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Home > Setting Mitsubishi Inverter A500 Series- ATC  
 

 Mitsubishi Inverter ATC Settings

Overview:

This Technical bulletin describes how to set the parameters for the Mitsubishi 500 series inverter, and is current as of November, 2004 and applies to ATC2 programs. The previous version of this document applied to the ATC1 version of plc programs and contained instructions on using vector mode.

Other Issues:

When using the ATC1/2 PLC program, the technician is required to use an override to perform certain M functions when using them from MDI. To perform an M80 or M81 from MDI the operator must press and hold the Aux 12 key on the jog panel. The Aux 12 key is not labeled, but can be seen on the picture below. The Aux 12 key is the key marked with the * directly above the MPG button and to the right of the coolant buttons, shown in the photo below.
Jog Panel showing location of Aux 12.


When setting up a Mitsubishi inverter for the first time, set parameter # 18 FIRST - This allows you to change Parameter # 1 and set the others without difficulty.

To program the Mitsubishi A500 parameters:

1. Press "mode" until you see OPnd on the screen.

2. Press the up arrow key. You will see PU.

3. Press "mode" until you see Pr.. on the screen.

4. Press set. You should see P.000 with the first zero flashing.

5. Use the up or down arrow keys to set the first number of the parameter.

6. Press set. The next zero should be flashing.

7. Repeat steps 3 and 4 to set the parameter number.

8. Press set.

9. Use the up or down arrow key to edit the parameter value.

10. Press and hold the set button for 1.5 seconds to set the value. - Wait for blink

11. Either press set and use the up or down arrow keys to step through the parameters in sequential order, or press mode and start from step 1 to set other parameters.

12. Continue until all the parameters have been set.

13. Press "mode" until you see PU on the screen.

14. Press the down arrow key. You will see OPND.

Special Parameters:

Parameters 902 and 903 are slightly different than the rest of the parameters, 902 and 903 have two values in each parameter. Parameter 902 contains the Low Frequency (in HZ) and the corresponding voltage from the PLC for that frequency. Parameter 903 contains the High Frequency (in HZ) and the corresponding voltage from the PLC for that frequency. Parameters 902 and 903 will automatically display the voltage being sent from the PLC when they are set. To do this, follow the procedure below.

Setting Parameter 902 and Parameter 903:

1. Put the inverter in PU mode.

2. Change to parameter 902 in the programming mode.

3. The value displayed should be 0.00 HZ. If it is not, use the arrow keys to adjust it to 0.

4. Press and hold the [SET] key for 1.5 seconds. A beep sounds.

5. Issue an M3S0 command at MDI.

6. Press and hold the [SET] key for 1.5 seconds. A beep sounds.

7. Change to parameter 903.

8. The value displayed should be the same as parameter 1, 18, or 20, i.e., the maximum output frequency. For the typical 6000RPM setting, it would be 200.0 HZ. The default setting is at 60Hz, so use the arrows keys to set it at 200Hz.

9. Press and hold the [SET] key for 1.5 seconds. A beep sounds.

10. Issue an M3S6000 in MDI and make sure the spindle override is at 100%.

11. You will notice the display is indicating the voltage, without the implied decimal point. A 100 corresponds to 10.0V for example. It is normal to see the value change slightly, say from 101 to 102. Press and hold the [SET] key for 1.5 seconds. A beep sounds.

12. Engage E-stop and change the inverter to OPND mode.



Setting The Spindle For Proper ATC Use:

Parameter # 356 tells the inverter where to position the spindle by encoder counts to properly orient for use with an ATC. To determine the proper encoder count to enter:

1. Home the machine.

2. Bring the carousel in with M80 (While holding Aux 12).

3. Slowly jog the Z-axis down and rotate the spindle by hand until the "half key" is lined up with the notch in the ATC carousel rack.

4. At the inverter, from the run menu:

Press "mode" till the LED beside MON lights up

Press "set" to change monitor display (two times for encoder counts)

Record this number and enter it in parameter # 356

Mitsubishi Inverter ATC Settings
Model: FR-A520-7.5k-NA and FR-A5AP Orientation Control/PLG Feedback optioncard

Parameter

Name

Setting

18

High-speed maximum freq.

