Motor Family-HelpThe Help display for Motor objects
RunTime faceplate display that is used for the object
Use this file if your object has an associated P_RunTime
object and you enable navigation to the P_RunTime
faceplate from the object faceplate.
(RA-BAS) Process Interlock Family-Help(RA-BAS-ME) Process Interlock Family-HelpOptional
Interlock/permissives help display that is used for
the object
Use this file if you use the P_Intlk or P_Perm faceplate.
Variable Speed Drive (P_VSD)
HMI Tags are created in a FactoryTalk View ME application to support tab
switching on Process Library faceplates. The HMI tags may be imported via the
comma-separated values file (.csv file type) in the following table.
Table 8 - Visualization Files: HMI Tags (.csv)
FactoryTalk View SE SoftwareFactoryTalk View ME SoftwareDescription
N/AFTVME_PlantPAxLib_Tags_3_5_xx.csv
where xx = the service release number.
These tags must be imported into the
FactoryTalk View ME project to support switching tabs on
any Process Object faceplate.
Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 201713
Page 14
Variable Speed Drive (P_VSD)
Controller Code
This section describes the parameter references for this Add-On Instruction.
Variable Speed Drive InOut Structure
InOut parameters are used to link the Add-On Instruction to external tags that
contain necessary data for the instruction to operate. These external tags must be
of the data type shown.
Table 10 - P_VSD Drive InOut Parameters
Tag NameData TypeDescription
Ref_FaultCodeListP_DescList[1]Array tag containing list of fault codes (DINT) and their descriptions (STRING_40).
This figure shows the drive fault table tags that are in each template.
To have fault codes in P_VSD, you must enter the name of the Fault Code List
(first column) in the P_VSD Ref_FaultCodeList parameter.
Each fault code list has preset codes and descriptions. You can use one of the fault
code lists provided by copying the tag from a template application. You can also
create your own by using the provided P_DescList data type.
14Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 2017
Page 15
Variable Speed Drive (P_VSD)
For a complete list of fault codes for a drive, click the Publication number
associated with the drive in the following table.
DrivePublication Number
PowerFlex Digital DC Drive
PowerFlex 4 Adjustable Frequency AC Drive
PowerFlex 40 Adjustable Frequency AC Drive
PowerFlex 400 Adjustable Frequency AC Drive for Fan & Pump Applications
PowerFlex 40P Adjustable Frequency AC Drive
PowerFlex 4M Adjustable Frequency AC Drive
PowerFlex 70 Adjustable Frequency AC Drives
PowerFlex 700 Adjustable Frequency AC Drive
PowerFlex 700H Adjustable Frequency AC Drive
PowerFlex 700S High Performance AC Drive - Phase II Control
20P-UM001
22A-UM001
22B-UM001
22C-UM001
22D-UM001
22F-UM001
20A-UM001
20B-UM001
20C-PM001
20D-PM001
Variable Speed Drive Input Structure
Input parameters include the following:
• Input data elements (Inp_) are typically used to connect field inputs from
I/O modules or signals from other objects.
nfiguration data elements (Cfg_) are used to set configurable
• Co
ca
pabilities and features of the instruction.
mmand data elements (PCmd_, OCmd_, MCmd_) are used by
• Co
p
rogram logic, operators, and maintenance personnel to request
instruction actions.
etting data elements (PSet_, OSet_, MSet_) are used by program logic,
• S
op
erators, and maintenance personnel to establish runtime setpoints,
thresholds, and so forth. Set_ data elements (without a leading P, O, or M)
establish runtime settings regardless of role or mode.
Table 11 - P_VSD Input Parameters
Input ParameterData
Type
EnableInBOOL1Ladder Diagram:
Inp_SpeedFdbkREAL0.0Speed feedback in drive units (for example, 0...32,767 = 0 to maximum
Inp_DatalinkINT0Auxiliary signal (datalink) input in drive (raw) units.
Inp_ReadyBOOL11 = Drive is ready to run.
Alias ForDefaultDescription
If the rung-in condition is true, the instruction’s Logic routine executes. If the
rung-in condition is false, the instruction’s EnableInFalse routine executes.
Function Block Diagram:
If true, or not connected, the instruction’s Logic routine executes. If the parameter
is exposed as a pin and wired, and the pin is false, the instruction’s EnableInFalse
routine executes.
Structured Text:
No effect. The instruction’s Logic routine executes.
frequency).
Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 201715
Page 16
Variable Speed Drive (P_VSD)
Table 11 - P_VSD Input Parameters
Input ParameterData
Type
Inp_RunningBOOL01 = Drive is running (active).
Inp_CommandDirBOOL11 = Drive is commanded forward.
Inp_ActualDirBOOL11 = Drive is running forward.
Inp_AcceleratingBOOL01 = Drive is accelerating or decelerating.
Inp_Decelerating
Inp_AlarmBOOL01 = Drive has an alarm condition (see drive display or manual).
Inp_FaultedBOOL01 = Drive has faulted (see drive display or manual).
Inp_AtSpeedBOOL01 = Drive is at commanded speed.
Inp_FwdPermOKBOOL11 = Permissives OK, drive can start forward.
Inp_FwdNBPermOKBOOL11 = Non-bypassable permissives OK, drive can start forward.
Inp_RevPermOKBOOL11 = Permissives OK, drive can start reverse.
Inp_RevNBPermOKBOOL11 = Non-bypassable permissives OK, motor can start reverse.
Inp_IntlkOKBOOL11 = Interlocks OK, drive can start/run.
Inp_NBIntlkOKBOOL11 = Non-bypassable interlocks OK, drive can start/run.
Inp_IOFaultBOOL0Input communication status:
Inp_SimBOOL0Simulation input. When set to 1, the instruction keeps outputs de-energized
Inp_HandBOOLMode.Inp_Hand01 = Select Hand (hardwired) control strategy.
Inp_OvrdBOOLMode.Inp_Ovrd01 = Select Override control strategy.
Inp_OvrdCmdSINT0Override mode command:
Inp_OvrdSpeedREAL0.0Value to set speed reference in Override mode (SpeedRef engineering units).
Inp_OvrdOutDatalinkREAL0.0Value to set output datalink in Override mode (OutDatalink engineering units).
Inp_ResetBOOL0Input parameter used to programmatically reset alarms and drive faults. When
Cfg_HasReverseBOOL01 = Drive can be run reverse.
Cfg_HasJogBOOL01 = Drive Jog command enabled/visible.
Cfg_AllowLocalBOOL01 = Allow Local Start/Stop without alarm.
Cfg_HasRunFdbkBOOL11 = Drive provides run feedback.
Cfg_UseRunFdbkBOOL11 = Use drive run feedback for failure checking.
Cfg_HasSpeedFdbkBOOL01 = Drive provides speed feedback on Inp_SpeedFdbk.
Cfg_UseSpeedFdbkBOOL01 = Use speed feedback > 0 as run feedback.
Alias ForDefaultDescription
0 = Drive is commanded reverse.
0 = Drive is running reverse.
0 = OK
1 = Fail
(zero) and simulates a working drive. When set to 0, the instruction operates the
drive normally.
Cfg_ShedOnFailToStartBOOL11 = Stop motor and alarm on Fail to Start.
Cfg_ShedOnIOFaultBOOL11 = Stop motor and alarm on I/O fault.
Cfg_SimScaleEUBOOL01 = In simulation, scale speed reference engineering units to speed feedback
Alias ForDefaultDescription
Inp_FwdPerm or Inp_RevPerm.
IMPORTANT: The name of the Permissive object in the controller must be this
object's name with the suffix ‘_FwdPerm’ or '_RevPerm'. For example, if your
P_VSD object has the name ’Drive123’, then its Permissive object must be named
‘Drive123_FwdPerm’ or 'Drive123_RevPerm'.
IMPORTANT: The name of the Interlock object in the controller must be this
object's name with the suffix ‘_Intlk’. For example, if your P_VSD object has the
name’Valve123’, then its Interlock object must be named ‘Drive123_Intlk’.
P_RunTime) object is connected.
IMPORTANT: The name of the Restart Inhibit object in the controller must be this
object's name with the suffix ‘_ResInh’. For example, if your P_VSD object has the
name ‘Drive123’, then its Restart Inhibit object must be named
‘Drive123_ResInh’.
IMPORTANT: The name of the runtime object in the controller must be this
object's name with the suffix ‘_RunTime’. For example, if your P_VSD object has
the name ‘Drive123’, then its runtime object must be named ‘Drive123_RunTime’.
switching modes. When this parameter is 1, in Program mode the operator
settings track the program settings; in Operator mode the program settings track
the operator settings; and the simulation inputs match the output values
(transitions are bumpless).
When this parameter is 0, the operator settings and program settings are not
modified by this instruction. In this case, when the mode is changed, the effective
value of the setting can change depending on the program-set and operator-set
values.
upon. When set to 0, program commands remain set until cleared by the
application program logic.
defaults to Program if no mode is being requested. When this parameter is 0, the
mode defaults to Operator if no mode is being requested.
0 = OCmd_Stop only in Operator or Maintenance mode.
0 = Reset required to clear fault.
0 = Override uses all permissives/interlocks.
0 = Alarm only on Fail to Start.
0 = Alarm only on I/O fault.
engineering units.
0 = If both Cfg_SimScaleEU and Cfg_SimScaleRaw are 0, then in simulation, the
speed reference is copied to the speed feedback without scaling.
