Omron 3G3RX - Input Power Supply Phase Loss Protection Function Selection; Electronic Thermal Function

To Next Page

To Previous Page

4-46

4-2 Function Mode

Functions

Input Power Supply Phase Loss Protection Function Selection

•This function outputs an alarm when the Inverter's input power supply has phase loss.

Phase loss may cause the Inverter to fail, as follows:

•The main capacitor ripple current increases, resulting in remarkable reduction in the capacitor's

service life.

•When load is applied, the Inverter's internal converter or thyristor may be damaged.

Electronic Thermal Function

•Causes a trip to protect the motor from overheating. Set this according to the motor rated current.

•Provides the most appropriate protection characteristics, taking into account the decline of the

motor cooling capability at a low speed.

•Outputs an alarm signal before an electronic thermal trip.

•Rated values will be affected by the HD, ND selection.

* To switch to the 2nd/3rd control, allocate 08 (SET)/17 (SET3) to the desired multi-function input and then turn it

on.

*1.

Set a percentage relative to the electronic thermal multiplication value. When the value reaches 100%, an

overload trip (E05) occurs.

Parameter No. Function name Data Default setting Unit

b006

Input phase loss protection

selection

00: OFF (Disabled)

01: ON (Enabled)

01 

Parameter No. Function name Data Default setting Unit

b012 Electronic thermal level

0.20 × Rated current to 1.00 ×

Rated current

Rated current Ab212 *2nd electronic thermal level

b312 *3rd electronic thermal level

b013

Electronic thermal

characteristics selection

00: Reduced TRQ (Reduced torque

characteristics)

01: Const TRQ (Constant torque

characteristics)

02: Free set (Free setting)

00 b213

*2nd electronic thermal

characteristics selection

b313

*3rd electronic thermal

characteristics selection

b015