Chapter 5 Parameters|VFD-B Series

06 - 06 Electronic Thermal Overload Relay Selection (OL1)

Factory Setting: 02

Settings

00 Operate with a Standard Motor (self-cooled by fan)

01 Operate with a Special Motor (forced external cooling)

02 Operation disabled

This function is used to protect the motor from overloading or overheating.

06 - 07 Electronic Thermal Characteristic

Unit: 1

Settings

30 to 600 sec

Factory Setting: 60

The parameter determines the time required for activating the I2t electronic thermal protection

function. The graph below shows I2t curves for 150% output power for 1 minute.

Operation

time(min)

5

60Hz or more

4

50Hz

3

10Hz

2

5Hz

1

Load

0 20 40 60 80 100 120 140 160 180 200 factor (%)

06 - 08 Present Fault Record

06 - 09 Second Most Recent Fault Record

06 - 10 Third Most Recent Fault Record

06 - 11 Fourth Recent Fault Record

Readings 00 No fault

01 Over-current (oc)

02 Over-voltage (ov)

03 Overheat (oH)

04 Overload (oL)

05 Overload1 (oL1)

06 External fault (EF)

Factory Setting: 00

5-68

Revision July 2008, BE16, SW V4.08 & V5.00