Rockwell Automation ControlLogix 1756-HYD02 User manual

User Manual
Catalog Numbers
1756-HYD02
ControlLogix Hydraulic
Servo Module

Important User Information
Solid state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the
Application, Installation and Maintenance of Solid State Controls (publication SGI-1.1 available from your local Rockwell Automation sales
office or online at http://literature.rockwellautomation.com) describes some important differences between solid state equipment and hard-
wired electromechanical devices. Because of this difference, and also because of the wide variety of uses for solid state equipment, all
persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable.
In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use or
application of this equipment.
The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements
associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or liability for actual use based on the
examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software described in
this manual.
Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation, Inc., is prohibited.
Throughout this manual, when necessary, we use notes to make you aware of safety considerations.
Allen-Bradley, Rockwell Automation, and TechConnect are trademarks of Rockwell Automation, Inc.
Trademarks not belonging to Rockwell Automation are property of their respective companies.
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.
IMPORTANT Identifies information that is critical for successful application and understanding of the product.
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
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.

3Publication 1756-UM525A-EN-P - June 2003 3
Table of Contents
Preface Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Who Should Use This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
The Purpose of This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Chapter 1
What is the 1756-HYD02 Module?
What the Module Does . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Using A ControlLogix Hydraulic Servo Module in the
ControlLogix System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Physical Features of the ControlLogix Hydraulic Servo Module . 10
Certifying Agency Approvals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Full Class I Division 2 Compliance. . . . . . . . . . . . . . . . . . . . . . . . . 11
Preventing Electrostatic Discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Removal and Insertion Under Power . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Chapter Summary and What’s Next . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Chapter 2
Installing the 1756-HYD02 Module
What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Note the Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Installing the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Keying the Removable
Terminal Block. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Connecting Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Two Types of RTBs (each RTB comes with housing) . . . . . . . . . 16
Wiring the 1756-HYD02 Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Wiring Registration Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Wiring the Home Limit Switch Input. . . . . . . . . . . . . . . . . . . . . . . 20
Wiring the OK Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Connecting LDTs to Your Hydraulic Module . . . . . . . . . . . . . . . . 21
Assembling The Removable Terminal Block and the Housing. . . . . . 23
Choosing the Extended-Depth Housing . . . . . . . . . . . . . . . . . . . . . . . 24
Suggestions for Using the Extended-Depth Housing . . . . . . . . . . 25
Cabinet Size Considerations With the
Extended-Depth Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Installing the Removable Terminal Block. . . . . . . . . . . . . . . . . . . . . . . 26
Removing the Removable Terminal Block . . . . . . . . . . . . . . . . . . . . . . 28
Removing the Module from the Chassis. . . . . . . . . . . . . . . . . . . . . . . . 29
Chapter Summary and What’s Next . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

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Table of Contents
Chapter 3
Configuring the 1756-HYD02
Module
Using RSLogix 5000 Configuration Software. . . . . . . . . . . . . . . . . . . . 31
Overview of the Configuration Process . . . . . . . . . . . . . . . . . . . . . . . . 32
Creating a New Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Configuring General Module Features . . . . . . . . . . . . . . . . . . . . . . . . . 35
Configuring the Axes Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Downloading New Configuration Data . . . . . . . . . . . . . . . . . . . . . . . . 37
Editing Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Reconfiguring Module Parameters in Run Mode . . . . . . . . . . . . . . . . . 39
Reconfiguring Module Parameters in Program Mode . . . . . . . . . . . . . 39
Chapter Summary and What’s Next . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Chapter 4
Using the 1756-HYD02 Module
Features
What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Using General Module Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Servo Update Period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Module Fault Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Fully Software Configurable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Electronic Keying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Using Axes Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
General Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Motion Planner Tab. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Units Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Servo Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Feedback Tab. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Conversion Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Homing Tab. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Hookup Tab. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Tune Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Dynamics Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Gains Tab. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Output Tab. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Limits Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Offset Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Fault Actions Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Tag Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Chapter Summary and What’s Next . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Publication 1756-UM525A-EN-P - June 2003 5
Table of Contents
Chapter 5
Troubleshooting the 1756-HYD02
Module
What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Using the Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Using the OK Indicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Using the FDBK Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Using the DRIVE Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Using RSLogix 5000 to Troubleshoot the Module. . . . . . . . . . . . . . . . 81
Warning Signal in Controller Organizer . . . . . . . . . . . . . . . . . . . . . 81
Fault Message in Status Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Notification in Axis Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Chapter Summary and What’s Next . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Appendix A
Specifications
Glossary
Index

