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MDS-D2/DH2 Series Instruction Manual
6.1 Adjustment Procedures for Each Control
6.1.11 Spindle Cutting Withstand Level Improvement
Conventionally, the spindle rotation speed was slowed down due to heavy cutting that exceeds the spindle output
characteristics, and this caused the alarm (Excessive error 52, Overload command 51) to stop the machining.
This function enables setting of the dropping speed allowable value by parameter. As long as the speed is the set value
or higher, machining can be executed within the output characteristics without being stopped by the alarm.
Even when the parameter setting value is the normal value of 0, the standard value of 85 is applied. This can improve the
efficiency of heavy cutting (feed per revolution).
If excessive speed dropping occurs and the speed exceeds the allowable range, the excessive speed deviation alarm 23
is output to reduce the damage to the machine.
【#13096】 SP096 SDW Speed slowdown allowable width
When the spindle slows down due to multiple cutting, set the processable speed as percentage
against the NC command speed.
If the speed reduces below the tolerable range, the alarm 23 (Excessive speed error) will occur.
E.g.] When set to 90 [%]
If S1000 is commanded, the speed reduced by 900r/min (=1000r/min × 90%) is the allowable
lower limit. Thus if the spindle speed reduces to 100r/min or below, the alarm will occur.
When "0" is set, the magnification is the same as when "85" is set. When set to "-1", the allowable
width will be disabled.
---Setting range---
-1,0 to 100(%)
0
0
0