User Agreement - Siemens SINUMERIK 840D sl Function Manual

Basics on the Safety Functions Integrated in the System/Drive
5.4 Actual value conditioning
SBH/SG is safe
from this axis
status onwards Axis status
EQN: Read the absolute value from the encoder
ERN: Reference point approach
Axis status
Check OK
SE/SN is safe
from this axis
Axis status
status onwards
Fig. 5-5 Axis states when referencing
5.4.4

User agreement

Description
With a user agreement, an appropriately authorized person confirms that the cur-
rently displayed SI actual position of an axis corresponds to the actual position at
the machine.
This can be checked by traversing the axis to a known position (e.g. a visual mark)
or the axis is adjusted/calibrated and the SI actual position is therefore compared
in the "user agreement" screen.
An axis/spindle with integrated safety functions can have the following status:
User agreement = yes, or
User agreement = no
5-90
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 03.2006 Edition
Axis not
referenced
Axis referenced
(homed)
No
User
agreement
Yes
Check not
Check, actual
OK
position/saved stop
position
Axis safely
referenced
Axis status is displayed using: Interface
signal
"reference point reached" = "0"
Interface signal
"reference point reached" =
"1"
User checks the position
User agreement (softkey)
SGA
"Axis safely referenced" = "1"
© Siemens AG, 2006. All rights reserved
03.06