Siemens SINUMERIK 828D Function Manual

B2: Acceleration
4.2 Functions
Basic Functions
250 Function Manual, 09/2011, 6FC5397-0BP40-2BA0
Substitute characteristic curve with linear path sections
Limitation to this value is applied if the programmed path velocity is greater than that at which 15 % of the
maximum acceleration capacity is still available (v
15%a
). Consequently, 15 % of the maximum acceleration
capacity/motor torque always remains available, whatever the machining situation.
Figure 4-10 Substitute path characteristic curve: Linear path
a
ers
: Substitute characteristic curve constant acceleration
a
15%
: Minimal constant acceleration
a
15%
= 0.15 * (a
max
- a
red
) + a
red
v
ers
: Substitute characteristic curve velocity
v
prog
: Programmed velocity
v
15%a
: Velocity at a
15%
/RFNHG]RQH
Y
D
Y
SURJ
D

D
HUV
D
UHG
D
PD[
Y
UHG
Y
PD[
D
Y

Siemens SINUMERIK 828D Specifications

General

Control Type	CNC
Operating System	Windows Embedded
Processor	Intel Atom
Display	10.4" color TFT display
Interfaces	Ethernet, USB
Programming	ShopMill, ShopTurn
Operation Panel Size	10.4"
Protection Class	IP65
PLC Memory	2 MB
Spindle Capacity	4 spindles
Hard Drive	CompactFlash