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Page 18
Variable Speed Drive (P_VSD)
Table 11 - P_VSD Input Parameters
Input ParameterData
Type
Cfg_SimScaleRawBOOL01 = In simulation, scale speed reference engineering units to raw, then raw to
Cfg_HasFailToStartAlmBOOLFailToStart.Cfg_Exists0These parameters determine whether the corresponding alarm exists and is
Cfg_HasFailToStopAlmFailToStop.Cfg_Exists
Cfg_HasIntlkTripAlmIntlkTrip.Cfg_Exists
Cfg_HasDriveFaultAlmDriveFault.Cfg_Exists
Cfg_HasIOFaultAlmIOFault.Cfg_Exists
Cfg_FailToStartResetReqdBOOLFailToStart.Cfg_ResetReqd0These parameters determine whether a reset is required to clear the alarm status.
Cfg_FailToStopResetReqdFailToStop.Cfg_ResetReqd
Cfg_IntlkTripResetReqdIntlkTrip.Cfg_ResetReqd
Cfg_DriveFaultResetReqdDriveFault.Cfg_ResetReqd
Cfg_IOFaultResetReqdIOFault.Cfg_ResetReqd
Cfg_FailToStartAckReqdBOOLFailToStart.Cfg_AckReqd1These parameters determine whether an acknowledgement is required for an
Cfg_FailToStopAckReqdFailToStop.Cfg_AckReqd
Cfg_IntlkTripAckReqdIntlkTrip.Cfg_AckReqd
Cfg_DriveFaultAckReqdDriveFault.Cfg_AckReqd
Cfg_IOFaultAckReqdIOFault.Cfg_AckReqd
Cfg_FailToStartSeverityINTFailToStart.Cfg_Severity1000These parameters determine the severity of each alarm. This drives the color and
Cfg_FailToStopSeverityFailToStop.Cfg_Severity1000
Cfg_IntlkTripSeverityIntlkTrip.Cfg_Severity500
Cfg_DriveFaultSeverityDriveFault.Cfg_Severity1000
Cfg_IOFaultSeverityIOFault.Cfg_Severity1000
Cfg_MinSpdRefREAL0.0Minimum/maximum speed reference in engineering units (for limiting).
Cfg_MaxSpdRef60.0
Cfg_SpeedRefRawMinREAL0.0Speed reference minimum/maximum in drive (raw) units (for scaling).
Cfg_SpeedRefRawMax32,767.0
Cfg_SpeedRefEUMinREAL0.0Speed reference minimum/maximum in engineering units (for scaling).
Cfg_SpeedRefEUMax130.0
Cfg_SpeedFdbkRawMinREAL0.0Speed feedback minimum/maximum in drive (raw) units (for scaling).
Cfg_SpeedFdbkRawMax32,767.0
Cfg_SpeedFdbkEUMinREAL0.0Speed feedback minimum/maximum in engineering units (for scaling).
Cfg_SpeedFdbkEUMax130.0
Cfg_InpDatalinkRawMinREAL0.0Input datalink minimum/maximum in drive (raw) units (for scaling).
Cfg_InpDatalinkRawMax4095.0
Alias ForDefaultDescription
speed feedback Engineering Units
0 = If both Cfg_SimScaleRaw and Cfg_SimScaleEU are 0, then in simulation, the
speed reference is copied to the speed feedback without scaling.
checked or if the alarm does not exist and is not used. When these parameters are
1, the corresponding alarm exists.
When these parameters are 1, the alarm is latched ON when the alarm occurs.
After the alarm condition returns to normal, a reset is required to clear the alarm
status. When these parameters are 0, no reset is required and the alarm status is
cleared when the alarm condition returns to normal.
IMPORTANT: If the reset clears the alarm, it also acknowledges the alarm.
alarm. When these parameters are 1, the acknowledge (ack) bit is cleared when
the alarm occurs. An acknowledge command (for example, PCmd_FailAck or
Fail.OCmd_Ack) is required to acknowledge the alarm. When set to 0, the
Acknowledge bit is set when an alarm occurs, indicating an acknowledged alarm
and no acknowledge command is required.
symbol that are used to indicate alarm status on the faceplate and global object.
The following are valid values:
1…250 = Low
251…500 = Medium
501…750 = High
751…1000 = Urgent
IMPORTANT: For FactoryTalk View software version 7.0, these severity
parameters drive only the indication on the global object and faceplate. The
Alarms and Events definition of severity drives the color and symbol that is used
on the alarm banner and alarm summary as well as the value returned by
FactoryTalk Alarms and Events display commands.
18Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 2017
Page 19
Table 11 - P_VSD Input Parameters
Variable Speed Drive (P_VSD)
Input ParameterData
Cfg_InpDatalinkEUMinREAL0.0Input datalink minimum/maximum in engineering units (for scaling).
Cfg_InpDatalinkEUMax409.5
Cfg_OutDatalinkMinREAL0.0Minimum/maximum output datalink in engineering units (for limiting).
Cfg_OutDatalinkMax100.0
Cfg_OutDatalinkRawMinREAL0.0Output datalink minimum/maximum in drive (raw) units (for scaling).
Cfg_OutDatalinkRawMax4095.0
Cfg_OutDatalinkEUMinREAL0.0Output datalink minimum/maximum in engineering units (for scaling).
Cfg_OutDatalinkEUMax409.5
Cfg_SimRampTDINT10Time to ramp speed feedback when in simulation (seconds).
Cfg_FailToStartTDINT15Time after start to get run feedback before fault (seconds).
Cfg_FailToStopTDINT15Time after stop to drop run feedback before fault (seconds).
Cfg_ResetPulseTDINT2Time to pulse Out_Reset to clear drive fault.
Cfg_MaxJogTREAL0.0Maximum jog time (seconds 0 = unlimited).
Cfg_OperKeepSINT2#0000_0000Operator keeps control in Program mode or Program keeps control in Operator
Cfg_ProgKeep
PSet_SpeedRefREAL0.0Program setting of speed reference (engineering units).
PSet_OutDatalinkREAL0.0Program setting of output datalink (engineering units).
PSet_OwnerDINT0Program owner request ID (non-zero) or release (zero).
OSet_SpeedRefREAL0.01 = Operator setting of speed reference (engineering units).
OSet_OutDatalinkREAL0.01 = Operator setting of output datalink (engineering units).
PCmd_StartBOOL0When Cfg_PCmdClear is 1:
md_Stop
PC
wdBOOL0
PCmd_F
PCmd_Rev
PCmd_AcqBOOLMode.PCmd_Acq0When Cfg_PCmdClear is 1:
PCmd_FailToStartUnshelveBOOLFailToStop.PCmd_Unshelve0• S
PCmd_FailToStopUnshelveFailToStart.PCmd_Unshelve
tlkTripUnshelveIntlkTrip.PCmd_Unshelve
PCmd_In
PCmd_DriveFaultUnshelveDriveFault.PCmd_Unshelve
PCmd_IOFaultUnshelveIOFault.PCmd_Unshelve
OCmd_StartBOOL0Operator command to start or stop drive.
OCmd_Stop
OCmd_JogBOOL0Operator command to jog drive (not cleared by P_VSD!).
OCmd_FwdBOOL0Operator command to set direction to forward or reverse.
OCmd_Rev
OCmd_BypassBOOL0Operator command to bypass all bypassable interlocks and permissives.
OCmd_CheckBOOL0Operator command to check (not bypass) all interlocks and permissives.
MCmd_DisableBOOL0Maintenance command to disable drive.
MCmd_EnableBOOL0Maintenance command to enable drive.
MCmd_AcqBOOLMode.MCmd_Acq0Maintenance command to acquire ownership (Operator/Program/Override to
Type
Alias ForDefaultDescription
• Set PCmd_Lock to 1 to Lock
• Set PCmd_Unlock to 1 to Unlock
• These parameters reset automatically
When Cfg_PCmdClear is 0:
• Set PCmd_Lock to 1 to Lock
• Set PCmd_Lock to 0 to Unlock
• PCmd_Unlock is not used
• These parameters do not reset automatically
• This parameter is always reset automatically
• The parameter is reset automatically
et PCmd_<Alarm>Suppress to 1 to suppress alarm
• S
• Set PCmd_<Alarm>Unsuppress to 1 to unsuppress alarm
• These parameters reset automatically
W
hen Cfg_PCmdClear is 0:
• S
et PCmd_<Alarm>Suppress to 1 to suppress alarm
• Set PCmd_<Alarm>Suppress to 0 to unsuppress alarm
• PCmd_<Alarm>Unsuppress is not used
• These Parameters do not reset automatically
et PCmd_<Alarm>Unshelve to 1 to Unshelve alarm
• The parameter is reset automatically
Maintenance).
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Page 21
Table 11 - P_VSD Input Parameters
Variable Speed Drive (P_VSD)
Input ParameterData
Type
MCmd_RelBOOLMode.MCmd_Rel0Maintenance command to release ownership (Maintenance to Operator/
OCmd_AcqLockBOOLMode.OCmd_AcqLock0Operator command to acquire and lock mode in Operator mode.
OCmd_UnlockBOOLMode.OCmd_UnlockRel0Operator command to unlock and release Operator mode.
OCmd_ResetBOOL0Operator command to reset all alarms requiring reset.
OCmd_ResetAckAllBOOL0Operator command to reset and acknowledge all alarms and reset latched Shed
Alias ForDefaultDescription
Program/Override).
conditions.
