Toshiba G3 TOSVERT-130 User Manual

HIGH PERFORMANCE TRANSISTOR INVERTER

TRUE TORQUE CONTROL DRIVE SERIES

PROFIBUS-DP COMMUNICATIONS INTERFACE

December, 1998 ICC #10160-001

Introduction

Thank you for purchasing t he “ Pr ofibus-DP Communications Interface” for the Toshiba TOSVERT-130 G3 High-Performance Transistor Inverter. Before using t he Profibus-DP interface, please be sur e t o t horoughly read the instructions and precautions contained in this manual. In addition, please m ake sure that this instruction manual is delivered to the end user of t he invert er unit into which the Profibus-DP interface kit is installed, and keep this instruction m anual in a safe place for future reference or inverter inspection.

This instruction manual describes the device specificat ions, wiring methods, maintenance procedures, supported functions and usage methods for the Prof ibusDP communications interface.

Usage Precautions

Operating Environment

Operating EnvironmentOperating Environment

•= Please use the interface only when the ambient temperature of the inverter unit into which the interface is installed is within the following specified temperature limits:

Operation Storage

•= Avoid installation locations that may be subjected to large shocks or vibrations.

•= Avoid installation locations that may be subjected to rapid changes in temperature or

humidity.

Installation

Installation •••• Wiring

Installation Installation

•= Do not touch charged parts such as the terminal block while the inverter’s CHARGE lamp is lit. A charge will still be present in the inverter unit’s internal electrolytic capacitors, and therefore touching these areas may result in an electrical shock. Always turn all inverter input power supplies OFF, and wait at least 5 minutes after the CHARGE lamp has gone out before connecting communication cables or motor wiring.

•= When installing the interface board into the inverter and making wiring connections, make certain that no clippings or wiring leads that could cause device failure fall into the inverter or onto electronic components.

•= Proper ground connections are vital for both safety and signal reliability reasons. For proper grounding procedures, please refer to the section in this manual pertaining to grounding (section 3).

•= Route the communication cables separate from the inverter input/output power wiring.

•= To avoid the possibility of electric shock due to leakage currents, always ground the

inverter unit’s E/GND terminal and the motor. To avoid misoperation, do not connect the Profibus interface board's shield terminal to either of the above-mentioned grounds or any other power ground.

: -10 ∼ +40°C (+14 ∼ +104°F)

: -25 ∼ +65°C (-13 ∼ +149°F)

Wiring

Wiring Wiring

Other Precautions

Other PrecautionsOther Precautions

•= The inverter’s EEPROM has a life span of 10,000 write cycles. Do not write to the same parameter register more than 10,000 times.

•= Do not touch or insert a rod or any other item into the inverter while power is applied, as this may lead to electrical shock or inverter damage.

•= Commission the disposal of the interface board to a specialist.

•= Do not assign the same address to more than one inverter in the same network.

•= Individual slave addresses can be set from 0 ∼ 125. Addresses 126 and above are

invalid, and will cause the inverter to trip "OPTION PCB ERROR".

•= When the inverter’s control power supply is turned on, the inverter performs initialization functions for approximately 2 seconds, during which communications capabilities are disabled. Communications capabilities will also be disabled for approximately 2 seconds after momentary control power supply outages or inverter resets.

