Position specification
Description
relative to the current setpoint
position
distance referenced to the last setpoint position
relative to the last target posi-
tion
distance referenced to the last target position
Tab. 179 Variations of positioning mode
Relative position specifications may result in an overflow of the internally mapped position. In the
event of an overflow the parameterised reaction is executed. The reaction must be taken into account
by a higher-order controller.
In positioning mode new commands can be triggered at any time. The current command may be abor-
ted, or the new command appended in a buffer. A jerk-free switch between the PP, PV and PT profile
operating modes is possible.
Monitoring functions
The monitoring functions marked with a dot are effective in this operating mode:
Motion monitoring function status word
Bit
Code
Name
effective
0
TRX
Target window reaches position
·
1
TRV
Target window reaches velocity
·
2
TRT
Target window reaches torque
·
3
FEX
Following error position
·
4
FEV
Velocity following error
–
6
TMX
Position target area monitoring
·
7
TMV
Speed target area monitoring
·
8
TMT
Torque target area monitoring
–
9…11
–
Reserved
–
12
HLP
Hardware limit switch reached positive
·
13
HLN
Hardware limit switch reached negative
·
14
SLP
Software limit position reached positive
·
15
SLN
Software limit position reached negative
·
16
STX
Standstill monitoring position/velocity
·
17
STV
Standstill monitoring velocity
·
18
LS
Stop reached
·
Motion control
207
Festo — CMMT-ST-SW — 2019-02
Содержание CMMT-ST-SW
Страница 615: ......