Bray Series 70 User manual

SERIES 70
SERVO NXT - DeviceNet™
Installation, Operation and Maintenance Manual
THE HIGH PERFORMANCE COMPANYBR AY.COM
Network Status
Mac ID
125K 250K
Baud Rate
Reprogram
Open/Close
Controller Status
Autocal
Begin
Autocalibration
Fault
500K

FOR MORE INFORMATION ON THIS PRODUCT AND OTHER BRAY PRODUCTS
PLEASE VISIT OUR WEBSITE – www.bray.com

1
Series 70
Servo NXT - DeviceNet™
Installation, Operation and Maintenance Manual
Table of Contents
1.0 Safety Instructions - Definition of Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.1 Definition of Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.2 Description of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
3. Hardware Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
3.1 User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
3.1.1 LED Indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
3.1.1.1 Mac ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
3.1.1.2 Network Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
3.1.1.3 Module Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3.1.1.4 - 125K . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3.1.1.5 - 250K . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3.1.1.6 - 500K . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3.1.1.7 Reprogram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3.1.1.8 Open/Close . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3.1.1.9 Autocal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3.1.1.10 Controller Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3.1.1.11 Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3.1.2 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3.1.2.1 Up arrow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3.1.2.2 Down arrow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3.1.2.3 Right arrow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3.1.2.4 Autocalibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3.2 Controller Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3.2.1 Input Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.2.2 Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.2.3 Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.2.4 FB Pot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.2.5 Cntrl Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.2.6 Handwheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.2.7 Torque Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.2.8 Limit Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.2.9 DeviceNet™ Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
4. DeviceNet™ Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.1 DeviceNet™ Network Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
4.1.1 Network connections, terminations, power, and limits . . . . . . . . . . . . . . . . . .10
4.1.2 Network grounding and isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.1.3 Network power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

