SJ700
2
Inverter
Configur
ing Dr
iv
e
P
a
ra
met
e
rs
3–33
Example 3, setting for SJ700-3150LFE2 (185 to
400kW) - The rated motor current is 600A. The
setting range is (0.2 * 64) to rated current, or 120A
to 600A. For a setting of B012 = 600A (current at
100% rated current), the curve is shown to the
right.
The electronic thermal characteristic adjusts the
way the inverter calculates thermal heating, based
on the type of load connected to the motor, as set
by parameter B013.
CAUTION:
When the motor runs at lower
speeds, the cooling effect of the motor’s internal
fan decreases.
The table below shows the torque profile settings.
Use the one that matches your load.
Reduced Torque Characteristic
– The
example below shows the effect of the
reduced torque characteristic curve (for
example motor and current rating). At 20Hz,
the output current is reduced by a factor of
0.8 for given trip times.
Function Code
Data
Function/Description
B013 / B213 / B313
00
Reduced torque
0 1
Constant torque
02
Free-setting
Trip
time (s)
Trip current at 60 Hz
60
5.0
0
636
900
1140
A
106% 150%
190%
SJ700-3150LFE2
Trip current
reduction
factor
x 1.0
x 0.8
x 0.6
0
5
20
60
Hz
Trip
time (s)
Reduced trip current at 20 Hz
A
60
0.5
0
102.4
55.8 76.8
87.2% 120%
160%
SJ700-150LFE2;
rated current is 64A
Trip
time (s)
Reduced trip current at 20 Hz
A
60
0.5
0
912
508.8
720
84.8% 120%
152%
SJ700-3150LFE2;
rated current is 600A
