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TB112 Rev2 Mitsubishi a500 Inverter ATC Settings
Overview
This technical bulletin describes how to set the pa rameters for the Mitsubishi a500 series inverter an d
applies to ATC2 and current PLC programs The previ ous version of this document applied to the ATC1
PLC program and contained instructions on using vec tor mode
Inverter Connections
R S T รข 3 Phase Power In
U V W รข Spindle Motor Power Out
STF Spindle Forward
STR Spindle Reverse
RES รข Spindle Reset
RH รข Spindle Orient
SD Input Common
2 0 10VDC Analog Input
5 0 10VDC Common
A Inverter Fault Normally Open
C Inverter Fault Common
FU Orient Complete
RUN Zero Speed
SE Inverter Output Common
P P1 Braking Resistor
FR A5AP Add on Card Connection
5V รข 5VDC from 5th axis encoder input and 5VDC to spindle encoder
SG รข 5VDC common from 5th axis encoder input and 5VDC common to spindle
encoder
PA1 Channel A to 5
th axis encoder input and channel A from spindle enco der
PA2 Channel A\ to 5th axis encoder input and channel A\ from spindle enc oder
PB1 Channel B to 5th axis encoder input and channel B from spindle enco der
PB2 Channel B\ to 5th axis encoder input and channel B\ from spindle enc oder
PC1 Channel Z to 5th axis encoder input and channel Z from spindle enco der
PC2 Channel Z\ to 5th axis encoder input and channel Z\ from spindle enc oder
Mitsubishi Inverter Parameter Settings
Model FR A520 7 5k NA and FR A5AP Orientation Control/PLG Feedback optional card
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 pa rameter 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 meta
llic sound at low speeds
73 0 5V/0 10V Selection 0
79 Operation Mode Selection 2 External Operation Mode prevents change of para
meters 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 Comm
anded speed should be zero M3S0
903 Freq setting voltage gain Set according to procedure in inverter manual Comm
anded 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 rel
ation to the
orientation position
357 In position zone 24
358 Orientation Torque 2 รข Provides greater torque during orientation
359 PLG rotation direction 1 or 0 depending upon ho w 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
199 Reset to factory defaults 9999
Programming Mitsubishi A500 Inverter
Note 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 diffi culty
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 n umber 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] Set parameter 78 to 1 or 79 to 4 in order to set the other parameters
9 Use the up or down arrow key to edit the paramet er value
10 Press and hold [SET] 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 Set parameter 78 back to a 2 or 79 to 2 otherwise
you won't be able to get back to OPND mode
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 th e 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 frequen cy Parameters 902 and 903 will automatically display
the voltage being sent from the PLC when they are s et To do this follow the procedure below
Setting Parameters 902 and 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 [SET] for 1 5 seconds A beep sou nds
5 Issue an M3S0 command in MDI
6 Repeat step 4
7 Change to parameter 903
8 The value displayed should be the same as parame ter 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 arrow
keys to set it at 200Hz
9 Repeat step 4
10 Issue an M3S6000 in MDI and make sure the spind le override is at 100%
11 You will notice the display is indicating the v oltage without the implied decimal point A 100
corresponds to 10 0V for example It is normal to s ee the value change slightly say from 101 to 102
12 Repeat step 4
13 Engage E stop and change the inverter to OPND m ode
ATC Override
When using the ATC1/2 PLC program the technician i s required to use an override to perform certain M
functions when using them from MDI To perform an M 80 or M81 from MDI the operator must press and
hold the AUX12 key on the jog panel prior to enteri ng MDI The key must continue to be pressed while t he
custom M functions are used The Aux 12 key is not labeled but can be seen on the picture above and is
marked with the * directly above the MPG button
Orienting the Spindle for Proper ATC Use
Parameter # 356 tells the inverter where to positio n the spindle by encoder counts to properly orient for
use with an ATC
1 Home the machine
2 Bring the carousel in with an M80 while holding AUX12
3 Slowly jog the Z axis down and rotate the spindl e by hand until the "half key" is lined up with the notch
in the ATC carousel rack
4 From the run menu on the inverter press [MODE] until the LED beside MON lights up
5 Press [SET] to change monitor display 2 times for encoder counts
6 Record this number and enter this number in para meter 356
ATC Installation Checklist
Once all the Mitsubishi parameters are correct you must ensure that the relevant ATC parameters
are set on the Centroid control
"Umbrella" type tool changers
รยท 1 Power up and home
รยท 2 Air Pressure regulator set at ~7kg/cm^2
รยท 3 Air Pressure switch Range is 90psig
รยท 4 Air Pressure switch Differential is 20 25psig
รยท 5 Check head mounted unclamp switch for operation with spindle off Remove any tool
รยท 6 Enter manual spindle mode & start spindle at slo w speed check that unclamp switch doesn't
work
รยท 7 Execute M80* carousel should come in Adjust speed and cushio ning if needed
รยท 8 Execute M81* carousel should go out Adjust speed and cushion ing if needed
รยท 9 Execute M15* drawbar should unclamp and air blow will come on Adjust airflow if needed
รยท 10 Execute M16* drawbar will clamp and air blow goes off
รยท 11 Execute M22 Z axis moves to tool change position
รยท 12 Execute M21 Z axis moves home
รยท 13 Execute M22 Z axis moves to tool change position
รยท 14 Execute M19 Spindle will orient Check to make sure it is al igned
รยท 15 Execute M80* to bring carousel in Check alignment with ATC tab s
รยท 16 Execute M81* to retract carousel
รยท 17 Execute M5 to turn off orient Move spindle by hand
รยท 18 Check the Tool Index + and functions Reverse motor operation if needed
รยท 19 Use the tool index keys to align tool #1
รยท 20 Execute an M18 verify "Tool #1 set in ATC" message in the messag e window
รยท 21 Execute a T2M6
รยท 22 Verify ATC changed to tool #2 รข Press Alt + K to verify carousel at Bin 2
* AUX12 must be pressed
"Swing Arm" type tool changers
รยท 1 Power up and home
รยท 2 Air Pressure regulator set at ~7kg/cm^2
รยท 3 Air Pressure switch Range is 90psig
รยท 4 Air Pressure switch Differential is 20 25psig
รยท 5 Check head mounted unclamp switch for operation with spindle off Remove any tool
รยท 6 Enter manual spindle mode & start spindle at slo w speed check that unclamp switch doesn't
work
รยท 7 Execute M22 Z axis moves to tool change position
รยท 8 Execute M21 Z axis moves home
รยท 9 Execute M22 Z axis moves to tool change position
รยท 10 Execute M19 Spindle will orient Check to make sure it is al igned
รยท 11 Execute M5 to turn off orient Move spindle by hand
รยท 12 Check the Tool Index + and functions Reverse motor operation if needed
รยท 13 Use the tool index keys to align tool #1
รยท 14 Execute an M18 verify "Tool #1 set in ATC" message in the messag e window
รยท 15 Execute a T2M6
รยท 16 Verify ATC changed to tool #2
Document History
Rev2 Created on 2015 04 29 by #270
Rev1 Created on 2009 12 10 by #240