Variable Speed Drive Output Structure
Output parameters include the following:
• Output data elements (Out_) are the primary outputs of the instruction,
typically used by hardware output modules; however, they can be used by
other application logic.
alue data elements (Val_) are numeric outputs of the instruction for use
• V
b
y the HMI. Values can also be used by other application logic or software
packages.
ource and Quality data elements (SrcQ_) are outputs of the instruction
• S
u
sed by the HMI to indicate PV source and quality.
tatus data elements (Sts_) are bit outputs of the instruction for use by the
• S
H
MI. Status bits can also be used by other application logic.
rror data elements (Err_) are outputs of the instruction that indicate a
• E
pa
rticular configuration error. If any Err_ bit is set, then the Sts_Err
configuration error summary status is set and the Invalid Configuration
indicator is displayed on the HMI.
ot Ready data elements (Nrdy_) are bit outputs of the instruction for use
• N
by the HMI for displaying the Device Not Ready indicator. These bits can
also be used by other application logic.
larm data elements (Alm_) are outputs of the instruction that indicate a
• A
pa
rticular alarm has occurred.
cknowledge data elements (Ack_) are outputs of the instruction that
• A
i
ndicate the corresponding alarm has been acknowledged.
eady data elements (Rdy_) are bit outputs of the instruction used by the
• R
H
MI to enable or disable Command buttons and entry fields.
Table 12 - P_VSD Output Parameters
Output ParameterData TypeAlias ForDescription
EnableOutBOOLEnable Output: The EnableOut signal is not manipulated by this instruction. Its output state
Out_SpeedRefREALDrive Speed Reference in drive units (for example, 0.0...32,767.0 = 0 to maximum frequency).
Out_DatalinkREALAuxiliary signal (datalink) output in drive (raw) units.
Out_RunBOOL1 = Start/Run drive.
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always reflects EnableIn input state.
0 = Stop drive (for held starter type).
Page 22
Variable Speed Drive (P_VSD)
Table 12 - P_VSD Output Parameters
Output ParameterData TypeAlias ForDescription
Out_StopBOOL1 = Stop or start drive.
Out_Start
Out_JogBOOL1 = Jog drive at jog speed.
Out_ClearFaultBOOL1 = Attempt to clear drive fault.
Out_FwdBOOL1 = Set drive direction to forward or reverse.
Out_Rev
Val_SpeedRefREALSpeed reference (target) to drive. (engineering units)
Val_SpeedFdbkREALSpeed feedback (actual) from drive. (engineering units)
Val_InpDatalinkREALInput datalink value from drive. (engineering units)
Val_OutDatalinkREALOutput datalink value to drive. (engineering units)
Val_SpeedRefEUMinREALMinimum of speed reference = Min (Cfg_SpeedFdbkEUMin, Cfg_SpeedFdbkEUMax).
Val_SpeedRefEUMaxREALMaximum of speed reference = Max (Cfg_SpeedFdbkEUMin, Cfg_SpeedFdbkEUMax).
Val_SpeedFdbkEUMinREALMinimum of speed feedback = Min (Cfg_SpeedFdbkEUMin, Cfg_SpeedFdbkEUMax).
Val_SpeedFdbkEUMaxREALMaximum of speed feedback = Max (Cfg_SpeedFdbkEUMin, Cfg_SpeedFdbkEUMax).
1 = I/O live and assumed good quality
2 = No feedback configured, assumed good quality
TEST 8 = Device simulated
9 = Device loopback simulation
10 = Manually entered value
UNCERTAIN 16 = Live input, off-specification
17 = Value substituted at device/bus
18 = Value substituted by maintenance (Has and not Use)
19 = Shed, using last good value
20 = Shed, using replacement value
BAD 32 = Signal failure (out-of-range, NaN, invalid combination)
33 = I/O channel fault
34 = I/O module fault
35 = Bad I/O configuration (for example, scaling parameters)
0 = No mode
1 = Hand
2 = Maintenance
3 = Override
4 = Program (locked)
5 = Operator (locked)
6 = Program (unlocked, Operator is default)
7 = Operator (unlocked, Program is default)
8 = Program (unlocked, Program is default)
9 = Operator (unlocked, Operator is default)
Val_OwnerDINTCurrent Object Owner ID (0 = not owned).
Val_NotifySINTCurrent alarm level and acknowledgement (enumeration):
0 = No alarm
1 = Alarm cleared: a reset or acknowledge is required
2 = Low (acknowledged)
3 = Low (unacknowledged)
4 = Medium (acknowledged)
5 = Medium (unacknowledged)
6 = High (acknowledged)
7 = High (unacknowledged)
8 = Urgent (acknowledged)
9 = Urgent (unacknowledged)
Sts_StoppedBOOL1 = Drive requested to stop and is confirmed stopped.
Sts_StartingBOOL1 = Drive requested to run and awaiting run feedback.
Sts_RunningBOOL1 = Drive requested to run and is confirmed running.
Sts_StoppingBOOL1 = Drive requested to stop and awaiting stopped feedback.
Sts_JoggingBOOL1 = Drive requested to jog.
Sts_CommandDirBOOL1 = Drive commanded to forward.
0 = Reverse.
Sts_ActualDirBOOL1 = Drive actual direction is forward.
0 = Reverse.
Variable Speed Drive (P_VSD)
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Variable Speed Drive (P_VSD)
Table 12 - P_VSD Output Parameters
Output ParameterData TypeAlias ForDescription
Sts_AccelBOOL1 = Drive is accelerating or decelerating.
Sts_Decel
Sts_NotReadyBOOL1 = Drive is not ready (cannot be started), check alarms, stops, faults.
Sts_AlarmBOOL1 = Drive has an alarm (see drive display or manual).
Sts_AtSpeedBOOL1 = Drive is running at reference speed.
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Variable Speed Drive (P_VSD)
Table 12 - P_VSD Output Parameters
Output ParameterData TypeAlias ForDescription
Rdy_StartBOOL1 = Ready to receive OCmd (Start, Stop, Jog, Fwd, rev, Bypass, Check, or Reset) (enables HMI
Rdy_Stop
Rdy_Jog
Rdy_Fwd
Rdy_Rev
Rdy_Bypass
Rdy_Check
Rdy_Reset
Rdy_DisableBOOL1 = Ready to receive MCmd (Disable or Enable) (enables HMI button).
Rdy_Enable
Rdy_ResetAckAllBOOL1 = At least one alarm or latched shed condition requires reset or acknowledgement.
Rdy_SpeedRefBOOL1 = Ready to receive OSet_SpeedRef (enables data entry field).
Rdy_OSetBOOL1 = Ready to receive OSets (other than Speed Reference) (enables data entry fields).
P_VSDBOOLUnique parameter name for auto-discovery.
button).
Variable Speed Drive Local Configuration Tags
Configuration parameters that are arrayed, string, or structure data types cannot
be configured as parameters for Add-On Instructions. Configuration parameters
of these types appear as local tags to the Add-On Instruction. Local tags can be
configured through the HMI faceplates or in Studio 5000 Logix Designer®
application by opening the Instruction Logic of the Add-On Instruction instance
and then opening the Data Monitor on a local tag. These parameters cannot be
modified by using controller logic or Logix Designer application export/import
functionality.
Table 13 - Local Configuration Tags
Tag NameData TypeDefaultDescription
Cfg_DescSTRING_40'Variable Speed
Drive'
Cfg_FwdTextSTRING_16'Forward'Name for Forward Direction, for example, ‘Up’, ‘Forward’.
Cfg_InpDatalinkEUSTRING_8' 'Datalink Input Engineering Units for display on HMI.
Cfg_InpDatalinkLabelSTRING_20' 'Datalink Input Label displayed on faceplate.
Cfg_LabelSTRING_20'Motor Speed
Control'
Cfg_OutDatalinkEUSTRING_8' 'Datalink Output Engineering Units for display on HMI.
Cfg_OutDatalinkLabelSTRING_20' 'Datalink Output Label displayed on faceplate.
Cfg_RevTextSTRING_16'Reverse'Name for Reverse Direction, for example, ‘Down’, ‘Reverse’.
Cfg_SpeedFdbkEUSTRING_8'Hz'Speed Feedback Engineering Units for display on HMI.
Cfg_SpeedRefEUSTRING_8'Hz'Speed Reference Engineering Units for display on HMI.
Cfg_TagSTRING_20'P_VSD'Tagname for display on HMI. This string is shown in the title bar of the faceplate.
Description for display on HMI. This string is shown in the title bar of the faceplate.
Label for graphic symbol displayed on HMI. This string appears on the graphic symbol.
26Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 2017
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Variable Speed Drive (P_VSD)
Operations
This section describes the primary operations for Add-On Instructions.
Modes
This instruction uses the following standard modes, which are implemented by
using an embedded P_Mode Add-On Instruction.
Table 14 - Modes
ModeDescription
OperatorThe Operator owns control of the device. Operator commands (OCmd_) and Operator settings
(OSet_) from the HMI are accepted.
ProgramProgram logic owns control of the device. Program commands (PCmd_) and Program settings
(PSet_) are accepted.
OverridePriority logic owns control of the device and supersedes Operator and Program control. Override
Inputs (Inp_OvrdCmd and other Inp_OvrdXxxx values) are accepted. If so configured,
bypassable interlocks and permissives are bypassed.
MaintenanceMaintenance owns control of the device and supersedes Operator, Program, and Override
control. Operator commands and settings from the HMI are accepted. Bypassable interlocks and
permissives are bypassed, and device timeout checks are not processed.
