Leuze electronic RSL 430 - Changeover of 2 X Ten Field Pairs; Monitoring of Field Pair Changeover

Functions
Leuze electronic RSL 430 40
2 3 4
PF1.1
PF1.2
PFA…
PFA.x
1
5
7
6
0 0
1
A1.2
0
0 0
1 1
1
XX
0 1
1 1
0
00 0
A1.2 A1.x
0
0
0
0
0
1
1 Active protective field
2 An old protective field is active
3 Set changeover time
4 A new protective field is active
5 Initiation of the field pair changeover caused by a change in the signal – the old protective field is monitored
until the end of the changeover time
6 Fixed end – field pair changeover complete
7 …Only one field pair change
PF Field pair or quad
XX Field pair changeover
Fig.5.3: Signal/time diagram: Overlapped monitoring
5.7.4 Changeover of 2x ten field pairs
Two protective functions
• The connection of control inputs F1…F5 controls the field pair changeover for protective function A
(safety-related switching outputs OSSD-A)
• The connection of control inputs F6…F10 controls the field pair changeover for protective function B
(safety-related switching outputs OSSD-B)
• The connection of the control inputs corresponds to the changeover of ten field pairs for protective
function A (field pairs A1.1 to A1.10) and ten field pairs for protective function B (field pairs B1.1 to
B1.10); see chapter see chapter 5.7.3 "Changeover of ten field pairs in changeover mode Fixed
changeover moment".
5.8 Monitoring of field pair changeover
The Changeover order function determines the permissible field pair changeovers, e.g. if field pair A1.3
must be changed over to field pair A2.5. If the Changeover order function is active, the safety-related
switching outputs (OSSDs) switch off in the following cases:
• the control initiates an impermissible field pair changeover.
• the field pair to which the system is changed over has been deactivated.
Activating the function
Ä The Changeover order is defined using the configuration and diagnostics software (see chapter 9.5
"Defining permissible field pair changeovers").