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Series 70
Servo NXT - DeviceNet™
Installation, Operation and Maintenance Manual
4.2 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.3 Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
4.3.1 EDS (Electronic Data Sheet) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.4 Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.4.1 Polled Message Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.4.2 Explicit Message Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
4.5 Supported Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
4.5.1 Attribute Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.5.1.1 Parameter 1 – Set Valve Position . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.5.1.2 Parameter 4 – Actuator Operational Status . . . . . . . . . . . . . . . . . . . . . 15
4.5.1.3 Parameter 5 – Travel Limit Switch Status . . . . . . . . . . . . . . . . . . . . . . 15
4.5.1.4 Parameter 6 – Torque Limit Switch Status . . . . . . . . . . . . . . . . . . . . . . 16
4.5.1.5 Parameter 7 – Actuator Control State . . . . . . . . . . . . . . . . . . . . . . . .16
4.5.1.6 Parameter 8 – Handwheel Switch Status . . . . . . . . . . . . . . . . . . . . . . 16
4.5.1.7 Parameter 9 – Set Motor Speed Control State. . . . . . . . . . . . . . . . . . . .16
4.5.1.8 Parameter 10 – Set Motor Speed: Open Direction . . . . . . . . . . . . . . . . . .17
4.5.1.9 Parameter 11 – Set Speed Control Begin: Open Direction . . . . . . . . . . . . . . 17
4.5.1.10 Parameter 12 – Set Speed Control End: Open Direction . . . . . . . . . . . . . . 17
4.5.1.11 Parameter 13 – Set Motor Speed: Close Direction . . . . . . . . . . . . . . . . . 18
4.5.1.12 Parameter 14 – Set Speed Control Begin: Close Direction . . . . . . . . . . . . . 18
4.5.1.13 Parameter 15 – Set Speed Control End: Close Direction . . . . . . . . . . . . . . 18
4.5.1.14 Parameter 16 – Enable Failure Mode Position . . . . . . . . . . . . . . . . . . . 19
4.5.1.15 Parameter 17 – Set Failure Mode Position . . . . . . . . . . . . . . . . . . . . . 19
4.5.1.16 Parameter 18 – Set Motor Instantaneous Reversal Delay . . . . . . . . . . . . . .19
4.5.1.17 Parameter 19 – Set Position Deadband . . . . . . . . . . . . . . . . . . . . . . 19
4.5.1.18 Parameter 20 – Set Torque Limit State . . . . . . . . . . . . . . . . . . . . . . . 20
4.5.1.19 Parameter 21 – Set Torque Limit State . . . . . . . . . . . . . . . . . . . . . . . 20
4.5.1.20 Parameter 22 – Set Autocalibration Mode . . . . . . . . . . . . . . . . . . . . . 20
4.5.1.21 Parameter 23 – Fault Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.5.1.22 Parameter 24 – Local Control Switch Status . . . . . . . . . . . . . . . . . . . . 21
4.5.1.23.Parameter 25 – Set Data Configuration . . . . . . . . . . . . . . . . . . . . . . 22
5. Quick Start guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
5.1 Start-up sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.2 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3
Series 70
Servo NXT - DeviceNet™
Installation, Operation and Maintenance Manual
1.0 Safety Instructions - Definition of Terms
READ AND FOLLOW THESE INSTRUCTIONS
SAVE THESE INSTRUCTIONS
WARNING Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION Indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury.
NOTICE
Used without the safety alert symbol indicates a potential situation
which, if not avoided, may result in an undesirable result or state,
including property damage.
!
!
1.1 Hazard-free Use
This device left the factory in proper condition to
be safely installed and operated in a hazard-free
manner. The notes and warnings in this document
must be observed by the user if this safe condition
is to be maintained and hazard-free operation of
the device assured.
Take all necessary precautions to prevent damage
to the device due to rough handling, impact, or
improper storage. Do not use abrasive compounds
to clean the device, or scrape its surfaces with any
objects.
Configuration and calibration procedures are
described in this document. Proper configuration
and calibration is required for the safe operation
of the device.
The control system in which the device is installed
must have proper safeguards to prevent injury to
personnel, or damage to equipment, should failure
of system components occur.
This document does not cover every detail about
every version of the product described. It cannot
take into account every potential occurrence in
installation, operation, maintenance and use.
If situations transpire that are not documented
in sufficient detail, please request the required
information from the Bray distributor or
representative responsible for your area.
1.2 Qualified Personnel
A qualified person in terms of this document is one
who is familiar with the installation, commissioning
and operation ofthedeviceandwho has appropriate
qualifications, such as:
• Is trained in the operation and maintenance of
electric equipment and systems in accordance
with established safety practices
• Is trained or authorized to energize, de-energize,
ground, tag and lock electrical circuits and
equipment in accordance with established
safety practices
• Is trained in the proper use and care of personal
protective equipment (PPE) in accordance with
established safety practices
• Is trained in first aid
• In cases where the device is installed in a
potentially explosive (hazardous) location – is
trained in the operation, commissioning,
operation and maintenance of equipment in
hazardous locations

4
Series 70
Servo NXT - DeviceNet™
Installation, Operation and Maintenance Manual
!
WARNING
The device must only be installed, commissioned,
operated and repaired by qualified personnel.
The device is designed for installation inside the
Bray S70 Electric Actuator, and to position an
industrial quarter-turn valve. It must be installed
according to its intended purpose.
The device controls the movement of an electric
actuator that generates large mechanical forces.
To prevent injury, installation, commissioning,
operation and maintenance must be carried out
under strict observation of the applicable safety
regulations.
The specifications of the examination certificate
valid in the applicable country must be observed.
This includes the actuator in which the device is
installed.
Verify that the main electric power supplied to
the device is compliant with the specifications
on the product label and the specifications in
the examination certificate valid in the applicable
country.
Avoid electrostatic discharges within hazardous
areas.
The housings and external connections on the
actuators (in which the device is installed) may
only be opened after all electrical power to the
actuator has been removed.
Correct and safe operation of the device is
dependent upon proper transport, storage and
installation in addition to proper operation and
maintenance.
1.3 Intended Use
The device described in this guide has been
developed, manufactured, tested and documented
with all relevant safety standards taken into
account. If the handling rules and safety
information for configuration, calibration,
installation and maintenance are observed, and
the product is used for its intended purpose, there
is normally no danger with regard to material
damage or personnel health.
1.4 Warranty Information
The content of this document is not part of, and
does not modify, a previous or current agreement,
undertaking or legal relationship. Bray Controls is
bound solely by the contract of sale, which also
contains the complete and exclusive warranty.
The contractual warranty conditions are neither
extended nor restricted by this document.

