Omron RX2 Series User Manual page 289

 Constant Torque Characteristics [bC111]=01
Use this setting to use the constant-torque motor
(Ex.3) For induction motor rated current: 64A, [bC110]=64(A)
Base frequency [Hb104]=50 Hz, output frequency =5 Hz
Reduction ratio
X1.0
0
0
Trip time (s)
60
3
0
(110%)
When the first electronic thermal level [bC110] is 64 A, the reduction ratio is ×1.0 for operations at a
base frequency of 50 Hz and output frequency of 5 Hz and the electronic thermal time-limited char-
acteristics are given in the lower part of Example 3.
Since Example 1 shows the case of the reduction ratio ×1, a trip occurs in 60 seconds when an elec-
tric current of 150% ×1 of the motor rated current flows continuously. The performance in the exam-
ple 3 is the same as the one in the example 1.
 Free Settings [bC111]=02
To protect the motor, the electronic thermal characteristics can be freely set in accordance with the
load.
High-function General-purpose Inverter RX2 Series User's Manual
Inverter
Output frequency (Hz)
50
60
Base frequency
×1
Motor current (A)
70.4 96 128
(150%) (200%) (Ratio to motor rated current)
6 Basic Parameter Settings
6
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