Hitachi SJ2002 Series Instruction Manual page 114

3–34
"B" Group: Fine Tuning Functions
which is also proportional to the heat generated (and temperature, over time). Therefore,
you must set the thermal overload threshold in terms of current (amperes) for parameter
B012. The range is 20% to 120% of the rated current for each inverter model. If the
current exceeds the level you specify, the inverter will trip and log an event (error E05) in
the history table. The inverter turns the motor output OFF when tripped. Separate
settings are available for the second motor (if applicable) as shown in the following
table.
Func.
Code SRW Display
B012 Level of electronic
thermal setting
E-THM LVL001.60A
B212 Level of electronic
thermal setting, 2nd
motor
2ETHM LVL 01.60A
B013 Electronic thermal
characteristic
E-THM CHAR
B213 Electronic thermal
characteristic, 2nd
motor
2ETHM CHAR
Note 1:
WARNING: When parameter B012, level of electronic thermal setting, is set to motor
FLA rating (Full Load Ampere nameplate rating), the inverter provides solid state motor
overload protection at 115% of motor FLA or equivalent. If parameter B012 exceeds the
motor FLA rating, the motor may overheat and be damaged. Parameter B012, level of
electronic thermal setting, is a variable parameter.
"B" Function
Name /
Set a level between 20% and
120% for the rated inverter
current.
Set a level between 20% and
120% for the rated inverter
current.
Select from two curves, option
codes:
00... Reduced torque 1
CRT
01... Constant torque
02... Reduced torque 2
Select from two curves, option
codes:
00... Reduced torque 1
01... Constant torque
CRT
02... Reduced torque 2
For inverter models 005NFE(F), 011NFE(F), and 030HFE(F), the thermal
value is less than the rated amperes (is the same as models 004NFE(F),
015NFE(F), and 040HFE(F) respectively). Therefore, be sure to set the
electronic thermal overload according to the actual motor driven by the
particular inverter.
Run
Mode
Edit
Description
Lo Hi
✘ ✔
✘ ✔
✘ ✔
✘ ✔
Defaults
–FE(F) –FU
Units
(EU) (USA)
Rated current A
for each inverter
model *1
Rated current A
for each inverter
model *1
01 01 —
01 01 —