ABB AC500-S Safety User Manual page 282

Configuration and programming
AC500-S libraries > SafetyBlocks_PLCopen_AC500_v22.lib
4.6.4.17 SF_OutControl
Standards Requirements
IEC 60204-1, 9.2.2: Stop functions: Stop function categories; Category 0 - stopping by immediate removal
Ed. 5.0:2003 of power to the machine actuators (i.e. an uncontrolled stop ...)
9.2.5.2: Start: The start of an operation shall be possible only when all of the relevant safety
functions and/or protective measures are in place and are operational except for conditions
as described in 9.2.4. Suitable interlocks shall be provided to secure correct sequential
starting.
EN 954-1:1996 5.2: Stop function; stop initiated by protective devices shall put the machine in a safe state ...
and shall have priority over a stop for operational reasons.
5.5: Start and restart; automatic restart only if a hazardous situation cannot exist.
5.11: Fluctuations in energy levels; in case of loss of energy supply, provide or initiate out-
puts to maintain a safe state.
ISO 12100-2:2003 4.11.4: Restart following power failure/spontaneous restart
EN 954-1:1996 5.4 Manual reset
Control of a safety output with a signal from the functional application and a safety signal with
optional startup inhibits.
The SF_OutControl FB is an output driver for a safety output.
The safety output is controlled via S_OutControl using a signal from the functional application
(ProcessControl to control the process) and a signal from the safety application (S_SafeControl
to control the safety function).
Optional conditions for process control (ProcessControl):
● An additional function start (ProcessControl FALSE => TRUE) is required following block
activation or feedback of the safe signal (S_SafeControl). A static TRUE signal at Process-
Control does not set S_OutControl to TRUE.
● An additional function start (ProcessControl FALSE => TRUE) is not required following block
activation or feedback of the safe signal (S_SafeControl). A static TRUE signal at Process-
Control sets S_OutControl to TRUE if the other conditions have been met.
Optional startup inhibits:
● Startup inhibit after function block activation.
● Startup inhibit after interruption of the protective device.
The StaticControl, S_StartReset and S_AutoReset inputs shall only be activated if it is ensured
that no hazardous situation can occur when the PES is started.
Table 66: FB name: SF_OutControl
Name Data type
VAR_INPUT
Activate BOOL
282
Initial value Description, parameter values
FALSE Ä Table 16 "General input parameters" on page 192
3ADR025091M0208, 12, en_US 2020/06/19