5
Series 70
Servo NXT - DeviceNet™
Installation, Operation and Maintenance Manual
2. Introduction
The Bray Series 70 Servo NXT - DeviceNet™ is a bus-
based controller that provides complete control and
monitoring of the Bray Series 70 Electric Actuator. It
accomplishes this by interfacing with a DeviceNet™
network, over which commands can be received
and feedback can be returned. Once connected
to the DeviceNet™ network, the Bray Series 70
Servo NXT - DeviceNet™ becomes part of a larger
system, which is required to ensure proper use of
the device. To refer to the elements of the system,
a common terminology is used throughout this
document, as defined below.
2.1 Definition of Terms
• Actuator Controller – Bray Series 70 Servo NXT
- DeviceNet™
• Actuator – Bray Series 70 Quarter-Turn Electric
Actuator
• Process Controller – Device that communicates
with the Actuator Controller via the DeviceNet™
network. The Process Controller acts as the
Master on the DeviceNet™ Network.
2.2 Description of Operation
The function of the Actuator Controller is to position
the Actuator in response to commands from the
ProcessController. As the Actuator position changes,
the attached valve creates a change in the flow of
the medium that it controls. This change in medium
flow rate is referred to as a process variable. As the
Process Controller monitors this process variable, it
is able to adjust the commands sent to the Actuator
Controller to achieve the optimal position(s) for
the process.
These commands come in the form of DeviceNet™
messages, which follow a predefined format as
established by the ODVA (Open DeviceNet™ Vendor
Association, Inc.) in the CIP (Common Industrial
Protocol) standards. The Process Controller must
be configured beforehand to properly interface
with the Actuator Controller and ensure the correct
information is exchanged. Refer to section 5 for
information on the DeviceNet™ interface.
3. Hardware Description
3.1 User Interface
The Actuator Controller features a full user interface
providing control and status of the device. This
section details all aspects of the user interface
and their function. Refer to Figure 1 throughout
section 3.1.
Figure 1: S70 Servo NXT - DeviceNet™

6
Series 70
Servo NXT - DeviceNet™
Installation, Operation and Maintenance Manual
3.1.1 LED Indication
3.1.1.1 Mac ID
Shows the current Node Address for the Actuator
Controller. Refer to the switch section for
information on changing this value.
In the event of a fault, this display will alternate
between the current Node Address and the Active
Fault Code. The Active Fault Code aligns with the
fault codes listed for DeviceNet™ parameter 23,
Fault Status. They are listed here for reference:
E1 – Miswire – Check actuator wiring
E2 – Motor Stall – Motor is not moving the actuator
as expected
E3 – Feedback Fault – Position feedback is out-
of-range
E4 – Temperature Fault – Controller has exceeded
safe operating temperature
E5 – AutoCal Fault - Autocalibration has failed to
complete
E6 – Limit SW Fault - Limit Switches are miswired
E7 – Overtorque – Actuator has exceeeded its
operational torque limits
E8 – Handwheel - Handwheel is engaged
E9 – Error - Controller requires reset
3.1.1.2 Network Status
See Table 1 below for more information.
Table 1 - Network Status LED
For this state: LED is: To indicate:
Not Powered/Not On–line Off Device is not on–line.
- The device has not completed the Dup_MAC_ID test yet.
- The device may not be powered, look at Module Status LED.
- No network power present.
On–line, Not Connected Flashing
Green1
Device is on–line but has no connections in the established state.
- The device has passed the Dup_MAC_ID test, is on–line, but has no
established connections to other nodes.
- For a Group 2 Only device it means that this device is not allocated
to a master.
- For a UCMM capable device it means that the device has no estab-
lished connections
Link OK
On–line, Connected
Green The device is on–line and has connections in the established state.
- For a Group 2 Only device it means that the device is allocated to a
Master.
- For a UCMM capable device it means that the device has one or more
established connections.
Connection Time–Out Flashing
Red1
One or more I/O Connections are in the Timed–Out state.
Critical Link Failure Red Failed communication device. The device has detected an error that has
rendered it incapable of communicating on the network.
(Duplicate MAC ID, or Bus–off).
Communication Faulted
and Received an Identify
Comm Fault Request -
Long Protocol
Flashing
Red &
Green2
A specific Communication Faulted device. The device has detected a
Network Access error and is in the Communication Faulted state. The
device has subsequently received and accepted an Identify Communica-
tion Faulted Request - Long Protocol message.
1 For information on LED flash rates, refer to section 9-2.8
2 For information on LED flash rates, refer to Chapter 2, section 2-11.4.3
Page 9-5 of The CIP Networks Library, Volume 3, DeviceNet™ Adaptation of CIP, Ed. 1.14, Nov. 2013