HandHardwired logic or other logic outside the instruction owns control of the device. The instruction
tracks the state of the device for bumpless transfer back to one of the other modes.
No ModeThe device is disabled and has no owner because the EnableIn input is false. The main
instruction Logic routine is not being scanned. See Execution section for more information on
EnableInFalse processing.
IMPORTANT
Instructions with Cfg_OperKeep and Cfg_ProgKeep keep some aspects of the
device operation with the operator or program regardless of whether the main
mode is Program or Operator mode.
See Rockwell Automation Library of Process Objects: Common Mode Block
(P_Mode) Reference Manual, publication
SYSLIB-RM005, for more
information.
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Variable Speed Drive (P_VSD)
Alarms
This instruction uses the following alarms, which are implemented by using
embedded P_Alarm and P_Gate Add-On Instructions.
Alarm NameP_Alarm NameP_Gate NameDescription
Drive FaultDriveFaultNoneRaised when the drive detects a fault and sets its
Faulted status bit. Check the Fault Code and
description to determine the cause. Issuing a Reset of
this object will cause a Clear Fault command to be
sent to the drive in an attempt to clear the fault.
Fail to StartFailToStartNoneRaised when the drive has and is using run feedback,
an attempt is made to start the drive, and the run
feedback does not indicate that the drive is running
within the configured time. If Fail to Start is
configured as a shed fault, the drive is stopped and a
reset is required in order to start the drive.
Fail to StopFailToStopNoneRaised when the drive has and is using run feedback,
an attempt is made to stop the drive, and the run
feedback does not indicate that the drive stopped
within the configured time.
Interlock TripIntlkTripNoneRaised when the drive is running and an interlock ’not
OK’ condition causes the drive to stop.
If interlocks are not bypassed, a bypassable interlock
or a non-bypassable interlock 'not OK' condition
initiates an interlock trip. If interlocks are bypassed,
only a non-bypassable interlock 'not OK' condition
initiates an interlock trip.
I/O FaultIOFaultNoneRaised when the Inp_IOFault input is true. This input
is usually used to indicate to the instruction that a
communication failure has occurred for its I/O. If the
I/O Fault is configured as a shed fault, the drive is
stopped and not permitted to start until reset.
Parameters of the P_Alarm object can be accessed by using the following
convention: [P_Alarm Name].[P_Alarm Parameter].
The Fail to Start and Fail to Stop status and alarms have a configurable delay to
allow the run feedback time to align with the commanded output. This delay
provides time for the motor to actually start or stop.
The Fail to Start and I/O fault conditions can be configured to alarm only, or to
de-energize the motor (shed). If one of these conditions stops the motor, a reset is
required to run.
See Rockwell Automation Library of Process Objects: Common Alarm Block
(P_Alarm) Reference Manual, publication
SYSLIB-RM002, for more
information.
28Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 2017
Page 29
Variable Speed Drive (P_VSD)
Simulation
Simulation in P_VSD simulates a working drive while the outputs to the drive are
kept de-energized. The object can be manipulated as if a working drive were
present. This includes a basic ramp-up of speed feedback value on starting and
ramp-down on stopping. The simulated ramp-up-to-speed time is configurable.
This capability is used often for activities such as system testing and operator
training.
You must set the Inp_Sim parameter in the controller to ‘1’ to enable simulation.
The Loopback Test icon is displayed at the bottom left of the Operator
faceplate, indicating the device is in simulation.
You are also able to set the following parameters in the controller:
• Cfg_SimRampT - Time to ramp speed feedback in seconds.
• Cfg_SimScaleEU - When this parameter is set to '1', Speed Reference
ngineering units are scaled to Speed Feedback engineering units.
e
fg_SimScaleRaw - When this parameter is set to '1', Speed Reference
• C
e
ngineering units are scaled to raw, then raw to Speed Feedback
engineering units.
When you have finished in simulation, set the Inp_Sim parameter in the
controller to ‘0’ to start, stop, and monitor the actual drive.
Execution
The following table explains the handling of instruction execution conditions.
ConditionDescription
EnableIn False (false rung)Processing for EnableIn False (false rung) is handled the
Powerup (prescan, first scan)Processing of modes and alarms on prescan and powerup
Postscan (SFC transition)No SFC postscan logic is provided.
See the Logix5000™ Controllers Add-On Instructions Programming Manual,
publication
1756-PM010, for more information.
same as if the drive were disabled by command. The drive
outputs are de-energized and the drive is shown as
disabled on the HMI.
is handled by the embedded P_Mode and P_Alarm AddOn Instructions - refer to their specifications for details.
On powerup, the drive is treated as if it had been
commanded to stop.
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Page 30
Variable Speed Drive (P_VSD)
Programming Example
An example showing P_VSD with P_PIDE is shown in the following image.
The output of the P_PIDE block (Out_CV) is used as the input to the P_VSD
block (PSet_SpeedRef ). The P_VSD output Sts_Available is True when the
drive is available to be controlled by the program. Sts_Running is True when the
drive is running. When either of these values are False (the drive is not in program
mode, or the drive is not running, or both), the P_PIDE input
Inp_UseCVInitVal is set to True, forcing the P_PIDE block to initialize its CV
value to Inp_CVInitVal. Inp_CVInitVal is wired from the output Val_SpeedRef
(speed target to the drive).
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Variable Speed Drive (P_VSD)
Display Elements
A display element (global object) is created once and can be referenced multiple
times on multiple displays in an application. When changes are made to the
original (base) object, the instantiated copies (reference objects) are
automatically updated. Use of global objects, in conjunction with tag structures
in the ControlLogix system, aid consistency and save engineering time.
Table 15 - P_VSD Display Elements Description
Display Element Name Display ElementDescription
GO_P_VSD_R
GO_P_VSD_U
GO_P_VSD_D
Motors operate in different positions: right, up, and down.
GO_P_VSD_Blower_R
GO_P_VSD_Blower_L
GO_P_VSD_Blower_U
GO_P_VSD_Blower_D
GO_P_VSD_Conveyer_RConveyor shown as a display element.
Blowers operate in different positions: right, left, up, and down.
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Variable Speed Drive (P_VSD)
Table 15 - P_VSD Display Elements Description
Display Element Name Display ElementDescription
GO_P_VSD_Inline_U
GO_P_VSD_Inline_R
GO_P_VSD_Inline_L
GO_P_VSD_Inline_D
Inline Motors operate in several positions: up, right, left, and down.
GO_P_VSD_Pump_R
GO_P_VSD_Pump_L
GO_P_VSD_Pump_U
GO_P_VSD_Agitator_DAgitator shown as a display element.
GO_P_VSD_Mixer_UMixer shown as a display element.
Pumps operate in several positions: right, left, and up.
GO_P_VSD_RPump_URotary Gear Pump shown as a display element.
32Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 2017
Page 33
Table 15 - P_VSD Display Elements Description
Display Element Name Display ElementDescription
GO_P_VSD_Fan_DFan shown as a display element.
Graphic symbols provide end-users with the following:
• Information on the motor’s current state
• Touch field to open the object’s faceplate
• Tooltip to display the object’s configured tag and description
mmon attributes of the P_VSD instruction graphic symbols include the
Co
owing:
foll
phical representation of the driven equipment
• Gra
• Speed of the motor with engineering units
• Present state of the motor in text
• Various status/quality indicators
• Mode indicator
• Direction indicator (if the drive is configured as reversing)
• Label
• Alarm Indicator
• Alarm border and label background that changes color for the severity of
he alarm
t
aintenance bypass indicator
• M
Variable Speed Drive (P_VSD)
D
rive graphic symbols have the following common attributes.
Label
Alarm Border
State
Alarm Indicator
Status/Quality
Indicator
Speed Display
Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 201733
Engineering Units
Maintenance Bypass
Indicator
Status/Quality
Indicator
Mode Indicator
Page 34
Variable Speed Drive (P_VSD)
State Indicators
State Indicator text changes and the graphic symbol color changes depending
on the state of the drive.
Table 16 - Drive State Colors
ColorState
BlueStopping
Dark GrayStopped
Light BlueJogging
BlueStarting
WhiteRunning
Status/Quality Indicators
One of these symbols appears on the graphic symbol when the described
condition is true.
Graphic SymbolDescription
Invalid configuration.
Data quality bad/failure.
Data Quality degraded: uncertain, test, simulation, substitution, or out of specification.
The input or device has been disabled.
Device not ready to operate.
Speed reference limited to minimum/maximum.
Motor is at target speed.
Drive is accelerating.
Drive is decelerating.
34Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 2017
Page 35
Variable Speed Drive (P_VSD)
TIP
When the Invalid Configuration indicator appears, you can find what
configuration setting is invalid by following the indicators. Click the graphic
symbol to open the faceplate. The Invalid Configuration indicator appears next
to the appropriate tab at the top of the faceplate to guide you in finding the
configuration error. Once you navigate to the tab, the misconfigured item is
flagged with this indicator or appear in a magenta box.
For the P_VSD instruction, the invalid configuration indicator appears under the
following conditions:
• The Fail to Start check time, Fail to Stop check time, or Fault Reset output
pulse time is set to a value less than zero or greater than 2,147,483 seconds.
he feedback simulation time is set to a value less than zero or greater than
• T
2,147,483 se
he configured scaled minimum and scaled maximum have the same
• T
v
alue, or the raw minimum and raw maximum have the save value, for the
he configured Output Datalink maximum clamp value is less than the
• T
minimum Output Datalink clamp value (if used).
he configured maximum Speed Reference clamp value is less than the
• T
m
inimum Speed Reference clamp value.
he configured Minimum Speed Reference clamp value is less than zero.
