Hitachi SJ/L-EN Ethernet Communications Module, Instruction Manual

Page: 10 / 36

Chapter2
Page 10 of 36
Installing the Module
Gently push the SJ/L-EN board into the supplied piece of SNAP-TRACK until it is securely seated. If mounting
the SJ/L-EN on a DIN-Rail, attach the two DIN-Rail Clips to the back of the SNAP-TRACK. The assembly can
then be affixed to a DIN rail using the clips. Otherwise, the SNAP-TRACK can be affixed directly to a flat
surface using double-sided tape, with screws, or other mounting method of your choice.
Make sure the inverter is powered down. Connect the SJ/L-EN to the inverter using the 2 ft. long RJ11
Male/Male cable supplied. Plug one end into the RJ11 Jack on the SJ/L-EN marked “SERIAL”. The other end of
this cable plugs into the RJ45 connector on the inverter. In the case of the SJ200, the keypad and male/male
adapter on the inverter must be removed, and the cable will plug into the RJ45 Jack on the front of the SJ200.
Note: Even though the communication connector jack on the inverter is RJ45 and the 2 ft. cable plug is RJ11,
the RJ11 plug will fit into the center of the RJ45 jack and connect properly.
The SL/L-EN requires 24 VDC to be supplied to it, via the terminals marked “
+
24 V
−
” on the lower left of the
board. This power may be supplied from the inverter in the case of the L100 and SJ100, where 24 VDC is
available between terminals P24 and L. In the case of the L200 and SJ200, an external 24 VDC power supply
must be provided by the user. The terminal marked GNDC is an additional grounding point, and may be used to
terminate the shield lead if shielded cable is used to connect to the SJ/L-EN.
The ethernet network cable will plug into the RJ45 jack on the SJ/L-EN marked “ETHERNET”.