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Baldor BXII installation manual Reset states, System watchdog

Models: BXII

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4.8 Reset states

4.8 Reset states

During power up, NextMove BXII is held in a safe non-operational state known as hardware reset. It will also go into hardware reset if the 24V logic supply drops below approximately 18V. This prevents uncontrolled operation due to the electronics losing power. When NextMove BXII is in hardware reset for any reason, most of the controlled interfaces fall into known states.

It is also possible for NextMove BXII to be in a state known as software reset. This is a safe operational state where only the bootloader present on NextMove BXII is running, because no valid firmware has been found. This can happen if a firmware download is cancelled before it has finished. Use WorkBench v5 to download new firmware, allowing the process to finish. This might take 1-2 minutes.

Hardware and software reset states should not be confused with the Mint keyword RESET which is used to clear axis errors.

Communications

At power up the CAN controllers will be held in reset and will have no effect on the CAN buses. If a reset occurs during the transmission of a message CAN errors are likely to occur.

Digital Outputs

All of the digital outputs are inactive on power up regardless of their polarity. They will return to the inactive state whenever a reset occurs.

Analog Outputs

All analog outputs are set to 0V by hardware during power up and will return to 0V on a reset.

Encoders

The encoder interfaces will not register any encoder input during reset. If the unit goes into reset all position data will be lost.

4.8.1 System watchdog

The system watchdog provides hardware protection in the event of a firmware or ‘C’ program malfunction. If the system watchdog is not updated, the controller will be reset.

4-22 Input / Output

MN1904

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Baldor BXII installation manual Reset states, System watchdog

Contents

MOTION CONTROL Installation ManualNextMove BXII Motion Controller 9/02Page Contents 5 Operation A Accessories 6 Troubleshooting7 Specifications Appendicesiv Contents MN1904General Information 1 General InformationMN1904 1-2General Information Safety NoticePrecautions MN19042.1 NextMove BXII features 2 Introduction2.2.1Identifying the catalog number Installed in2.2 Receiving and inspection 2.3 Units and abbreviations 2-4Introduction MN19043.1 Introduction 3 Basic Installation3.1.1 Power sources 3.1.2 PC Hardware requirements3-2Basic Installation 3.1.4 Other information needed for installation3.1.3 Tools and miscellaneous hardware MN1904See also page All dimensions shown as mm inches This completes the basic installation3.2.1 Mounting the NextMove BXII Allow additional depth to accommodate wiring4 Input / Output 4.2 Connector locations - top panel4.1 Introduction 4.3 Connector locations - front panel 4.4 Power connections 4.4.1 Power4.5 Analog I/O 4.5.1Analog inputsAIN0 Pin AIN1 Pin MN1904 4.5.2 Analog outputs Demands4-6Input / Output 4.6 Digital I/O MN1904 4.6.1 Digital inputs4-8Input / Output 4.6.2 Digital inputs MN1904 4.6.3 Digital inputs Interrupts4-10Input / Output Name 4.6.4 Digital outputsLocation Mint keyword / description4.7 Other I/O 4.7.1 Encoder interfaces - X9, X10, X114.7.2 Encoder input frequency MN1904 4.7.3 Relay and user power4-14Input / Output Description 4.7.4 RS232Pin Name NextMove BXII GND RS232RXD TXD DTE RTS CTSNextMove BXII 4.7.5 Connecting Baldor HMI Operator PanelsBaldor HMI PLC PORTMN1904 4.7.6 RS422 / RS4854-18Input / Output 4 NCNetwork slave Figure 12 - 4-wireRS485 multi-dropconnectionsNetwork master Network slaveMN1904 4.7.7 CAN connectors4-20Input / Output 4.7.8 CANopen 4.7.9 Baldor CAN4.8 Reset states 4.8.1 System watchdogEnable 4.9 Connection summary - minimum system wiringError out Host PCTable 2 - Minimum system wiring connections connectorsignal 4-24Input / Output5.1 Introduction 5.1.1 Connecting the NextMove BXII to the PC5.1.2 Installing the software 5 OperationMN1904 5.1.5 Power on checks5-2Operation 5.2 WorkBench 5.2.1 Help fileMN1904 5.2.2Starting WorkBench5-4Operation Click Scan to search for the NextMove BXII 5.3 Configuring an axis 5.3.1 Selecting a scale5.3.2Setting the drive enable output MN1904 5.3.3Testing the drive enable output5-8Operation 5.4 Testing and tuning 5.4.1 Testing the drive command output6.To remove the demand and stop the test, type 5-10OperationMN1904 STOP.05.5 An introduction to closed loop control 5-12Operation MN1904Figure 16 - The NextMove BXII servo loop MN1904Operation 5.6 Tuning an axis for current control 5.6.1 Selecting servo loop gainsThe distance depends on the scale set in MN1904 5.6.2 Underdamped response5-16Operation 5.6.3 Overdamped response Figure 18 - Overdamped responseMN1904 5.6.4 Critically damped response5-18Operation Demand position Measured position5.7 Eliminating steady-stateerrors 5.8 Tuning an axis for velocity control 5.8.1 Calculating KVELFF=10.24 Figure 20 - Correct value of KVELFF 5-22OperationMN1904 5.8.2 Adjusting KPROP 2. Click GoFigure 21 - Correct value of KPROP 5-24OperationMN1904 Demand position Measured position5.9 Digital input/output configuration 5.9.1 Digital input configurationMN1904 5.9.2 Digital output configuration5-26Operation 5.10 Saving setup information 1.In the Toolbox, click the Edit & Debug iconMN1904 5.11Loading saved information5-28Operation 6.1.2 SupportMet feature 6 Troubleshooting6.1.1 Problem diagnosis 6.1 Introduction6.2 NextMove BXII indicators 6.2.1 Status displayOffset move. The axis is performing an offset move MN1904 6.2.2 Motor control6-4Troubleshooting 6.2.3 Communication 6-6Troubleshooting MN1904Introduction 7 SpecificationsInput power 7.1.1Digital inputs 7.1.3 Analog outputs Demands7.1.4 7.1.57.1.9 CAN interfaces 7.1.7 Relay output7.1.8 Encoder interfaces Update interval7-4Specifications 7.1.11Weights and dimensions7.1.10Environmental MN1904A.1.1 Baldor CAN nodes A Accessories AA.1 Introduction MN1904 A.1.2 Encoder Splitter/Buffer boardA-2Accessories Index Page Page Index MN1904continued CommentsComment CommentsThank you for taking the time to help us CommentsMN1904 Page Europe AustraliaMexico Singapore