7
Service
Status and error display
Compact Operating Instructions – MOVIMOT
®
MM..D with AS-Interface
56
7.1.1
Meaning of the AS-Interface LED
The AS-Interface LED signalizes the status of the AS-Interface slaves.
MLK30A
LED
Color
State
Meaning
Operating state
Possible cause
Off
Not
ready
24 V supply at AS-Interface connection
missing.
Green
Steady light
Ready
Normal operation
24 V supply at AS-Interface connection
is OK.
Communication established.
Red
Steady light
Not
ready
Communication is interrupted
or slave address set to 0.
MLK31A
LED
Color
State
Meaning
Operating state
Possible cause
Off
Not
ready
24 V supply at AS-Interface connection
missing.
Green
Steady light
Ready
Normal operation
24 V supply at AS-Interface connection
is OK.
Communication established.
Red
Steady light
Not
ready
Communication error at A or B-slave.
Red
Flashing
steadily
Not
ready
Protocol error
No CTT3 communication with A-slave
or not CTT2 communication with B-
slave.
Red/Yellow
Flashing
steadily
Not
ready
Slave address = 0
21328994/EN – 11/2014