Mitsubishi MELDAS HS Series Specifications And Instruction Manual page 99

<Setting and adjustment methods>
1. Validate the extended function. (Set sv035: SSF4, bit7 (eram) to 1.)
2. Confirm that SHG control is being used. The collision detection function is valid only during
SHG control.
3. Measure the unbalance torque, and set in the torque offset (SV03: TOF). Refer to the section
"8-3-4 (2) Unbalance torque compensation" for details on measuring the unbalance torque.
4. Measure the frictional torque, and set in the frictional torque (SV045: TRUB). Refer to the
section "8-3-4-(1) Lost motion compensation" for details on measuring the frictional torque.
5. Set the estimated torque gain (SV059: TCNV) with the following method.
Set sv035: SSF5, bit 15 (clt) for the axis to be adjusted to 1.
Repeatedly move the axis to be adjusted in both directions at the maximum rapid traverse
rate.
Observe the MPOF display value on the NC unit's [I/F Diagnosis/Servo Monitor] screen, and
continue operation until the display value stabilizes.
Once the display value stabilizes, set that value as the estimated torque gain (SV059: TCNV).
6. If the acceleration/deceleration time is short and the current is easily saturated, set
SV035.bit15(cl2n) to 1, and ignore the collision detection method 2.
7. Set the collision detection level.
Feed Detection level setting
G0
G1 SV060×clG1 (SV035)
1. The SHG control must be validated to use the collision detection function or
2. When measuring the estimated torque gain, if the unbalance torque
POINT
3. Set the detection level with an allowance to avoid incorrect detections.
4. When SV060 is set to 0, all collision detection functions will be invalidated.
Chapter 8 Adjustment
First set SV060: TLEV = 100, and carry out no-load operation at the
maximum rapid traverse feed rate. If an alarm does not occur, lower the
setting by 10, and if an alarm occurs, raise the setting by 20. Set a value that
SV060
is 1.5 times the limit value where the alarm does not occur.
If SV034.mon is set to 7, the maximum disturbance torque will appear on the
NC servo monitor, so adjust using this value as a reference.
The detection level for G1 is set as an integer-fold of the G0 detection level.
Calculate the maximum cutting load, and adjust the SV035.clG1 setting value
so that the detection level is larger than the maximum cutting load.
to carry out load inertia measurement operation.
(SV032) and frictional torque (SV045) setting values are changed, the
measurement results will change. The unbalance torque and frictional
torque must be set as accurately as possible to carry out accurate
measurement.
8–28
Explanation