Safe Stop Function Irrespective Of The Selected Control Unit - AUMA SQ 05.2 Manual

Part-turn actuators
with AC 01.2-SIL/ACExC 01.2-SIL
Information
Table 29: Checklist 9
Configuration
Safe CLOSING (Safe ESD in direction CLOSE)
1. Is actuator in mid-position or at sufficient distance
from the end positions?
2. Switch compartment opened?
Safe ESDa Safe ESDb
3. and
set to 0 V (low)?
➥ Check actuator reaction:
Safety operation initiated?
4. Limit switch CLOSE operated?
(Test button [1] turned in direction of the LSC arrow?)
➥ Check actuator reaction:
Safety operation not stopped?
Safe ESDa Safe ESDb
5.1 and
set to +24 V DC (high) prior to reaching the end pos-
ition?
5.2 Actuator operated via local controls or from RE-
MOTE to end position OPEN and then to end position
CLOSED?
5.3 Actuator operated to mid-position or at sufficient
distance from the end positions?
Safe ESDa Safe ESDb
6. and
set to 0 V (low)?
7. Torque switch CLOSE operated?
(Test button [1] turned in direction of the TSC arrow?)
➥ Check actuator reaction:
Safety operation not stopped?
Display illuminated in red?
➥ Check SIL module signal behaviour:
SIL fault signal?
SIL failure
output (NC contact) = closed)
8. Safe ESDa and Safe ESDb
set to +24 V DC (high) prior to reaching the end pos-
ition?
9. Torque fault of standard controls acknowledged?
10. Switch compartment closed?
☒ ✓ = Executed
☒ Yes = Condition met
☒ No = Condition not met
If the answer to one of the questions is no, the safety instrumented system must be checked.
11.2.9. Safe STOP function – irrespective of the selected control unit
Actuators with electromechanical control unit or actuator with electronic control
unit and limit switches.
One of the following safety functions:
- Safe ESD function "Safe CLOSING" (Safe ESD in direction CLOSE)
- Safe ESD function "Safe OPENING" (Safe ESD in direction OPEN)
Configuration of "SIL seating"
= "no seating"
Also valid for combination of Safe ESD with Safe STOP.
For version of electronic control unit with limit switches, steps 6
✎
⎕ ✓
⎕ ✓
⎕ ✓
input signals
⎕ Yes
⎕ No
⎕ ✓
⎕ Yes
⎕ No
⎕ ✓
input signals
⎕ ✓
⎕ ✓
⎕ ✓
input signals
⎕ ✓
⎕ Yes
⎕ No
⎕ Yes
⎕ No
⎕ ✓
input signals
⎕ ✓
⎕ ✓
Proof test checklist for version or configuration:
"SIL function" = "Safe STOP OPEN/CLOSE" (safe stop) configuration.
Also valid for combination of Safe ESD with Safe STOP.
Configuration
Safe OPENING (Safe ESD in direction OPEN)
1. Is actuator in mid-position or at sufficient distance
from the end positions?
2. Switch compartment opened?
Safe ESDa Safe ESDb
3. and
set to 0 V (low)?
➥ Check actuator reaction:
Safety operation initiated?
4. Limit switch OPEN operated?
(Test button [2] turned in direction of the LSO arrow?)
➥ Check actuator reaction:
Safety operation not stopped?
Safe ESDa Safe ESDb
5.1 and
set to +24 V DC (high) prior to reaching the end pos-
ition?
5.2 Actuator operated via local controls or from RE-
MOTE to end position OPEN and then to end position
CLOSED?
5.3 Actuator operated to mid-position or at sufficient
distance from the end positions?
Safe ESDa Safe ESDb
6. and
set to 0 V (low)?
7. Torque switch OPEN operated?
(Test button [2] turned in direction of the TSO arrow?)
➥ Check actuator reaction:
Safety operation not stopped?
Display illuminated in red?
➥ Check SIL module signal behaviour:
SIL fault signal?
SIL failure
output (NC contact) = closed)
8. Safe ESDa and Safe ESDb
set to +24 V DC (high) prior to reaching the end pos-
ition?
9. Torque fault of standard controls acknowledged?
10. Switch compartment closed?
Checklists
9 are obsolete.
✎
⎕ ✓
⎕ ✓
⎕ ✓
input signals
⎕ Yes
⎕ No
⎕ ✓
⎕ Yes
⎕ No
⎕ ✓
input signals
⎕ ✓
⎕ ✓
⎕ ✓
input signals
⎕ ✓
⎕ Yes
⎕ No
⎕ Yes
⎕ No
⎕ ✓
input signals
⎕ ✓
⎕ ✓
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