Siemens SINUMERIK 840D Description Of Functions

11.03 3 Safety-Related Functions
3.5 Safely-reduced speed (SG)
© Siemens AG 2003 All Rights Reserved
SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
3-101
The active speed limit value (SG 1, 2, 3 or 4) is selected via SGEs "SG
selection bits 1 and 0". The desired override is selected by combining SGEs
"Override selection bits 3, 2, 1 and 0". The override is only valid for the speed
limit value for SG2 and SG4.
Table 3-26 Selecting SG override values for safely-reduced speeds
SGE
SG
Selection
Bit 1
SG
Selection
Bit0
SG
Override
Selection
Bit 3
SG
Override
Selection
Bit 2
SG
Override
Selection
Bit 1
SG
Override
Selection
Bit 0
Meaning
= 0 = 0 x x x x Speed limit value for SG1 active
= 0 = 1 = 0 = 0 = 0 = 0 Speed limit value for SG2 active
with override 0
- " - = 0 = 0 = 0 = 1 ... with override 1
- " - = 0 = 0 = 1 = 0 ... with override 2
- " - = 0 = 0 = 1 = 1 ... with override 3
- " - = 0 = 1 = 0 = 0 ... with override 4
- " - = 0 = 1 = 0 = 1 ... with override 5
- " - = 0 = 1 = 1 = 0 ... with override 6
- " - = 0 = 1 = 1 = 1 ... with override 7
- " - = 1 = 0 = 0 = 0 ... with override 8
- " - = 1 = 0 = 0 = 1 ... with override 9
- " - = 1 = 0 = 1 = 0 ... with override 10
- " - = 1 = 0 = 1 = 1 ... with override 11
- " - = 1 = 1 = 0 = 0 ... with override 12
- " - = 1 = 1 = 0 = 1 ... with override 13
- " - = 1 = 1 = 1 = 0 ... with override 14
- " - = 1 = 1 = 1 = 1 ... with override 15
= 1 = 0 x x x x Speed limit value for SG3 active
= 1 = 1 = 0 = 0 = 0 = 0 Speed limit value for SG4 active
with override 0
- " - = 0 = 0 = 0 = 1 ... with override 1
- " - = 0 = 0 = 1 = 0 ... with override 2
- " - = 0 = 0 = 1 = 1 ... with override 3
- " - = 0 = 1 = 0 = 0 ... with override 4
- " - = 0 = 1 = 0 = 1 ... with override 5
- " - = 0 = 1 = 1 = 0 ... with override 6
- " - = 0 = 1 = 1 = 1 ... with override 7
- " - = 1 = 0 = 0 = 0 ... with override 8
- " - = 1 = 0 = 0 = 1 ... with override 9
- " - = 1 = 0 = 1 = 0 ... with override 10
- " - = 1 = 0 = 1 = 1 ... with override 11
- " - = 1 = 1 = 0 = 0 ... with override 12
- " - = 1 = 1 = 0 = 1 ... with override 13
- " - = 1 = 1 = 1 = 0 ... with override 14
- " - = 1 = 1 = 1 = 1 ... with override 15
x: Signal status is optional since override values are not effective for SG1 and SG3
NCK SGEs (override selection bits 3, 2, 1, 0) are configured using the following
machine data:
Selecting SG
overrides
Configuring
NCK SGEs

Siemens SINUMERIK 840D Specifications

General

Series	SINUMERIK 840D
Axes	Up to 31
Channels	Up to 10
Operating System	Windows-based
Power Supply	24 V DC
Control Unit Type	CNC
Interface	Ethernet, PROFIBUS
Display	TFT color display
Interpolation	Spline
PLC	Integrated PLC
Data Storage	CompactFlash, USB