Selecting/De-Selecting Safe Operating Stop - Siemens SINUMERIK 840D Description Of Functions

11.03
Fig. 3-12
Prerequisites The following prerequisites must be fulfilled (refer to Chapter 2.8, "System
requirements"):
•
•
3.4.1

Selecting/de-selecting safe operating stop

The safe operating stop function is selected via the following SGEs:
Selecting SBH
Table 3-17
© Siemens AG 2003 All Rights Reserved
SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
Note
The size of the standstill tolerance window should be based on the standard
standstill (zero speed) monitoring limit and should exceed it slightly in either
direction. The standard monitoring functions in the control system are
otherwise rendered ineffective.
|v|
Standstill tolerance
Standstill tolerance
The option and the function enable in the axis-specific machine data must
be present
The SGEs "SBH/SG de-selection" and "SBH de-selection" must be
supplied in the NCK and drive monitoring channels.
Selecting/de-selecting SBH
SGE
SBH/SG SBH
de-selection de-selection
= 1 x
= 0 = 0
= 0 = 1
Note:
840D from SW4.2
x The signal state is as required
1) For SINUMERIK 840D, from SW4.2 onwards, the SG limit value SG2 and SG4 can
be finely graduated using the SG override (refer to Chapter 3.5.6, "Override for safely-
reduced speed". The active SG stage is displayed via SGA "SGA active bit 0" and
"SGA active bit 1".
3 Safety-Related Functions
3.4 Safe operating stop (SBH)
= =
SGA
SBH Meaning
1)
active
0 SBH and SG are de-selected
1 SBH is selected
0 SG is selected (refer to Chapter 3, "Safely-
reduced speed (SG)"),
Still_01.DS4
s
(Actual value)
3-87