2–18

Step-by-Step Basic Installation

Terminal Dimensions and Torque Specs

The terminal screw dimensions for all L2002 inverters are listed in table below. This information is useful in sizing spade lug or ring lug connectors for wire terminations.

CAUTION: Fasten the screws with the specified fastening torque in the table below. Check for any loosening of screws. Otherwise, there is the danger of fire.

 

 

 

Models 002NF,

Models 007NF-

Models 055LF,

 

 

Number

022NF, 037LF,

075LF, 055HF,

 

 

004NF, 005NF

 

 

004HF - 040HF

075HF

 

Connector

of Screw

 

 

MountingInverter Installationand

 

 

 

 

 

 

 

Terminals

Screw

Width

Screw

Width

Screw

Width

 

 

 

 

Diameter

(mm)

Diameter

(mm)

Diameter

(mm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power Terminals

12

M3.5

7.1

M4

9

M5

13

 

 

 

 

 

 

 

 

 

 

Control Signal

16

M2

—

M2

—

M2

—

 

 

 

 

 

 

 

 

 

 

Alarm Signal

3

M3

—

M3

—

M3

—

 

 

 

 

 

 

 

 

 

 

Ground Terminals

2

M4

—

M4

—

M5

—

 

 

 

 

 

 

 

 

 

When connecting wiring, use the tightening torque listed in the following table to safely attach wiring to the connectors.

Screw

Tightening Torque

Screw

Tightening Torque

Screw

Tightening Torque

 

 

 

 

 

 

 

 

 

 

 

 

M2

0.2 N•m (max. 0.25 N•m)

M3.5

0.8 N•m (max. 0.9 N•m)

M5

2.0 N•m (max. 2.2 N•m)

 

 

 

 

 

 

M3

0.5 N•m (max. 0.6 N•m)

M4

1.2 N•m (max. 1.3 N•m)

—

—

 

 

 

 

 

 

Wire the Inverter Input to a Supply

6

Step 6: In this step, you will connect

Single-phase

3-phase

wiring to the input of the inverter. First,

input wiring

input wiring

 

you must determine whether the inverter

 

 

 

 

model you have requires three-phase

 

 

 

power only, or if it can accept either

 

 

 

single-phase or three-phase power. All

 

 

 

models have the same power connector

 

 

 

terminals [R/L1], [S/L2], and [T/L3].

 

 

 

So, you must refer to the specifications

 

 

 

label (on the side of the inverter) for

 

 

 

the acceptable power source types! For

 

 

 

inverters that can accept single-phase

 

 

 

power and are connected that way,

 

 

 

terminal [S/L2] will remain uncon-

 

 

 

nected.

 

 

The examples to the right show single- phase and 3-phase input wiring. Note the

use of ring lug connectors for a secure connection.