7
Series 70
Servo NXT - DeviceNet™
Installation, Operation and Maintenance Manual
3.1.1.3 Module Status
See Table 2 below for more information.
3.1.1.4 - 125K
When illuminated, indicates that the Actuator
Controller is communicating at a data rate
of 125Kbaud. Refer to the switch section for
information on changing this value.
3.1.1.5 - 250K
When illuminated, indicates that the Actuator
Controller is communicating at a data rate
of 250Kbaud. Refer to the switch section for
information on changing this value.
3.1.1.6 - 500K
When illuminated, indicates that the Actuator
Controller is communicating at a data rate
of 500Kbaud. Refer to the switch section for
information on changing this value.
3.1.1.7 Reprogram
Whenflashing,indicatesthattheActuatorController
is attempting to reboot for reprogramming
purposes
3.1.1.8 Open/Close
Green flashing – Indicates that the Actuator motor
is being energized to open the valve
Green steady – Indicates that the Actuator has
fully opened the valve
Red flashing – Indicates that the Actuator motor
is being energized to close the valve
Red steady – Indicates that the Actuator has fully
closed the valve
3.1.1.9 Autocal
White flashing – Actuator Controller is in
Autocalibration mode and the motor is stationary.
White steady – Actuator Controller is in
Autocalibration mode and the motor is rotating.
3.1.1.10 Controller Status
Flashing light that indicates that the Actuator
Controller is operating normally.
3.1.1.11 Fault
Illuminates when there is a fault condition. Refer
to the section 3.1.1.1 for more information on
the fault state.
Table 2 - Module Status LED
For this state: LED is: To indicate:
No Power Off There is no power applied to the device.
Device Operational Green The device is operating in a normal condition.
Device in Standby
(The Device Needs
Commissioning)
Flashing
Green1
The device needs commissioning due to configuration missing,
incomplete or incorrect. The Device may be in the Standby state.
Reference the Identity Object in Volume 1, Chapter 5: Object Library.
Recoverable Fault Flashing
Red1
The device has a recoverable fault.
Unrecoverable Fault Red The device has an unrecoverable fault; may need replacing.
Device Self Testing Flashing
Red-
Green1
The Device is in Self Test.
Reference the Identity Object in Volume II for Device states.
1 For information on LED flash rates, refer to section 9-2.8
Page 9-3 of The CIP Networks Library, Volume 3, DeviceNet™ Adaptation of CIP, Ed. 1.14, Nov. 2013

8
Series 70
Servo NXT - DeviceNet™
Installation, Operation and Maintenance Manual
3.1.2 Switches
3.1.2.1 Up Arrow
When held for 1 second, allows the Mac ID to be
adjusted. The Mac ID value will flash to indicate
that it is adjustable. Pressing the up arrow while
the Mac ID is adjustable will increase the Mac ID
by 1. If the up or down arrow is not pressed for 3
seconds, then the Mac ID will exit the adjustable
state, retaining its last value.
3.1.2.2 Down Arrow
When held for 1 second, allows the Mac ID to be
adjusted. The Mac ID value will flash to indicate
that it is adjustable. Pressing the down arrow while
the Mac ID is adjustable will decrease the Mac ID
by 1. If the up or down arrow is not pressed for 3
seconds, then the Mac ID will exit the adjustable
state, retaining its last value
Valid Mac ID range: 0-63
3.1.2.3 Right Arrow
When held for 1 second, allows the Baud Rate to be
adjusted. The Baud Rate value will flash to indicate
that it is adjustable. Pressing the right arrow while
the Baud Rate is adjustable will move the Baud Rate
value to the next highest option. If the right arrow
is not pressed for 3 seconds, then the Baud Rate
will exit the adjustable state, retaining its last value.
Valid Baud Rates: 125K, 250K, and 500K baud
3.1.2.4 Autocalibration
Pressing and releasing this button will cause the
Actuator Controller to enter Autocalibration mode.
3.2 Controller Wiring
For the Actuator Controller to operate the Actuator
correctly, the unit must be connectedto the Actuator
components to energize the motor and monitor
operation. This section details how these Actuator
components areterminated into the controller. Refer
to Figure 2 throughout section 2.2.
All connections not referenced are factory
connections and should not be used. Refer to the
actuator wiring diagram for locations of preexisting
component wire terminations, and also refer to
the Series 70 O&M manual for further explanation
on the proper installation and usage of actuator
components. See Figure 3 for an example wiring
diagram.
Figure 2: Servo NXT - DeviceNet™ - Wiring Designations
COM
POWER
WIPER
COM
CLOSE
OPEN
COM
HW
COM1
COM2
CLOSE
OPEN
COM1
COM2
CLOSE
OPEN
CAN_L
SHIELD
CAN_H
V+
NEUTRAL
LIVE
NEUTRAL
LIVE
CLOSE
NEUTRAL
OPEN
V-

