Sprecher+Schuh CEP7 Second Generation PROFIBUS Module User Manual

The CEP7 Second Generation PROFIBUS Module connects a CEP7 Second Generation Overload Relay to a PROFIBUS network. The module can monitor motor current in real time, report this current back through the network, and provide warnings and trip commands, as configured. This unit can be used to monitor motor current for overload, underload, and stall conditions.

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USER MANUAL

CEP7

Second Generation PROFIBUS

Module

CATALOG NUMBER CEP7-EPRB

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://www.ab.com/manuals/gi) 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.

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

ATTENTION

Identifies information that is critical for successful application and understanding of the product.

Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss. Attentions help you:

• identify a hazard

• avoid a hazard

• recognize the consequence

SHOCK HAZARD

Labels may be located on or inside the equipment (e.g., drive or motor) to alert people that dangerous voltage may be present.

BURN HAZARD

Labels may be located on or inside the equipment (e.g., drive or motor) to alert people that surfaces may be dangerous temperatures.

Chapter 1 -

Installation and Wiring

Chapter 2 -

Protection Functions

Chapter 3 -

PROFIBUS Configuration

Table of Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Trip Status / Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Trip Resetting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Trip and Warning Enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Overload and Phase Loss Protection . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Overload Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Jam Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Jam Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Jam Warning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Underload Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Underload Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Communication Fault Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Comm Fault Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Communication Idle Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Comm Idle Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Acyclic Parameter Access (DP-V1). . . . . . . . . . . . . . . . . . . . . . . . 3-1

Cyclic Parameter Access (DP-V0). . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Initial Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Control- and Status Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Parameter Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Program Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Resetting to the Factory Default Values. . . . . . . . . . . . . . . . . . . . 3-6

Parameter Group Listing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Monitor Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Advanced Setup Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Reset/Lock Group. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

I/O Setup Group. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Trip History Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

PROFIBUS Setup Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18 iii Publication CEP7-UM010A-EN-P – January 2008

Chapter 4 -

Troubleshooting

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

PROFIBUS Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Power-Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Run Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Configuration Error Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Fatal Error Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

PROFIBUS Troubleshooting Procedures . . . . . . . . . . . . . . . . . . . . . 4-4

Network Status LED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

DP-V1 Error Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Input and Output Troubleshooting Procedures. . . . . . . . . . . . . . . . . 4-6

Trip and Warning Troubleshooting Procedures. . . . . . . . . . . . . . . . . 4-8

Appendix A - Specifications

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Appendix B -

PROFIBUS Information

Structure of the "Set Prm Data"-telegram . . . . . . . . . . . . . . . . . . . . . B-2

Electronic Data Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3

Set Slave Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3

Supported Baud Rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3

PROIFIBUS Identity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4

Identification and Maintenance (I&M) . . . . . . . . . . . . . . . . . . . . . B-4

Publication CEP7-UM010A-EN-P – January 2008

Introduction

Chapter

Installation and Wiring

The purpose of this chapter is to provide the necessary instructions to successfully install a

CEP7-EPRB PROFIBUS Module to an CEP7 Second Generation Overload Relay and properly connect to a PROFIBUS network.

ATTENTION

To prevent electrical shock, disconnect from power source before installing or servicing. Install in suitable enclosure. Keep free from contaminants.

ATTENTION

The side mount module contains ESD (electrostatic discharge) sensitive parts and assemblies. Static control precautions are required when installing, testing, servicing, or repairing this assembly. Component damage may result if ESD control procedures are not followed. If you are not familiar with static control procedures, refer to Rockwell

Automation publication 8000-4.5.2, “Guarding Against Electrostatic

Damage”, or any other applicable ESD protection handbook.

ATTENTION

The purpose of this document is to serve as a guide for proper installation. The National Electrical Code and any other governing regional or local code will take precedence. Rockwell Automation cannot assume responsibility for the compliance or proper installation of the side mount module or associated equipment. A hazard of personal injury and/or equipment damage exists if codes are ignored during installation.

ATTENTION

An incorrectly applied or installed side mount module can result in damage to the components or reduction in product life. Wiring or application errors such as supplying incorrect or inadequate supply voltage, or operating/storing in excessive ambient temperatures may result in malfunction of the product.

ATTENTION

Only personnel familiar with the side mount module and associated machinery should plan to install, set up, and maintain the system. Failure to comply may result in personal injury and/or equipment damage.

ATTENTION

This is a Class A product. In a domestic environment, this product may cause radio interference, in which case, the user may be required to take adequate measures.

Publication CEP7-UM010A-EN-P – January 2008

1-2 Installation and Wiring

Features

Figure 1.1 Features

PROFIBUS Connector

Installation

Figure 1.2 Installation [1]

Network Status LED

Power Supply Connector

I/O Connector

Figure 1.3 Installation [2]

Publication CEP7-UM010A-EN-P – January 2008

0.6mm X 3.5mm Blade

(.02 in X .14 in Blade)

0.5 - 0.6 N .m

(4.4 - 5.3 lb-in)

#2 Driver

0.7 - 1.1 N .m

(6 - 10 lb-in)

Figure 1.4 Installation [3]

7mm

(.28 in)

Wiring

Installation and Wiring 1-3

Table 1.1 Wire and Size Torque Specifications

Figure 1.5 Wiring Diagram

5 1

9 6

Housing

B-Line

RTS

GND BUS

+5V BUS OUT

A-Line

SHIELD

A2 ( -)

A1 (+)

(20.4 - 26.4 VDC)

SSV

IN2

IN1

OUTA

(B300)

24…12 AWG

24…16 AWG

5 lb.-in

0.2…2.5 mm

0.25…1 mm

0.55 N•m

0.2…2.5 mm

0.2…1 mm

0.55 N•m

Publication CEP7-UM010A-EN-P – January 2008

1-4 Installation and Wiring

Dimensions

J H

Figure 1.6 Dimension Diagram

Table 1.2 Dimension Specifications

Contactor Cat. No.

CEP7

Second

Gen.

Cat. No.

CA7-9, -12, -16, -23 CEP7-EE_

CA7-30, -37

CA7-43

CEP7-EE_

D mm

(in) mm

(in)

CA7-60, -72, -85 CEP7-EE_

E mm

(in)

(2.64)

71.5

(2.82)

(3.70)

B C

148

(5.83)

148

(5.83)

148

(5.83)

191.6

(7.54)

85.2

(3.35)

101.2

(3.98)

101.2

(3.98)

120.4

(4.74)

D E

24.5

(.96)

24.5

(.96)

24.5

(.96)

(1.14)

13.9

(.55)

13.9

(.55)

18.4

(.74)

23.8

(.94)

F G H J K L

(1.38)

(1.77)

(2.16)

(2.36)

100

(3.94)

86.5

(3.40)

104

(4.09)

104

(4.09)

126

(4.94)

(.08)

4.5

(.17)

4.5

(.17)

4.5

(.17)

5.4

(.21)

(.86)

Publication CEP7-UM010A-EN-P – January 2008

Chapter

Protection Functions

Introduction

Trip Status / Identification

Trip Resetting

Trip and Warning Enable

The purpose of this chapter is to provide detailed information regarding the protective trip and warning functions that the CEP7-EPRB PROFIBUS Module adds to the CEP7 Second

Generation Overload Relay. In this chapter, you will find considerable mention given to parameters as they relate to these functions. For complete descriptions of the programming parameters, refer to Chapter 3 - Profibus Configuration.