• T
• Alarm Severity is set to a value less than 1 or greater than 1000.
TIP
When the Not Ready indicator appears, you can find what condition is
preventing operation by following the indicators. Click the graphic symbol to
open the faceplate. The Not Ready indicator appears next to the appropriate
tab at the top of the faceplate to guide you in finding the condition. When you
navigate to the tab, the condition preventing operation is flagged.
or the Variable Speed Drive instruction, the Device Not Ready indicator
F
pears under the following conditions:
ap
evice has been disabled by Maintenance.
• D
• There is a configuration error.
• Interlock or Permissive is not OK.
• Operator State 0 priority command requires reset.
• Device Failure and shed requires reset.
• I/O Fault.
• I/O Fault has cleared, but its shed latch needs to be reset.
• Device has tripped (Drive Fault).
• Drive not ready
• Device logic is disabled or there is no mode.
Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 201735
Page 36
Variable Speed Drive (P_VSD)
Mode Indicators
One of these symbols appears on the right side of the graphic symbol to indicate
the mode of the object instruction.
Graphic SymbolDescription
TransparentOperator mode (if the default mode is Operator and the current mode is Operator, the mode
indicator is transparent).
Operator mode (if the default mode is Program).
Operator mode locked.
TransparentProgram mode (if the default mode is Program and the current mode is Program, the mode
TIP
indicator is transparent).
Program mode (if the default mode is Operator).
Program mode locked.
Override mode
Maintenance mode.
Hand mode
No mode.
The images provided for the Operator and Program default modes are
transparent; therefore, no mode indicators are visible if the device is in its
default mode. This behavior can be changed by replacing the image files for
these mode indicators with images that are not transparent.
See Rockwell Automation Library of Process Objects: Common Mode Block
(P_Mode) Reference Manual, publication
information.
Alarm Indicators
One of these symbols appears on the left side of the label to indicate the described
alarm condition and the alarm border and label background change color. The
alarm border and label background blink if acknowledgement of an alarm
condition is required. Once the alarm is acknowledged, the alarm border and
label background remain the color that corresponds to the severity of the alarm.
36Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 2017
SYSLIB-RM005, for more
Page 37
SymbolBorder and Label BackgroundDescription
No change in colorAlarm Inhibit: an alarm is suppressed by the Program,
disabled by Maintenance, or shelved by the Operator.
Variable Speed Drive (P_VSD)
WhiteReturn to normal (no alarm condition), but a previous
BlueLow severity alarm.
YellowMedium severity alarm.
RedHigh severity alarm.
MagentaUrgent severity alarm.
No symbolNo change in colorNo alarm or alarm inhibit condition, and all alarms
alarm has not been acknowledged.
are acknowledged.
See Rockwell Automation Library of Process Objects: Common Alarm Block
(P_Alarm) Reference Manual, publication
SYSLIB-RM002, for more
information.
Maintenance Bypass Indicator
This symbol appears to the right of the label to indicate that a maintenance
bypass has been activated.
TIP
When the Maintenance Bypass Indicator appears, you can find what condition
was bypassed by following the indicators. Click the Graphic Symbol to open the
Faceplate. The Maintenance Bypass Indicator appears next to the appropriate
tab at the top of the Faceplate to guide you in finding the bypass. Once you
navigate to the tab, the bypassed item is flagged with this indicator.
For the P_VSD instruction, the Maintenance Bypass indicator appears under the
following condition:
• Bypassable interlocks and permissives have been bypassed.
• The motor is configured to have run feedbacks (on the Engineering tab of
he faceplate), but the run feedbacks are not being used (selection on the
t
Maintenance tab of the faceplate).
See the Rockwell Automation Library of Process Objects: Common Alarm Block
(P_Alarm) Reference Manual, publication
SYSLIB-RM002, for more
information.
Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 201737
Page 38
Variable Speed Drive (P_VSD)
Using Display Elements
The graphic symbol for P_VSD can be found in the global object file
(RA-BAS) P_VSD Graphics Library.ggfx.
1. Copy the global object from the global object file and paste it in the
display file.
2. In the display, right-click the global object and choose Global Object
Pa
rameter Values.
The Global Object Parameter Values dialog box appears.
38Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 2017
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Variable Speed Drive (P_VSD)
The global object parameters are as follows.
Parameter RequiredDescription
#102YO bject tag to point to the name of the associated object Add-On Instruction in
#103YPath used for display navigation features to other objects. Include program
#120NAdditional parameter to pass to the display command to open the faceplate.
#121NAdditional parameter to pass to the display command to open the faceplate. if
#122YThese are the options for the global object display:
the controller.
scope if tag is a program scope tag.
Typically used to define position for the faceplate.
defining X and Y coordinate, separate parameters so that X is defined by #120
and Y is defined by #121. This lets the same parameters be used in
subsequent display commands originating from the faceplate.
0 = Always show faceplate
1 = Show Quick Display for users without Maintenance access (Code C)
2 = Always show Quick Display
3. Type the tag or value in the Value column as specified in the Description
column.
Quick Display
TIP
Click the ellipsis (. . .) to browse and choose a tag.
Values for items marked ‘(optional)’ can be left blank.
lick OK.
4. C
The Quick Display screen provides the means for operators to perform simple
interactions with the P_VSD instruction instance. From the Quick Display, you
can navigate to the faceplate for full access for operation, maintenance, and
configuration.
Navigate to Full
Faceplate Button
Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 201739
Page 40
Variable Speed Drive (P_VSD)
Faceplate
The P_VSD faceplate consists of six tabs and each tab consists of one or more
pages.
The title bar of each faceplate contains the value of local configuration tags
Cfg_Tag and Cfg_Desc.
The Operator tab is displayed when the faceplate is initially opened. Click the
appropriate icon at the top of the screen to access a specific tab.
MaintenanceAlarms
OperatorEngineering
Diagnostics
Trends
Help
Exit
The faceplate provides the means for operators, maintenance personnel,
engineers, and others to interact with the P_VSD instruction instance, including
viewing its status and values and manipulating it through its commands and
settings. When a given input is restricted via FactoryTalk View software security,
the required user Security Code letter is shown in the tables that follow.
Operator Tab
The Faceplate initially opens to the Operator (‘Home’) tab. From here, an
operator can monitor the device status and manually operate the device when it is
in Operator mode.
The Operator tab shows the following information:
• Current mode (Program, Operator, Override, Maintenance, or Hand)
• Requested Mode indicator (appears only if the Operator or Program mode
as been superseded by another mode)
h
rive State (Stopping, Stopped, Starting, Running, Disable, or I/O Fault)
• D
• The Drive Motion State (Accelerating, Decelerating, or At Speed)
• The Drive Ready Indicator (Drive Ready, Drive Not Ready, or Drive
ulte d)
Fa
tual Speed
• Ac
• Actual Direction (appears only if the drive is configured for
unning reverse)
r
equested Speed
• R
• Requested Direction (appears only if the drive is configured for
unning reverse)
r
nterlock and Permissive states
• I
40Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 2017
Page 41
Mode Indicator
Variable Speed Drive (P_VSD)
• Input Datalink Value (appears only if the drive is configured to provide an
Input Datalink)
tput Datalink setting (appears only if the drive is configured to provide
• Ou
a
n Output Datalink)
nput Source and Quality indicator (See 'SrcQ' in the Output parameters
• I
t
able on
page 22 for details).
Operator Mode
Command Buttons
Reset and Acknowledge
All Alarms Command
Button
Drive Start and Stop
Command Buttons
Drive State Indicator
Restart Inhibit
Navigation Button
Runtime Navigation
Button
Drive Ready Indicator
Input and Output
Datalink Values and
Settings
Input Source and
Quality Icon
IMPORTANT
Drive Jog Command
Button
Interlock and Permissive
Indicators and
Navigation Buttons
Actual Direction
Actual Speed
Direction Control
Command Buttons
Input Source and
Quality Indicator
The Input Datalink (Torque Current in figure above) must be enabled
on page 6 of the Engineering tab for this field to be visible.
(See
Engineering Tab Page 6 on page 60.)
Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 201741
Page 42
Variable Speed Drive (P_VSD)
The following table shows the functions included on the Operator tab.
Table 17 - Operator Tab Description
ButtonActionSecurity Required
Click to release Operator mode lock.Manual device operation (Code B)
Click to acquire from Program and lock in Operator
mode.
Click to request Program mode.
Click to request Operator mode.
Click to reset and acknowledge all alarms.Acknowledge alarms (Code F)
Click to start motor.Normal Operation of Devices (Code A)
Available in Operator or Maintenance
mode
Click to stop motor.
Click to jog drive.
Click to choose forward direction.
Click to choose reverse direction.
Click to open Interlocks faceplate.None
Click to open Forward Permissives faceplate.
Click to open Reverse Permissives faceplate.
Click to open Restart Inhibit faceplate.
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Variable Speed Drive (P_VSD)
Table 17 - Operator Tab Description
ButtonActionSecurity Required
Click to open runtime faceplate.None
Operator Speed
Reference Setting
Data Entry
Operator Output
Datalink Setting
Data Entry
Enter the Speed Reference for use in Operator or
Maintenance mode. This entry is available in all
modes if Bumpless Program/Operator transition is
not selected on the on screen.
