3–32

“B” Group: Fine Tuning Functions

Configuring

Drive Parameters

 

 

you must set the thermal overload threshold in terms of current (amperes) for parameter B012. The range is 20% to 120% of the rated current for each inverter model. If the current exceeds the level you specify, the inverter will trip and log an event (error E05) in the history table. The inverter turns the motor output OFF when tripped. Separate settings are available for the second motor (if applicable) as shown in the following table.

 

 

“B” Function

Run

 

Defaults

 

 

 

 

 

 

 

 

 

 

 

Func.

Name /

 

 

Description

Mode

–FEF

 

–FU

 

Units

 

 

Edit

 

 

Code

SRW Display

 

(EU)

 

(USA)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B012

Level of electronic

Set a level between 20% and

✘

Rated current

 

A

 

thermal setting

 

120% for the rated inverter

 

for each

 

 

 

 

 

current.

 

inverter model

 

 

 

E-THM LVL001.60A

 

 

 

 

 

 

 

 

*1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B212

Level of electronic

Set a level between 20% and

✘

Rated current

 

A

 

thermal setting, 2nd

120% for the rated inverter

 

for each

 

 

 

motor

 

current.

 

inverter model

 

 

 

 

 

 

 

 

 

*1

 

 

 

2ETHM LVL 01.60A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B013

Electronic thermal

Select from two curves, option

✘

01

 

01

 

—

 

characteristic

 

codes:

 

 

 

 

 

 

 

 

 

00

... Reduced torque 1

 

 

 

 

 

 

 

E-THM CHAR

CRT

 

 

 

 

 

 

 

01

... Constant torque

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

02

... Reduced torque 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B213

Electronic thermal

Select from two curves, option

✘

01

 

01

 

—

 

characteristic, 2nd

codes:

 

 

 

 

 

 

 

motor

 

00

... Reduced torque 1

 

 

 

 

 

 

 

 

 

01

... Constant torque

 

 

 

 

 

 

 

2ETHM CHAR

CRT

 

 

 

 

 

 

 

02

... Reduced torque 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note 1: For inverter models 005NFEF, 011NFEF, and 030HFEF, the thermal value is less than the rated amperes (is the same as models 004NFEF, 007NFEF, and 040HFEF respectively). Therefore, be sure to set the electronic thermal overload according to the actual motor driven by the particular inverter.

WARNING: When parameter B012, level of electronic thermal setting, is set to motor FLA rating (Full Load Ampere nameplate rating), the inverter provides solid state motor overload protection at 115% of motor FLA or equivalent. If parameter B012 exceeds the motor FLA rating, the motor may overheat and be damaged. Parameter B012, level of electronic thermal setting, is a variable parameter.