9
Series 70
Servo NXT - DeviceNet™
Installation, Operation and Maintenance Manual
3.2.1 Input Power
Power connection that energizes the Actuator
Controller and provides power to the Actuator
motor. Connection should provide the standard
North American supply voltage: Single-phase
120VAC +/- 10%, 60Hz. The controller has an
onboard protective fuse rated to 5A, so the power
connection should be able to provide at least this
much current.
3.2.2 Heater
If the Series 70 actuator has an internal heater,
then the heater wires should be terminated at this
connection.
3.2.3 Motor
Connections for the motor that operates the
Actuator.
CLOSE – Red Wire
NEUTRAL – Yellow or Black Wire
OPEN – Blue Wire
3.2.4 FB Pot
Connections for the Feedback Potentiometer,
used by the controller to determine the position
of the valve..
COM – White Wire
WIPER – Orange Wire
POWER – Grey Wire
3.2.5 Cntrl Box
Connections for the control box, if present.
The control box allows for local operation of
the Actuator, overriding commands from the
DeviceNet™ network.
COM – Green Wire
CLOSE – Red Wire
OPEN – Blue Wire
3.2.6 Handwheel
Connections for the handwheel override switch.
When the Actuator handwheel is engaged (pulled
out), this switch prevents the Actuator from
operating until the handwheel is disengaged.
COM & HW – Yellow Wire
3.2.7 Torque Switches
Connections for the mechanical torque switch
assembly. These switches alert the Actuator
Controller to the occurrence of excessive torque
on the Actuator mechanical components.
COM1 & CLOSE – Red Wire
COM2 & OPEN – Blue Wire
3.2.8 Limit Switches
Connections for the travel limit switches. These
switches prevent the Actuator from operating the
valve outside the acceptable range of travel.
COM1 & CLOSE – Red Wire
COM2 & OPEN – Blue Wire
3.2.9 DeviceNet™ Connector
Male Open Connector which provides the
DeviceNet™ network connection point for the
device. This connector pinout is in alignment with
the currentCIP standards, and therequired customer
wiring is provided below.
Figure 3 Open Connector Pinout
Page 8-80 of The CIP Networks Library, Volume 3, DeviceNet™ Adaptation of CIP, Ed. 1.14, Nov. 2013
1 V- black
2 CAN_L blue
3 drain bare
4 CAN_H white
5 V+ red
Network Connector (Female Contacts)
1 2 3 4 5
Device Connector (Male Contacts
)

