Cleveland Range inverter manual Installation, Grounding WARNING

Chapter 1 - Installation

For input and output, use wires with sufficient size to ensure voltage drop of less than 2%. Motor torque may drop if operating at low frequencies and a long wire run between inverter and motor.

When more than one motor is connected to one inverter, total wiring length should be less than 500m (1,640ft). Do not use a 3-wire cable for long distances. Due to increased leakage capacitance between wires, over-current protective feature may operate or equipment connected to the output side may malfunction.

Connect only recommended braking resistor between the B1 and B2 terminals. Never short B1 and

B2 terminals. Shorting terminals may cause internal damage to inverter.

The main circuit of the inverter contains high frequency noise, and can hinder communication equipment near the inverter. To reduce noise, install RFI filters or line noise filters on the input side of the inverter.

Do not use power factor capacitor, surge suppressors, or RFI filters on the output side of the inverter. Doing so may damage these components.

Always insure the LED and charge lamp for the power terminal are OFF before wiring terminals. The charge capacitor may hold high-voltage even after the power is disconnected. Use caution to prevent the possibility of personal injury.

Grounding WARNING

The inverter is a high switching device, and leakage current may flow. Ground the inverter to avoid electrical shock. Use caution to prevent the possibility of personal injury.

Connect only to the dedicated ground terminal on the inverter. Do not use the enclosure or a chassis screw for grounding.

The protective earth conductor must be the first one in being connected and the last one in being disconnected.

As a minimum, grounding wire should meet the specifications listed below. Grounding wire should be as short as possible and should be connected to the ground point as near as possible to the inverter.

Motor Capacity

Grounding Wire Sizes, AWG (mm²)

200V class 400V class

0.5 ~ 5.4 HP

12 (3.5)

14 (2)

Ground Screw

11