Siemens SINUMERIK 840D

4 Data Descriptions 11.03
4.1 Machine data
© Siemens AG 2003 All Rights Reserved
4-216 SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
36901
MD number
$MA_SAFE_FUNCTION_ENABLE
Enable safety-related functions
840D
Default: 0 Min. input value: 0 Max. input value:
FF 03, FF E3 (from SW4.2)
Change becomes effective after POWER ON: Protection level (R/W) 7/2 Unit: Hexadecimal
Data type: DWORD Applies from SW 3.4
Meaning The functions for safe operation can be enabled for one axis/spindle with this data.
It is only possible to enable - on an axis-specific basis - as many axes/spindles for safe
operation as have been enabled by the global option.
If one of the bits from bit 1 is set, then bit 0 must also be set. This is because for a STOP
C, D, E the control switches into the safe operating stop. This condition is checked (if
there is an error, configuration Alarm 27033 is output).
The more partial functions that are set, then the more computing time the safe functions
require.
High byte Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 19 Bit 9 Bit 8
Enable safe cams
SN4 - SN4 + SN3 - SN3 + SN2 - SN2 + SN1 - SN1 +
Low byte Bit7 Bit6 Bit5 Bit4 Bit 3 Bit 2 Bit 1 Bit 0
Enable (from SW4.2) SW 6.3 From
SW 5.2
Reserve
d
Enable
Cam
synchron
ization
External
STOPs
Override
for
safely-
reduced
speed
Enable
external
ESR
activatio
n
Enable
act.
value
synchr.
2nd
encoder
system
0 SE SBH/
SG
Special cases, errors If bit 1 or a higher bit is set, then bit 0 must also be set since the control system switches
to a safe operational stop in response to STOP C, D or E (a configuration alarm is output
if an error is detected).
If an insufficient number of axes/spindles have been enabled for safe operation using the
global option, then this data may be overwritten with the value 0000 during run-up
Corresponds with … Global option
References Refer to Chapter 2, "Enabling safety-related functions"