Mitsubishi Electric CNC Specifications And Instruction Manual page 88

Direct Drive Motor Specifications and Instruction Manual
7 Setup
Initial setup procedures for direct-drive motor (when using MBA405W)
When using MBA405W, perform the initial setup for the direct-drive motor by following the steps in the flow diagram
below.
Connect the battery.
Perform under an
emergency stop state.
Turn the drive unit and NC power ON
again if the alarm 25 occurs.
Change the parameter setting value for
SV122(Kvp) to "+300" and NC power ON
again (Alarm 16 is released).
Alarm 16 is detected.
Check the "drive LED" and "encoder
type" displayed on the following NC
monitor.
- "Diagn"→"Drv mon"
→"Drive unit display"
- "Diagn"→"Drv mon"
→"Motor end encoder"
Do not leave the emergency stop
state for a long time.
Drive LED displays "Cx"
during DC excitation.
Check the "ALFT gain" displayed on the
following NC monitor.
- "Diagn"→"Drv mon"→"ALFT gain"
Repeat [15] to [18] 5 times, and if difference
of the magnetic pole shift amounts is 1000
data or bigger, change the parameter
settings of SV061(DA1NO) and SV062
(DA2NO) by "+10%". Repeat [15] to [18]
5 times again and comfirm in the same way.
Start the initial setup
[1] NC power ON
[2] Set the incremental control
-NC system side parameter "#2049 type = 0"
[3] Set the parameters related to the initial magnetic pole estimate
- SV121(Kpp) = 33
- SV122(Kvp) = Standard VGN1
- SV123(Kvi) = 1364
- SV 124(ILMTmp) = 100[%]
[4] NC power ON again
[5] Release the emergency stop
(start initial magnetic pole estimate)
[6] Drive LED
No
displays "dx"? (terminate initial
magnetic pole estimate)
Yes
[7] Drive the direct-drive motor with handle feed, etc.
→Check that the Z-phase has been passed
- "Control output2/bit0" changes from "0" to "1"
on NC monitor display
[8] Emergency stop
[9] Set the parameter for enabling the absolute
position control
- NC system side parameter "#2049 type ≠0"
Release the parameters related to the initial
magnetic pole estimate
- SV121(Kpp) to SV124(ILMTmp) = 0
[10] NC power ON again
[11] Encoder type is
MBA405W, and A3 on the
drive LED is OFF?
Yes
[12] Set the current limit
- SV013(ILMT) = 100
[13] Set the magnetic pole adjustment (DC excitation) mode
- SV034(SSF3)/bit4(dcd) = 1
[14] Set the DC excitation-related parameters
- SV061(DA1NO) =10[%]
- SV062(DA2NO) = 10[%]
- SV063(DA1MPY) = 1000[ms]
[15] Release the emergency stop (start DC excitation mode)
[16] Does the axis (direct-drive motor)
carry out a reciprocation operation once?
(about ±10° and 20°)
Yes
[17] Check the AFLT gain (magnetic pole shift
amount) on the drive monitor screen
[18] Turn ON the emergency stop
(terminate DC excitation)
[19] Set the average of magnetic pole shift amounts
to SV028(MSFT)
63
NC monitor displays "MB*405W"
at initial setup.
Set the standard VGN1 in SV122(Kvp)
depending on the load inertia scale.
- Refer to "8.1.1 Speed loop gain"
Drive LED displays "Cx" during initial
magnetic pole estimate.
Check the NC monitor display for encoder type
<"MB*405W" display>
- Check whether Z-phase is passed
<"MBE405W" display>
- Check whether the correct encoder is used
Check the setting for encoder
installation polarity if an alarm
occurs.
-SV017(SPEC)/bit0(mdir)
= 0(Forward polarity)
⇔
1(Reverse polarity)
Make sure that the control is
under an emergency stop.
No
Change the parameter setting value of
SV061(DA1NO) and SV062(DA2NO) by
"+10%" after the emergency stop
No
[20] Release the magnetic pole adjustment
( DC excitation )
- SV034(SSF3)/bit4(dcd) = 0
- SV061(DA1NO) to SV063(DA1MPY) = 0
[21] NC power ON again
[22] Release the current limit
- SV013(ILMT) = Current limit value for each motor
Initial setup completed
mode
IB-1501068-C