Baldor MN1928 installation manual WorkBench

Page 93

Symptom

Check

 

 

Motor runs uncontrollably

(Servo outputs only) Check that the encoder feedback

when controller is switched

signal(s) are connected to the correct encoder input(s).

on and servo loop gains are

Check the demand to the drive is connected with the correct

applied or when a move is

polarity.

set in progress. Motor then

 

stops after a short time.

Check that for a positive demand signal, a positive increase

 

in axis position is seen. The ENCODERMODE keyword can

 

be used to change encoder input direction. The DACMODE

 

keyword can be used to reverse DAC output polarity.

 

Check that the maximum following error is set to a

 

reasonable value. For setting up purposes, following error

 

detection may be disabled by setting FOLERRORMODE = 0.

 

 

Motor is under control, but

(Servo outputs only) Servo loop gains may be set

vibrates or overshoots

incorrectly. See sections 6.5.2 to 6.7.

during a move.

 

 

 

Motor is under control, but

Verify that the backplane and drive are correctly grounded to

when moved to a position

a common earth point.

and then back to the start it

 

does not return to the same

(Servo outputs only) Using an oscilloscope at the backplane

position.

connectors, check:

 

H all encoder channels are free from electrical noise;

 

H they are correctly wired to the controller;

 

H when the motor turns, the two square wave signals are

 

90 degrees out of phase. Also check the complement

 

signals.

 

Ensure that the encoder cable uses shielded twisted pair

 

cable, with the outer shield connected at both ends and the

 

inner shields connected only at the NextMove ES end.

 

(Stepper outputs only) The motor is not maintaining

 

synchronization with the NextMove ES drive output signals

 

due to excessive acceleration, speed or load demands on

 

the motor.

 

Check that the acceleration, speed and load are within the

 

capabilities of the motor.

 

 

7.2.5 WorkBench v5

Symptom

Check

 

 

The Spy window does not

The system refresh has been disabled. Go to the Tools,

update

Options menu item, select the System tab and then

 

choose a System Refresh Rate (500ms is recommended).

 

 

