Siemens SINUMERIK 840D sl Function Manual page 114

Safety Functions Integrated in the System/Drive
6.3 Safe stops A-F
Stops A, C, D and E can also be externally selected as a function of an event via
safety-relevant inputs (SGE).
Note
Protection of personnel must be given top priority when stop responses are
configured. The objective is to stop the drives in a way that best suits the situation.
Table 6-3 Overview of stop responses
STOP Action
A Pulses are immediately
cancelled
B 0 speed setpoint is
immediately entered +
timer t started
B
<
t =0 or n
B act
n : STOP A
shutdown
C 0 speed setpoint is
immediately entered +
timer t started
C
t =0: SBH is activated
C
D Motor is braked along
the acceleration + timer
t started
D
t =0: SBH is activated
D
E Results in stopping and
retraction + timer t
started
t =0: SBH is activated
E
6-114
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 03.2006 Edition
Effect
Drive coasts down
Drive is braked along
the current limit -
transition to STOP A
Drive is braked along
the current limit
SBH active
Drive is braked as part
of a group along the
path
SBH active
Drive is braked along
the programmed
E
retraction and stopping
motion (ESR).
SBH active
Initiated in Changes
response to to
SBR/SG SH
SBH/SG SH
SG/SE SBH
SG/SE SBH
SG/SE SBH
© Siemens AG, 2006. All rights reserved
03.06
Alarm
POWER ON
POWER ON
RESET
RESET
RESET