Operating Instructions Interlocking/Locking Modules
MGB2-I..-MLI-... / MGB2-L..-MLI-... (Modular)
24
(Translation of the original operating instructions) 2500234-01-08/18
9.3.
Replacing submodules
CAUTION
Risk of damage to equipment or malfunctions as a result of uncontrolled machine stop.
Ì
The communication within the system is interrupted by the replacement of a submodule and the
safe bits are reset. If a process is running, this situation can result in an uncontrolled stop and
damage to the installation or the product. Before replacement make sure the installation is in a
suitable operating status.
NOTICE
Pay attention to the information on the replacement of a submodule in the operating instructions for
the related module. On submodules with a safety function, the correct function must be tested after
replacement before the system enters normal operation again.
The replacement of submodules MSM while in operation is also possible (pay attention to safety instruction above). As
soon as the system detects a correct submodule, the submodule is ready for operation. The system reacts as follows on
a replacement:
1. If the submodule MSM is removed, the SLOT LED illuminates red, interrupted by 1x green flash. In addition, the SF LED
on the bus module MBM illuminates red
2. If the submodule MSM contains a safety function, the related bit on the bus is cleared as soon as the submodule has
been removed
3. If an identical submodule is inserted with the same alignment, the fault display goes out and the bit is transmitted on the
bus again to suit the actual situation.
9.3.1. Replacing faulty submodules
Important!
If alignment detection is active, the system checks the alignment of the newly inserted submodule
and compares it to the submodule inserted last. The alignment of the previous submodule must be
retained in this situation because otherwise the configuration of the device will change. If a configuration
change is required, pay attention to the sequence in
9.3.2. Replacing submodule with a submodule
with a different function (changing configuration)
. You will find information on switching on and off the
alignment detection in the operating instructions for your bus module MBM.
9.3.2. Replacing submodule with a submodule with a different function (changing configuration)
The system saves the last configuration of your system.
The configuration changes if
Ì
You replace a submodule with a submodule with a different function or
Ì
You fit the same submodule rotated by 180°.
Adapt the configuration in the configuration software for your control system.
Then the new configuration must be taught-in by restarting the bus module MBM. You will find further information in the
operating instructions for your bus module MBM.