The PROFIBUS Module determines trip status and identification through monitoring of reference signals inside the CEP7 Second Generation Overload Relay. On power-up, it assumes that the CEP7 Second Generation Overload Relay is in a non-tripped condition. For definitive feedback on trip status of the CEP7 Second Generation Overload Relay, one of the PROFIBUS module inputs may be wired to the N.O. auxiliary contact (terminals 97 and 98) of the CEP7

Second Generation Overload Relay. Parameters 28 and 29 are used to configure the assignment of the inputs. For this function, use the “OL Contact” configuration.

The following options are available for resetting a tripped CEP7 Second Generation Overload

Relay with a PROFIBUS module:

• Blue mechanical reset button located on the front of the CEP7 Second Generation

Overload Relay

• Setting Parameter 19, Trip Reset, to “Reset”

• Setting the "Trip Reset"-bit bit in the Control Register

• Using a push button (N.O. contact configuration) wired to one of the PROFIBUS

Module inputs, programming the corresponding input assignment parameter (28 or 29) to “Trip Reset”

IMPORTANT

Setting parameter 11, Reset Mode, to “Automatic” does not result in other reset commands being ignored.

Parameter 8, Trip Enable, allows the installer to enable or disable the jam trip protective function.

Parameter 9, Warning Enable, allows the installer to enable or disable the overload, jam and underload warning protective functions.

ATTENTION

The Trip Enable settings should not be altered during machine operation, as unexpected behavior could occur. This may result in an unintended actuation of controlled industrial equipment, with the potential for machine damage or serious injury to personnel.

Overload and Phase Loss

Protection

Thermal overload and phase loss trip protection is provided exclusively by the CEP7 Second

Generation Overload Relay. The CEP7 Second Generation Overload Relay provides uninterrupted protection to the motor, even in the event of a PROFIBUS Module failure.

Publication CEP7-UM010A-EN-P – January 2008

2-2 Protection Functions

Jam Protection

Settings for FLA and trip class are found directly on the CEP7 Second Generation Overload

Relay.

IMPORTANT

The reset mode DIP switch adjustment is overridden by the PROFIBUS module parameter 11, OL Reset Mode, while the PROFIBUS module is powered.

Overload Warning

The PROFIBUS Module continuously monitors the CEP7 Second Generation Overload Relay's percentage of thermal utilization signal. Parameter 2,%Therm Utilized, provides this value.

Parameter 12, OL Warning Level, is used to adjust the setpoint to alert for an impending overload trip and is adjustable from 0…100% TCU.

The PROFIBUS Module will indicate an overload warning if all the following conditions are met:

• No warning currently exists

• Overload warning is enabled

• %Therm Utilized is equal to or greater than OL Warning Level

When the overload warning conditions are satisfied, the following will occur:

• Bit 0 in Parameter 4, Warning Status, will go to “1”

• Bit 1 of Parameter 5, Device Status, will go to “1”

IMPORTANT

%Therm Utilized will stabilize at a value of approximately 88% with the motor operating continuously at rated current.

Motor current greater than the motor's nameplate rating can indicate a high overload or stall condition, such as an overloaded conveyor or jammed gear. These conditions can result in overheating of the motor, and equipment damage. Rapid jam fault detection helps to minimize damage and loss of production.

By continuously monitoring the motor current level signal as a percentage of the CEP7 Second

Generation Overload Relay's dial FLA setting, the PROFIBUS module allows jam trip and warning capability.

Jam Trip

The following parameters are available for configuring the PROFIBUS Module's jam trip performance:

• Parameter 13, Jam Inhibit Time, allows the installer to inhibit a jam trip from occurring during the motor starting sequence. It is adjustable from 0…250 seconds.

• Parameter 14, Jam Trip Delay, allows the installer to define the time period a jam condition must be present before a trip occurs. It is adjustable from 0.5…25.0 seconds.

• Parameter 15, Jam Trip Level, allows the installer to define the current at which the CEP7

Second Generation Overload Relay will trip on a jam. It is user-adjustable from

150…600% of the FLA dial setting.

Publication CEP7-UM010A-EN-P – January 2008

Underload Protection

Protection Functions 2-3

The PROFIBUS Module will command the CEP7 Second Generation Overload Relay to trip if all the following conditions are met:

• No trip currently exists

• Jam Protection is enabled

• Jam Inhibit Time has expired

• The motor current is greater than the Jam Trip Level for a time period greater than the

Jam Trip Delay

When the conditions for a jam trip are satisfied, the following will occur:

• Bit 2 in Parameter 3, Trip Status, will go to “1”

• Bit 0 in Parameter 5, Device Status, will go to “1”

• The CEP7 Second Generation Overload Relay's trip relay contacts (95 and 96) will open

• Out A will be placed in their Protection Fault State (if so programmed)

IMPORTANT

The Protection Fault State of OUT A is defined by parameter 22

(OUTA Pr FltState) and parameter 23 (OUTA Pr FltValue).

IMPORTANT

The jam inhibit timer starts after the load current transitions from 0 A to

30% FLA. The PROFIBUS Module does not begin monitoring for a jam condition until the Jam Inhibit Time expires.

Jam Warning

Parameter 16, Jam Warn Level, allows the installer to define the current at which the PROFIBUS

Module will indicate a warning. It is user-adjustable from 100…600% FLA.

The PROFIBUS Module will indicate a Jam warning if:

• No warning currently exists

• Jam Warning is enabled

• Jam Inhibit Time has expired

• The motor current is equal to or greater than the Jam Warn Level

When the Jam Warning conditions are satisfied, the following will occur:

• Bit 2 in Parameter 4, Warning Status, will go to “1”

• Bit 1 in Parameter 5, Device Status, will go to “1”

IMPORTANT

The Jam Warning function does not include a time delay feature. Once the Jam Inhibit Time has expired, the Jam Warning indication is instantaneous.

Motor current less than a specific level may indicate a mechanical malfunction in the installation, such as a torn conveyor belt, damaged fan blade, broken shaft, or worn tool. Such conditions may not harm the motor, however, rapid detection may help to minimize equipment damage and loss of production.

