Hitachi SJ7002 Series Instruction Manual page 119

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.
Trip
time (s)
0.5
Any intelligent output terminal may be programmed to indicate a thermal warning [THM].
Parameter C061 determines the warning threshold. Please see
page 4–52 for more details.
Func. Name/
Code Description
B012 Level of electronic thermal setting
B212 Level of electronic thermal setting, 2nd motor
B312 Level of electronic thermal setting, 3rd motor
B013 Electronic thermal characteristic
B213 Electronic thermal characteristic,
2nd motor
B313 Electronic thermal characteristic,
3rd motor
B015 Free setting, electronic thermal frequency (1)
B016 Free setting, electronic thermal current (1)
B017 Free setting, electronic thermal frequency (2)
B018 Free setting, electronic thermal current (2)
B019 Free setting, electronic thermal frequency (3)
B020 Free setting, electronic thermal current (3)
60
0
(x) (y)
Reduced trip current at (B017) Hz
Keypad
SRW OPE
0.20 x rated current) to
(2.00 x rated current) (A)
0.20 x rated current) to
(2.00 x rated current) (A)
0.20 x rated current) to
(2.00 x rated current) (A)
00
SUB Reduced torque
0 1
CRT Constant torque
02
V/f free-setting
FREE
00
SUB Reduced torque
0 1
CRT Constant torque
02
FREE V/f free-setting
00
SUB Reduced torque
0 1
CRT Constant torque
02
FREE V/f free-setting
0.0 to 400.0 (Hz);
model -4000HFx2 is
0.00 to 120.0 (Hz)
0.0 to 1000. (A)
0.0 to 400.0 (Hz);
model -4000HFx2 is
0.00 to 120.0 (Hz)
0.0 to 1000. (A)
0.0 to 400.0 (Hz);
model -4000HFx2 is
0.00 to 120.0 (Hz)
0.0 to 1000. (A)
SJ700
(x) = B018 value x 116%
(y) = B018 value x 120%
(z) = B018 value x 150%
A
(z)
"Thermal Warning Signal" on
Range and Settings FEF2
FE2
(EU)
rated current of inverter
rated current of inverter
rated current of inverter
01
01
01
0.
0.0
0.
0.0
0.
0.0
3–35
Inverter
2
Defaults
Run
Mode
FUF2 FF2
Edit
FU2 F2
Lo Hi
(USA) (Jpn)
✘ ✔
✘ ✔
✘ ✔
✘ ✔
01 00
✘ ✔
01 00
✘ ✔
01 00
✘ ✔
0. 0.
✘ ✔
0.0 0.0
✘ ✔
0. 0.
✘ ✔
0.0 0.0
✘ ✔
0. 0.
✘ ✔
0.0 0.0