AUMA SAR 07.2 Manual

7. Check Safe ESD reaction to "Forced torque seating in end position" (first torque
then limit evaluation).
8. Check Safe ESD reaction for "No seating" (no evaluation of limit and torque)
9. Check Safe STOP function.
10. Check combination of Safe ESD and Safe STOP function.
The safety-related signal input is appropriately assigned to check the safety-related
function. As a consequence, the actuator has to perform the safety function. For a
detailed description of the proof test steps refer to the following sections.
Intervals:
A proof test interval describes the time between two proof tests. Functionality must
be checked in appropriate intervals. The intervals are to be defined by the plant
operator. Safety figures depend on the selected proof test interval; in our example,
they are valid for T
proof
= 1 year (refer to <Safety figures> chapter).
In any case, the safety-related functions must be checked after commissioning and
following any maintenance work or repair as well as during the T
proof
intervals defined
in safety assessment.
If a fault occurs during proof test, safe function has to be ensured introducing
alternative actions. Please contact AUMA Riester GmbH & Co. KG.
The type of proof test to be performed depends on version and configuration of the
product. Only the tests applicable have to be performed.
Information Before starting the test we recommend reading the respective test procedure at least
once.
8.4.1. Safe ESD safety operation (Safe OPENING/CLOSING)
Configuration
The test is valid for all versions with Safe ESD function (irrespective of the "SIL
seating" configuration).The Safe ESD reaction to the different seating types is verified
in separate tests.
Test procedure
When switching the Safe ESDa/Safe ESDb inputs accordingly, safety operation
into the configured direction must be triggered.
If "SIL seating = no seating" (without end position protection) is configured,
faulty operation during the test may result in damage to the elements within
the safety-related system.
Possible consequences: Valve damage, motor overheating, contactor jamming, de-
fective thyristors, heating up or damage to cables.
→
Check "SIL seating" before proof test configuration. The configured type of
seating is indicated in the wiring diagram (page 2).
→
For actuators with "SIL seating" = "No seating": Interrupt safety operation
before reaching the end position (Set Safe ESDa/Safe ESDb input sig-
nals to +24 V DC).
→
For the test, the valve should either be in mid-position or at sufficient distance
from the end positions.
→
In case of damage, the actuator system has to be checked and repaired, if ne-
cessary.
Test procedure
1. Operate actuator in mid-position or at sufficient distance from the end positions.
25
Multi-turn actuators
SA 07.2 – SA 16.2/SAR 07.2 – SAR 16.2 Tests and maintenance

AUMA SAR 07.2 Specifications

General

Brand	AUMA
Model	SAR 07.2
Category	Controller
Language	English