2–5

SJ200 Inverter

Logic Connector Introduction

After removing the front housing cover, take a moment to become familiar with the connectors, as shown below.

Relay output

Logic inputs

contacts

 

Analog input/ output and logic

outputs

Logic Connector Removal/Replacement - The two 8-position main logic connectors are removable from the circuit board to make testing or service more convenient. Note that the relay output connector is not removable, as it must carry higher currents and provide high integrity for alarm conditions. The alarm circuit may carry hazardous live voltages (from external wiring) even when the main power to the inverter is OFF. So, never directly touch any terminal or circuit component.

The logic input connector (top connector) can be removed by pulling gently upward as shown (below left). DO NOT force the connector, as damage to the circuit board may occur. Try gently shifting the connector side-to-side while pulling, if having difficulty.

The analog input/output and logic output connector (bottom connector) has retention screws. DO NOT attempt to remove the connector before loosening the screws. As the figure shows (below right), use a small Phillips screwdriver to loosen the screw at each end. The connector can be pulled forward easily after the screws are removed.

Installation and

Mounting Inverter