1016 HEIDENHAIN Technical Manual MANUALplus 620
PP_SpiSpeedMax
Maximum spindle speed
D
PP_SpiEnable
Spindle enabling
0: Spindle not enabled
1: Spindle enabled
M
NN_SpiInMotion
Spindle in motion
0: Spindle not in motion
1: Spindle in motion
The operand is set if the nominal velocity of a
spindle is not equal to 0, e.g. when
- The spindle is controlled by the NC (tapping)
- It is controlled by the PLC (9000 modules for M3/
M4)
The operand is not set (not even if the above
conditions are fulfilled):
- With spindle override = 0
- PLC has withdrawn the spindle enabling
(PP_SpiEnable = 0)
M
PLC operand / Description Ty p e
The PLC program offers the following ways to detect a real movement of
the spindle:
Find the actual speed of the spindle through Module 9411 (<desired
spindle information> : 10)
Connect "NN_SpiInMotion = 0" and "NN_SpiSpeedOK = 1". This attains
the information that the spindle speed is less than 5 rpm.
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