1. Interface Board Diagram..........................................................................5

2. Interface Board Installation / Removal...................................................6

2.1 Before Installation............................................................................................6

2.2 Installation Procedure.......................................................................................7

2.3 Removal.........................................................................................................11

2.3.1 Before Removal......................................................................................11

2.3.2 Removal Procedure.................................................................................11

3. Grounding...............................................................................................14

4. Equipment Specifications .....................................................................14

5. Maintenance And Inspection.................................................................15

6. Storage And Warranty............................................................................16

6.1 Storage..........................................................................................................16

6.2 Warranty........................................................................................................16

7. G3 Parameter Settings...........................................................................17

8. Feature Summary...................................................................................18

9. Exchanged Data Structures ..................................................................20

9.1 Output (Control) Data Format.........................................................................20

9.2 Input (Status) Data Format.............................................................................22

9.3 Diagnostics.....................................................................................................24

10. Parameter Register Access................................................................25

10.1 Parameter Number / Action Output Words .................................................25

10.2 Parameter Number / Action Input Words....................................................26

10.3 Parameter Access Procedure.....................................................................27

10.4 Register Access Error Codes......................................................................28

11. Parameter Registers...........................................................................29

11.1 Read-Only Registers ..................................................................................31

11.2 Read/Write Registers .................................................................................33

11.2.1 GROUP:FUNDAMENTAL PARAMETERS #1......................................33

11.2.2 GROUP:FUNDAMENTAL PARAMETERS #2......................................34

11.2.3 GROUP:PANEL CONTROL PARAMETERS.......................................34

11.2.4 GROUP:TERMINAL SELECTION PARAMETERS ..............................35

11.2.5 GROUP:SPECIAL CONTROL PARAMETERS....................................39

11.2.6 GROUP:FREQUENCY SETTING PARAMETERS...............................40

11.2.7 GROUP:PROTECTION FUNCTION PARAMETERS...........................43

11.2.8 GROUP:PATTERN RUN CONTROL PARAMETERS.......................... 45

11.2.9 GROUP:FEEDBACK CONTROL PARAMETERS................................48

11.2.10 GROUP:COMMUNICATION SETTING PARAMETERS......................49

11.2.11 GROUP:AM/FM TERMINAL ADJUSTMENT PARAMS........................50

11.2.12 GROUP:UTILITY PARAMETERS........................................................51

11.2.13 GROUP:MOTOR RATING PARAMETERS ......................................... 53

11.3 Inverter Fault Codes................................................................................... 55

12. GSD File .............................................................................................. 57

13. Notes ................................................................................................... 59

1. Interface Board Diagram

Interface Board Diagram

1.1.

Interface Board DiagramInterface Board Diagram

Standoff mounting holes

Plated SHIELD connection

point for grounding (refer to

Section 3).

Standoff mounting holes

Network connector (CN1)

2. Interface Board Installation / Removal

Interface Board Installation / Removal

2.2.

Interface Board Installation / RemovalInterface Board Installation / Removal

The Profibus Communications Option ROM enclosed with the Profibus kit is compatible only with G3 inverters with V120 or later main soft ware. An er r o r will occur if the option ROM is installed in an inverter with pre-V120 main software. The main software version number is printed on the CPU package (IC1) on the control board. Additionally, this version number can be read from inverter memory by displaying the parameter CPU VERSION in GROUP:UTILITY PARAMETERS. If you are unsure of the software version of your inverter, please contact Toshiba International Corporation for more information.

The Profibus option ROM version number is printed on the label attached to the ROM. The option ROM version number can also be read from t he invert er ’s memory and displayed on the LCD panel after initialization by displaying the parameter ROM VERSION in GROUP:UTILITY PARAMETERS. The opt ion RO M version number replaces the standard ROM version number after installation/initialization.

IMPORTANT NOTE: The option ROM included with the Profibus interface k it is for installation into G3 230V/ 460V unit s only any other inverter unit (such as H3, E3, or G 3 600V unit s ) . All inverter units other than the G3 230V/460V series are shipped from the factory with full communications capability, and installation of the option ROM may cause incorrect oper at ion or inverter damage.

Please note that due to internal mechanical clearances, not all Pr ofibus connectors can be used on all inverter units. Ensure that the Profibus connector that you plan on using does not come into contact with any of the drive’s internal com ponents, circuit boards or brackets. Toshiba has det er m ined t hat connectors such as the ERNI 103648 (non-terminated) and 103649 (ter m inat ed) will work for all installations. If you have difficulty locating a connector which will work properly in your unit, please contact Toshiba International Corpor at ion for assistance.

Additionally, certain drive models require a modified panel support bracket to allow installation of the Prof ibus interface. Specifically, all G3 460v 10HP through 50HP and 230v 7.5HP through 25HP units require a m odified panel support bracket. To obtain this support bracket, contact your local distributor or Toshiba Internat ional Corporation.

. Do not install the option ROM into

2.1

2.1 Before Installation

2.12.1

All parameters will be automatically reset to the factory default values after the opt ion ROM is installed in the inverter. If it is desir ed to retain the current parameter settings, the user should access the user-changed parameter group to display and record all the parameters and setting values that have been changed from factory defaults. Even if the curr ent set tings are saved to non-volatile memory by setting the

STANDARD SETTING MODE SELECTION paramet er in GROUP:UTILITY PARAMETERS to 5

ROM.

Before Installation

Before InstallationBefore Installation

, they will be erased from memory during init ialization of the option

•

= Setting the standard mode selection paramet er will be referred to in this manual

as performing a TYPE X RESET, where X is the param et er setting value.