Publication CEP7-UM010A-EN-P – January 2008

2-4 Protection Functions

Underload Warning

The following parameters are available for configuring the PROFIBUS Module's underload warning performance:

• Parameter 17, UL Inhibit Time, allows the installer to inhibit an underload indication from occurring during the motor starting sequence. It is adjustable from 0…250 seconds.

• Parameter 18, UL Warn Level, allows the installer to define the current at which the

PROFIBUS Module will indicate a warning. It is user-adjustable from 30…100% of the

FLA dial setting.

The PROFIBUS Module will immediately indicate an Underload warning if:

• No warning currently exists

• Underload Warning is enabled

• UL Inhibit Time has expired

• The motor current is less than the UL Warn Level

When the Underload Warning conditions are satisfied, the following will occur:

• Bit 3 in Parameter 4, Warning Status, will go to “1”

• Bit 1 of Parameter 5, Device Status, will go to “1”

IMPORTANT

The Underload Warning function does not include a time delay feature.

Once the UL Inhibit Time has expired, the Underload warning indication is instantaneous.

Communication Fault

Protection

A disruption of the communication link between the CEP7 Second Generation PROFIBUS

Module and a PROFIBUS network can result in the loss of application control and/or critical process diagnostic data. Rapid communication fault detection helps minimize potential damage due to uncontrolled or unmonitored applications.

Comm Fault Warning

The PROFIBUS Module will indicate a Comm Fault warning if:

• No warning currently exists

• Comm Fault Warning is enabled

• The PROFIBUS Module experiences a loss of communication

When the Comm Fault warning conditions are satisfied, the following will occur:

• The Network Status LED will go out

• Bit 5 in Parameter 4, Warning Status, will go to “1”

• Bit 1 of Parameter 5, Device Status, will go to “1”

IMPORTANT

The Comm Fault State of OUT A is defined by Parameter 24 (OUTA Pb

FltState) and parameter 25 (OUTA Pb FltValue).

Communication Idle Protection

When a programmable controller is placed into the program mode, the execution of its ladder program is suspended, and any connected networks go to an idle state. If inadvertent, this can result in the loss of application control and/or critical process diagnostic data. Rapid

Publication CEP7-UM010A-EN-P – January 2008

Protection Functions 2-5 communication idle detection helps minimize the potential damage due to uncontrolled or unmonitored applications.

Comm Idle Warning

The PROFIBUS Module will indicate a Comm Idle warning if:

• No warning currently exists

• Comm Idle Warning is enabled

• The PROFIBUS module is in idle (clear) mode

When the Comm Idle warning conditions are satisfied, the following will occur:

• Bit 6 in Parameter 4, Warning Status, will go to “1”

• Bit 1 in Parameter 5, Device Status, will go to “1”

IMPORTANT

The Comm Idle State of OUT A is defined by Parameter 26 (OUTA Pb

IdlState) and parameter 27 (OUTA Pb IdlValue).

Publication CEP7-UM010A-EN-P – January 2008

2-6 Protection Functions

Publication CEP7-UM010A-EN-P – January 2008

Introduction

Chapter

PROFIBUS Configuration

The PROFIBUS Module supports DP-V0 and DP-V1 communications. It is commissioned for a PROFIBUS network using a GSD file which contains information about parameters, profiles,

I/O types, and sizes specific for this module. The GSD file for the CEP7-EPRB can be dowloaded from http://www.ab.com/networks/gsd/.

Acyclic Parameter Access (DP-V1)

The preferred way of accessing device parameters is by means of Acyclic (DP-V1) read- and write services. When accessed acyclically, parameters are addressed by their corresponding

Index (index equals parameter number). Note that due to technical reasons imposed by the

PROFIBUS networking system, it is required to map at least one byte of Cyclic I/O in either direction. Any parameter can be used for this purpose.

Note: The slot number is not significant (i.e. it’s ignored by the module)

IMPORTANT

Write requests towards writeable parameters will automatically cause the corresponding setting to be saved in non volatile memory. For consistency reasons, all parameters mapped as Cyclic I/O will be read-only when accessed acyclically.

IMPORTANT

Changes made to parameter values will take effect immediately even during a “running” status.

IMPORTANT

Parameter setting changes made in a PROFIBUS configuration tool do not take effect in the PROFIBUS Module until the installer applies or downloads the new settings to the device.

Cyclic Parameter Access (DP-V0)

All parameters can be accessed cyclically by adding the corresponding GSD-module to the network configuration. GSD-modules can be added (i.e. mapped as Cyclic I/O) as needed, in any order, with a few restrictions:

• At least one byte must be mapped as Cyclic I/O. This can either be device parameters - or - the Control- and Status Registers.

• It is not permitted to map the same parameter to the Cyclic I/O configuration more than once.

• Parameters mapped as Cyclic I/O cannot be written using Acyclic (DP-V1) services.

IMPORTANT

For technical reasons, writeable parameters mapped as Cyclic I/O will not be saved automatically in non volatile memory. To save such paramaters, a save operation must explicitly be triggered by means of a bit in the Control Register.

Publication CEP7-UM010A-EN-P – January 2008

3-2 PROFIBUS Configuration

IMPORTANT

All changes made to parameter values, saved or not, will take effect immediately even during Data Exchange.

Initial Data

During startup of the network, it is possible to load start-up values (loaded on each transition from offline to online) for all writable parameters by means of the User Prm Data. The

PROFIBUS Module will use these settings provided that "Parameter Initialization" (User Prm

Data byte #3) is set as "Enabled". Note that this will result in any previous settings stored in non volatile memory to be replaced.

Initial values supplied through the User Prm Data will only be used if all initial parameter values are valid. In case an illegal initial parameter value is specified, an out-of-range parameter error will be signalled to the PROFIBUS master.

The loading of initial data also includes the "Program Lock"-setting, which means that it is possible to specify a default configuration during startup, which will then be protected from write access during runtime.

IMPORTANT

PROFIBUS master.

IMPORTANT

Special care has to be taken for parameters mapped as Cyclic I/O, since their value may be overwritten during the first bus cycle. This can be prevented using parameter 20 (Program Lock), however as soon as the

Program Lock is disabled, the value of these parameters will be replaced by the corresponding I/O data.

Control- and Status Registers

A special GSD-module (labelled "193-EPRB") is used to house the Control- and Status

Registers. These registers controls- and reflects the overall status of the module respectively.

