Mitsubishi Electric CNC Specifications And Instruction Manual page 84

Direct Drive Motor Specifications and Instruction Manual
7 Setup
Initial setup procedures for direct-drive motor (DC excitation function)
Perform the initial setup for the direct-drive motor by following the steps in the flow diagram below.
Perform under an
emergency stop state.
Do not leave the emergency
stop state for a long time.
Drive LED displays "Cx"
during DC excitation.
[7] Note down the AFLT gain (magnetic pole shift
[8] Emergency stop (terminate DC excitation mode)
[15] Drive the axis (direct-drive motor) with handle
- SV013(ILMT) = Current limit value for each motor
Start the initial setup
[1] NC power ON
[2] Set the current limit
- SV013(ILMT) =100
[3] Set the DC excitation-related parameters
- SV061(DA1NO) =10[%]
- SV062(DA2NO) = 10[%]
- SV063(DA1MPY) = 1000[ms]
[4] Set DC excitation mode
- SV034(SSF3)/bit4(dcd) = 1
[5] Release the emergency stop
(start DC excitation mode)
[6] The axis (direct-drive motor)
reciprocates one time?
(about ±10° and 20°)
Yes
amount) on the drive monitor screen
[9] Repeat [5] to [8] 5 times
[10] The variation in the
AFLT gain (magnetic pole shift
amount) is "1000" or less?
Yes
[11] Set the average value of magnetic
pole shift amounts to SV028(MSFT).
[12] Release the DC excitation mode
- SV034(SSF3)/bit4(dcd) = 0
[13] NC power ON again
[14] Release the emergency stop
feed for one rotation
Magnification: minimum pulse
[16] Any alarm occurs?
Yes
[17] Release the current limit
Initial setup completed
Change the parameters
SV061(DA1NO) and SV062(DA2NO)
after the emergency stop
- SV061(DA1NO) = +10[%]
- SV062(DA2NO) = +10[%]
No
No
Overshooting occurs
during the axis
(direct-drive motor)
movement?
Yes
Change the setting for encoder installation polarity
- SV017(SPEC)/bit0(mdir)
= 0 (Forward polarity) 1 (Reverse polarity)
⇔
There is no need to change the magnetic
pole shift amount even if the setting for
encoder installation polarity is changed.
No
The installation polarity between the
direct-drive motor and encoder may be
reverse if the alarm 3E, 51, or 52 occurs
at operation check.
59
Change the parameters
SV061(DA1NO) and SV062(DA2NO)
after the emergency stop
<If overshooting occurs during the first axis
movement>
- SV061(DA1NO) = -5[%]
<If overshooting occurs during the last axis
movement>
- SV062(DA2NO) = -5[%]
No
IB-1501068-C