Circuit Examples - ABB AC500-S Safety User Manual

AC500-S safety modules
DX581-S safety digital input/output module > Circuit examples
No. Name
6 Output channel con-
figuration
7 Detection (internal
output channel test)
* Available only for "2 channel equivalent" and "2 channel antivalent" configuration

3.4.7 Circuit examples

Examples of electrical connections and reachable SIL (IEC 61508), SILCL (IEC 62061) and PL
(ISO 13849-1) with DX581-S module are presented below. Note, that electrical connections pre-
sented for DI581-S safety input channels are also valid for DX581-S safety input channels.
96
Values
"Not used", "Used"
"Off", "On"
NOTICE!
Whenever DC = High is used in the circuit examples with safety digital inputs,
the following measure from ISO 13849-1
Cross monitoring of input signals and intermediate results within the logic (L),
and temporal and logical software monitor of the program flow and detection of
static faults and short circuits (for multiple I/O).
Whenever DC = Medium is used in the circuit examples with safety digital
inputs, any of the measures for input devices with DC ³ 90 % can be used from
Ä [10].
ISO 13849-1
NOTICE!
Whenever DC = High is used in the circuit examples with safety digital outputs,
the following measure from ISO 13849-1
module: Cross monitoring of output signals and intermediate results within the
logic (L) and temporal and logical software monitor of the program flow and
detection of static faults and short circuits (for multiple I/O).
Whenever DC = Medium is used in the circuit examples with safety digital out-
puts, any of the measures for output devices with DC ³ 90 % can be used from
Ä [10].
ISO 13849-1
DANGER!
The reachable SILCL (IEC 62061), SIL (IEC 61508) and PL (ISO 13849-1)
levels for safety outputs of DX581-S module are only valid if the parameter
Detection = "On". If the parameter Detection = "Off" then contact ABB technical
support to obtain proper reachable SILCL, SIL and PL levels.
3ADR025091M0208, 12, en_US
Default
"Not used"
"On"
Ä [10] is used with DX581-S module:
Ä [10] is used with the DX581-S
2020/06/19