19
Possible indicator combinations of status LEDs and their meanings:
6.2. LEDs for safe signal inputs/outputs
The state at each of the 20 safe inputs and 4 safe outputs is indicated by an LED on the front plate of the
device.
PWR
EXT
ERR
CFG
Meaning
Device is switched off:
No power supply at A1 and A2
Initialization phase after switching on
(lasts 4 s maximum)
Initial startup state
:
slow
Acknowledgment of new configuration required after
downloading:
• Press the CONFIRM button on the device.
:
fast
Acknowledgement of a new data memory module
AC-MSI-CFG1 is necessary:
• Press the CONFIRM button on the device.
:
slow
Change of extension devices; acknowledgement required;
• Press the CONFIRM button on the device.
Normal operation with no extension devices connected
(DIN rail connector communication)
Normal operation with extension devices connected
(DIN rail connector communication)
Restricted operation with errors in at least one IO
• For the error removal, refer to section
“6.5. Confirm button”
No configuration data on the AC-MSI-CFG1 data memory module
• Load project with
MSIsafesoft
.
AC-MSI-CFG1 data memory module not present.
• Insert AC-MSI-CFG1 data memory module and introduce
power supply.
:
fast
Error present.
• Please read out the error code via
MSIsafesoft
.
LED
State
Meaning
For each input
"I0" to "I19"
There is no switching signal at the relevant input.
The switching signal is active at the input.
Error at input.
For each output
"O0" to "O3"
Output is inactive
Output active
Diagnostics error (see user manual, e.g., no power supply
present, cross circuit or overload)
