Rear Panel Rs232/485 Connector; Connecting Power Supplies To Rs232 Or Rs485 Bus; Single Power Supply - Delta D750 User Manual

User Manual
D750
DC Power Supply
Front panel control in Remote mode is disabled except for:
1. PREV: use to preview the Voltage and Current limit setting.
2. OVP/UVL: use to preview the OVP/UVL setting.
3. LOC/REM: use to set the unit into Local mode.
In Local Lockout mode, only PREV and OVP/UVL are active.

4.2.3 Rear Panel RS232/485 Connector

The RS232/485 interface is accessible through the rear panel RS232/485 IN and RS485
OUT connectors. The connectors are 8 contact RJ-45. The IN and OUT connectors are
used to connect power supplies in a RS232 or RS485 chain to a controller. Refer to Fig.4-3
for IN/OUT connectors
Tx and Rx are used for RS232 communication. Txd +/-and Rxd +/-are used for RS485
communication. Refer to RS232 and RS485 cables description for connection details.

4.2.4 Connecting Power Supplies To RS232 Or RS485 Bus

4.2.4.1 Single power supply

1. Select the desired interface RS232 or RS485 using rear panel setup switch SW1-6
(section3.1.5).
-RS232: Down position
-RS485: Up position
2. Connect rear panel IN connector to the controller RS232 or RS485 port using a
suitable shielded cable.
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Fig.4-3: J3 rear panel IN/OUT connectors pinout
NOTE