Baumuller b maXX BMC-M-SAF-02, Operating Instructions Manual, Page: 84 / 120

Error diagnosis
Operation Manual b maXX safe PLC BMC-M-SAF-02
Document no.: 5.07020.04 Baumüller Nürnberg GmbH
84
of 118
14.3
m
The file system for the administration of application programs and program code is pro-
tected from being changed by CRC values. Any changes detected will cause the sys-
tem to go into safe status.
Detecting errors with BMC-M-SAF-02
The standard PLC signals errors by means of the H4 LED (red) and H8(red). The LEDs
can be freely programmed by the user In “RUN” status of the b maXX safe PLC.
Note that the following error description dues not apply in “RUN” status if the user has
programmed the LEDs in his application project.
H4 (red) on The b maXX safe PLC module is not receiving the global ready message of the following
modules (see
Z
Switching on and initialization the BMC-M-SAF-02
–
from page 65
onward):
n
Power supply module for the b maXX controller/safe PLC
n
Modules which are plugged in to the left of the b maXX safe PLC (such as the eth-
ernet module with CANopen master).
The reason for this can be:
m
There is a defect or connection error in a module.
→
Does the error also occur when only the b maXX safe PLC and its power
supply are being used?
The modules may only be assembled and disassembled when
the power has been disconnected. See the respective operation manual
of the modules for assembly and disassembly.
Yes: Check the contacts between the b maXX safe PLC and power supply
for bent pins.
Exchange the b maXX safe PLC or the power supply if necessary.
No: Assemble the other modules and their connections sequentially until
you can determine the defective module.
H2 (red) and
H6 (red) on
The module cannot address the internal memory properly.
Exchange the module.
H10 (blue) on,
H9 (red) blinking
Blinking pattern: 1 s on, 1 s off
The module has detected an error in loading the FPGA.
Exchange the module.
14.3.2 Detecting errors in the periphery
Input and output terminals are only connected to the safety control via field bus and mod-
ule bus. Protocol errors of the safety protocol are detected by the control system.