6Publication 1756-UM525A-EN-P - June 2003
Table of Contents

7Publication 1756-UM525A-EN-P - June 2003 7
Preface
Using This Manual
This preface describes how to use this manual.
Who Should Use This
Manual
To effectively use this manual, you should be able to program and operate the
Rockwell Automation ControlLogix controllers to efficiently use your
ControlLogix Hydraulic Servo module. In this manual, we also refer to the
module as the 1756-HYD02 module.
If you need more information about programming and operating the
ControlLogix controllers, refer to the Logix5000 Controller User Manual,
publication number
1756-UM001 .
The Purpose of This Manual
This manual describes how to set up, configure and troubleshoot your
1756-HYD02 module. The following table lists describes each section in this
manual:
If you are looking for this information: See this section
Description of the module and what it does. Chapter 1
What is the 1756-HYD02 Module?
Step by step description of how to install and
wire the module. Chapter 2
Installing the 1756-HYD02 Module
Description of how to use RSLogix 5000
programming software to configure the
module.
Chapter 3
Configuring the 1756-HYD02 Module
Complete listing of the module’s features,
including the general module features and
features that specifically affect the data
coming from axes connected to either of the
module’s channels.
Chapter 4
Using the 1756-HYD02 Module Features
Description of how to troubleshoot any
problems with the module, including the use
of status indicators on the module and
software fault messages in RSLogix 5000.
Chapter 5
Troubleshooting the 1756-HYD02 Module
Specifications for the module. Appendix A
Specifications

8Publication 1756-UM525A-EN-P - June 2003
Preface Preface
Related Documentation
The following table lists related ControlLogix documentation:
To view or order the publications listed above, visit:
•http://literature.rockwellautomation.com
Publication
Number Publication Description
1756-IN580 ControlLogix Hydraulic Servo Module
Installation Instructions Provides instructions for installing, wiring, and troubleshooting your 1756-HYD02 module.
1756-IN080 ControlLogix Chassis Installation Instructions Provides instructions for installing a
ControlLogix chassis
1756-IN613 ControlLogix Power Supply Installation
Instructions Provides instructions for installing a ControlLogix power supply
1756-IN573 ControlLogix Redundant Power Supply
Installation Instructions Provides instructions for installing a ControlLogix redundant power supply
1756-IN574 ControlLogix Redundant Power Supply Chassis
Adapter Module Installation Instructions Provides instructions for installing a ControlLogix redundant power supply chassis
adapter module
1756-UM001 Logix5000 Controller User Manual Provides information for using your Logix5000
controller and its components.
1756-RM003 Logix5000 Controller Instruction Set Reference
Manual Provides descriptions of all the instructions supported by the RSLogix 5000 programming
software.

9Publication 1756-UM525A-EN-P - June 2003 9
Chapter 1
What is the 1756-HYD02 Module?
This chapter describes the ControlLogix Hydraulic Servo module.
What the Module Does
THe 1756-HYD02 module is typically used for accurate positioning and
control of a hydraulic cylinder. The module can be wired to a linear
displacement transducer (LDT) for feedback and a proportional or servo valve
for control of a hydraulic axis and connects to a hydraulic system to close a
high-speed position loop. Each Logix controller can support up to 16
1756-HYD02 modules. Each 1756-HYD02 module can control up to two
axes.
The 1756-HYD02 module monitors the position feedback via the linear
displacement transducer (LDT) input and generates an analog command
reference for the valve to make sure that the actuator (cylinder) follows the
profile. The 1756-HYD02 module closes the position loop at a programmed
rate using position feedback as the input and produces a +/-10V analog
output velocity command.
The module is programmed with motion instructions in the RSLogix 5000
programming software and must be in the same chassis as the ControlLogix
controller that controls the module. If you distribute motion control that uses
the 1756-HYD02 module across different locations, place a ControlLogix
controller in each chassis that has a 1756-HYD02 module. In this case, use a
1756-SYNCH module to synchronize motion between the multiple chassis.
Transducers connected to the 1756-HYD02 must accept external
interrogation signals. In this case, the transducer generates its position
information each time that it receives an interrogation pulse. Do not use
transducers configured for internal interrogation because they will not be
properly synchronized to the module.
For more information about: See page:
What the Module Does 9
Using A ControlLogix Hydraulic Servo Module in
the ControlLogix System 10
Certifying Agency Approvals 11
Preventing Electrostatic Discharge 12
Removal and Insertion Under Power 12

