
Malfunctions are reported by the functional part to the outside, also over the additional communica-
tion interfaces (fieldbus, CMMT tool).
LED
Meaning
Flash-
es red
Error in the safety part, or a safety condition is violated.
Flash-
es yel-
low
The safety function is requested, but not yet active.
Lights
up
yellow
The safety function is requested and active.
Flash-
es
green
Output stage, brake outputs and safety diagnostic outputs are blocked (safety
parameterisation is running).
Lights
up
green
Ready, no safety function is requested.
Tab. 13 Safety LED
8.2
Repair
Repair or maintenance of the product is not permissible. If necessary, replace the complete product.
1. If there is an internal defect: Always replace the product.
2. Send the defective product unchanged, together with a description of the error and application,
back to Festo.
3. Check with your regional Festo contact person to clarify the conditions for the return shipment.
Malfunctions
30
Festo — CMMT-AS-...-S1 — 2018-02