APPENDIX B. ELECTRICAL AND DATA CONNECTIONS
IS-300CA INVERTER POWER SUPPLY
B-18 990-418
3. Connection with equipment featuring PNP (source) current output using external power supply.
Connect the negative side of an external 24 VDC power supply to pin 2.
Connection with equipment featuring NPN (sink) open collector output using external power supply.
Connect the positive side of an external 24 VDC power supply to pin 2.
(Note) The circuit between pins 1-2-3, 4-5, 18-19-20, and 21-22 are closed when shipped. Disconnect
unnecessary jumper wires referring to each connection.
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