AUMA SA Series - Safe ESD Reaction to Limit Seating with Overload Protection

Proof test (motor prot.) M1021
Simulation value: Thermal test
Figure 11: Display indication on local controls
The simulation (active/inactive) is activated and deactivated by push button Ok.
A dot on the display indicates that the simulation is active.
Black dot (●): Motor protection simulation active (thermal fault)
White dot (○): Signal not active
Test procedure
1. Operate actuator in mid-position or at sufficient distance from the end positions.
2. Set selector switch to position 0 (OFF).
3.
Change to main menu and select the Thermal test simulation value via the
Proof test (motor prot.) M1021 parameter (Do not yet activate simulation: white
dot).
4.
Set Safe ESDa and Safe ESDb input signals to 0 V (low).
➥
Safety operation is initiated.
5.
Activate motor protection simulation: Press push button Ok (black dot)
➥
Safety function is correct, if:
- For “SIL motor protection” = active configuration:
- Safety operation is stopped.
-
A SIL fault signal is issued via the SIL failure output.
- For “SIL motor protection” = inactive configuration:
- Safety operation is not stopped.
-
Nevertheless, a SIL fault signal is issued via the SIL failure output.
6.
Set Safe ESDa and Safe ESDb input signals to +24 V DC (high) after the
test.
7. Reset simulation or exit the simulation menu and reset selector switch to initial
position.
8.4.4. Safe ESD reaction to "Limit seating with overload protection" (limit and/or torque evaluation):
check
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)
●
"SIL seating" configuration
= “Limit seating with overload protection”
(Safety operation is stopped by limit switch tripping and/or torque switch tripping
(overload protection).
Test procedure
During the test, the reaction of the Safe ESD function to limit switch tripping and/or
torque switch tripping during safety operation is checked.
During Safe ESD operation, the actuator has to stop when reaching the position set
via limit switching. Safe ESD operation must also be stopped if the tripping torque
set via the torque switching is exceeded.
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.
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Multi-turn actuators
SA 07.2 – SA 16.2/SAR 07.2 – SAR 16.2 Tests and maintenance