Table 96: Evaluation of the test signals during forward movement
Check sequence
Expected result
Result OK?
1.
Apply the test signal during for‐
ward movement.
•
Test signal 1 “forward” active (XTIO
input I1)
•
Test signal 2 “backward” inactive
(XTIO input I2)
•
No fault, system is in a functional
state (XTIO outputs Q1 "QA110.1
safety output (STO)" and Q2
"QA110.2 safety output (STO)" are
active)
Yes
⃞
No
⃞
1.
Apply the test signal during for‐
ward movement.
2.
Set test signal 1 “forward” to
active (XTIO input I1).
3.
Set test signal 2 “backward” to
active (XTIO input I2).
The safety system switches to the safe
state (XTIO outputs Q1 "QA110.1
safety output (STO)" and Q2 "QA110.2
safety output (STO)" are deactivated)
Yes
⃞
No
⃞
1.
Apply the test signal during for‐
ward movement.
2.
Set test signal 1 “forward” to
inactive (XTIO input I1).
3.
Set test signal 2 “backward” to
active (XTIO input I2).
The safety system switches to the safe
state (XTIO outputs Q1 "QA110.1
safety output (STO)" and Q2 "QA110.2
safety output (STO)" are deactivated)
Yes
⃞
No
⃞
1.
Apply the test signal during for‐
ward movement.
2.
Set test signal 1 “forward” to
inactive (XTIO input I1).
3.
Set test signal 2 “backward” to
inactive (XTIO input I2).
The safety system switches to the safe
state (XTIO outputs Q1 "QA110.1
safety output (STO)" and Q2 "QA110.2
safety output (STO)" are deactivated)
Yes
⃞
No
⃞
17.1.7
Thorough check on the process channel (backward movement)
Evaluation of the test signals during backward movement
NOTE
You must undo the manipulation on the safety system again after each individual test
sequence. Then you must reset the safety system and carry out a restart.
Table 97: Evaluation of the test signals during backward movement
Check sequence
Expected result
Result OK?
1.
Apply the test signal during back‐
ward movement.
•
Test signal 1 “forward” inactive
(XTIO input I1)
•
Test signal 2 “backward” active
(XTIO input I2)
•
No fault, system is in a functional
state (XTIO outputs Q1 "QA110.1
safety output (STO)" and Q2
"QA110.2 safety output (STO)" are
active)
Yes
⃞
No
⃞
1.
Apply the test signal during back‐
ward movement.
2.
Set test signal 1 “forward” to
active (XTIO input I1).
3.
Set test signal 2 “backward” to
active (XTIO input I2).
The safety system switches to the safe
state (XTIO outputs Q1 "QA110.1
safety output (STO)" and Q2 "QA110.2
safety output (STO)" are deactivated).
Yes
⃞
No
⃞
ANNEX
17
8020941/12O9/2019-08-05 | SICK
O P E R A T I N G I N S T R U C T I O N S | Safe Linear Positioning
91
Subject to change without notice