MN1928

Troubleshooting 7-5

Image 93
Contents NextMove ES Motion Controller Page Contents Backplanes Troubleshooting Appendices General Information Precautions Safety NoticeMN1928 Introduction NextMove ES featuresIntroduction MN1928 Installed Receiving and inspectionIdentifying the catalog number Units and abbreviations PhaseYou should read all the sections in Basic Installation IntroductionLocation requirements Other requirements for installation Installing the NextMove ES card96-pin edge connector 1 96-pin connector pin assignment 96-pin connector pin assignmentRow Pin Analog inputs Analog I/OAIN0 analog input wiring Analog output Demand0 shown Analog outputsDigital I/O Digital inputsGeneral purpose inputs Reset input !RSTIN Typical digital input wiringAuxiliary encoder inputs DIN17 STEP, DIN18 DIR, DIN19 Z DOUT0 DOUT7 Digital outputsDigital outputs DOUT8-11 DOUT8 shown DOUT8 DOUT11Error output Error Out Stepper control outputs Other I/OEncoder inputs Pin Name Description 96-pin Connector 3 RS232 serial connectionLocation Pin Name Description USB connectionTypical can network connections Can connectionCANopen and Baldor can JP1 This will connect an internal terminating resistorDrive amplifier axis Connection summary minimum system wiringConnector details for minimum system wiring shown in Figure Backplanes BPL010-501 non-isolated backplane Analog outputs demands DIN1 Mating connector Weidmüller Omnimate BL 3.5/5 Digital output DOUT11 C22 Stepper axes outputs DIR3+ Power inputs Encoder inputPin Name Description 96-pin 13 RS232 serial communication BPL010-502/503 backplane with opto-isolator card Pin Name Description NextMove ES 96-pin Connector Relay connections Error relay connectionsAnalog output, DEMAND0 shown Customer power supply ground DIN15 USR V+ Digital input circuit DIN16 with ‘active low’ inputs 5.1 BPL010-502 Active high inputsUSR COM 6.1 BPL010-502 PNP outputs Digital output circuit DOUT8-11 DOUT8 shown Stepper axes outputs Pin Name Description 96-pin Connector Power inputs 13 RS232 serial communication Input / Output MN1928 Installing WorkBench Connecting the NextMove ES to the PCStarting the NextMove ES \startPower on checks Installing the USB driverPreliminary checks Help file WorkBenchStarting WorkBench MN1928 Operation Selecting a scale Configuring an axisSetting the drive enable output If you are going to use the error output, drag Testing the drive enable output Testing the output Stepper axis testingTesting the demand output Servo axis testing and tuningTORQUE.4=-5 An introduction to closed loop control Summary, the following rules can be used as a guide NextMove ES servo loop Selecting servo loop gains Servo axis tuning for current controlMN1928 Operation Underdamped response Underdamped responseOverdamped response Overdamped responseCritically damped ideal response Critically damped responseServo axis eliminating steady-state errors Calculating Kvelff Servo axis tuning for velocity controlKvelff Correct value of Kvelff Adjusting Kprop Correct value of Kprop Digital input configuration Digital input/output configurationDigital output configuration Saving setup information Loading saved information SupportMe feature Problem diagnosisStatus display NextMove ES indicatorsD3 yellow Surface mount LEDs D3, D4, D16 and D20Symptom Check CommunicationMotor control WorkBench Troubleshooting MN1928 Input power Digital inputs opto-isolated Digital inputs non-isolatedInput voltage Maximum Minimum High LowDigital output error output non-isolated Digital outputs general purpose non-isolatedDigital outputs general purpose opto-isolated Can interface Error relay opto-isolated backplanesEnvironmental Weights and dimensionsSpecifications MN1928 MN1928 Appendix A-1 Axis renumberingAppendix MN1928 Index Index MN1928 Underdamped response, 6-18 Units and abbreviations Index MN1928 Comment CommentsComments MN1928 Page Baldor Electric Company Box Ft. Smith, AR
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MN1928 specifications

The Baldor MN1928 is a highly regarded motor designed for a variety of industrial applications, known for its durability and efficiency. This motor is part of Baldor’s extensive range of products, which are engineered to meet the demands of heavy-duty operations.

One of the key features of the Baldor MN1928 is its robust construction. Built with high-quality materials, this motor is designed to withstand harsh environmental conditions often found in industrial settings. The steel frame is not only resilient, but it also enhances the motor's cooling capabilities, enabling it to perform effectively over extended periods.

The MN1928 is equipped with advanced technologies that optimize its performance. One notable technology is the use of high-efficiency induction motor design. This reduces energy consumption significantly and contributes to lower operational costs. The motor is also designed with a continuous duty rating, making it capable of running for long hours without compromising its functionality or lifespan.

In terms of characteristics, the Baldor MN1928 features a reliable ball bearing design, which minimizes friction and wear, ensuring smoother operation and increased reliability. With a horsepower rating that suits a range of applications, it provides the necessary torque and speed to power various machinery effectively. The multi-voltage design allows for versatile installation options, accommodating different electrical systems while ensuring efficient performance.

Another important characteristic of this motor is its ease of maintenance. The design allows for straightforward access to components, making it simple for technicians to perform routine checks and maintenance. This is particularly beneficial in industrial settings where downtime can be costly.

Safety is also a priority in the design of the Baldor MN1928. Equipped with thermal overload protection, it prevents overheating, reducing the risk of damage caused by excessive temperatures during operation. Additionally, the motor complies with various industry standards, ensuring safe operation within diverse environments.

In summary, the Baldor MN1928 stands out as a reliable choice for industrial applications, offering a combination of durability, efficiency, and advanced technology. Its robust construction, high-efficiency design, and safety features make it a preferred option for many enterprises seeking dependable motor solutions.