Malfunctions
Status LED, display of the device status
LED
Meaning
Flashe
An error is present.
s red
Flashe
A warning is present, or the servo drive is currently performing a firmware update.
s
yellow
Illumi-
The servo drive is in the initialisation phase.
nated
yellow
Flashe
The servo drive is ready, and the power stage is switched off (Ready).
s
green
Illumi-
The power stage and the closed-loop controller are enabled.
nated
green
Tab. 41: Status LED
Power LED, status of the power supply
LED
Meaning
yellow
The logic power supply is present, but the load voltage supply is not present or is
light
currently being measured.
green
The load voltage supply and the logic power supply are present.
light
Tab. 42: Power LED
Safety LED, functional status of the safety engineering
Malfunctions of the safety sub-function are detected and displayed in the functional device. The
following are detected:
– Safety sub-function STO requested via 1 channel (discrepancy monitoring)
– Plausibility check of STO channel switch-off
Malfunctions are externally reported by the functional part, including via the additional communica-
tion interfaces (bus, commissioning software).
LED
Meaning
Flashe
Error in the safety part, or a safety condition has been violated.
s red
38
Festo — CMMT-ST-C8-1C-...-S0 — 2021-04b
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