SJ700
2
Inverter
Configur
ing Dr
iv
e
P
a
ra
met
e
rs
3–35
Suppose the electronic thermal setting (B012) is set to 44 Amperes. The left graph below shows
the effect of the free setting torque characteristic curve. For example, at (B017) Hz, the output
current level to cause overheating in a fixed time period is reduced by a factor of (B018). The
right graph below shows the reduced trip current levels in those conditions for given trip times.
Any intelligent output terminal may be programmed to indicate a thermal warning [THM].
Parameter C061 determines the warning threshold. Please see
“Thermal Warning Signal” on
page 4–52
for more details.
Trip
time (s)
(x) = B018 value x 116%
(y) = B018 value x 120%
(z) = B018 value x 150%
Reduced trip current at (B017) Hz
60
0
0.5
(x)
(y)
(z)
A
Func.
Code
Name/
Description
Keypad
Range and Settings
Defaults
Run
Mode
Edit
Lo Hi
SRW
OPE
FEF2
FE2
(EU)
FUF2
FU2
(USA)
FF2
F2
(Jpn)
B012
Level of electronic thermal setting
0.20 x rated current) to
(2.00 x rated current) (A)
rated current of inverter
✘ ✔
B212
Level of electronic thermal setting, 2nd motor
0.20 x rated current) to
(2.00 x rated current) (A)
rated current of inverter
✘ ✔
B312
Level of electronic thermal setting, 3rd motor
0.20 x rated current) to
(2.00 x rated current) (A)
rated current of inverter
✘ ✔
B013
Electronic thermal characteristic
SUB
00
Reduced torque
01
01
00
✘ ✔
CRT
0 1
Constant torque
FREE
02
V/f free-setting
B213
Electronic thermal characteristic,
2nd motor
SUB
00
Reduced torque
01
01
00
✘ ✔
CRT
0 1
Constant torque
FREE
02
V/f free-setting
B313
Electronic thermal characteristic,
3rd motor
SUB
00
Reduced torque
01
01
00
✘ ✔
CRT
0 1
Constant torque
FREE
02
V/f free-setting
B015
Free setting, electronic thermal frequency (1)
0.0 to 400.0 (Hz);
model -4000HFx2 is
0.00 to 120.0 (Hz)
0.
0.
0.
✘ ✔
B016
Free setting, electronic thermal current (1)
0.0 to 1000. (A)
0.0
0.0
0.0
✘ ✔
B017
Free setting, electronic thermal frequency (2)
0.0 to 400.0 (Hz);
model -4000HFx2 is
0.00 to 120.0 (Hz)
0.
0.
0.
✘ ✔
B018
Free setting, electronic thermal current (2)
0.0 to 1000. (A)
0.0
0.0
0.0
✘ ✔
B019
Free setting, electronic thermal frequency (3)
0.0 to 400.0 (Hz);
model -4000HFx2 is
0.00 to 120.0 (Hz)
0.
0.
0.
✘ ✔
B020
Free setting, electronic thermal current (3)
0.0 to 1000. (A)
0.0
0.0
0.0
✘ ✔