2.2

2.2 Installation Procedure

2.22.2

Installation of the TO SHIBA Profibus option ROM and interface board into a TOSVERT-130 G3 inverter should only be performed by a qualified technician familiar with the maintenance and operation of the G3. To install the option RO M and interface board, complete t he following steps:

1. Record the option ROM version number located on the label of the option ROM in

Installation Procedure

Installation ProcedureInstallation Procedure

the following box. The option ROM version is the number immediately following the “V” on the ROM label. For example, if the label indicates “V6402”, the option ROM version is 6402. This version number will be used later in the installation process. Option ROM version =

Record the standard ROM version number prior to option RO M installation. The standard ROM version can be read from parameter ROM VERSION in GROUP:UTILITY PARAMETERS. Standard ROM version =

2. CAUTION! Verify that all input power sources to the inverter have

been turned OFF and are locked and tagged out.

5. Loosen the 4 screws attaching the G3’s operation panel support bracket to the

DANGER! Wait at least 5 minutes for the inverter’s electrolytic

capacitors to discharge before pr oceeding to step 4. Do not touch any internal

parts with power applied to the inverter, or for at least 5 minutes after power to the inverter has been removed. A hazard exists temporarily for electrical shock even if the source power has been removed.

Remove the inverter’s cover (open the door on units with hinged doors). Verify that the CHARGE LED has gone out before continuing the installation process.

control board support bracket, and t hen remove the operation panel and support bracket as a unit (ref er to Figure 1).

operation panel support bracket

operation panel support

bracket screws

Figure 1: G3 with front cover removed

CAUTION! The option ROM PCB assembly and interface board are

static-sensitive devices. Standard electrostatic- sensit ive component handling precautions should be observed. Locate the option ROM connector, labeled CN41, on the lower-left side of the control PCB. Line up the connector on the back of the option ROM PCB with CN41. Install t he opt ion ROM by pressing gently but firmly on the option ROM PCB until a slig ht “click” is felt. Ver ify that the option ROM PCB is seated properly and firmly in CN41. If the option ROM connector does not appear to be mating with CN41 properly, verify that the ROM is oriented properly and that there are no obstructions in either connector.

7. Install the 4 nylon standoffs into the holes provided in the control board support bracket (refer to Figure 2).

standoff mounting holes

Figure 2: G3 with front cover and operation panel support bracket

removed

8. Install the Profibus network cable through the access holes at the bot t om of the inverter and route the cable in order to make connections to the interface board connector (CN1). Take care to not route the cable near any sharp edges or in positions where it may be pinched.

9. Connect the Profibus cable to the interface board connector ( CN1) . If a ground cable is going to be used, attach the ground cable to the plated hole near CN1 on the lower-right portion of the Profibus board (refer to section 3).

CAUTION! Extremely high voltag es exist in t he ar ea near the Profibus

interface board and connector. Ensure t hat no stray wires come into contact with any internal inverter components. Also ensure that the com m unications cable is not routed in such a manner that it may come int o cont act with high-voltage inverter components, or inverter components t hat m ay heat up dur ing operation and damage the cable insulation.

10. Install the interface board into the inverter by carefully aligning the 4 nylon standoffs with the 4 mounting holes provided in the interface board. Ensure that connector CN5A on the back side of the int erface board is aligned with connector CN5 on the front side of t he cont rol board.

11. Press the interface board firmly onto the standoffs and connector CN5 until the standoff retaining tabs lock. Ensure that CN5 and CN5A are thoroughly interlocked.

12. Carefully re-install the operation panel and support bracket and t ighten the 4 screws that attach the operation panel support bracket to the control board support bracket. Once installed, take a moment to verify that all int er face board and network components have sufficient clearance from other drive components.

13. If a ground cable is being used, connect the ground cable to t he selected ground point.

14. Reinstall the inverter’s cover (close and latch the door on units with hinged doors).

DANGER! Do not operate the unit with the cover off / cabinet

door open.

15. Turn all power sources to the inverter unit ON, and verify that the inverter functions properly. If t he inverter unit does not appear to power up, or does not function properly, immediately turn power OFF. Repeat steps 2 ∼∼∼∼ 4 to remove all power from the inverter. Then, verify all connections. Cont act Toshiba International Corporation f or assistance if the problem persists.

