Hitachi L300P Series Instruction Manual page 104

3–32
"B" Group: Fine-Tuning Functions
Func.
Name
Code
B012 Level of electronic
thermal setting
B212 Level of electronic
thermal setting, 2nd
motor
B013 Electronic thermal
characteristic
B213 Electronic thermal
characteristic, 2nd
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)
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)
60
0.5
0
Reduced trip current at (B017) Hz
Any intelligent output terminal may be programmed to indicate a thermal warning [THM].
Parameter C061 determines the warning threshold. Please see
page 4–47 for more details.
"B" Function
Description
Set a level between 50% and
120% of the inverter rated
current
Set a level between 50% and
120% of the inverter rated
current
Select from three curves,
option codes:
00 Reduced torque
01 Constant torque
02 V/f free-setting
Select from three curves,
option codes:
00 Reduced torque
01 Constant torque
02 V/f free-setting
Range is 0.0 to 400.0 Hz
Range is 0.0 to 1000. A
Range is 0.0 to 400.0 Hz
Range is 0.0 to 1000. A
Range is 0.0 to 400.0 Hz
Range is 0.0 to 1000. A
A
(x) (y) (z)
Defaults
Run
Mode
Edit
–FE2 –FU2
Lo Hi
(EU) (US)
✘ ✔
rated current for
each inverter model
✘ ✔
rated current for
each inverter model
✘ ✔
01 00
✘ ✔
01 00
✘ ✔
0. 0.
✘ ✔
0.0 0.0
✘ ✔
0. 0.
✘ ✔
0.0 0.0
✘ ✔
0. 0.
✘ ✔
0.0 0.0
(x) = B018 value x 116%
(y) = B018 value x 120%
(z) = B018 value x 150%
"Thermal Warning Signal" on
SRW Display
Units
–FR
(JP)
A >b012 E-THM
LEVEL
A >b212 2E-THM
LEVEL
00 — >b013 E-THM
CHAR
00 — >b213 2E-THM
CHAR
0. Hz >b015 E-THM
F1
0.0 A >b016 E-THM
A1
0. Hz >b017 E-THM
F2
0.0 A
>b018 E-THM
A2
0. Hz >b019 E-THM
F3
0.0 A >b020 E-THM
A3
0016.5A
0016.5A
CRT
CRT
0000Hz
0000.0A
0000Hz
0000.0A
0000Hz
0000.0A