Baldor MN1940 Microstep Resolution Select Msel, Msel value, Hold Current Delay Time Hcdt

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Microstep Resolution Select (MSEL)

The MSEL parameter specifies the microstep resolution of the DSM. The following table lists valid MSEL parameter settings:

MSEL value:

Steps per revolution

 

MSEL value:

Steps per revolution

 

 

 

 

 

1

200

 

64

12800

 

 

 

 

 

2

400

 

100

20000

 

 

 

 

 

4

800

 

108

21600

 

 

 

 

(1 microstep = 1 arc minute)

 

 

 

 

 

5

1000

 

125

25000

 

 

 

 

 

8

1600

 

127

25400

 

 

 

 

(1 microstep = 0.001 mm)

 

 

 

 

 

10

2000

 

128

25600

 

 

 

 

 

16

3200

 

180

36000 (1 microstep = 0.01°)

 

 

 

 

 

25

5000

 

200

40000

 

 

 

 

 

32

6400

 

250

50000

 

 

 

 

 

50

10000

 

256

51200

 

 

 

 

 

Motor Run Current (MRC)

The Motor Run Current (MRC) parameter sets the motor run current to a percentage of the full output current of the DSM driver section.

Hold Current Delay Time (HCDT)

The HCDT parameter sets the delay time between the last clock pulse and the application of the holding current.

Motor Hold Current (MHC)

The MHC parameter sets the motor hold current as a percentage of the full output current of the driver. If the hold current is set to 0, the output circuitry of the driver section will disable when the hold current setting becomes active. Following the last step clock pulse, the hold current setting becomes active after the period specified by HCDT.

Direction Override (DIR)

The DIR parameter changes the motor direction relative to the direction input signal, adapting the direction of the DSM to operate as your system requires.

Factory button

The Factory button resets each parameter in the software to factory default values. Click Set to apply these values.

Recall! and Upgrade! menu options

The Recall! option uploads the existing parameter settings from the DSM.

The Upgrade! option (if present) must not be used! It currently has no purpose and will erase the firmware on the DSM, leaving it inoperable. If you have accidentally selected the Upgrade! option, please contact Baldor customer support.

MN1940

Operation 5-5

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Contents DSM S-Series Integrated Stepper Motor / Driver Page Contents Troubleshooting General Information Precautions Safety NoticeMN1940 Introduction DSM S-Series integrated motor and driverModel ‘F’ ‘P’ ‘M’ Option availabilityReceiving and inspection InstalledIdentifying the catalog number Units and abbreviations PhaseIntroduction You should read all the sections in Basic InstallationLocation requirements Dimensions Weight Dimensions DSMS17Mounting the DSM Screw thread limitation DSMS17 DSMS23x-3B Dimensions DSMS23DSMS23x-1B DSMS23x-2BMotor Dimensions Dimensions DSMS34Securing DSM cables Other requirements for installation Basic connections SPI interface ‘P’ connectorMotor power input Power wire ratings Wire sizesCable length Minimum Step clock orange flying lead Enable brown flying leadLogic inputs Logic input descriptionsInput timing Sinking input configurations Sinking / sourcing input configurationDIR0 SPI interface SPI connectorPin Name Description SPI signal descriptions X12 Connection summary minimum system wiringNextMove ESB Installing the USB driver Connecting the DSM to the PCInstalling the virtual COM port driver Determining the virtual COM port number Installing Baldor SPI Interface\BaldorSPIInterface.exe Starting the controller and DSM Baldor SPI Interface Configuration parametersMotion settings view Name Range Units DefaultMsel value Microstep Resolution Select MselHold Current Delay Time Hcdt Recall! and Upgrade! menu optionsClock Type 2.2 I/O settings viewClock IOF Further support Problem diagnosisCommunication problems Symptom CheckMotor control problems Maximum supply voltage +48VDC +75VDC Input powerInput current maximum DSMS17x-2A DSMS17x-1ADetent torque Rotor inertiaDSMS17x-3A DSMS23x-2B DSMS23x-1BDSMS23x-3B DSMS34x-1B Motor speed & torque DSMS34DSMS34x-2B DSMS34x-3B Digital inputs Specifications MN1940 Index Index MN1940 Comment CommentsComments MN1940 Page LT0227A02