16. To perform final verification that t he option ROM is installed properly, display the value of the ROM VERSION param eter in GROUP:UTILITY PARAMETERS. This number should match the option ROM version number that was recorded in step

1. If this parameter value does not m atch the option ROM version number recorded in step 1, repeat steps 2 ∼∼∼∼ 4 to remove all power from the inverter, then re-verify that the option RO M is installed proper ly. If the option ROM appears to be installed properly, but the version numbers st ill do not match, contact Toshiba International Corpor at ion for further assistance.

2.3

2.3 Removal

2.32.3

Removal of the Profibus inter face board from a TOSVERT-130 G3 inverter should only be performed by a qualified technician familiar with the maintenance and operation of the G3. In or der to protect the interface board connect or ’s r eliabilit y, do not repeatedly connect and disconnect the interf ace. Use the following procedure if it becomes necessary to remove the Profibus interface board from the inverter.

the inverter. Removing the interface board with power applied may damage the inverter.

2.3.1

2.3.1 Before Removal

2.3.12.3.1

The inverter will display an error message if t he option ROM becomes dislodged or is removed from its socket. The inverter must be reset to clear this err or . Therefore, all parameters will be automatically reset to the factory default values after an option ROM has been removed from the inverter. If it is desired to retain the current parameter settings, the user should access t he user - changed parameter group to display and record all the parameters and setting values that have been chang ed from factory defaults. Even if the current settings are saved using the TYPE 5 RESET function, they will be erased from memory during the re-initialization of t he inverter after the option RO M has been removed.

Removal

RemovalRemoval

CAUTION! Do not remove the interface board while power is applied to

Before Removal

Before RemovalBefore Removal

2.3.2

2.3.2 Removal Procedure

2.3.22.3.2

1. CAUTION! Verify that all input power sources to the inverter have

4. Loosen the 4 screws attaching the operation panel support bracket to the contr ol

Removal Procedure

Removal ProcedureRemoval Procedure

been turned OFF and are locked and tagged out.

DANGER! Wait at least 5 minutes for the inverter’s electrolytic

capacitors to discharge before pr oceeding to step 3. Do not touch any internal

Remove the inverter’s cover (open the door on units with hinged doors). Verify that the CHARGE LED has gone out before continuing the removal process.

board support bracket and remove the operat ion panel and suppor t bracket as a unit (refer to Figure 3).

operation panel support bracket

operation panel support

bracket screws

Figure 3: G3 with front cover removed

5. CAUTION! The option ROM PCB and Profibus interface board are

static-sensitive devices. Standard electrostatic- sensit ive component handling precautions should be observed. Release the 4 corners of the int er face board from the standoffs by pressing down on the standoff locking tabs with a small flatheaded screwdriver. Be careful to not apply any abnormal stress to the int e r face board while performing this, as t his m ay damage the interface board or control board connectors.

6. Remove the interface board from the inverter.

7. Disconnect the communications cable from the interface board connect or (CN1), and pull the cable out through the access holes at the bot tom of the inverter.

8. Locate the option ROM in the option ROM connector, labeled CN41, on the lower-left side of the contr ol PCB. Gently work the option ROM PCB up and down while pulling on it until the ROM releases from the contr ol PCB option ROM connector.

IMPORTANT NOTE: Do not remove the option ROM on inverter units that were received from the factory with option ROMs pre-inst alled. Units that are shipped from the fact or y with option ROMs pre-installed (H3 and 600V G3 units, for example) require these ROMs for correct operation, and removal of the option ROM may cause incorrect operation or inverter damage. If you are in doubt about the requirement of an option ROM in your inverter unit, contact Toshiba International Corporation f or assistance.

9. Carefully re-install the operation panel and support bracket and tighten the 4 screws that attach the operation panel support bracket to the control board support bracket.

10. Reinstall the inverter’s cover (close and latch the door on units with hinged doors).

DANGER! Do not operate unit wit h t he cover off / cabi net

door open.

11. Turn all power sources to the inverter unit ON, and verify that the inverter functions properly. If t he inverter unit does not appear to power up, or does not function properly, immediately turn power O FF. Repeat st eps 1 ∼∼∼∼ 3 to remove all power from the inverter. Then, verify all connections. Cont act Toshiba International Corporation f or assistance if the problem persists.