10
Series 70
Servo NXT - DeviceNet™
Installation, Operation and Maintenance Manual
4. DeviceNet™ Interface
4.1 DeviceNet™ Network Requirements
All information provided in this manual on
DeviceNet™ network requirements is for reference
only. For the full ODVA requirements, refer to
Publication 27R1, Planning and Installation Manual,
DeviceNet™ Cable System, which is freely available
on the ODVA website (www.odva.org). In the event
that the information in the two documents are
divergent, information and requirements in the
ODVA documentation supersedes the information
in this document.
4.1.1 Network Connections,
Terminations, Power, and Limits
Devices on the network are connected as shown
in Figure 2. The network consists of two types of
cable; a trunk-line cable and a drop cable. The Trunk
line cable is a thicker cable that spans the length of
the network. A device is attached to the Trunk line
directly by using either a Tap or indirectly by using
a Tap and a drop cable. The Drop cable is not as
thick as the Trunk line and is only used to connect
a single device to the bus.
A terminator of121ohmsisrequired at eachextreme
end of the trunk. The terminator is attached to the
end of the trunk and not to the end of a cable drop.
The resistor requirements are:
• 121 ohm
• 1% Metal Film
• 1/4 Watt
Terminating resistors should never be included in
nodes. Inclusion of this capability could easily lead
to a network with improper termination (too high or
too low an impedance) potentially causing failure.
For example, removal of a node that includes a
terminating resistor could result in network failure.
Devices along the truck-line are attached with
Taps (Figure 3) so that any device can be removed
or replaced without disconnecting the trunk-line.
This feature provides the ability to interchange
devices on a network while it isoperational reducing
network downtime.
Both the trunk-line and drop cables consist of 4
wires and a shield. The trunk-line and drop cable
are limited in length and are also effected by the
speed of the network.
Figure 4: Servo NXT - DeviceNet™ - Example Wiring Diagram
A Division of BRAY INTERNATIONAL, Inc.
COM
POWER
WIPER
COM
CLOSE
OPEN
COM
HW
COM1
COM2
CLOSE
OPEN
COM1
COM2
CLOSE
OPEN
CAN_L
SHIELD
CAN_H
V+
NEUTRAL
LIVE
NEUTRAL
LIVE
CLOSE
NEUTRAL
OPEN
V-

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Figure 5: Example DeviceNet™ - communication link
Figure 6: Example of Network connection with tap, Trunk line, and Drop line.
SMC
Allen-Bradley
Drive
Sensor
Bar Code Scanne
r
D
evice Configuration
Other
Devices
Motor
Controller
Controller
DeviceNet
Pushbutton
Cluster
Motor
Starter
Input/Output
Devices

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4.1.2 Network Grounding and Isolation
DeviceNet™ should be grounded at ONE location.
Grounding at more than one location may produce
ground loops, while not grounding the network
will increase sensitivity to ESD and outside noise
sources. Grounding near the physical center of the
network is desired.
The trunk drain/shield should be attached to the
power supply ground or V with a copper conductor
that is either solid, stranded, or braided. Use a 1”
copper braid or a #8 AWG wire that is less than
3 meters/10 feet in length. This should then be
attached to a good earth or building ground (such
as an 8 foot stake driven into the ground, attached
to building iron or to the cold water plumbing).
If the network is already grounded, do NOT connect
the grounding terminal of the tap or ground of the
supply to earth. If more than one supply is on the
network, then connect the drain wire/shield at ONE
supply only, preferably near the physical center of
the network.
4.1.3 Network Power
DeviceNet™ has a single supply current capability
of up to 16 amps using a thick cable trunk line,
and up to 6 amps using a thin cable trunk line,
which makes the network highly functional and
cost effective.
Power configuration is adjustable based on your
system requirements. The DeviceNet™ power bus
is supplied by a nominal 24 volt source and can
support up to 8 amps on any section of thick cable
trunk line or up to 3 amps on any section of thin
cable trunk line. Since this much current can be
drawn from each sideof a powertap, a singlesupply
network can possibly provide twice these current
levels. If the system has even greater requirements,
DeviceNetÔ can support multiple power supplies.
The network power supply can be placed at the end
or at the center of the network. By examining the
current requirements of the network, the power
supply should be placed such that the maximum
current specification is not exceeded.
The selection of the power supply should ensure a
tolerance of +24 VDC +/ 1% and current capability
of 016 amps.
4.2 Configuration
When adding the Actuator Controller to a
DeviceNet™ network, it must be configured with
the correct network Baud Rate and it must also
have a unique Mac ID. The Actuator Controller
should not be added to an existing network until
the MAC ID and Baud rate have been properly set.
If the Actuator Controlleris added toa network with
either a conflicting MAC ID or incorrect Baud rate,
the network will not be effected, but the Actuator
Controller will be taken offline as indicated by a
solid red color on the Network LED. The unit must
then be removed from the network and then added
after the conflicts have been resolved.
If the MAC ID or Baud Rate needs to be changed,
then the unit should be powered on with AC power,
allowing the necessary changes to be made before
connecting the device to the DeviceNet™ network.
4.3 Commissioning
Commissioning is the process of taking the Actuator
Controller from the on-line state to establishing
a dedicated connection with a master on the
network. The controller supports a Polled network
connection and an Explicit message connection.
These connections are supported simultaneously
but only one connection of each type is supported
at a time.
When the controller transitions from the On-line
state to the Commissioned state, the Network LED
will change from flashing green to a solid green.
When the Master / Slave relationship is released,
the Network Led will return to a flashing green.
The Process Controller needstohavetheinformation
contained in the EDS file of the Actuator Controller
referenced before commissioning will occur.
4.3.1 EDS (Electronic Data Sheet)
An EDS (Electronic Data Sheet) is an external file
that contains information about configurable
attributes for a device, including object addresses
of each parameter. The EDS provides the user
with a simple to use interface for configuring and
monitoring a device.
The EDS file is included with the Actuator Controller
to aide in commissioning. Products such as the
Process Controller will use the EDS to automatically
obtain the data that is required for configuration.
When the Actuator Controller EDS file is accessed
through an application, all of the parameters
available for monitoring and configuration are
displayed. EDS parameters which are settable can
be modified and saved to the Actuator Controller.
Depending upon the EDS enabled application that
is used, features such as monitoring are available