10 Publication 1756-UM525A-EN-P - June 2003
Chapter 1 What is the 1756-HYD02 Module?
Using A ControlLogix
Hydraulic Servo Module in
the ControlLogix System
A ControlLogix Hydraulic Servo module mounts in a ControlLogix chassis
and uses a removable terminal block (RTB) or interface module (IFM) to
connect all field-side wiring.
Before you install and use your module you should have already:
• installed and grounded a ControlLogix chassis and power supply. To
install these products, refer to the publications listed in on page 7.
• ordered and received an RTB or IFM and its components for your
application.
Physical Features of the ControlLogix Hydraulic Servo Module
IMPORTANT RTBs and IFMs are not included with your module purchase.
You must order them separately. For more information, contact
your local distributor or Rockwell Automation representative.
ControlLogix
Backplane
Connector
Removable
Terminal
Block
Indicators
Locking tab
Slots for
keying the
RTB
Connector
pins
Top and
bottom
guides
41623

Publication 1756-UM525A-EN-P - June 2003 11
What is the 1756-HYD02 Module? Chapter 1
The table below lists the physical features on the ControlLogix Hydraulic
Servo module.
Certifying Agency
Approvals
If the ControlLogix Hydraulic Servo module has obtained any agency
approvals, for example, CE/CSA/UL, the module label is marked as such.
Full Class I Division 2 Compliance
The ControlLogix Hydraulic Servo module maintains CSA Class I Division 2
system certification. The module can be placed in an environment other than
only 100% hazard free.
ControlLogix Hydraulic Servo Module Physical Features
Feature: Description:
ControlLogix backplane
connector The interface to the ControlLogix system; it connects the module to the backplane.
Connectors pins Input/output and grounding connections are made to the
module through these pins with the use of an RTB.
Locking tab The locking tab anchors the RTB on the module, maintaining
wiring connections.
Slots for keying Slots mechanically key the RTB to prevent you from making
the wrong wire connections to your module.
Status indicators Indicators display the status of communication, module
health and presence of input/output devices. Use these
indicators to help in troubleshooting.
Top and bottom guides Guides provide assistance in seating the RTB onto the
module.
IMPORTANT The 1756-HYD02 module should not be pulled under power, nor
should a powered RTB be removed, in a Class I Division 2
environment.

12 Publication 1756-UM525A-EN-P - June 2003
Chapter 1 What is the 1756-HYD02 Module?
Preventing Electrostatic
Discharge
The 1756-HYD02 module is sensitive to electrostatic discharge.
Removal and Insertion
Under Power
You can install or remove the module while chassis power is applied if you
observe the following precautions.
Repeated electrical arcing causes excessive wear to contacts on both the
module and its mating connector. Worn contacts may create electrical
resistance that can affect module operation.
We do not recommend removing and inserting the 1756-HYD02 module
while under power if the servo loop is closed. Make sure the servo loop is
open, that is, flashing green feedback indicator, before removing or inserting
the module under power.
Chapter Summary and
What’s Next
In this chapter, you read a description of the 1756-HYD02 module. Chapter 2
describes
Installing the 1756-HYD02 Module .
ATTENTION This equipment is sensitive to electrostatic discharge, which
can cause internal damage and affect normal operation. Follow
these guidelines when you handle this equipment:
•Touch a grounded object to discharge potential static.
•Wear an approved grounding wriststrap.
•Do not touch connectors or pins on component boards.
•Do not touch circuit components inside the equipment.
•If available, use a static-safe workstation.
•When not in use, store the equipment in appropriate static-safe
packaging.
WARNING When you insert or remove the module while backplane power
is on, an electrical arc can occur. This could cause an explosion
in hazardous location installations. Be sure that power is
removed or the area is nonhazardous before proceeding.
However, as stated on the previous page, the 1756-HYD02
module should not be pulled under power, nor should a powered
RTB be removed, in a Class I Division 2 environment.

