Siemens SINUMERIK 840D sl Function Manual page 292

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Data Description
8.1 Machine data for SINUMERIK 840D sl
36955
MD number
Default value: 0.0
Change becomes effective after: POWER ON
Data type: DOUBLE
Significance:
Special cases, errors,...
corresponds with ...
36956
MD number
Default value: 0.1
Change becomes effective after: POWER ON
Data type: DOUBLE
Significance:
Special cases, errors,...
corresponds with ...
36957
MD number
Default value: 0.1
Change becomes effective after: POWER ON
Data type: DOUBLE
Significance:
Special cases, errors,...
8-292
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition
$MA_SAFE_STOP_SWITCH_TIME_F
Transition time STOP F to STOP B
Min. input limit: 0
Protection level: 7/2
Time after which, for a STOP F with active monitoring functions, a change is made to
STOP B.
The parameterized value must be selected as low as possible.
During this time, e.g., another braking response can be activated using synchronous ac-
tions.
The changeover is also made if a STOP C/D/E occurs during this time.
$MA_SAFE_PULSE_DISABLE_DELA Y
Delay time, pulse cancellation
Min. input limit: 0
Protection level: 7/2
For a STOP B, the axis is braked along the current limit with speed setpoint 0. After the
delay time defined in this data, the braking mode changes to STOP A for pulse cancellation.
The parameterized value must be selected as low as possible.
The pulses are cancelled earlier than defined in this machine data if the condition for the
pulse cancellation is present via MD 36960: $MA_SAFE_STANDSTILL_VELO_TOL or
MD 36620: $MA_SERVO_DISABLE_DELAY_TIME.
If the timer in this machine data is set to zero, then an immediate transition is made from
STOP B to a STOP A (immediate pulse cancellation).
MD 36960: $MA_SAFE_STANDSTILL_VELO_TOL
MD 36620: $MA_SERVO_DISABLE_DELAY_TIME
MD 36060: $MA_STANDSTILL_VELO_TOL
$MA_SAFE_PULSE_DIS_CHECK_TIME
Time to check pulse cancellation
Min. input limit: 0
Protection level: 7/2
This machine data specifies the time when, after pulse cancellation has been requested,
the pulses must be actually cancelled.
The time that elapses between setting the SGA "enable pulses" and detecting the SGE
"pulses cancelled status" may not exceed the time limit set in this data.
If this time is exceeded, a STOP A is initiated.
Max. input limit: 600.
Unit: s
Max. input limit: 600
Unit: s
Max. input limit: 10
Unit: s
© Siemens AG 2008 All Rights Reserved
05.08

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