Position ID 1 is generally an impermissible/unavailable position range and its bar code
tape cannot be used because the 0 mm position, which is not permitted in this safety
system, is located within it. For this reason, speed ID 1 (standstill) has been assigned
here. The same applies to position ID 6 since its position range is beyond the maximum
bar code position that is actually being used.
WARNING
There is a risk of death or serious injury if the protective device is not working effec‐
tively.
b
Assign speed ID 1 (standstill) to impermissible position ranges.
7.3.6
Configuring safe cam (SCA)
In the speed-position-profile, the value of the
Position CAM
output can be defined for
each position range. This allows this output to be used to implement electronic cams.
Activated position cams are displayed in green.
Permitted position ranges must be configured as position cams. The position CAM out‐
put of the
Position Monitor
function block is set to logic High as long as the current posi‐
tion is within the permitted position range. If a position falls outside of this range, the
position CAM output is set to logic Low.
WARNING
There is a risk of death or serious injury if the protective device is not working effec‐
tively.
b
Do not configure position ranges as position cams if they are not permitted.
There are further configuration options with the safe cam function. For example, ranges
can be defined at the end positions, within which movement is only possible in the
direction of the permitted position range. This is shown in the following figure:
Figure 11: Safe cam setting range
7
CONFIGURATION
42
O P E R A T I N G I N S T R U C T I O N S | Safe Linear Positioning
8020941/12O9/2019-08-05 | SICK
Subject to change without notice
