Baldor MN1928 installation manual Motor runs

Page 107

 

 

www.supportme.net

 

 

 

 

Symptom

Check

 

 

 

 

Motor runs

Verify that the backplane (if used) and drive are correctly grounded

 

uncontrollably when

to a common ground point.

 

controller is switched

 

 

on.

(Servo outputs only) Check that the correct encoder feedback signal

 

 

is connected to the encoder input, the encoder has power (if

 

 

required, see section 5.2.11) and is functioning correctly.

 

 

Check that the drive is connected correctly to the NextMove ES and

 

 

that with zero demand there is 0V at the drive’s demand input. See

 

 

section 6.5.1.

 

 

 

 

Motor runs

(Servo outputs only) Check that the encoder feedback signal(s) are

 

uncontrollably when

connected to the correct encoder input(s). Check the demand to the

 

controller is switched

drive is connected with the correct polarity.

 

on and servo loop

 

 

gains are applied or

Check that for a positive demand signal, a positive increase in axis

 

when a move is set

position is seen. The ENCODERMODE keyword can be used to

 

in progress. Motor

change encoder input direction. The DACMODE keyword can be

 

then stops after a

used to reverse DAC output polarity.

 

short time.

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

(Servo outputs only) Servo loop gains may be set incorrectly. See

 

control, but vibrates

sections 6.5.2 to 6.7.

 

or overshoots during

 

 

a move.

 

 

 

 

 

Motor is under

Verify that the backplane and drive are correctly grounded to a

 

control, but when

common ground point.

 

moved to a position

 

 

and then back to the

(Servo outputs only) Using an oscilloscope at the backplane

 

start it does not

connectors, check:

 

return to the same

 

 

position.

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.

 

 

 

MN1928

Troubleshooting 7-5

Image 107
Contents NextMove ES Motion Controller Page Contents Backplanes Troubleshooting Appendices General Information Precautions Safety NoticeMN1928 Introduction NextMove ES featuresIntroduction MN1928 Date InstalledReceiving and inspection Identifying the catalog numberUnits and abbreviations PhaseLocation requirements You should read all the sections in Basic InstallationIntroduction Other requirements for installation Installing the NextMove ES card96-pin edge connector Row Pin 1 96-pin connector pin assignment96-pin connector pin assignment Analog inputs Analog I/OAIN0 analog input wiring Analog output Demand0 shown Analog outputsNextMove ES ‘X1’ FlexDrive II / drive amplifier General purpose inputs Digital I/ODigital inputs Auxiliary encoder inputs DIN17 STEP, DIN18 DIR, DIN19 Z Reset input !RSTINTypical digital input wiring USRV+ DOUT0 DOUT7 Digital outputsDigital outputs DOUT8-11 DOUT8 shown DOUT8 DOUT11Relay keyword Error output Error OutDriveenableoutput keyword Globalerroroutput keywordStepper control outputs Other I/OEncoder inputs USB port Serial port Using RS232Pin RS232 name RS485 / RS422 name 96-pin Connector RS232 serial port connections Wire RS422 multi-drop connections Multidrop using RS485 / RS422RS232 cable wiring Connecting serial Baldor HMI Operator PanelsCan Can connectorBaud Rate Bus Length Can wiringOpto-isolation power requirements MaximumTypical CANopen network connections CANopenBaldor can operator panel connections Baldor canInput / Output MN1928 Drive amplifier axis Connection summary minimum system wiringConnector details for minimum system wiring shown in Figure Backplanes X10 BPL010-501 non-isolated backplanePin Name Description 96-pin Connector Analog outputs demands DIN1 Mating connector Weidmüller Omnimate BL 3.5/5 DOUT11 Stepper axes outputs DIR3+ Stepper output typical connection to a Baldor MicroFlex Pin Name Description 96-pin Power inputsEncoder input Pin RS232 name RS485/RS422 name 96-pin BPL010-502/503 backplane with opto-isolator card Backplane BPL010-502/503 connector layout Pin Name Description NextMove ES 96-pin Connector Relay connections Error relay connectionsAnalog output, DEMAND0 shown Customer power supply ground DIN15 Digital input circuit DIN16 with ‘active high’ inputs 5.1 BPL010-502 Active high inputsDIN16 Digital input circuit DIN16 with ‘active low’ inputs 5.2 BPL010-503 Active low inputsUSRV+ USR V+ USR COM 6.2 BPL010-503 NPN outputs 6.1 BPL010-502 PNP outputsDigital output circuit DOUT8-11 DOUT8 shown Stepper axes outputs Pin Name Description 96-pin Connector Stepper output typical connection to a Baldor MicroFlex Power inputs Serial port Backplanes MN1928 \start Connecting the NextMove ES to the PCInstalling WorkBench Starting the NextMove ESPreliminary checks Power on checksInstalling the USB driver Help file WorkBenchStarting WorkBench MN1928 Operation Selecting the axis type Configuring an axisSelecting a scale Setting the drive enable output 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 D20Motor control Symptom CheckCommunication Motor runs WorkBench Nodescan keyword Baldor can Input power Input voltage Digital inputs non-isolatedDigital inputs opto-isolated Unit Value TypeDigital outputs general purpose opto-isolated Digital output error output non-isolatedDigital outputs general purpose non-isolated Serial RS232/RS485 port Error relay opto-isolated backplanesEnvironmental Weights and dimensionsCan interface Specifications MN1928 Drive amplifier to NextMove ES feedback cables Feedback cablesBaldor catalog number Length Appendix MN1928 Index Index MN1928 USB Index MN1928 Comment CommentsComments MN1928 Page LT0202A02
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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.

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