12. To re-initialize the inverter after the ROM has been removed, perform a TYPE 3 reset. After t he init ialization sequence, display the value of the ROM VERSION parameter in GROUP:UTILITY PARAMETERS. This number should match the standard ROM version number that was recorded prior to option RO M installation. If this parameter value does not match the value recorded earlier, contact Toshiba International Corporation for further assistance.

3. Grounding

Grounding

3.3.

GroundingGrounding

Grounding is of particular im portance for reliable, stable operation. Communication system characteristics may vary from system to system, depending on the system environment and grounding method used. The Profibus interface card is pr ovided with a plated SHIELD connection point by CN1, on the lower right-hand side of the board. This SHIELD connection point is directly connected to the metallic housing of the DB9 connector, which should then be connected to the shield of t he Profibus network cable through the Profibus connector. To ground the network cable shield, therefore, connect a wire with lug terminal t o this SHIELD point, and then connect the other end of the wire to an appropriate g r ound. For specific details and requirements regarding protective gr ounding and the Profibus network, refer to the Profibus Standard (DIN 19245, part 1).

Please be sure to consider the following points f or m aking proper ground connections:

Grounding method checkpoints

1. Make all ground connections such that no ground current flows through the inverter case.

2. Ensure that all grounds are connected to points that are at the same pot ential as inverter grounds.

3. Do not connect the Profibus interface board's SHIELD connection point to a power ground or any other potential noise-producing ground connection (such as the inverter's E/GND terminal).

4. Do not make connections to unstable grounds (paint-coated screw heads, grounds that are subjected to induct ive noise, etc. )

4. Equipment Specifications

Equipment Specifications

4.4.

Equipment SpecificationsEquipment Specifications

Item Specification

Operating Environment Operating Temperature

Storage Temperature Relative Humidity Vibration Grounding According to DIN 19245, part 1 Cooling Method Self-cooled

Indoors, less than 1000m above sea level, do not expose to direct sunlight or corrosive / explosive gasses.

-10 ∼ +40°C (+14 ∼ +104°F)

-25°C ∼ +65°C (-13 ∼ +149°F) 20% ∼ 90% (without condensation)

5.9m/s

{0.6G} or less (10 ∼ 55Hz)

5. Maintenance And Inspection

Maintenance And Inspection

5.5.

Maintenance And InspectionMaintenance And Inspection

Preventive maintenance and inspection is required to maint ain t he Pr ofibus communication interface in its opt im al condition, and to ensure a long operational lifetime. Depending on usag e and oper at ing conditions, perform a periodic inspection once every three to six months. Before starting inspections, always turn off all power supplies to the inverter unit , and wait at least five minutes after the inverter’s “CHARGE” lamp has gone out .

DANGER! Do not touch any internal parts with power applied

to the inverter, or for at least 5 minutes after power to the inverter has been removed. A hazard exists temporarily for electrical shock even if the source power has been removed.

Inspection Points

•= Check that the network connector screws are not loose. Tighten if necessary.

•= Check that there are no def ect s in any att ached grounding wire terminal crimp

points. Visually check that the crimp points ar e not scar red by overheating.

•= Visually check the wiring and cables for damage.

•= Clean off any accumulated dust and dirt. Place special emphasis on cleaning the

ventilation ports of the inverter and all inst alled PCBs. Always keep t hese ar eas clean, as adherence of dust and dirt can cause premature component failure.

•= If use of the inverter unit is discontinued for extended periods of time, turn the power on at least once every two years and confirm that the unit still f unctions properly.

•= Do not perform hi-pot t est s on t he invert er or Profibus interface board, as t hey may damage the unit’s internal components.

Please pay close attention to all periodic inspection points and maintain a g ood operating environment.

6. Storage And Warranty

Storage And Warranty

6.6.

Storage And WarrantyStorage And Warranty

6.1

6.1 Storage

6.16.1

Observe the following points when the Profibus interface board is not used immediately after purchase or when it is not used for an extended period of time.

•= Avoid storing the interface board in places t hat are hot or humid, or that contain

•= When not using the Profibus interface board for an extended period of time, turn

6.2

6.2 Warranty

6.26.2

Storage

StorageStorage

large quantities of dust or metallic dust. Store the interface board in a wellventilated location.

the power on at least once every two years and confirm that it still f unct ions properly.

Warranty

WarrantyWarranty

The Profibus communications inter face kit is covered under warranty for a period of 12 months from the date of installation, but not to exceed 18 months from the date of shipment from the f actory. For further warranty or service inform at ion, please contact Toshiba International Corporation.

