AUMA SA Series - Safe ESD Reaction to Forced Torque Seating in End Position; Safe ESD Reaction to No Seating

Table 21: Proof test checklist
✎
Configuration
Safe OPENING (Safe ESD in direction OPEN)
✎
Configuration
Safe CLOSING (Safe ESD in direction CLOSE)
 ✓
1. Is actuator in mid-position or at sufficient distance
from the end positions?
 ✓
1. Is actuator in mid-position or at sufficient distance
from the end positions?
 ✓
2. Safe ESDa and Safe ESDb input signals
set to 0 V (low)?
 ✓
2. Safe ESDa and Safe ESDb input signals
set to 0 V (low)?
 Yes
 No
➥ Check actuator reaction:
Safety operation initiated?
 Yes
 No
➥ Check actuator reaction:
Safety operation initiated?
 Yes
 No
3. Wait until actuator limit switch trips.
➥ Check actuator reaction:
Safety operation stopped when reaching limit switch
OPEN?
 Yes
 No
3. Wait until actuator limit switch trips.
➥ Check actuator reaction:
Safety operation stopped when reaching limit switch
CLOSED?
 ✓
4. Safe ESDa and Safe ESDb input signals
set to +24 V DC (high)?
 ✓
4. Safe ESDa and Safe ESDb input signals
set to +24 V DC (high)?
☒ ✓ = 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.
11.2.7. Safe ESD reaction to "Forced torque seating in end position" (torque after limit evaluation)
Proof test checklist for version or configuration:
●
Actuator with electromechanical control unit
●
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)
●
"SIL seating" configuration
= “Forced torque seating in end position”
Also valid for combination of SafeESD with Safe STOP.
Table 22: Proof test checklist
✎
Configuration
Safe OPENING (Safe ESD in direction OPEN)
✎
Configuration
Safe CLOSING (Safe ESD in direction CLOSE)
 ✓
1. Actuator operated to end position OPEN via
standard controls (until limit switch in end position
trips)?
 ✓
1. Actuator operated to end position CLOSED via
standard controls (until limit switch in end position
trips)?
 ✓
2. Switch compartment opened?
 ✓
2. Switch compartment opened?
 ✓
3. + 4. Torque switch OPEN operated and safety op-
eration initiated for operated switch?
(Test button [2] turned in direction of the TSO arrow?)
Safe ESDa and Safe ESDb input signals set
to 0 V (low)?
 ✓
3. + 4. Torque switch CLOSE operated and safety
operation initiated for operated switch?
(Test button [1] turned in direction of the TSC arrow?)
Safe ESDa and Safe ESDb input signals set
to 0 V (low)?
 Yes
 No
➥ Check actuator reaction:
Safety operation not initiated?
 Yes
 No
➥ Check actuator reaction:
Safety operation not initiated?
 Yes
 No
➥ Check SIL module signal behaviour:
No SIL fault signal?
SIL failure output (NC contact) = open)
 Yes
 No
➥ Check SIL module signal behaviour:
No SIL fault signal?
SIL failure output (NC contact) = open)
 ✓
5. Safe ESDa and Safe ESDb input signals
set to +24 V DC (high)?
 ✓
5. Safe ESDa and Safe ESDb input signals
set to +24 V DC (high)?
 ✓
6. Switch compartment closed?
 ✓
6. 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.
11.2.8. Safe ESD reaction to "No seating"
Proof test checklist for version or configuration:
●
Actuator with electromechanical control unit:
44
Multi-turn actuators
Checklists SA 07.2 – SA 16.2/SAR 07.2 – SAR 16.2