Mitsubishi MELSEC-A A1SJ71DN91, Руководство пользователя

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4.1.1 LED Display and Its Details
The table below explains LED display and its details.
LED
name
Color Details State of LED
Illuminating In normal operation
Module error detected
Power not supplied
Not
illuminating
Parameter being loaded
Module error detected
RUN Red Displaying
normal
operation
Flickering
Parameter being loaded
Illuminating In communications
Not
illuminating Communications stopped
Flickering
(periodically) Communications ready
L.RUN Red Displaying
communic
ations
state
Flickering
(random) Communications parameter
error
Illuminating DeviceNet interface in normal
operation Green
(top) Displaying
module
state
Flickering Parameter error
MS
Red
(bottom) Displaying
module
state Unused
Illuminating In on-line state and
communications possible with
slave station Green
(top) Displaying
network
state
Flickering In on-line state but
communications impossible
with slave station
Duplicated MAC ID error
A
J71DN91
RUN
L.RUN
MS
NS
A
1SJ71DN91
RUN
L.RUN
MS
NS
NS
Red
(bottom) Displaying
network
state Illuminating
Bus off error occurred.
5. Handling Precautions
This section describes the cautions for handling the module.
(1) Do not drop or give a hard physical shock to the enclosure and terminal block of the
module as they are made of resin.
(2) Do not remove the printed circuit board from the enclosure for the module.
Removing it could cause a failure.
(3) When wiring, make sure that no foreign materials such as wire pieces may be caught
inside the module. Remove them if they are caught.
(4) Apply a torque as specified in the table below for tightening fitting or terminal screws
for the module.
Type of screw Tightening torque range
A1SJ71DN91 Module mounting screw (M4) 78 to 118 N y cm
DeviceNet Connector screw 35.3 to 48.0 N y cm
DeviceNet Connector wire screw 60.8 to 82.3 N y cm