Omron Sysdrive RX Series - Electronic Thermal Function

4-46
4-2 Function Mode
4
Functions
•The Digital Operator displays until restart, after output is shut off.
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.
Parameter No. Function name Data Default setting Unit
b006
Input phase loss protection
selection
00: Disabled
01: Enabled
00 
okokoko
b003
Inverter
output frequency
Output current
FW
FRS
b028
Decelerates according to b029
Frequency selected in b030
Motor rotation
speed
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 torque characteristics
01: Constant torque characteristics
02: Free setting
00 b213
*2nd electronic thermal
characteristics selection
b313
*3rd electronic thermal
characteristics selection