Festo CMMT-AS-C2-11A-P3, Руководство пользователя, Страница: 29 / 44

No. Question Relevant Done
... c3) Actuation of the safety function STO. If only one of the assigned
inputs #STO-A or #STO-B is activated: Is the safety function STO
executed immediately? Does the output STA remain at low signal? Is
the error "Discrepancy time violation" logged in the CMMT-AS after
elapse of the discrepancy time? Yes
o
No
o
o
... c4) Actuation of the safety function SBC. If only one of the assigned
inputs #SBC-A, #S/BC-B is activated: Is the associated safety function
executed immediately? Does the output SBA remain at low signal? Is
the error "Discrepancy time violation" logged in the CMMT-AS after
elapse of the discrepancy time? Yes
o
No
o
o
... c5) Does the safety relay unit detect a fault if SBA/STA do not switch
to high signal when the safety function is requested via 1 channel? Yes
o
No
o
o
... c6) Only when linking multiple CMMT-AS and connecting the diagnost-
ic outputs: Does the safety relay unit detect a fault if the SBA/STA
linkage is interrupted at a point and, on one CMMT-AS, the corres-
ponding diagnostic output does not switch to high signal when the
safety function is requested via 1 channel? Yes
o
No
o
o
Tab. 12 Questions for validation in accordance with EN ISO 13849-2 (example)
7 Operation
The safety functions are to be checked at adequate intervals for proper functioning. Selecting the type
of test and time intervals within the stated time period is the responsibility of the operator. The check
is to be conducted such that flawless functioning of the safety device can be verified in interaction
with all components. Time period for cyclical test
è
9.1 Technical data, safety equipment.
The CMMT-AS is maintenance-free during its period of use and specified service life. The test interval
is different, depending on the safety function:
–
STO: No check is specified during the period of use, but STA evaluation is recommended with
each request for maximum diagnostic coverage and the highest safety-related classification.
– SBC: Cyclical check required at least every 24 h and STA evaluation with each request; SBC
recommended for maximum diagnostic coverage and the highest safety-related classification.
8 Malfunctions
8.1 Diagnostics via LED
Safety LED, status of the safety equipment
Malfunctions in the safety functions are detected and displayed in the functional device. Detected are:
–
1-channel requested safety functions (discrepancy monitoring)
– Internal device errors that lead to impulse monitoring not being switched off or only switched off
one-channel
– Errors in the brake outputs or the external wiring that result in voltage on the brake output des-
pite requested safety function
Operation
29 Festo — CMMT-AS-...-S1 — 2018-02