13Publication 1756-UM525A-EN-P - June 2003 13
Chapter 2
Installing the 1756-HYD02 Module
What This Chapter Contains
This chapter describes how to install the 1756-HYD02 module.
The 1756-HYD02 module mounts in a ControlLogix chassis and uses a
removable terminal block (RTB) to connect all field-side wiring.
Before you install your module, make sure you:
• install and ground a ControlLogix chassis and power supply.
• order and receive an RTB, and its components, for your application.
For more information on all the ControlLogix chassis and power supplies, see
the ControlLogix Selection Guide, publication
1756-SG001 .
Note the Power
Requirements
This module receives power from the 1756 chassis power supply and requires
two sources of power from the backplane:
• 700mA at 5.1V
• 2.5 mA at 24V
Add this current to the requirements of all other modules in this chassis to
prevent overloading the backplane power supply.
For information about: See page:
Installing the Module 14
Keying the Removable Terminal Block 15
Connecting Wiring 16
Assembling The Removable Terminal Block and
the Housing 23
Installing the Removable Terminal Block 26
Removing the Removable Terminal Block 28
Removing the Module from the Chassis 29

14 Publication 1756-UM525A-EN-P - June 2003
Chapter 2 Installing the 1756-HYD02 Module
Installing the Module
You can install or remove the module while chassis power is applied.
1. Align circuit board with top and bottom chassis guides.
2. Slide module into chassis until module tabs ‘click’.
ATTENTION The module is designed to support Removal and Insertion Under
Power (RIUP). However, when you remove or insert an RTB with
field-side power applied, unintended machine motion or
loss of process control can occur. Exercise extreme caution
when using this feature.
20861-M
Printed Circuit Board
20862-M
Locking Tab

Publication 1756-UM525A-EN-P - June 2003 15
Installing the 1756-HYD02 Module Chapter 2
Keying the Removable
Terminal Block
Key the RTB to prevent inadvertently connecting the incorrect RTB to your
module. When the RTB mounts onto the module, keyed positions match up.
For example, if you place a U-shaped keying band in position #4 on the
module, you cannot place a wedge-shaped tab in #4 on the RTB or your RTB
will not mount on the module.
Use a unique keying pattern for each slot in the chassis.
1. Insert the U-shaped band with the long side near the terminals.
2. Push the band onto the module until it snaps in place.
3. Key the RTB in positions that correspond to unkeyed module positions.
Insert the wedge-shaped tab on the RTB with the rounded edge first.
Push the tab onto the RTB until it stops.
IMPORTANT When keying your RTB and module, you must begin with a
wedge-shaped tab in position #6 or #7.
20850-M
U-shaped
Keying Band
20851–M
12
0
34567
Module side of RTB
Wedge–shaped
Keying Tab

16 Publication 1756-UM525A-EN-P - June 2003
Chapter 2 Installing the 1756-HYD02 Module
Connecting Wiring
This module uses an RTB or a Bulletin 1492 Interface Module (IFM)(1) to
connect all field-side wiring. Use an extended-depth cover (1756-TBE) for
applications with heavy gauge wiring or requiring additional routing space. The
maximum wire gauge that can be used with the 1756-HYD02 module is #14
AWG (2.08 sq. mm) stranded.
If you are using an RTB to connect wiring to you module, follow the directions
beginning below.
An IFM has been prewired before you received it. If you are using an IFM to
connect wiring to the module, consult the documentation that came with it to
connect wiring, skip this section and move to page 23.
Two Types of RTBs (each RTB comes with housing)
• Cage Clamp - Catalog number 1756-TBCH
• Spring Clamp - Catalog number 1756-TBSH or TBS6H
Cage Clamp
1. Insert the wire into the terminal.
2. Turn the screw clockwise to close the terminal on the wire.
(1) The Bulletin 1492 IFM may not be used in any application that requires agency certification of the ControlLogix
system. Use of the IFM violates the UL, CSA and FM certifications of this product.
20859-M
Strain relief area