Control Register

The structure controls various aspects of the module as follows:

Table 3.1 Control Register contents

Bit Function:

7 6 5 4 3 2 1 0

X X X

OutA

Trip Reset

Save

Not Used

Publication CEP7-UM010A-EN-P – January 2008

PROFIBUS Configuration 3-3

• Bit 0; OutA – Control of the Output relay. The bit is flank triggered, i.e. a state transition from 0 to 1 or from 1 to 0 must be performed to change the state of the relay

• Bit 2; Trip Reset – Same functionality as parameter 19, Trip Reset. The bit is flank triggered, i.e. a state transition from 0 to 1 must be performed to trigger a trip reset.

• Bit 6; Save – Used to trigger a save (to non-volatile memory) of parameter values of parameters that are mapped as Cyclic I/O. The bit is flank triggered, i.e. a state transition from 0 to 1 must be performed to trigger a save operation.

Status Register

The Status Register reflects the overall status of the module as follows:

Table 3.2 Status Register contents

Bit Function:

7 6 5 4 3 2 1 0

Trip

Warning

OutA Stat

Not Used

Input 1

Input 2

Save Ready

Motor Curr.

• Bit 0

Trip – Same functionality as bit 0 in parameter 5, Device Status.

• Bit 1

Warning – Same functionality as bit 1 in parameter 5, Device Status.

• Bit 2

OutA Stat – Same functionality as bit 2 in parameter 5, Device Status.

• Bit 4

Input 1 – Same functionality as bit 3 in parameter 5, Device Status.

• Bit 5

Input 2 – Same functionality as bit 4 in parameter 5, Device Status.

• Bit 6

Save Ready – Used to indicate that a save of parameter values of parameters mapped as

Cyclic I/O has been performed. The bit can be cleared again by clearing the "Save"-bit in the Control Register.

• Bit 7

Motor Current – Same functionality as bit 5 in parameter 5, Device Status.

Publication CEP7-UM010A-EN-P – January 2008

3-4 PROFIBUS Configuration

Parameter Programming Program Lock

Parameter 20, Program Lock, provides a degree of security from having parameter settings unintentionally altered when programmed to the “locked” setting.

If enabled, all parameters except Program Lock (20) are protected from acyclic (DP-V1) write access, and any changes made to the value of parameters mapped as Cyclic I/O will be ignored.

The "Program Lock" parameter will, if mapped as Cyclic I/O, be processed prior to processing other parameters mapped as Cyclic I/O. The loading of initial data is not affected by the

Program Lock.

Resetting to the Factory Default Values

Parameter 25, Set to Defaults, allows the installer to reset all parameter settings (including trip logs) to the factory default values.

IMPORTANT

Resetting to factory default values also resets the node address of the

PROFIBUS module to its default value of 126.

Parameter Group Listing

The CEP7-EPRB PROFIBUS Module contains six parameter groups:

Table 3.3 Parameter Groups

Monitor parameters

1 Average %FLA

2%Therm Utilized

3 Trip Status

4 Warning Status

5 Device Status

6 Firmware Revision

7 Serial Number

Advanced Setup

8 Trip Enable

9 Warning Enable

10 Single/Three Ph

11 OL Reset Mode

12 OL Warning Level

13 Jam Inhibit Time

14 Jam Trip Delay

15 Jam Trip Level

16 Jam Warn Level

17 UL Inhibit Time

18 UL Warn Level

Reset/Lock

19 Trip Reset

20 Program Lock

21 Set to Defaults

I/O Setup

22 OutA Pr FltState

23 OutA Pr FltValue

24 OutA Pb FltState

25 OutA Pb FltValue

26 OutA Pb IdlState

27 OutA Pb IdlValue

28 IN1 Assignment

29 IN2 Assignment

Trip History

30 Trip Log 0

31 Trip Log 1

32 Trip Log 2

33 Trip Log 3

34 Trip Log 4

PROFIBUS Setup

35 SSA Node Address

Publication CEP7-UM010A-EN-P – January 2008

PROFIBUS Configuration 3-5

Monitor Group

Average %FLA

This parameter reports the average motor current. The value is reported as a percentage of motor rated current (dial setting on the CEP7 Second Generation Overload Relay), and is reported in increments of 5.

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

% Therm Utilized

This parameter reports the percent thermal utilization of the connected motor.

Trip Status

This parameter provides trip identification.

1 = Trip

0 = No Trip

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

15 14 13 12

X X X X

11 10

X X

9 8

Bit

7 6 5 4 3 2

X X

X X X X X

Warning Status

This parameter provides warning identification

1 = Warning

0 = No Warning

1 0

Function:

Overload

Phase Loss

Jam

Not Used

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

15 14 13 12 11 10 9 8

Bit

7 6 5 4 3 2

Function:

1 0

Overload

Not Used

Jam

Read

2 bytes

Monitor

—

None

Read

2 bytes

Monitor

—

None

Read

1 byte

Monitor

100

None

Read

2 bytes

Monitor

%FLA

1275

None

Publication CEP7-UM010A-EN-P – January 2008

3-6 PROFIBUS Configuration

Bit

7 6 5 4 3

2 1 0

Function:

15 14 13 12

X X X X

11 10

X X

Device Status

This parameter provides status information related to the CEP7

Second Generation Overload Relay and the PROFIBUS Module.

1 = On or Present

0 = Off or Not Present

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

Bit

7 6 5 4 3 2 1 0

Function:

X X X

Trip

Warning

Out A

In 1

In 2

Motor Current

Not Used

Underload

Not Used

Comm Fault

Comm Idle

Nonvolatile Memory Fault

Not Used

Read

2 bytes

Monitor

—

None

Firmware Revision

This parameter reports the firmware revision of the PROFIBUS

Module.

Format:

0x0107 equals version 1.07

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

Serial Number

This parameter reports the serial number assigned during production of the PROFIBUS Module.

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

Read

2 bytes

Monitor

—

65535

None

Read

4 bytes

Monitor

—

0xFFFFFFFF

None

Publication CEP7-UM010A-EN-P – January 2008

PROFIBUS Configuration 3-7

Advanced Setup Group

Trip Enable

This parameter allows the installer to enable or disable the Jam Trip function

1 = Enabled

0 = Disabled

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

Read/Write

2 bytes

Advanced Setup

—

0000000000000000

0000000000000100

0000000000000000

15 14 13 12

X X X X

11 10

X X

Bit

7 6 5 4 3 2

X X X X X

Warning Enable

This parameter allows the installer to enable or disable the warning functions separately. All warning functions are disabled from the factory.

1 = Enabled

0 = Disabled

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

Function:

Not Used

Jam

Not Used

Read/Write

2 bytes

Advanced Setup

—

0000000000000000

0000000001101101

0000000000000000

15 14 13 12

X X X X

11 10

X X

Bit

7 6

Function:

Single/Three Ph

This parameter configures the PROFIBUS Module for single- or three-phase application. This parameter should be set to

“Single Phase" when CEP7S devices are employed.

