7
2500234-01-08/18 (Translation of the original operating instructions)
Operating Instructions Interlocking/Locking Modules
MGB2-I..-MLI-... / MGB2-L..-MLI-... (Modular)
EN
3. Description of the safety function
Important!
You will find detailed instructions on the determination of reliability values in the operating instructions
for your bus module.
Devices from this series feature the following safety functions:
For the MGB2-L... the following applies:
Monitoring of guard locking and the position of the guard
(interlocking device with guard locking according to EN ISO 14119)
Ì
Safety function (see chapter
6. Function on page 10
):
-If the guard locking is unlocked, safety bit
LM.I_UK
(ÜK) = 0 (monitoring of the locking element).
-If the guard is open, safety bit
LM.I_SK
(SK) = 0 (monitoring of the position of the guard).
-Guard locking can be activated only when the bolt tongue is located in the locking module (failsafe locking mechanism).
PLC
PFHD, Sys
PFHD, MBM
PFHD, MGB2-L
Guardlocking
Device
MGB2-L...
Busmodule
MBM
EUCHNER
ModuleLink
-System (
MLI
)
Safetybit
LM.FI_UK_
(Guardlock monitoring)
Ì
Safety characteristics:
Category, Performance Level, PFH
D
(reliability values according to EN 13849-1 see
18. Technical data
).
Control of guard locking (safety bit
FO_CL
)
Ì
Safety function:
If the device is used as guard locking for personnel protection, control of guard locking must be regarded as a safety
function.
The safety level of guard locking control is determined by the system PFHD
sys.
and by the external control (e.g. safe
PLC).
PFHD, ext.
PFHD, Sys
Guardlocking
Device
MGB2-L...
Busmodule
MBM
EUCHNER
ModuleLink
-System (
MLI
)
(e.g. standstill
monitor)
Safetybit
FO_CL
(Guardlocking)
PFHD, MBM
PFHD, MGB2-L
Ì
Safety characteristics of the bus module MBM and the locking module MGB2-L:
Category, Performance Level, PFH
D
(reliability values according to EN 13849-1 see
18. Technical data
).
For MGB2-I... (or a correspondingly configured MGB2-L...) the following applies: