Siemens SINUMERIK 840Di sl - Page 419

NC Commissioning with HMI Advanced
11.5 Axes and spindles
Manual
Commissioning Manual, 05/2008, 6FC5397–4CP10–4BA0
419
Checking the trim
Incorrect speed setpoint matching has a negative impact on the real loop gain of the axis.
To check speed setpoint matching it is necessary for a defined traverse velocity to compare
the actual following error with the desired following error that should be set if speed setpoint
matching is correct.
7UDYHUVHUDWH
0'0$B326&75/B*$,1
'HVLUHGIROORZLQJHUURU
● Desired following error [ mm ]
● Traversing velocity [ m/min ]
● MD32200 $MA_POSCTRL_GAIN (KV factor) [(m/min)/mm]
The actual following error is shown in the axis-specific service data:
HMI Advanced:
Operating area switchover > Diagnosis > Service displays > Service axis/spindle
Machine data
Table 11-33 Speed setpoint matching: Machine data
Number Name Name/remarks
Axisspecific ($MA_ ... )
32250 RATED_OUTVAL Rated output voltage
32260 RATED_VELO[n] Rated motor speed
References:
/FB/ Function Manual - Basic Functions; G2 Velocities, Setpoint/Actual Value Systems,
Control, Section "Velocities, Traversing Ranges, Accuracies"