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

Overload

Not Used

Jam

Underload

Not Used

Comm Fault

Comm Idle

Not Used

Read/Write

1 byte

Advanced Setup

—

0 = Single-Phase

1 = Three-Phase

Publication CEP7-UM010A-EN-P – January 2008

3-8 PROFIBUS Configuration

OL Reset Mode

This parameter defines whether a trip can be automatically or manually reset. This setting overrides the CEP7 Second

Generation DIP switch adjustment while the PROFIBUS

Module is powered. Note, however, that the CEP7 Second

Generation manual reset button, accessible at the front, is always active.

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

OL Warning Level

This parameter sets the overload warning level.

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

Jam Inhibit Time

This parameter defines the amount of time for which jam detection is inhibited during a motor starting sequence.

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

Jam Trip Delay

This parameter allows the installer to program a time duration for which a jam condition must exist at the programmed level prior to the device tripping.

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

Read/Write

1 byte

Advanced Setup

Seconds

250

Read/Write

1 byte

Advanced Setup

Seconds

0.5

25.0

5.0

Read/Write

1 byte

Advanced Setup

—

0 = Manual

1 = Automatic

Read/Write

1 byte

Advanced Setup

% Thermal Utilization

100

This parameter sets the jam trip level.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

Read/Write

2 bytes

Advanced Setup

% FLA

150

600

250

Publication CEP7-UM010A-EN-P – January 2008

PROFIBUS Configuration 3-9

Jam Warn Level

This parameter sets the jam warning level.

UL Inhibit Time

This parameter defines the amount of time for which underload detection is inhibited during a motor starting sequence.

UL Warn Level

This parameter sets the underload warning level.

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

Reset/Lock Group

Trip Reset

This parameter provides the user with the capability of resetting a trip over the PROFIBUS network. After a trip is reset, the parameter automatically returns to a “Ready” state.

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

Program Lock

This parameter prohibits the device parameters from being altered when set to “Locked”. It must be set to “Unlocked” to allow parameter modification.

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

Read/Write

1 byte

Reset/Lock

—

0 = Ready

1 = Reset Trip

Read/Set

1 byte

Reset/Lock

—

0 = Unlocked

1 = Locked

Read/Write

2 bytes

Advanced Setup

% FLA

100

600

150

Read/Write

1 byte

Advanced Setup

Seconds

250

Read/Write

1 byte

Advanced Setup

% FLA

100

Publication CEP7-UM010A-EN-P – January 2008

3-10 PROFIBUS Configuration

Set To Defaults

This parameter allows the user to reset the parameter settings to the factory default values. After parameter values have been reset to the factory default settings, the parameter automatically returns to a “Ready” state.

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

Read/Write

1 byte

Reset/Lock

—

0 = Ready

1 = Reset Defaults

I/O Setup Group

OutA Pr FltState

This parameter, in conjunction with parameter 23, defines how Output A will respond when a trip occurs.

When set to “1”, Output A will continue to operate as commanded via the network. When set to “0”, Output A will open or close as determined by the setting of parameter 23.

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

OutA Pr FltValue

This parameter determines the state that Output A assumes when a trip occurs and Parameter 22 is set to “0”.

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

Read/Write

1 byte

I/O Setup

—

0 = Go To FltValue (#23)

1 = Ignore Fault

Read/Write

1 byte

I/O Setup

—

0 = Open

1 = closed

OutA Pb FltState

This parameter, in conjunction with Parameter 25, defines how Output A will respond when a PROFIBUS network fault occurs. When set to “1”, Output A will hold the state prior to PROFIBUS fault occurrence. When set to “0”, Output A will open or close as determined by the setting of Parameter 25.

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

OutA Pb FltValue

This parameter determines the state that Output A assumes when a PROFIBUS network fault occurs and Parameter 24 is set to “0”.

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

Read/Write

1 byte

I/O Setup

—

0 = Go To FltValue (#25)

1 = Hold Last State

Read/Write

1 byte

I/O Setup

—

0 = Open

1 = Closed

Publication CEP7-UM010A-EN-P – January 2008

PROFIBUS Configuration 3-11

OutA Pb IdlState

This parameter, in conjunction with parameter 27, defines how Output A will respond when the PROFIBUS network is idle. When set to “1”, Output A will hold the state prior to PROFIBUS fault occurrence. When set to

“0”, Output A will open or close as determined by the setting in Parameter 27. The Pb Flt parameters supersede the Pb Idl parameters.

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

OutA Pb IdlValue

This parameter determines the state that Output A assumes when the network is idle and parameter 26 is set to “0”.

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

Read/Write

1 byte

I/O Setup

—

0 = Go To IdlValue (#27)

1 = Hold Last State

Read/Write

1 byte

I/O Setup

—

0 = Open

1 = Closed

IN1 Assignment

This parameter allows the user to assign a specific function to the discrete IN1 input.

IN2 Assignment

This parameter allows the user to assign a specific function to the discrete IN2 inputs.

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

Index No.

Access Rule

Size

Group

Units

Min. Value

Max Value

Default Value

Read/Write

1 byte

I/O Setup

—

0 = Normal

1 = Trip reset

2 = OL Contact

Read/Write

1 byte

I/O Setup

—

0 = Normal

1 = Trip Reset

2 = OL Contact

Trip History Group

Trip Log 0

This parameter records the latest trip.

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

Read

2 byte

Trip History

—

See Trip Status table

None

Publication CEP7-UM010A-EN-P – January 2008

3-12 PROFIBUS Configuration

Trip Log 1

This parameter records the trip previous to Trip Log 0.

Trip Log 2

This parameter records the trip previous to Trip Log 1.

Trip Log 3

This parameter records the trip previous to Trip Log 2.

Trip Log 4

This parameter records the trip previous to Trip Log 3.

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

PROFIBUS Setup Group

SSA Node Address

This parameter holds the latest node address sent by the Set

Slave Address telegram. This is the node address the slave will start up with after the next power-cycle.

NOTE: This parameter is added to provide a way to change the node address in the case that the master does not support the SSA service.

Normally this parameter does not need to be used.

Index No.

Access Rule

Size

Group

Units

Min. Value

Max. Value

Default Value

Read

2 bytes

Trip History

—

See Trip Status table

None

Read

2 bytes

Trip History

—

See Trip Status table

None

Read

2 bytes

Trip History

—

See Trip Status table

None

Read

2 bytes

Trip History

—

See Trip Status table

None

—

126

Read/Write

1 byte

PROFIBUS Setup

Publication CEP7-UM010A-EN-P – January 2008

Chapter

Troubleshooting

Introduction

The purpose of this chapter is to assist in troubleshooting the CEP7 Second Generation

PROFIBUS module.

ATTENTION

Servicing energized industrial control equipment can be hazardous.

