Check Safe Esd Reaction To "Forced Torque Seating In End Position; Check Safe Esd Reaction For No Seating" (No Evaluation Of Limit And Torque) - AUMA SQ 05.2 Manual

Part-turn actuators
with AC 01.2-SIL/ACExC 01.2-SIL
8.4.8. Check Safe ESD reaction to Forced torque seating in end position" (torque after limit evaluation)
Configuration
Test procedure
Test sequence
8.4.9.

Check Safe ESD reaction for no seating" (no evaluation of limit and torque)

Configuration
This test is required for the following versions or configurations:
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)
Configuration of "SIL seating"
= "Forced torque seating in end position"
(Safety operation is stopped by tripping the torque switches (overload protection).
Provided that the respective limit switch tripped before).
During the test, the reaction of the Safe ESD function to torque switch tripping (after
limit switch tripping) during safety operation is checked.
The red test buttons [1] and [2] of the control unit are used for the test. These can
be used to operate the switches manually.
Figure 16: Electromechanical control unit
Turn test button [1] in direction of the TSC arrow: Torque switch CLOSE trips.
Turn test button [2] in direction of the TSO arrow: Torque switch OPEN trips.
1. Use standard controls to operate actuator into the end position of the con-
figured Safe ESD function (until limit switch in end position trips).
2. Open the switch compartment
Check seating via torque and limit switches:
3. Operate torque switches and hold activated.
For "Safe CLOSING" (Safe ESD in direction CLOSE) configuration:
Turn test button [1] in direction of the TSC arrow.
For ""Safe OPENING" (Safe ESD in direction OPEN) configuration:
Turn test button [2] in direction of the TSO arrow:
4. Start safety operation while torque switch is operated:
Set
Safe ESDa
The safety function reaction to the torque switch and limit switch signals is
correct if:
- Safety operation is not started.
- No SIL fault signal is issued via the
5. Set Safe ESDa and
test.
6. Close switch compartment.
This test is required for the following versions or configurations:
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)
and input signals to 0 V (low).
Safe ESDb
SIL fault
Safe ESDb input signals to +24 V DC (high) after the
Tests and maintenance
output.
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