2–3

SJ300 Inverter

2.Second-level access - First, ensure no power source of any kind is connected to the inverter. If power has been connected, wait five minutes after powerdown and verify the Charge Lamp indicator is OFF to proceed. Then locate the recessed retention screw at the bottom of the main front panel. Use a small Phillips screwdriver to remove the screw. Press the two latch release areas near the “SJ300” label as shown, and simultaneously slide the lower front downward to release for removal.

Press here and slide cover downward

Retention screw

Installation and

Mounting Inverter

 

 

Notice the large power terminals at the bottom of the wiring area. The rubber grommets below the power terminals are for wire entry/exit to the power source and motor. Never operate the inverter with the front panel removed.

The control terminals connect logic or analog signals for control and monitoring of the inverter. The nearby alarm relay provides both normally-open and normally-closed logic for interface to an external alarm. The alarm circuit may carry hazardous live voltages even when the main power to the inverter is OFF. So, never directly touch any terminal or circuit component.

Logic Connector

Power terminals

Wire entry/exit plate

Charge lamp indicator

WARNING: Be sure to wait five minutes after powerdown and verify the charge lamp indicator is OFF to proceed. Otherwise there is the risk of electric shock.