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which provide the user with a continuously updated
display the selected parameter group.
4.4 Communication
All communication with the Actuator Controller
takes place over the DeviceNet™ network. The
DeviceNet™ interface gives the user the ability to
control and monitor the Actuator Controller.
The Actuator Controller supports standard
DeviceNet™ Polled and Explicit messaging
connections.
4.4.1 Polled Message Connection
A polled message connection provides a Process
Controller with the ability to rapidly send and
receive short messages to all devices on a network
in a “polled” fashion. This is typically the main
communication mode of a Process Controller.
The Polled message sent by the master must be 2
bytes and correspondsto a requested valve position.
The Actuator Controller responds with 2 bytes,
which corresponds to the current valve position,
plus the option to include status bits. See Parameter
25 in the Supported Attributes section.
4.4.2 Explicit Message Connection
An explicit message connection provides the
Master with the ability to directly access a particular
parameter that is supported by the Actuator
Controller. These parameters are accessed by using
the “GET” or “SET” DeviceNet™ attribute service.
As an example, an Explicit Message can be used to
position the valve and set the supported attributes.
4.5 Supported Attributes
The Actuator Controller supports attributes in
Application Class 100, Instance 1, which provide
access to the features that are also accessible in the
EDS (Electronic Data Sheet). These attributes are
provided in the event the user wishes to monitor
or control aspects of the controller beyond a polled
message connection.
A ProcessController will typically access theActuator
Controller through a polled message connection.
A polled message connection only sends and
receives the Actuator Controller actuator position.
To monitor or control additional features of the
Actuator Controller, an explicit message must be
sent to the appropriate attribute.
All attributes can be read (GET service) and set (SET
Service) unless otherwise noted. As an example,
attribute 100, Valve position, if “SET”wouldposition
the valve, iftheattributewere read (GET), thepresent
valve position would be returned.
The EDS (Electronic Data Sheet) file, which is
provided with the Actuator Controller, contains the
most current information pertaining to attribute
data. Use the EDS as a reference for data types,
data formats, and data conversion. Also check the
Bray website to obtain the latest EDS file for the
Actuator Controller (www.bray.com).

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Table 3: S70 Servo NXT - DeviceNet™ supported attributes
Param Attribute Description Attribute
(Hex)
Attribute
(Decimal)
1 Set Valve Position 0x64 100
4 Actuator Operational Status10x67 103
5 Travel Limit Switch Status10x69 105
6 Torque Limit Switch Status10x72 114
7 Actuator Control State10x68 104
8 Handwheel Switch Status10x71 113
9 Set Motor Speed Control State 0x73 115
10 Set Motor Speed: Open Direction 0x74 116
11 Set Speed Control Begin: Open Direction 0x75 117
12 Set Speed Control End: Open Direction 0x76 118
13 Set Motor Speed: Close Direction 0x77 119
14 Set Speed Control Begin: Close Direction 0x78 120
15 Set Speed Control End: Close Direction 0x79 121
16 Set Failure Mode Position Control State 0x7A 122
17 Set Failure Mode Return Position 0x7B 123
18 Set Instantaneous Motor Reversal Delay 0x7C 124
19 Set Position Deadband 0x90 144
20 Set Torque Limit State 0x91 145
21 Serial Number10xC0 192
22 Set Autocalibration Mode 0x88 136
23 Fault Status10xC3 195
24 Local Control Switch Status10x70 112
25 Set Data Configuration 0xC5 197
1 Attributes which are read-only.

