Content Preview
TB307 Rev 0 Yaskawa Sigma7 Step and Direction Setup for Acorn CNC
Controller
Overview
This document will walk you through the process of configuring a Yaskawa Sigma7 Servopack and
Servomotor for use with a Centroid Acorn based control
The following items are needed
• Computer with the Yaskawa SigmaWin+ Ver 7 software installed
• A to Mini B type USB cable Yaskawa part number JZSP CVS06 02 E – connected between
the laptop and the Yaskawa drive you wish to setup
Servopack Configuration Process
• Launch the Yaskawa SigmaWin+ software Select the Home Icon > Start > Connect to
SERVOPACK
• You will see the following screen
192 168 0 199/public/tech/technical bulletins/TB307 odt 06/25/18 Page 1 of 9
• Ensure "USB Connection" is selected as shown above
• Select " Search for SERVOPACKS " This search must be done every time you power up the
software or connect to a different Servopack because the SigmaWin+ software remembers the
last drive that was connected to it and displays that rather than what is currently connected
• Select the drive that appears and click " Connect "
• SigmaWin+ will then open to the main screen as shown below
• Click " Menu Icon " to open the menu
• The best way to configure the Servopack is by using the Setup Wizard as highlighted above
• The “ Setup Wizard W ” window is shown below
192 168 0 199/public/tech/technical bulletins/TB307 odt 06/25/18 Page 2 of 9
• To run the setup wizard you will click on the buttons at the left of the window Starting at the
top and working down the list
• Start by clicking the " Encoder Selection " button
• Nothing is displayed in the window under " Encoder Selection " until you click on " Apply " at
the lower right corner
• The encoder type will then be shown under the Encoder Selection button
• Click " Control Mode Selection "
• Select " Position Control pulse train reference " from the drop down menu
192 168 0 199/public/tech/technical bulletins/TB307 odt 06/25/18 Page 3 of 9
• Click " Apply "
• Click " Reference Input Setting "
Note the " Control Mode Selection " setting is now highlighted in green signifying that it has
been completed
• Select " SIGN + PULSE " and click " Next "
• You will then need to select pulse configuration logic type
• Select " Negative logic " as shown below
• Click " Next "
• You will then be asked to Select the electronic gear setting method Select "Enter the
electronic gear ratio directly" as shown below
192 168 0 199/public/tech/technical bulletins/TB307 odt 06/25/18 Page 4 of 9
• Click " Next "
• You will then need to enter the gear ratio Enter 2048 on top and 1 on bottom as shown in the
image below
• Verify the "Positioning Completed Width" is set to 7 and click " Apply "
• The "Reference Input Setting" will now be green
• Click " Motor Encoder Settings "
• On the right side of the screen you will see the option “Set the dividing output according to the
electronic gear ratio” as shown below Click “ Apply ” to set the number of output pulses per
motor rotation to 2048
192 168 0 199/public/tech/technical bulletins/TB307 odt 06/25/18 Page 5 of 9
• Sometimes due to availability you may receive a servomotor with an absolute encoder instead
of an incremental encoder The wizard will detect this and allows you to set the following
option If the servomotor does have an absolute encoder installed the “ Absolute Encoder
Setting ” must be changed to “ Uses absolute encoder as an incremental encoder ” as shown
below
Note The " Absolute Encoder Setting " option is grayed out if you have an incremental encoder
• Click " Next "
• Select " Standard Setting "
• Click " Apply "
• The " Motor Encoder Settings " will now also be green
• Click " Motor Stop Method "
• Pn001 0 should be set by default to the settings in the picture below If not make sure they are
set accordingly
• Set "Servo OFF" to " 0 Stops the motor by applying DB dynamic brake "
• Set "Overtravel" to " 0 Same setting as Pn001 0 Stops the motor by applying DB or by
coasting "
• Set "G2 alarm" to " 0 Stops the motor by setting the speed reference to "0" "
192 168 0 199/public/tech/technical bulletins/TB307 odt 06/25/18 Page 6 of 9
• If the Servomotor you are setting up has a brake you will need to check the " Use the Holding
brake " option as shown below
• Click " Apply "
• " IO Signal Settings " will be greyed out and unavailable These options are now found in a
different section of the software This is one difference from older versions of the software
• click " Save/Write "
• Select " Write with a backup file " then press " Write " This will save the current
configuration and then write the current configuration to the Servopack
• Click " Finish "
• Click " Yes " when prompted to complete the Setup Wizard
• The ServoPack may have an A941 error This indicates that a reset is required to apply the
configuration changes
• To reset the Servopack you must click the " Software Reset " button in SigmaWin or remove
power from the Servopack Before clicking the “ Software Reset ” button push in the E stop
button on the control This avoids putting the control into an error state when the drive and
motor go offline
192 168 0 199/public/tech/technical bulletins/TB307 odt 06/25/18 Page 7 of 9
• Back in the main Menu Click "I/O Signal Allocation"
• First Click " Change Method " Then select " User Allocations " from the drop down menu
Click " Change/Software Reset "
• Under the Input Signal tab change " P OT " and " N OT " to " Always inactive " Do this by
double clicking the Pin Number and selecting " Always inactive " from the drop down menu
• Under the Output Signal tab change "/COIN" and "/V CMP" to "Disabled" in the drop down
menu Change "/BK" to "CN1 25 26"
192 168 0 199/public/tech/technical bulletins/TB307 odt 06/25/18 Page 8 of 9
• Click "Write" then Click "Change/Software Reset" to save these settings
• Your Yasakawa Servopack should now be configured for use with Acorn CNC controller
Connect your drive to the Acorn following the Yasakawa wiring schematic
• In the Acorn Wizard or CNC12 Set the Steps per Rev to 8192
Document History
Rev0 created 6/25/18 by 423
192 168 0 199/public/tech/technical bulletins/TB307 odt 06/25/18 Page 9 of 9