7. G3 Parameter Settings

G3 Parameter Settings

7.7.

G3 Parameter SettingsG3 Parameter Settings

Profibus interface board com munications are enabled by setting parameter COMMUNICATION SELECTION in GROUP:COMMUNICATION SETTING PARAMETERS to 2 (Profibus, Modbus, DeviceNet). None of t he Tosline-F10 communication parameter settings apply when using the Profibus interface. For more inf ormation on methods for changing par ameter settings, refer t o the TOSHIBA G3 Operation Manual.

The following is a list of the parameter settings that are req uir ed during setup to enable Profibus communications:

Parameter Group Required Value

BLIND FUNCTION SELECTION COMMUNICATIONS PARMS BLIND COMMUNICATION SELECTION INVERTER ID NUMBER GROUP:COMMUNICATION

Although the INVERTER ID NUMBER parameter can be set from 0 to 255,

Note:

the allowable Profibus slave addresses range only from 0 to 125. Therefore, if this parameter is set t o a value from 126 to 255, the Profibus inter face card will trip “OPTION PCB ERROR” upon initialization. To correct this error, set the INVERTER ID NUMBER parameter to a value fr om 0 to 125.

To implement any parameter changes in GROUP:COMMUNICATION SETTING PARAMETERS, the drive must be reset after m aking the changes.

If the drive into which a Profibus communications interface board is installed trips “OPTION PCB ERROR” for any reason during init ialization or operation (for example, if it becomes loose from it s m ounting connections), it is incapable of being r eset via the Profibus network. When this trip condition occurs, t her efore, the drive can only be reset locally via the panel or control terminal block.

If drive control (f r equency command input, RUN/STOP, etc.) is to be performed via the Profibus network, the following inverter parameters must also be set as shown:

Parameter Group Required

COMMAND MODE SELECTION GROUP:UTILITY PARAMETERS FREQUENCY MODE SELECTION GROUP:UTILITY PARAMETERS

Of course, input data can always be monitored f r om the network regardless of the settings of COMMAND MODE SELECTION and FREQUENCY MODE SELECTION. Also note that if the COMMAND MODE SELECTION or FREQUENCY MODE SELECTION parameters are changed while the drive is running, t he change will not take effect until the next time the drive is stopped.

GROUP:UTILITY PARAMETERS GROUP:UTILITY PARAMETERS GROUP:COMMUNICATION SETTING PARAMETERS

SETTING PARAMETERS

1 1 2

any value other than

126 ∼ 255.

Value

3 3

8. Feature Summary

Feature Summary

8.8.

Feature SummaryFeature Summary

The Toshiba Profibus-DP interface provides a wide array of network data access and drive control features. Combined with the flexible configuration and high-speed data transfer capabilities of the Profibus network, this allows powerful networked cont rol and monitoring systems to be designed. Som e of the main features provided in the G3 Profibus-DP interface which allow for this control and configurabilit y are briefly described here:

Protocol

Profibus DP (Decentralized Periphery). The int er face can also co-exist simultaneously on networks using Profibus- FMS.

Network Baud Rates

Supports all Profibus baud rates from 9.6kbaud to 12Mbaud. The network baud rate is automatically detected and continuously monitored during operation; no parameter settings are necessary.

Global Control Functions

•= Freeze mode

•= Sync mode

•= Clear_Data

Address Change Functions

Set_slave_address function supported – allows modification of the drive’s INVERTER ID NUMBER parameter . The INVERTER ID NUMBER parameter can also be

changed while in the DATA_EXCHANGE state by accessing paramet er register 204 (hex). Refer to sections 10 and 11 of this document for more infor m ation on accessing parameter registers.

Network Watchdog

: Input (monitor) data values are held constant at the drive until the

next “freeze” command or an “unf r eeze” com m and is r eceived. Used primarily for synchronized monitoring of multiple Profibus nodes.

: Output (control) data values are held const ant at the drive until the

next “sync” command or an “unsync” command is received. Used primarily for synchronized control of m u lt iple Pr ofibus nodes.

: All output (control) dat a values are clear ed to “0”.

A network watchdog function is always operating within the interface – in the event of a disconnection from the network or loss of the network master, the inter face will automatically stop the drive for saf ety (note that either the COMMAND MODE SELECTION or FREQUENCY MODE SELECTION parameter must be set to 3 ( net work control) in order for the drive to stop when a watchdog time-out occurs).

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