200 Hz - must set this first to change parameter 1

1

Maximum Frequency

200Hz (4-pole@6000RPM) - see parameter 18

2

Minimum Frequency

0 Hz

3

Base Frequency

60 Hz

7

Acceleration Time

2-5 sec

8

Deceleration Time

2-5 sec

13

Starting Frequency

0 Hz

20

Accel/decel reference frequency

Same as parameter 1

52

DU/PU main display data selection

19 - to monitor encoder position

72

PWM frequency selection

10 - eliminates the metallic sound at low speeds

73

0-5V/0-10V Selection

0

79

Operation Mode Selection

2 - External Operation Mode prevents change of parameters. Set to 1 to change parameters.

80

Motor Capacity

9999

81

Number of Poles

9999

182

RH terminal function

22 - Orientation Start

190

RUN terminal

100 - for negative logic output

194

FU terminal function

27 - Orientation Complete

240

Soft-PWM setting

1 - allows p72 to be set >5

902

Freq. setting voltage bias

Set according to procedure in inverter manual. Commanded speed should be zero (M3S0)

903

Freq. setting voltage gain

Set according to procedure in inverter manual. Commanded speed should be max (M3Smax)

Option Card Settings

350

Stop position command selection

0 - Internal stop position

355

Dynamic Braking width

12

356

Internal stop position

Depends upon the spindle encoder index pulse in relation to the orientation position.

357

In-position zone

24

358

Orientation Torque

2 – Provides greater torque during orientation

359

PLG rotation direction

1 or 0 depending upon how A/B encoder channel wired

362

Position loop gain

1

369

PLG pulse count

1024, but depends upon encoder cpr

370

Control mode selection

1 - V/F control with PLG feedback

 

ATC INSTALLATION CHECK LIST

Umbrella” type tool changers:

  • 1. Power-up and home.

  • 2. Air Pressure regulator set at ~7kg/cm^2.

  • 3. Air Pressure switch Range is 90psig.

  • 4. Air Pressure switch Differential is 20-25psig

  • 5. Check head mounted unclamp switch for operation with spindle off. Remove any tool.

  • 6. Enter manual spindle mode & start spindle at slow speed, check that unclamp switch doesn't work.

  • 7. Execute M80* - carousel should come in. Adjust speed and cushioning if needed.

  • 8. Execute M81* - carousel should go out. Adjust speed and cushioning if needed.

  • 9. Execute M15* - drawbar should unclamp and air blow will come on. Adjust airflow if needed.

  • 10. Execute M16* - drawbar will clamp and air blow goes off

  • 11. Execute M22 - Z axis moves to tool change position

  • 12. Execute M21 - Z axis moves home

  • 13. Execute M22 - Z axis moves to tool change position

  • 14. Execute M19 - Spindle will orient. Check to make sure it is aligned.

  • 15. Execute M80* to bring carousel in. Check alignment with ATC tabs.

  • 16. Execute M81* to retract carousel.

  • 17. Execute M5 to turn off orient. Move spindle by hand.

  • 18. Check the Tool Index + and - functions. Reverse motor operation if needed.

  • 19. Use the tool index keys to align tool #1.

  • 20. Execute an M18, verify "Tool #1 set in ATC" message in CNC7 message window

  • 21. Execute a T2M6.

  • 22. Verify ATC changed to tool #2 – Press Alt + K to verify carousel at Bin 2

* - Aux 12 must be pressed.

Once all the Mitsubishi parameters are correct, you must ensure that the relevant ATC parameters are set on the Centroid control.



Swing Arm” type tool changers:

  • 1. Power-up and home.

  • 2. Air Pressure regulator set at ~7kg/cm^2.

  • 3. Air Pressure switch Range is 90psig.

  • 4. Air Pressure switch Differential is 20-25psig

  • 5. Check head mounted unclamp switch for operation with spindle off. Remove any tool.

  • 6. Enter manual spindle mode & start spindle at slow speed, check that unclamp switch doesn't work.

  • 7. Execute M22 - Z axis moves to tool change position

  • 8. Execute M21 - Z axis moves home

  • 9. Execute M22 - Z axis moves to tool change position

  • 10. Execute M19 - Spindle will orient. Check to make sure it is aligned.

  • 11. Execute M5 to turn off orient. Move spindle by hand.

  • 12. Check the Tool Index + and - functions. Reverse motor operation if needed.

  • 13. Use the tool index keys to align tool #1.

  • 14. Execute an M18, verify "Tool #1 set in ATC" message in CNC7 message window

  • 15. Execute a T2M6.

  • 16. Verify ATC changed to tool #2

Once all the Mitsubishi parameters are correct, you must ensure that the relevant ATC parameters are set on the Centroid control.


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