Engel HFI2230-S200, Руководство по эксплуатации

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STO – Safe Torque OFF
Functional description
Operating Manual Rev. 1.3 www.engelantriebe.de page 11
6.2.2 Diagnostic test
According to DIN EN 61800-5-2, a cyclical test of the proper function of the status output must be carried out at least
every 3 months to ensure the specified PFH value.
For this purpose, the two STO channels are stimulated in a test sequence with different input states (test steps 1
– 6).
In each test step, the state of the status output is compared to its target state specified in the table below. The correct
function of the status output is only fulfilled, when the status output reacts according to the target states in all 6 test steps
in succession.
The test sequence can be carried out manually or automatically by means of a control unit.
Test
Step
Channel1
V
STO1
Channel2
V
STO2
Status Output
Target State
Note
1
0 … 5 V
(OFF)
0 … 5 V
(OFF)
closed
conductive
Both STO channels voltage-free, unsupplied:
STO active = safe state
2
24 V
(ON)
0 … 5 V
(OFF)
open
non-conductive
Invalid state:
STO channels inconsistently driven
3
0 … 5 V
(OFF)
0 … 5 V
(OFF)
closed
conductive
Both STO channels voltage-free, unsupplied:
STO active = safe state
4
0 … 5 V
(OFF)
24 V
(ON)
open
non-conductive
Invalid state:
STO channels inconsistently driven
5
0 … 5 V
(OFF)
0 … 5 V
(OFF)
closed
conductive
Both STO channels voltage-free, unsupplied:
STO active = safe state
6
24 V
(ON)
24 V
(ON)
open
non-conductive
Both STO channels supplied with voltage:
Safety function deactivated,
normal operation of the drive available

Note!
The status signal / status output is for diagnostic purposes only and has no safety rele-
vance. It must not be used in the safety circuit!
 Note!
Measuring and contact points should be provided (in the control cabinet, for example) to make
a manual diagnostic test possible and practicable.
A software aided diagnostic test is permissible.
 Note!
The values listed under Safety parameters are valid on condition that the specifications of this
diagnostic test are observed. Therefore, the diagnostic test must be carried out for dual-chan-
nel systems as well as for single-channel systems.