Electrical shock, burns, or unintentional actuation of controlled industrial equipment may cause death or serious injury. For safety of maintenance personnel, as well as other who may be exposed to electrical hazards associated with the maintenance activities, follow the local safety-related work practices (for example, the NFPS 70W, Part II,

Electrical Safety for Employee Workplaces, in the United States) when working on or near energized equipment. maintenance personnel must be trained in the safety practices, procedures, and requirements that pertain to their respective job assignments. Do not work alone on energized equipment.

ATTENTION

Do not attempt to defeat or override fault circuits. The cause of a fault indication must be determined and corrected before attempting operation. Failure to correct a control system or mechanical malfunction may result in personal injury and/or equipment damage due to uncontrolled machine system operation.

PROFIBUS Modes of Operation

The CEP7 Second Generation PROFIBUS Module has four PROFIBUS modes of operation:

Power-up Mode, Run Mode, and Configuration Error Mode.

Power-Up Mode

During power-Up Mode, the NETWORK STATUS LED should flash green for approximately

1/4 second, then red for 1/4 second.

IMPORTANT

The CEP7 Second Generation PROFIBUS Module protection functions are still operational even without an established network connection.

If the power-up is successful, the overload relay will enter Run Mode.

Run Mode

In Run Mode, the CEP7 Second Generation PROFIBUS Module will operate as a slave device to a master device. The NETWORK STATUS LED will blink green if the PROFIBUS interface is in idle mode. When on-line, the NETWORK STATUS LED will turn solid green.

In the Run Mode, the CEP7 Second Generation PROFIBUS Module will:

• Exchange Cyclic I/O with a master on the PROFIBUS network.

• Respond to Acyclic (DP-V1) read- and write- services

If a communication error is detected, the CEP7 Second Generation PROFIBUS Module will either enter the Configuration Error Mode.

Publication CEP7-UM010A-EN-P – January 2008

4-2 Troubleshooting

Configuration Error Mode

In this mode, the CEP7 Second Generation PROFIBUS Module’s NETWORK STATUS LED flashes red at 1Hz.

Error Type

Configuration Error

Description

Configuration fault or parameter fault

LED State

Flashing Red (1Hz)

Fatal Error Mode

In Fatal Error Mode, the CEP7 Second Generation PROFIBUS Module’s NETWORK STATUS

LED turns solid red. The overload relay continues in this state as long as the device is powered.

The only way to recover from this mode is to power-cycle the module.

Error Type

Fatal

Description

Power-up initialization failure

Fatal communication error

LED State

Solid Red

PROFIBUS Troubleshooting

Procedures

Table 4.4 Troubleshooting using NETWORK STATUS LED

None

Color

Green

Red

Off

Green

State

Flashing (once)

Flashing (1Hz)

Possible Cause

1. The CEP7 Second Generation PROFIBUS Module is not receiving power at the PROFIBUS connector.

2. The module is off-line

Normal operating state; The CEP7 Second Generation

PROFIBUS Module is performing internal initialization procedures.

Normal operating state; CEP7 Second Generation PROFIBUS

Module is in idle state.

Green Solid

Red

Flashing (1Hz)

Solid

Module is on-line.

1. Configuration fault

2. Parameter fault

A fatal error has occurred in the module.

Red Lit 1s then off

Network Status LED

The following table identifies possible causes and corrective actions when troubleshooting

PROFIBUS-related failures using the NETWORK STATUS LED.

Major internal fault

Corrective Action

Check power and PROFIBUS cable connections.

No action required; the Network Status LED flashes green-red-off during a normal power-up sequence.

No action required.

Correct the configuration and restart the PROFIBUS master.

Cycle power to the unit and network. If the fault still exists, replace unit.

Cycle power to the unit and network. If the fault still exists, replace unit. If the problem persists, contact technical support.

Publication CEP7-UM010A-EN-P – January 2008

Troubleshooting 4-3

DP-V1 Error Codes

The following table lists PROFIBUS DP-V1 error codes, possible causes, and corrective actions.

Table 4.5 Troubleshooting by DP-V1 Error Code

DP-V1 ErrorCode1

0xA0

(Read Error)

DP-V1

Read

DP-V1

Write

X 0xA1

(Write Error)

0xB0

(Invalid Index)

0xB1

(Write Length Error)

0xB5

(State Conflict)

0xB7

(Invalid Range)

0xC0

(Read constrain conflict)

0xC1

(Write constrain conflict)

0xC3

(Resource Busy)

X X

Possible Cause Corrective Action

Read access to paramater, which could not be retrieved (e.g. EEPROM error)

Write access filed (e.g. due to

EEPROM error)

Accessing a non-existing parameter.

Correct the Index in the service request and retry.

Correct the number of bytes in the service request and retry.

If applicable, unlock the parameter and retry.

Write access with incorrect amount of data supplied.

Write access to a parameter currently being locked with the parameter lock.

The value in the service request was outside the specified range.

The length in the request doesn’t match the actual size of the parameter.

Write access to a read-only parameter.

Correct the value in the service request and retry.

The length in the request doesn’t match the actual size of the parameter.

Write acces to a parameter mapped as

Cyclic I/O

Input and Output

Troubleshooting Procedures

The following table lists problems related to the on-board inputs and outputs, possible causes, and corrective actions.

Table 4.6 Input and Output Troubleshooting Procedures

Failure Type

Input 1, 2

Failure Description

Input 1 or 2 does not appear to recognize a contact closure

Trip reset operation

Corrective Action

1. Check the supply voltage

2. If the applicable contact closed but the CEP7 Second Generation PROFIBUS Module Input does not recognize the closure, check the continuity and wiring to the connected contact.

3. Measure the voltage across and current through the applicable input. Verify they are within the ratings of the CEP7 Second Generation PROFIBUS Module (See Appendix A).

4. Check the programmable controller ladder logic and I/O mapping.

Check the programming of Parameter 28, IN1 Assignment or Parameter 29, IN2 Assignment.

Publication CEP7-UM010A-EN-P – January 2008

4-4 Troubleshooting

Table 4.6 Input and Output Troubleshooting Procedures (Continued)

Failure Type

OUT A

Failure Description

Output A does not appear to turn on (close) when commanded to do so.

Output A does not appear to turn off (open) when commanded to do so.

The contactor connected to

Output A appears to “chatter”

Corrective Action

1. Check the supply voltage

2. Check the programmable controller ladder logic and I/O mapping.

3. Remove the control circuit power and check for continuity across the appropriate output terminals

(13/14). If the continuity test indicates the output is open, replace the CEP7 Second Generation

PROFIBUS Module. Check the supply voltage against the ratings of the contactor and the relay output before installing a new unit.