Enter the Output Datalink Setting for use in
Operator or Maintenance Mode. This entry is
available in all modes if Bumpless Program/
Operator Transition is not selected on the
configuration screen.
IMPORTANT: The Output Datalink must be
enabled on page 6 of the Engineering tab for this
field to be visible. (See
page 60.)
The use of this entry is determined by drive
configuration and/or by the code that uses the
Out_Datalink parameter of this instruction.
Engineering Tab Page 6 on
Normal Operation of Devices (Code A)
The Operator tab has buttons to open the faceplate of the source object used as
interlock or permissive (often this is a P_Intlk interlock object or P_Perm
permissive object). When the P_VSD instruction does not have associated
Permissive or Interlock instructions, the Permissive and Interlock buttons revert
to indicators.
The Operator tab also has buttons to open the Restart Inhibit and Runtime
faceplates if the valve is configured to use the P_ResInh or P_RunTime objects.
When the P_VSD instruction does not have associated P_ResInh or P_RunTime
instructions, the Start Inhibit and Runtime buttons are not displayed.
See these publications for more information:
• Rockwell Automation Library of Process Objects: Interlock with First Out
and Bypass (P_Intlk) Reference Manual, publication
SYSLIB-RM004
• Rockwell Automation Library of Process Objects: Permissives with Bypass
(P_Perm) Reference Manual, publication
SYSLIB-RM007
• Rockwell Automation Library of Process Objects: Restart Inhibit for
Large Motor (P_ResInh) Reference Manual, publication
SYSLIB-RM009.
• Rockwell Automation Library of Process Objects: RunTime and Starts
nTime) Reference Manual, publication
(P_Ru
SYSLIB-RM010.
Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 201743
Page 44
Variable Speed Drive (P_VSD)
One of these symbols appears to indicate the described interlock or permissives
condition.
Graphic SymbolDescription
One or more conditions not OK
Non-bypassed conditions OK
All conditions OK, bypass active
All conditions OK
One of these symbols appears to indicate the described alarm condition. The
alarm bell symbol blinks if acknowledgement of an alarm condition is required.
Table 18 - Alarm Status Symbols
Graphic SymbolAlarm Status
In Alarm (Active Alarm)
In Alarm and Acknowledged
Out of Alarm but Not Acknowledged
Alarm Suppressed (by Operator) (Alarm is logged but not
displayed)
Alarm Disabled (by Maintenance)
Alarm shelved (disabled by Program Logic)
44Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 2017
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Variable Speed Drive (P_VSD)
Alarm indicators appear on the Operator tab when the corresponding alarm
occurs.
Fail to Start Alarm
Fail to Stop Alarm
Interlock Trip Alarm
Drive Fault Alarm
I/O Fault Alarm
If the drive is configured to not have
jog capability, not allow reversing, or
not have an Input or Output
Datalink, the corresponding features
are not displayed.
If the drive is not configured to have
Permissives or Interlocks, they appear
only as indicators.
Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 201745
Page 46
Variable Speed Drive (P_VSD)
Maintenance Tab
Maintenance personnel use the information and controls on the Maintenance tab
to make adjustments to device parameters, troubleshoot and temporarily work
around device problems, and disable the device for routine maintenance.
The Maintenance is divided into two pages.
Maintenance Tab Page 1
Page one of the Maintenance tab shows the following information:
• Current mode (Program, Operator, Override, Maintenance, or Hand).
• Requested Modes indicator highlights all of the modes that have been
e
quested. The leftmost highlighted mode is the active mode.
r
• Whet
• Interlock and Permissive Bypassed/Enabled indicator.
her the motor is enabled or disabled.
Maintenance Tab Page Selection
Mode Indicator
Requested Modes Indicator
Drive Enabled/Disabled Indicator
Interlocks and Permissives
Bypassed Indicator
Maintenance Mode
Acquire and Release
Command Buttons
Drive Enable and Disable
Command Buttons
Interlock and Permissive
Bypass and Check
Command Buttons
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Variable Speed Drive (P_VSD)
The following table shows the functions on page one of the Maintenance tab.
Table 19 - Maintenance Tab Page 1 Description
FunctionActionSecurityConfiguration Parameters
Click to release motor from Maintenance mode Equipment
Maintenance
(Code C)
Click to place motor in Maintenance mode
Click to enable motor
Click to disable motor
None
Click to enable checking of all interlocks and
permissives
Click to bypass checking of bypassable
interlocks and permissives
In Override mode,
bypass Interlocks
and Permissives
that can be
bypassed
Use Run Feedback Check to have the instruction use the run
Bumpless
Program/Operator
Transition
Bumpless
Transition from
Override/Hand to
Program/Operator
Check to bypass (in Override mode) bypassable
interlocks and permissives
feedback to check for motor fail to start or fail
to stop.
IMPORTANT: This option is available only if
'Motor has Run Feedback' on page 2of the
Engineering tab is checked. (See
Tab Page 2 on page 53.)
Check to have Program settings such as Speed
Reference track Operator settings in Operator
mode, and have Operator settings track
Program settings in Program mode.
Check to have Program and Operator Speed
Reference track the Override Speed Reference
in Override mode or the actual speed in Hand
mode.
Engineering
Disable alarm
Bypass
Permissives
and Interlocks
(Code H)
Equipment
Maintenance
(Code C)
Cfg_OvrdPermIntlk
Cfg_UseRunFdbk
Cfg_SetTrack
Cfg_SetTrackOverdHand
Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 201747
Page 48
Variable Speed Drive (P_VSD)
Maintenance Tab Page 2
Speed Reference
Clamping Limits
Output Datalink
Clamping Limits
The following table lists the functions of page two of the Maintenance tab.
Table 20 - Maintenance Tab Page 2 Description
FieldActionSecurity
Fault Reset output
pulse time
(seconds)
Time after Start for
feedback before
Fault (seconds)
Time after Stop for
feedback before
Fault (seconds)
Type the amount of time to hold Out_Reset
true to reset a drive fault when a reset
command is received.
Type the amount of time to allow for the drive’s
run feedback to confirm the drive has started
before raising a Fail to Start alarm.
Type the amount of time to allow for the drive’s
run feedback to confirm the drive has stopped
before raising a Fail to Stop alarm.
TIP: Allow extra time for the drive to
decelerate or coast to zero speed before it
returns a confirmed Stopped status.
Required
Configuration
and Tuning
Maintenance
(Code D)
Configuration Parameters
Cfg_ResetPulseT
Cfg_FailToStartT
Cfg_FailToStopT
48Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 2017
Page 49
Table 20 - Maintenance Tab Page 2 Description
Variable Speed Drive (P_VSD)
FieldActionSecurity
Maximum Jog
Time (seconds)
Speed Reference
Limits (Minimum
and Maximum)
Output Datalink
Limits (Minimum
and Maximum)
Type the maximum jog time in seconds.
0 = unlimited time.
Type the clamping limits for the speed
reference. If a speed reference outside this
range is entered, the speed is clamped at these
limits and Sts_SpeedLimited is asserted.
Type the clamping limits for the output
datalink parameter. If an output datalink value
outside this range is entered, the value is
clamped at these limits.
IMPORTANT: These limits are available only if
'Drive has Output Datalink' on page 6 of the
Engineering page is checked. (See Engineering
Tab Page 6 on page 60.)
Required
Configuration
and Tuning
Maintenance
(Code D)
Configuration Parameters
Cfg_MaxJogT
• Cfg_MinSpdRef
• Cfg_MaxSpdRef
• Cfg_OutputDatalinkMin
• Cfg_OutputdatalinkMax
Engineering Tab
The Engineering tab provides access to device configuration parameters and
ranges, options for device and I/O setup, displayed text,
faceplate-to-faceplate navigation settings, for initial system commissioning or
later system changes.
The Engineering tab is divided into six pages.
Engineering Tab Page 1
Page one of the Engineering tab is used to set the Speed Reference (output)
scaling, from user Engineering Units used on the faceplate (typically Hz, RPM,
or percent) to Raw Units (counts) sent to the drive, and to set the Speed
Feedback (input) scaling, from Raw Units as received from the drive (counts) to
Engineering Units for display (typically Hz, RPM, or Percent).
For example, with the PowerFlex 70 family of drives, 32,767 counts represents the
speed in the Maximum Frequency (MaxFreq) Parameter. For a drive before
tuning, this is often 130 Hz. In this case, 32,767 * 60.0 / 130.0 = 15,123
represents 60 Hz (60% in the following figure).
Check the manual for your drive to determine what count sent to the drive
corresponds to your maximum speed reference, and what count received from the
drive corresponds to your maximum speed feedback.
Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 201749
Page 50
Variable Speed Drive (P_VSD)
Speed Feedback
Raw Max/Min
Speed Feedback
Speed Reference
Speed Feedback
Engineering
Units Max/Min
Speed Reference
Engineering
Units Max/Min
IMPORTANT
Speed Reference
Raw Max/Min
If Speed Feedback is disabled on page 2 of the Engineering tab
(See
Engineering Tab Page 2 on page 53), the Speed Feedback part (preceding
dashed line) of the preceding image is not displayed and the Loopback options
are not available.
50Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 2017
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Variable Speed Drive (P_VSD)
The following table lists the functions on page 1 of the Engineering tab.
