Safety Faults - Siemens SINUMERIK 840D sl Function Manual

Safety Functions Integrated in the Drive
4.4 Commissioning the SH and SBC functions
Table 4-1 Commissioning the SH and SBC functions, continued
No. Parameter
12 –
13 –
4.4.3

Safety faults

Stop response
When Safety Integrated faults occur, the following stop responses can be initiated:
Table 4-2
Stop
response
STOP A
cannot be
acknowl-
edged
STOP A
STOP F
4-62
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 03.2006 Edition
Description and comments
Carry-out a POWER ON
After commissioning, a POWER ON reset must be carried-out.
Carry-out an acceptance test and create a test certificate
Once safety commissioning has been completed, the commissioning engineer
must carry-out an acceptance test for the enabled safety monitoring functions.
The results of the acceptance test must be documented in an acceptance cer-
tificate (see Section 4.6 "Acceptance test and acceptance certificate").
Safety Integrated stop responses
Action
Initiates safe pulse can-
cellation via the shutdown
path of the relevant moni- path of the relevant moni-
toring channel.
For operation with SBC:
The brake is closed.
STOP A corresponds to stop Category 0 to EN 60204–1.
With STOP A, the motor is directly brought into a zero torque condition using
the safe standstill (SH) function.
A motor at standstill cannot be started again accidentally.
A moving motor "coasts" to standstill. This can be prevented by using external
braking mechanisms, e.g. armature short-circuit, holding or operational brake.
When STOP A is present safe standstill (SH) is effective.
Transition to STOP A.
STOP F is permanently assigned to the crosswise data comparison (CDCs).
In this way, errors are detected in the monitoring channels.
After STOP F, STOP A is initiated.
When STOP A is present safe standstill (SH) is effective.
Effect Initiated when
For all safety faults that cannot
be acknowledged with pulse
The motor
cancellation.
coasts to a
standstill or standstill or
For all safety faults that can be
is braked by
acknowledged with pulse can-
the holding
cellation.
brake.
As a subsequent response to
STOP F.
If an error occurs in the cross-
None
wise data comparison.
© Siemens AG, 2006. All rights reserved
03.06