Start-Up
SINUMERIK 802S base line
4-39
Start-Up
Number MD Identifier Default Value
linear circular
32000 MA_MAX_AX_VELO 10,000.0 mm/min 27.7 r.p.m.
32300 MA_MAX_AX_ACCEL 1 m/s
2
2.77 rev’s/s
2
35220 MA_ACCEL_REDUCTION_
SPEED_POINT
1
35230 MA_ACCEL_REDUCTION_
FACTOR
0
* : The selection of the value depends on the motor characteristic.
t
v
a
v
MAX_ACCEL_REDUCTION_TYPE = 0 (constant)
Characteristic a(v)
ared
amax
vred
vmax
vmax
vred
Characteristic v(t)
Fig. 4-7 Axial acceleration and velocity characteristics
Velocities:
v
max
: MA_MAX_AX_VELO
v
red
: MA_ACCEL_REDUCTION_SPEED_POINT x MA_MAX_AX_VELO
Accelerations:
a
max
:MA_MAX_AX_ACCEL
a
red
: (1 – MA_ACCEL_REDUCTION_FACTOR) x MA_MAX_AX_ACCEL
Service display of the axis drive behavior
SINUMERIK 802S base line provides two possibilities to evaluate the axis
drive behavor:
Servo Trace
To provide axis service, the Servo Trace function is integrated in the Diagnosis
menu, which can be used for graphical representation of the axis setpoint
speed.
The Trace function is selected in the Diagnosis/Service display/Servo Trace
operating area (cf. User’s Guide “Operation..”).
Axis value as an analog value
For service purposes, the axis setpoint value required for the stepper motor
drive can additionally be provided as an analog value. Using a storage
oscilloscope, this feature can be used to display the axis drive behavior when
starting up individual axes.
To output the analog axis setpoint, with SINUMERIK 802S base line, the D/A
converter of the spindle is used.
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