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4.5.1 Attribute Descriptions
4.5.1.1 Parameter 1 – Set Valve Position
Attribute 100
Size 2 bytes
Read/Write RW
Range 0-100% (0-4096)
Description Determines the position of the actuator.
0% - Fully Closed (default)
100% - Fully Open
4.5.1.2 Parameter 4 – Actuator Operational Status
Attribute 103
Size 1 byte
Read/Write R
Description Provides the current operational status of the actuator.
0 – Stopped
1 – Opening
2 – Closing
3 – Calibrating
4.5.1.3 Parameter 5 – Travel Limit Switch Status
Attribute 105
Size 1 byte
Read/Write R
Description Provides feedback on the position of the actuator, based on the state of the
limit switches.
0 – Actuator at midtravel position
1 – Actuator Open
2 – Actuator Closed
3 – Limit Switch Fault

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4.5.1.4 Parameter 6 – Torque Limit Switch Status
Attribute 114
Size 1 byte
Read/Write R
Description Provides the status of the torque limit switches.
0 – Normal
1 – Open direction torque limit reached
2 – Close direction torque limit reached
4.5.1.5 Parameter 7 – Actuator Control State
Attribute 104
Size 1 byte
Read/Write R
Description Indicates whether the actuator is being controlled remotely via the DeviceNet™
network or locally from a control station.
0 – Remote
1 – Local
4.5.1.6 Parameter 8 – Handwheel Switch Status
Attribute 113
Size 1 byte
Read/Write R
Description Provides the state of the Actuator handwheel.
0 – Disengaged (Pushed In)
1 – Engaged (Pulled Out)
4.5.1.7 Parameter 9 – Set Motor Speed Control State
Attribute 115
Size 1 byte
Read/Write RW
Description Determines whether the running speed of the actuator is limited to a user
defined value.
0 – Disabled
1 – Enabled

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4.5.1.8 Parameter 10 – Set Motor Speed: Open Direction
Attribute 116
Size 1 byte
Range 1-100% (1-255)
Read/Write RW
Description If Parameter 9 is enabled, sets the Actuator operating speed in the open direction.
This value is percentage of full speed.
1% – Minimum Speed
100% – Full Speed (default)
4.5.1.9 Parameter 11 – Set Speed Control Begin: Open Direction
Attribute 117
Size 1 byte
Read/Write RW
Range 0-100% (0-255)
Description If Parameter 9 is enabled, sets the position where speed limiting begins in the
open direction.
0% – Fully Closed Position (default)
100% – Fully Open Position
4.5.1.10 Parameter 12 – Set Speed Control End: Open Direction
Attribute 118
Size 1 byte
Read/Write RW
Range 0-100% (0-255)
Description If Parameter 9 is enabled, sets the position where speed limiting ends in the
open direction.
0% – Fully Closed Position
100% – Fully Open Position (default)

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4.5.1.11 Parameter 13 – Set Motor Speed: Close Direction
Attribute 119
Size 1 byte
Read/Write RW
Range 1-100% (1-255)
Description If Parameter 9 is enabled, sets the Actuator operating speed in the close direction.
This value is percentage of full speed.
1% – Minimum Speed
100% – Full Speed (default)
4.5.1.12 Parameter 14 – Set Speed Control Begin: Close Direction
Attribute 120
Size 1 byte
Read/Write RW
Range 0-100% (0-255)
Description If Parameter 9 is enabled, sets the position where speed limiting begins in the
close direction.
0% – Fully Closed Position
100% – Fully Open Position (default)
4.5.1.13 Parameter 15 – Set Speed Control End: Close Direction
Attribute 121
Size 1 byte
Read/Write RW
Range 0-100% (0-255)
Description If Parameter 9 is enabled, sets the position where speed limiting ends in the
close direction.
0% – Fully Closed Position (default)
100% – Fully Open Position