4. Remove control circuit power and check the control circuit fuse and the control wiring to the CEP7

Second Generation PROFIBUS Module output terminals.

5. Check the control circuit power supply. Verify the voltage is within the contactor and overload relay ratings.

6. Check the DEVICE STATUS and TRIP STATUS parameters. If a Protection Fault exists, refer to the Trip

and Warning troubleshooting procedure. If a PROFIBUS-related fault exists, refer to the PROFIBUS troubleshooting procedure.

7. Check the OUTA Pr FltState, Pr FltValue, Pb FltState, Pb FltValue, Pb IdlState, and Pb IdlValue programmable parameters. The Pr FltState and Pr FltValue parameter supersede the Pb Flt or Pb Idle parameters.

1. Check the programmable controller ladder logic and I/O mapping.

2. Remove the control circuit power and check for continuity across the appropriate output terminals

(13/14). If the continuity test indicates the output is closed, replace the CEP7 Second Generation

PROFIBUS Module. Check the supply voltage against ratings of the contactor and the relay output before installing a new unit.

3. Remove control circuit power and check the control circuit fuse and the control wiring to the CEP7

Second Generation PROFIBUS Module output terminals.

4. Check the OUTA Pr FltState, Pr FltValue, Pb FltState, Pb FltValue, Pb IdlState, and Pb IdlValue programmable parameters. Then check the DEVICE STATUS and TRIP STATUS parameters. If a

Protection Fault exists, refer to the TRIP STATUS parameters. If a Protection fault exists, refer to the Trip

and Warning troubleshooting procedure. If a PROFIBUS-related fault exists, refer to the PROFIBUS troubleshooting procedure.

1. Check the programmable controller’s ladder logic program.

2. Check the control circuit supply voltage. Verify it is within the ratings of the contactor coil and the overload relay’s outputs.

3. Remove the control circuit power. Verify all control wiring is properly secured.

Trip and Warning

Troubleshooting Procedures

The following table lists the possible causes for each trip type and the recommended action to take.

Table 4.7 Trip/Warn LED Troubleshooting Procedures

Overload

Phase Loss

1. Motor overloaded

2. Improper setting

1. Missing supply phase

2. Poor electrical connection

3. Contactor operation

4. Improper device type

Jam 1. Motor current has exceeded the programmed jam level

2. Improper parameter settings

1. Check and correct source of overload (load, mechanical transmission components, motor bearings).

2. Set FLA dial and trip class to match the motor and application requirements.

1. Check for open line (i.e. blown fuse).

2. Check all power terminations from the branch circuit-protecting device down to the motor for proper tightness. Ensure that the overload connection to the contactor is secure.

3. Inspect contactor for proper operation.

4. CEP7S is required for single-phase applications.

1. Check for the source of the jam (i.e. excessive load or mechanical transmission component failure).

2. Parameter 15, Jam Trip Level, is set too low for the application. Check to ensure that the FLA dial is set correctly.

Publication CEP7-UM010A-EN-P – January 2008

Appendix

Specifications

Terminal Ratings:

Terminal Screw

Wire Cross Section

Torque

Degree of Protection

Power Supply Ratings:

Rated Supply Voltage Us

Rated Operating Range Ue

Rated Supply Current Ie

Maximum Surge Current at Power-Up

Maximum Power Consumption

Maximum Power Interruption Time

Output Relay Ratings:

Terminals

OUT A:

Type of Contacts

Rated Thermal Current I the

Rated Insulation Voltage Ui

Rated Operating Voltage Ue

Rated Operating Current Ie

Minimum Operating Current

Rating Designation

Utilization Category

Resistive Load Rating

(p.f.=1.0)

Inductive Load Rating

(p.f.=0.4), (L/R=7 ms)

Short Circuit Current Rating

Recommended Control Circuit Fuse

Rated Number of Operations

Out A:

W/100-C-09…100-C43

W/100-C-60…100-C85

W/NEMA Size 0…2

W/NEMA Size 3

Input Ratings:

Terminals

IN 1:

IN 2:

SSV (Sensor Supply Voltage)

Supply Voltage (provided by module)

See wiring diagram section

0.5…0.6 N•m (4.4…5.3 lb.-in)

IP20

24V DC

20.4 - 26.4

0.1 A

2.5 A

2.5 W

0.5ms

13/14

Form A

SPST - NO

5 A

300V AC

240V AC

3 A (at 120V AC), 1.5 A (at 240V AC)

0.25 A (at 110V DC), 0.1 A (at 220V DC)

10 mA at 5V DC

B300

AC-15

5 A, 250V AC

5 A, 30V DC

2 A, 250V AC

2 A, 30V DC

1,000 A

KTK-R-6

(6 A, 600V)

5,000,000

2,500,000

1,000,000

300,000

20.4 - 26.4V DC

Publication CEP7-UM010A-EN-P – January 2008

A-2 Specifications

Publication CEP7-UM010A-EN-P – January 2008

Type of Inputs

ON-State Voltage

On-State Current (turn-on)

Steady State Current

Off-State Voltage

Off-State Current

Transition Voltage

Transition Current

Environmental Ratings:

Ambient Temperature Tamb

Storage

Operating

(Open)

(Enclosed)

Humidity

Operating

Damp Heat - Steady State

Damp Heat - Cyclic

Cooling Method

Vibration (per IEC 68-2-6)

Shock (per IEC 68-2-27)

Maximum Altitude

Pollution Environment

Terminal Marking

Degree of Protection

Electromagnetic Compatibility

Electrostatic Discharge Immunity

Test Level

Current Sinking

15V DC

15 mA

5 VDC

0.5 mA

5... 15 VDC

0.5... 15mA

-40…+85°C (-40…+185°F)

-20…+60°C (-4…+140°F)

-20…+40°C (-4…+104°F)

5…95% non-condensing per IEC 68-2-3 per IEC 68-2-30

Natural Convection

3 G

30 G

2000 m

Pollution Degree 2

EN 50012

IP20

Performance Criteria

8 kV Air Discharge

4 kV Contact Discharge

(1)(2)

Radiated RF Immunity

Test Level 10V/m

Performance Criteria

(1)(2)

Electrical Fast Transient/Burst Immunity

Test Level 2 kV (Power)

1 kV (control)

Performance Criteria

(1)(2)

Surge Immunity

Test Level 2 kV L-E

1 kV L-L

Performance Criteria

Radiated Emissions

Conducted Emissions

(1)(2)

Class A

Not tested

WARNING

This is a class A product. In domestic environment, this product may cause radio interference, in which case the user may be required to take adequate measures.

