7
Operation
MOVIFIT® MC status LEDs
Operating Instructions – MOVIFIT
®
MC
131
"MOD/NET" LED
The function of the "Mod/Net" LED described in the following table is defined in the
DeviceNet™ specification.
LED
Possible
cause
Meaning
Measure
Off
Not
switched
on / Off-
line
Unit is offline.
Unit is performing a DUP-MAC
check.
Unit is switched off.
• Apply supply voltage
via DeviceNet™ con-
nector.
Green
Flashing
(1 s cycle)
Online
and in op-
erational
mode
The unit is online and no connec-
tion has been established.
DUP-MAC check performed suc-
cessfully.
A connection has not yet been
established with a master.
Missing (incorrect) or incomplete
configuration.
• Include the station in
the master's scan list
and start communica-
tion in the master.
Green
Illuminated
Online,
operation-
al mode
and con-
nected
Unit is online.
Connection is active (established
state).
-
Red
Flashing
(1 s cycle)
Minor
fault or
connec-
tion
timeout
A correctable fault has occurred.
24V_S actuator voltage missing.
Polled I/O and/or bit-strobe I/O
connections are in the timeout
status.
A correctable error has occurred
in the unit.
• Check DeviceNet™
cable.
• Check the 24V_S
voltage supply.
• Check timeout re-
sponse (
P836
). If a
response with error is
set, reset the unit
once the error has
been corrected.
Red
Illuminated
Critical
error or
critical
link failure
An error that cannot be corrected
has occurred.
BusOff status.
DUP-MAC check has detected an
error.
• Check DeviceNet™
cable.
• Check the address
(MAC ID). Is another
unit already using the
same address?
19484828/EN – 01/2015
