Figure 20 shows the functional graphs of the ETSL-Formula for normal mode, moving up; normal mode, mov-
ing down; and “decel test mode up”, moving up as examples
Figure 20: ETSL-Curves
When the permitted ETSL-speed is exceeded, OC opens. OC will be kept open until stand still is reached and
held for 1s. After this the ETSL-safety function resets automatically and OC close.
13.2.3.1 Actuator and Braking element for ETSL
The OC is the actuator for ETSL.
The OC is integrated in the safety circuit 10.4.4
Therefore, the machine brake is normally the braking element for ETSL.
13.2.4 Door Bridging
There are two kinds of door bridging: “door bridging levelling„ and “door bridging re-levelling”.
If the conditions for “door bridging levelling” or for “door bridging re-levelling” are fulfilled, SR(1/2) closes
(door circuit is bridged). Otherwise if neither the conditions for “door bridging levelling” nor for “door bridging
re-levelling” are fulfilled SR(1/2) opens (door circuit is not bridged any longer).
0
0,5
1
1,5
2
2,5
3
3,5
4
1,5 2 2,5 3 3,5 4 4,5 5 5,5 6 6,5 7 7,5 8 8,5 9 9,5 10 10,5
Lower
Reference +
Offset_ETSL_DOWN
Position of assumptive
buffer for „decel test
mode“
Position x
Permitted
ETSL Speed
(absolute
value)
ETSL speed for moving down
(red)
ETSL speed for moving up
(blue)
ETSL speed for moving up in
Decel test mode Up
(green, dotted)
Upper
Reference
Offset_ETSL_UP
Lower
Reference
Position
Upper
Reference
Position
To Next Page
Loading...
Need help?
General