Publication 1756-UM525A-EN-P - June 2003 17
Installing the 1756-HYD02 Module Chapter 2
Spring Clamp
1. Insert the screwdriver into the outer hole of the RTB.
2. Insert the wire into the open terminal and remove the screwdriver.
Recommendations for Wiring Your RTB
TIP Consider the following when wiring your RTB:
•Begin wiring the RTB at the bottom terminals and move up.
•Use a tie to secure the wires in the strain relief area of the RTB.
•The jumper bar part number is 97739201. Contact your local
Rockwell Automation sales representative to order additional
jumper bars, if necessary.
•Order and use an extended-depth housing, that is cat.
no.1756-TBE, for applications that require heavy gauge wiring. For
more information, see page 24.
20860-M
Strain relief area

18 Publication 1756-UM525A-EN-P - June 2003
Chapter 2 Installing the 1756-HYD02 Module
Wiring the
1756-HYD02 Module
Use the wiring example in Figure to wire to your module.
+OUT-0
-OUT-0
+ENABLE-0
-ENABLE-0
DRVFLT-0
CHASSIS
IN_COM
HOME-0
REG24V-0
REG5V-0
+OK
CHASSIS
+INT-0
-INT-0
+RET-0
-RET-0
LDT CMN
CHASSIS
+OUT-1
-OUT-1
+ENABLE-1
-ENABLE-1
DRVFLT-1
CHASSIS
IN_COM
HOME-1
REG24V-1
REG5V-1
-OK
CHASSIS
+INT-1
-INT-1
+RET-1
-RET-1
LDT CMN
CHASSIS
General cable C0720 To valve driver/amplifier
To home
limit switch
To E-stop relay coil
To hydraulic control unit
or
To valve or pump
To LDT
To registration
sensor
1. This is a general wiring example illustrating Axis 1 wiring only. Other
configurations are possible with Axis wiring identical to Axis 1.
2. Make sure that any transducer connected to the 1756-HYD02 module
uses an external interrogation signal.
3. Do not exceed the specified isolation voltage between power sources.
NOTES:
43394
General cable C0721
General cable C0720
General cable C0720
General cable C0722
General cable C0720

Publication 1756-UM525A-EN-P - June 2003 19
Installing the 1756-HYD02 Module Chapter 2
Wiring Registration Sensors
The registration inputs to the servo module can support 24V or 5V
registration sensors. These inputs should be wired to receive source current
from the sensor. Current sinking sensor configurations are not allowed
because the registration input common (IN_ COM) is shared with the other
24V servo module inputs.
- 24V Registration Sensor
- 5V Registration Sensor
From 1756-HYD02 General cable
C0720 REG24V
IN_COM
24V dc
Field Power
Supply
+24 Volt
Registration
Sensor
Supply
–
43395
Output
Common
From 1756-HYD02 REG5V
IN_COM
5V dc
Field Power
Supply
+5 Volt
Registration
Sensor
Supply
–
43395
Output
Common
General cable
C0720

20 Publication 1756-UM525A-EN-P - June 2003
Chapter 2 Installing the 1756-HYD02 Module
Wiring the Home Limit Switch Input
The home limit switch inputs to the servo module are designed for 24V
nominal operation. These inputs should be wired for current sourcing
operation.
Wiring the OK Contacts
A set of isolated solid- state OK relay contacts is provided for optional
interface to an E- stop string, which controls power to the associated pumps.
The OK contacts are rated to drive an external 24V pilot relay, for example,
Allen-Bradley 700-HA32Z24, whose contacts can be incorporated into the
E-Stop string.
From 1756-HYD02 HOME
IN_COM
+–
43396
24V dc
Field Power
Supply
General cable
C0720
From 1756-HYD02 +OK
-OK
24V dc
Field Power
Supply
+–
43397
OK Pilot
Relay
43398
OK Pilot
Relay
Contacts Start Stop
CR1
CR1
CR1
M1
24V AC/DC
or 120VAC
typical
General cable
C0720