System blocks
Block descriptions
ID 441692.01
STÖBER ANTRIEBSTECHNIK
89
60 Cam with prediction (limited positioning range)
Description
The block indicates whether the drive is within a certain position range (cam).
The block performs the calculation when it is enabled by signal level 1 on the
input
En
. When the drive is located on or between the positions on
CamStrt
and
CamEnd
, signal 1 is output to the output
Out
. The position used for the
comparison is calculated from the actual position on
ActPosi
. The "difference"
position between the current and the last cycle is added to the actual position.
The difference is weighted by the value on
T-Pre
. The value on
T-Pre
is divided
by the PLC cycle time. Weighting takes place after this.
The memory behavior of the output
Out
is set on the input
Mode
. When
Mode
has signal level 0 and the block enable is disabled, signal 0 is written to
Out
.
When
Mode
has signal 1 and the block enable is disabled, the last state of
Out
is saved.
When the input
Reset
has a high signal, signal 0 is output to the output
regardless of other input signals.
The current position after execution of the block is output to
ActPosO
.
NOTE
The smaller of the values on
CamStrt
and
CamEnd
is used internally as the cam
start!
Inputs
No. Name
Datatype Scaling
Description
1
En
B –
Block enable.
0 = block not enabled.
1 = block is enabled and will be calculated.
2
ActPosi
P64
Skal.-Fktn. 8 / 19
Current position of the drive
3
CamStrt
P64
Skal.-Fktn. 8 / 19
Start of the cam
4
CamEnd
P64
Skal.-Fktn. 8 / 19
End of the cam
5
T-Pre
I32
1LSB = 1us
Time specification for weighting the pre-trigger, 1 LSB = 1 µs
6
Mode
U8 –
Memory behavior of output
Out
.
0 = if block enable withdrawn,
Out
= 0.
1 = if block enable withdrawn, the last state of
Out
is saved.
8
Reset
B –
Reset input.
0 = no effects on output signal.
1 =
Out
is set to signal 0.
Outputs
No. Name
Datatype Scaling
Description
7
Out
B
–
Range indication. 1 = within the cam
9
ActPosO
P64
Skal.-Fktn. 8 / 19
Current position after block was executed
Summary of Contents for POSIDRIVE MDS 5000
Page 1: ...from V 5 6 D 02 2012 DE DESCRIPTION 5th generation of STÖBER inverters Blocks ...
Page 12: ...Organization blocks Block descriptions ID 441692 01 www stoeber de 11 STÖBER ANTRIEBSTECHNIK ...
Page 22: ...System blocks Block descriptions ID 441692 01 www stoeber de 21 STÖBER ANTRIEBSTECHNIK ...
Page 322: ...Standard blocks Block descriptions ID 441692 01 www stoeber de 321 STÖBER ANTRIEBSTECHNIK ...
Page 588: ...Notes Block descriptions ID 441692 01 www stoeber de STÖBER ANTRIEBSTECHNIK ...