PROFIBUS Communications:

Baud Rate

Auto-Baud Rate identification

9.6 k, 19.2 k, 45.45 k, 93.75 k,

187.5 k, 500 k, 1.5 M, 3 M, 6 M,

12 M

Yes

Specifications A-3

DP-V0 (Cyclic data exchange)

DP-V1 (Acyclic services)

DP-V2 (Acyclic services)

Set Slave Address (SSA) support

Jam Protection:

Trip Level

Trip Delay

Inhibit

Yes

150…600% FLA

0.1…25.0 sec.

0…250 sec.

Standards

UL 508

CSA 22.2, No. 14

(1)

EN 60947-4-1

Performance Criteria 1 requires the DUT (device under test) not to experience degradation or loss of performance.

(2)

Environment 2 - Heavy Industrial.

Publication CEP7-UM010A-EN-P – January 2008

A-4 Specifications

Publication CEP7-UM010A-EN-P – January 2008

Appendix

PROFIBUS Information

Structure of the "Set Prm

Data"-telegram

4-5

6-7

13-14

15-16

Trip Enable

Warning Enable

Single/Three Ph

OL Reset mode

OL Warning Level (%Therm. Util.)

Jam Inhibit Time (1s)

Jam Trip Delay (0.1s)

Jam Trip Level (%FLA)

Jam Warn Level (%FLA)

UL Inhibit Time (1s)

UL Warn Level (%FLA)

Program Lock

OutA Pr State/Value

OutA Pb State/Value

OutA Pb IdlState/Value

IN1 Assignment

IN2 Assignment

During startup of the network, it is possible to force start-up values for all writable parameters through the User Prm Data. The module will use the settings provided that the "Parameter

Initialization"-setting (User Prm Data byte #3) is set as "Enabled". Note that this will result in any previous settings to be replaced by the settings from the User Prm Data.

Table B.5 Structure of the "Set Prm Data"-telegram

Byte no.

0-2

Name

DP-V1 standard bytes

Parameter Initialization

Description

Enables/Disables initialization of parameters via parameterization data.

1= Enabled

0= Disabled

Initial value for parameter 8, Trip Enable

Initial value for parameter 9, Warning Enable

Initial value for parameter 10, Single/Three Ph

Initial value for parameter 11, OL Reset mode

Initial value for parameter 12, OL Warning Level

Initial value for parameter 13, Jam Inhibit Time

Initial value for parameter 14, Jam Trip Delay

Initial value for parameter 15, Jam Trip Level

Initial value for parameter 16, Jam Warn Level

Initial value for parameter 17, UL Inhibit Time

Initial value for parameter 18, UL Warn Level

Initial value for parameter 20, Program Lock

Bit 0: Initial value for parameter 22, OutA Pr FltState

Bit 1: Initial value for parameter 23, OutA Pr FltValue

(Other bits: Not used, Must be set to 0)

Bit 0: Initial value for parameter 24, OutA Pb FltState

Bit 1: Initial value for parameter 25, OutA Pb FltValue

(Other bits: Not used, Must be set to 0)

Bit 0: Initial value for parameter 26, OutA Pb IdlState

Bit 1: Initial value for parameter 27, OutA Pb IdlValue

(Other bits: Not used, Must be set to 0)

Initial value for parameter 28, IN1 Assignment

Initial value for parameter 29, IN2 Assignment

Electronic Data Sheet

Electronic data sheet (GSD) files are specially formatted ASCII files that provide all of the information necessary for a PROFIBUS configuration tool to access and alter the parameters of a device. The GSD file contains all the parameter information of a device: number of parameters, groupings, parameter name, min, max, and default values, units, data format and

Publication CEP7-UM010A-EN-P – January 2008

B-2 PROFIBUS Information

Set Slave Address

Supported Baud Rates

PROFIBUS Identity

Publication CEP7-UM010A-EN-P – January 2008 scaling. The GSD file for the CEP7 Second Generation PROFIBUS Module is available from the Internet at www.ab.com/networks/gsd/.

The PROFIBUS Module supports the Set Slave Address (SSA) service, which can be used to specify the node address from the PROFIBUS Master.

If successful, the new node address will be stored in non volatile memory, replacing the previous value of parameter 35, SSA Node Address.

NOTE: This service will be rejected if a previous SSA service request has specified that no further changes should be allowed, or if the PROFIBUS Module is in Data Exchange.

The PROFIBUS Module detects the baud rate automatically, and supports all standard baud rates.

Supported baud rates:

• 9.6kbps

• 19.2kbps

• 45.45kbps

• 93.75kbps

• 187.5kbps

• 500kbps

• 1.5Mbps

• 3Mbps

• 5Mbps

• 12Mbps

The module has the following identity on PROFIBUS:

PI Identification Number

Vendor Name

Model Name

0x0AC7

Sprecher + Schuh

"CEP7-EPRB"

Identification and Maintenance (I&M)

Identification & Maintenance (I&M) provides a standard way of gathering information about an

I/O device. The intention is to help the end-user in maintenance of the product.

The module features the following I&M records:

Table B.6 IM0 Record

Information

Manufacturer ID

Order ID

Serial Number

Hardware Revision

Software Revision

Revision Counter

Profile ID

Size

2 octets

20 octets

16 octets

2 octets

4 octets

2 octets

Default Value

0x0002

CEP7-EPRB

(assigned during manufacturing)

0x0000

0xF600

Table B.6 IM0 Record

Information

Profile Specific Type

IM Version

IM Supported

Table B.7 IM1 Record

Information

Tag Function

Tag Location

Table B.8 IM2 Record

Information

Installation Date

Table B.9 IM3 Record

Information

Descriptor

Size

2 octets

Default Value

0xF600

0x0101

0x001E

Size

32 octets

22 octets

Default Value

Blank (0x20)

Size

16 octets

Default Value

Blank (0x20)

Size

54 octets

Default Value

Blank (0x20)

PROFIBUS Information B-3

Publication CEP7-UM010A-EN-P – January 2008

B-4 PROFIBUS Information

Notes:

Publication CEP7-UM010A-EN-P – January 2008

Publication CEP7-UM010A-EN-P — January, 2008

Key Features

PROFIBUS communication support
Real-time motor current monitoring
Overload, underload, and jam protection
Trip and warning functions
Output relay for control and indication
Discrete inputs for user-defined functions
Trip history logging
Parameter configuration via PROFIBUS network
Factory default configuration settings

Frequently Answers and Questions

What is the purpose of the CEP7 Second Generation PROFIBUS Module?

It connects a CEP7 Second Generation Overload Relay to a PROFIBUS network enabling monitoring of motor current and providing overload, underload, and jam protection.

How does the module provide protection?

It monitors motor current in real time and provides warnings and trip commands based on configured settings for overload, underload and stall conditions.

How can I configure the module?

The module can be configured via the PROFIBUS network using a GSD file, which contains information about parameters, profiles, I/O types, and sizes.