AUMA AC 01.2-SIL, Руководство пользователя

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Figure 15: Electromechanical control unit
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Turn test button [1] in direction of the LSC arrow: Limit switch CLOSE trips.
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Turn test button [2] in direction of the LSO arrow: Limit switch OPEN trips.
Test sequence 1. Operate actuator in mid-position or at sufficient distance from the end positions.
2. Open the switch compartment
3. Initiate safety operation:
→
Set Safe ESDa and Safe ESDb input signals to 0 V (low).
Check seating via limit switches:
4. Operate limit switches until test is complete:
→
For “Safe CLOSING” (Safe ESD in direction CLOSE) configuration:
Turn test button [1] in direction of the LSC arrow.
→
For "“Safe OPENING” (Safe ESD in direction OPEN) configuration:
Turn test button [2] in direction of the LSO arrow.
➥ The safety function reaction to the limit switch signals is correct if safety opera-
tion is stopped.
5. Set Safe ESDa and Safe ESDb input signals to +24 V DC (high) after the
test.
6. Close switch compartment.
8.4.7. Check Safe ESD reaction to “Forced limit seating in end position” (limit evaluation) – for actuators
with electronic control unit and limit switches
Configuration
This test is required for the following versions or configurations:
●
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”
= “Forced limit seating in end position”
(safety operation is stopped by limit switch tripping)
Test procedure
During the test, the reaction of the Safe ESD function to limit switch tripping during
safety operation is checked.
During Safe ESD operation, the actuator has to stop when reaching the position set
via limit switching.
Test sequence
1. Operate actuator in mid-position or at sufficient distance from the end positions.
2. Initiate safety operation:
→
Set Safe ESDa and Safe ESDb input signals to 0 V (low).
Check seating via limit switches:
3. Wait until actuator has reached the limit end position and has activated the
pertaining limit switch.
➥ The safety function reaction to the limit switch signals is correct if safety opera-
tion is stopped.
4.
Set Safe ESDa and Safe ESDb input signals to +24 V DC (high) after the
test.
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Part-turn actuators
Tests and maintenance with AC 01.2-SIL/ACExC 01.2-SIL