Product Information
‑12‑
● After MD500‑EM1 card is installed, J2 is on the left and J3 is on the right when
facing to the RJ45 interface. You can connect either J2 or J3 to the PLC.
● It is recommended to use shielded Cat 5e twisted pair cables to ensure stable
operation.
Table 1–2 Description of indicators of MD500‑EM1 card
Indicator
Description
Solution
D1: ON (green)
Normal
N/A
D1: OFF (green)
Abnormal
communication with
the AC drive
Check that FD‑00 is set to 9 and FD‑01 is set
to 1.
D4: OFF (green), D7:
ON (red)
System fault
Check the fault code of AC drive and take
corresponding measures.
D4: OFF (green), D7:
Blinking (red)
Waiting to get IP
address
Put the expansion card into DHCP mode so
that the expansion card can get IP address
automatically from the DHCP server.
D4: Blinking (green),
D7: Blinking (red)
Disconnected
Check that the network cable is connected
properly.
D4: Blinking (green),
D7: OFF (red)
Waiting to connect
to master
Check that the master is running.
D4: ON (green), D7:
Blinking (red)
Communication
timeout
Checked that the master is running.
D4: ON (green), D7:
OFF (red)
Normal
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