Table 21 - Engineering Tab Page 1 Descriptions
FunctionActionSecurityConfiguration
Speed Feedback
(Input) Raw
Maximum
Speed Feedback
(Input) Raw
Minimum
Speed Feedback
Scaled Maximum
Speed Feedback
Scaled Minimum
Speed Feedback
Engineering Units
Tex t
Speed Reference
Engineering Units
Tex t
Speed Reference
Scaled Maximum
Speed Reference
Scaled Minimum
Speed Reference
(Output) Raw
Maximum
Speed Reference
(Output) Raw
Minimum
Enter the raw input count that corresponds to
the maximum speed feedback from the drive
Enter the raw input count that corresponds to
the minimum speed feedback from the drive.
(This value is usually zero.)
Enter the engineering unit value for the
maximum speed feedback from the drive.
Enter the engineering unit value for the
minimum speed feedback from the drive.
(This value is usually zero. Do not enter a
negative value for reversing drives. Reversing is
handled separately.)
Enter the text of the units of measure of the
scaled speed feedback. (This is often Hz, RPM,
or Percent.)
Enter the text of the units of measure of the
scaled speed reference. (This is often Hz, RPM,
or Percent.)
Enter the engineering unit value for the
maximum speed reference sent to the drive.
Enter the engineering unit value for the
minimum speed reference sent to the drive.
(This value is usually zero. Do not enter a
negative value for reversing drives. Reversing is
handled separately.)
Enter the raw output count that corresponds to
the maximum speed reference sent to
the drive.
Enter the raw output count that corresponds to
the minimum speed reference sent to the
drive. (This value is usually zero.)
Engineering
Configuration
(Code E)
Parameters
Cfg_SpeedFdbkRawMax
Cfg_SpeedFdbkRawMin
Cfg_SpeedFdbkEUMax
Cfg_SpeedFdbkEUMin
Cfg_SpeedFdbkEU
Cfg_SpeedRefEU
Cfg_SpeedRefEUMax
Cfg_SpeedRefEUMin
Cfg_SpeedRefRawMax
Cfg_SpeedRefRawMin
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Variable Speed Drive (P_VSD)
Table 21 - Engineering Tab Page 1 Descriptions
FunctionActionSecurityConfiguration
Simulated
Loopback Method
Selection
Select the option that corresponds to how the
speed feedback for the drive is to be
determined from the speed reference when the
drive is being simulated (Inp_Sim = 1).
Click the left Loopback option to copy the
speed reference in engineering units to the
speed feedback. (The simulated feedback is
ramped to act like a drive accelerating or
decelerating.) Use this if the speed reference
and speed feedback use the same scaling
parameters
Click the middle Loopback option to scale the
simulated feedback from the speed reference
engineering unit range to the speed feedback
engineering unit range. Use this setting if the
speed reference and speed feedback have
different engineering ranges (for example,
percent for reference and Hz for feedback), but
the maximum reference (for example, 100%)
corresponds to the maximum feedback (for
example, 3600 RPM).
Click the right Loopback option to scale the
speed reference to raw units, scale the speed
reference units to speed feedback raw units,
and scale to speed feedback engineering units.
Use this setting if the reference and feedback
ranges do not correspond.
Engineering
Configuration
(Code E)
Parameters
Cfg_SimScaleEU
TIP
The P_VSD instruction supports reverse scaling. Either the raw (input)
or engineering (scaled) range can be reversed (maximum less than
minimum).
52Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 2017
Page 53
Engineering Tab Page 2
Variable Speed Drive (P_VSD)
Configure Description,
Label, Tag, Forward Text,
and Reverse Text
The following table lists the functions on page 2 of the Engineering tab.
Table 22 - Engineering Tab Page 2 Descriptions
FunctionActionSecurity Configuration Parameters
Click to navigate to the Mode
Configuration display.
Drive DescriptionType a Description of the drive that
appears in the title bar of the faceplate.
LabelType a Label for the drive that appears
on the graphic symbol.
TagType a Tag for the drive that appears in
the title bar of the faceplate and in the
Tooltip.
Forward textType a name for forward direction.Cfg_FwdText
Reverse TextType a name for reverse direction.Cfg_RevText
Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 201753
NoneSee Mode Configuration
Engineering
Configuration
(Code E)
display on
Cfg_Desc
Cfg_Label
Cfg_Tag
page 54.
Page 54
Variable Speed Drive (P_VSD)
Table 22 - Engineering Tab Page 2 Descriptions
FunctionActionSecurity Configuration Parameters
Drive has Run
Feedback
Drive has Speed
Feedback
Use Speed Feedback
>0 to imply running if
Run Feedback is not
used
Clear Program
Commands on Receipt
Operator command
resets fault
Check if the drive provides a run
feedback signal. This enables feedback
checking for Fail to Start and Fail to
Stop.
Clear this checkbox if there is no run
feedback.
IMPORTANT: Checking this places the
device in Maintenance Bypass unless
'Use Run Feedback' on page 1 of the
Maintenance tab is checked.
(See
Maintenance Tab on page 46.)
Check if the drive provides speed
feedback on Inp_SpeedFdbk.
IMPORTANT: Checking this option
enables the next configuration setting
and the Output Datalink Limits on page
2 of the Maintenance tab.
(See Maintenance Tab Page 2 on
page 48.)
Check if Speed feedback greater than
zero is used to signify the drive is
running.
IMPORTANT: This configuration
setting is available only if the previous
configuration setting is checked.
Check to have the P_VSD instruction
clear Program commands (PCmd) as
soon as they are received (default).
Check to have a new operator drive
command reset faults.
Clear this checkbox for ‘reset required’
to clear fault.
Engineering
Configuration
(Code E)
Engineering
Configuration
(Code E)
Cfg_HasRunFdbk
Cfg_HasSpeedFdbk
Cfg_UseSpeedFdbk
Cfg_PCmdClear
Cfg_OCmdResets
Mode Configuration Display
This display lets you select the default mode for the object by selecting the
appropriate mode.
IMPORTANT
You must have FactoryTalk View security code E to select the default mode on
this display.
If no mode is being requested, changing the default mode changes the mode
of the instruction.
54Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 2017
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Engineering Tab Page 3
Variable Speed Drive (P_VSD)
The following table lists the functions on page 3 of the Engineering tab.
Table 23 - Engineering Tab Page 3 Descriptions
FunctionActionSecurity Configuration Parameters
Drive can be joggedCheck to make the Jog command
Drive can run reverseCheck to make the forward and reverse
Enable navigation to
run Forward
Permissive object
Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 201755
button visible on the Operator tab and
enable the drive to be jogged from the
faceplate.
direction command buttons visible on
the Operator tab and enable the drive
to run forward or reverse.
Check if a permissive object is
connected to Inp_FwdPermOK. The
Permissive indicator becomes a button
that opens the permissive faceplate.
IMPORTANT: The name of the
Permissive object in the controller must
be this object's name with the suffix
‘_FwdPerm’. For example, if your
P_VSD object has the name ’Drive123’,
then its Permissive object must be
named ‘Drive123_FwdPerm’.
Engineering
Configuration
(Code E)
Cfg_HasJog
Cfg_HasReverse
Cfg_HasFwdPermObj
Page 56
Variable Speed Drive (P_VSD)
Table 23 - Engineering Tab Page 3 Descriptions
FunctionActionSecurity Configuration Parameters
Enable navigation to
run Reverse Permissive
object
Enable navigation to
Interlock object
Enable navigation to
Restart Inhibit object
Enable navigation to
Runtime object
Check if a permissive object is
connected to Inp_RevPermOK. The
Permissive indicator becomes a button
that opens the permissive faceplate.
IMPORTANT: The name of the
Permissive object in the controller must
be this object's name with the suffix
‘_RevPerm’. For example, if your P_VSD
object has the name ’Drive123’, then its
Permissive object must be named
‘Drive123_RevPerm’.
Check if an interlock object is
connected to Inp_IntlkOK. The
Interlock indicator becomes a button
that opens the interlock faceplate.
IMPORTANT: The name of the
Interlock object in the controller must
be this object's name with the suffix
‘_Intlk’. For example, if your P_VSD
object has the name’Valve123’, then its
Interlock object must be named
‘Drive123_Intlk’.
Check if a restart inhibit object is
connected. The button that opens the
Restart Inhibit faceplate appears.
IMPORTANT: The name of the Restart
Inhibit object in the controller must be
this object's name with the suffix
‘_ResInh’. For example, if your P_VSD
object has the name ‘Drive123’, then its
Restart Inhibit object must be named
‘Drive123_RunTime’.
Check if a runtime object is connected.
The button that opens the Runtime
faceplate appears.
IMPORTANT: The name of the
Runtime object in the controller must
be this object's name with the suffix
‘_RunTime’. For example, if your P_VSD
object has the name ‘Drive123’, then its
Runtime object must be named
‘Drive123_RunTime’.
Engineering
Configuration
(Code E)
Cfg_HasRevPermObj
Cfg_HasIntlkObj
Cfg_HasResInhObj
Cfg_HasRunTimeObj
56Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 2017
Page 57
Engineering Tab Page 4
Variable Speed Drive (P_VSD)
The following table lists the functions on page 4 of the Engineering tab.
Table 24 - Engineering Tab Page 4
FunctionActionSecurityConfiguration Parameter
Stop Drive on I/O FaultCheck to stop the drive if an I/O Fault is
Stop Drive on Fail to
Start
Stop Drive on Interlock
Trip
Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 201757
detected.
Clear this checkbox to only show the I/O
Fault Status/Alarm and not stop the
drive if an I/O Fault is detected.
When the bit is on and a motor Fail to
Start is detected, the drive is stopped. A
reset is required before another start can
be attempted.
If the bit is off and a drive Fail to Start is
detected, the instruction sets only the
Sts_FailToStart status (and the
Alm_FailToStart alarm, if so configured).
The outputs are not changed, so the
instruction continues to start the drive.
The drive always stops on an Interlock
trip. This item cannot be unchecked. It is
displayed as a reminder that the
Interlock Trip function always stops
the drive.
Engineering
Maintenance
(Code E)
N/ANone
Cfg_ShedOnIOFault
Cfg_ShedOnFailToStart
Page 58
Variable Speed Drive (P_VSD)
Table 24 - Engineering Tab Page 4
FunctionActionSecurityConfiguration Parameter
Speed Reference Operator keeps control
in Program Mode
Speed Reference Program keeps control
in Operator Mode
Start & Stop Commands
- Operator keeps control
in Program Mode
Start & Stop Commands
- Program keeps control
in Operator Mode
Forward & Reverse Operator keeps control
in Program Mode
Forward & Reverse Program keeps control
in Operator Mode
Output Datalink Operator keeps control
in Program Mode
Output Datalink Program keeps control
in Operator Mode
Check to keep control of the drive Speed
Reference with the Operator, even if the
instruction is in Program mode.
Clear this checkbox to have control of the
drive Speed Reference follow the
Instruction mode.
Check to keep control of the drive Speed
Reference with the Program, even if the
instruction is in Operator mode.
Clear this checkbox to have control of the
drive Speed Reference follow the
Instruction mode.
Check to keep the drive Start, Stop, and
Jog (if used) commands with the
Operator, even if the instruction is in
Program mode.
Clear this checkbox to have control of the
drive Start, Stop, and Jog follow
Instruction mode.
Check to keep control of the drive Start
and Stop commands with the Program,
even if the instruction is in Operator
mode.
IMPORTANT: The Program cannot Jog
the drive, even if Jogging is enabled.
Clear this checkbox to have control of the
drive Start, Stop, and Jog follow
Instruction mode.
Check to keep control of the drive
Forward and Reverse commands, if
used, with the Operator, even if the
instruction is in Program mode.
Clear this checkbox to have control of the
drive Forward and Reverse commands
follow the Instruction mode.
Check to keep control of the drive
Forward and Reverse commands (if
used) with the Program, even if the
instruction is in Operator mode.
Clear this checkbox to have control of the
of the drive Forward and Reverse
commands follow the Instruction mode.
Check to keep control of the Output
Datalink Setting (if used) with the
Operator, even if the instruction is in
Program mode.
Clear this checkbox to have control of the
Output Datalink setting follow the
Instruction mode.
Check to keep control of the Output
Datalink setting (if used) with the
Program, even if the instruction is in
Operator mode.
Clear this checkbox to have control of the
Output Datalink setting follow the
Instruction mode.
Engineering
Maintenance
(Code E)
Engineering
Maintenance
(Code E)
Cfg_OperKeep.0
Cfg_ProgKeep.0
Cfg_OperKeep.1
Cfg_ProgKeep.1
Cfg_OperKeep.2
Cfg_ProgKeep.2
Cfg_Cfg_OperKeep.3
Cfg_Cfg_ProgKeep.3
58Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 2017
Page 59
Engineering Tab Page 5
Variable Speed Drive (P_VSD)
The following table lists the functions on page 5 of the Engineering tab.
Table 25 - Engineering Tab Page 5 Description
FunctionActionSecurity Configuration Parameters
Operator ‘Stop’
command available in
any mode
Allow local ‘Start’ or
‘Stop’ without
triggering alarm
Time to ramp speed
feedback in Loopback
Test (Seconds)
Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 201759
Check (= 1) so that the OCmd_Stop has
priority and is accepted at any time.
Clear this checkbox (= 0) so that the
OCmd_Stop works only in Operator or
Maintenance mode.
Check (= 1) to allow local start/stop
without an alarm.
Clear this checkbox (= 0) to
start/stop from the HMI or program
only.
Enter the time, in seconds, to ramp
speed feedback when in Simulation.
Engineering
Maintenance
(Code E)
Cfg_OperStopPrio
Cfg_AllowLocal
Cfg_SimRampT
Page 60
Variable Speed Drive (P_VSD)
Engineering Tab Page 6
Input Datalink
Raw Max/Min
Output Datalink
Scaled Max/Min
Input Datalink
Scaled Max/Min
Output Datalink
Raw Max/Min
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Page 61
Variable Speed Drive (P_VSD)
The following table lists the functions for page 6 of the Engineering tab.
Table 26 - Engineering Tab Page 6 Description
FunctionActionSecurityConfiguration Parameter
Drive has Input DatalinkCheck if Inp_Datalink is used.
Input DatalinkType the text to display for the
Input Datalink Raw
(Input)
Input Datalink Scaled
(Scaled)
Input UnitsType the text to display for the
Drive has Output DatalinkCheck if Out_Datalink is used.
Output DatalinkEnter the text to display for the
Output Datalink Scaled
(Scaled)
Output Datalink Raw
(Output)
Output UnitsEnter the text to display for the
This makes the Input Datalink
configuration and operation
functions visible.
Input Datalink’s label.
Configure the minimum and
maximum raw (from the drive)
units for the Input Datalink.
Configure the minimum and
maximum scaled values for the
Input Datalink in Engineering
Units.
Input Datalink’s units of measure.
This makes the Output Datalink
configuration and operation
functions visible.
Output Datalink’s label.
Configure the minimum and
maximum scaled values for the
Output Datalink in Engineering
Units.
Configure the minimum and
maximum scaled values for the
Output Datalink in Raw (to the
drive) Units, and enter the text to
display for the Output Datalink’s
label and units of measure.
Output Datalink’s units of
measure.
Engineering
Maintenance
(Code E)
Cfg_HasInpDatalink
Cfg_InpDataLinkLabel
• Cfg_InpDatalinkRawMin
• Cfg_InpDatalinkRawMax
• Cfg_InpDatalinkEUMin
• Cfg_InpDatalinkEUMax
Cfg_InpDataLinkEU
Cfg_HasOutDatalink
Cfg_OutDataLinkLabel
• Cfg_OutDatalinkEUMin
• Cfg_OutDatalinkEUMax
• Cfg_OutDatalinkRawMin
• Cfg_OutDatalinkRawMax
Cfg_OutDataLinkEU
Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 201761
Page 62
Variable Speed Drive (P_VSD)
Diagnostics Tab
The Diagnostic tab provides indications that are helpful in diagnosing or
preventing device problems, which can include specific reasons a device is 'Not
Ready', device warnings and faults, warning and fault history, and predictive/
preventive maintenance data.
The Diagnostics tab displays possible reasons the device is not ready.
The previous image indicates the device is not ready because of an I/O fault. This
is a latched shed condition that requires a reset.
62Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 2017
Page 63
(Blue) Speed Reference
Variable Speed Drive (P_VSD)
Trends
The Trends tab shows trend charts of key device data over time. These faceplate
trends provide a quick view of current device performance to supplement, but not
replace, dedicated historical or live trend displays.
(Green) Speed Feedback
Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 201763
Page 64
Variable Speed Drive (P_VSD)
Alarms Tab
The Alarms tab displays each configured alarm for the P_VSD instruction. The
icon on the tab for the alarms page changes color based on the current active
alarms. A blinking alarm icon indicates that one or more alarms must be
acknowledged or the device must be reset.
Device Not
Ready Indicator
Alarm Names
Alarm
Severity
Indicator
Acknowledge Alarm
Command Button
Reset and Acknowledge
All Alarms Command
Button
IMPORTANT
The 'Failed to Start' and 'Failed to Stop' alarms are available only if 'Drive has
Run Feedback' or 'Drive has Speed Feedback' on page 2 of the Engineering tab
is checked. (See
Engineering Tab Page 2 on page 53.)
Click an alarm name to open the P_Alarm faceplate for that alarm. From the
P_Alarm faceplate, you can configure and perform additional operations on
the alarm.
If an alarm is active, the panel behind the alarm changes color to match the
severity of the alarm. The color of the bell icon at the top of the faceplate shows
the severity of the highest active alarm, and the icon blinks if any alarm is
unacknowledged or requires reset.
64Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 2017
Page 65
Variable Speed Drive (P_VSD)
Table 27 - Alarm Severity Colors
ColorDefinition
MagentaUrgent
RedHigh
YellowMedium
BlueLow
White (bell icon)Alarm has cleared but is unacknowledged
Background (Light Gray)No alarm
The following table shows the functions on the Alarms tab.
Table 28 - Alarms Tab Description
FunctionActionSecurity
Alarm NameClick an alarm name to open the associated
P_Alarm faceplate.
Click to acknowledge the alarm.Acknowledge Alarms
None
(Code F)
Click to reset and acknowledge all alarms.
When the Reset and Acknowledge All Alarms button is enabled, the panel
behind the alarm blinks, indicating the alarm requires acknowledgement or reset.
The Alarm Acknowledge button is enabled if the alarm requires
acknowledgment. Click the button with the check mark to acknowledge the
alarm.
See Rockwell Automation Library of Process Objects: Common Alarm Block
(P_Alarm) Reference Manual, publication
SYSLIB-RM002, for
more information.
Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 201765
Page 66
Variable Speed Drive (P_VSD)
Variable Speed Drive Faceplate Help
The Faceplate Help is divided into two pages.
Faceplate Help Page 1
Faceplate Help Page 2
66Rockwell Automation Publication SYSLIB-RM016G-EN-E - February 2017
Page 67
Page 68
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