Electronic Thermal Improve - Hitachi WJ200-001S Instruction Manual

Electronic thermal improve

I t is with separation action possibility in inverter use and the electronic thermal for the motor when I establish
•
it with b910 00. It depends on plural pattern / rate and becomes able to subtract electronic thermal
≠
integrated value from in consideration of the heat production of the motor then.
I establish subtract rate in each pattern in b911/b912. Please establish the large value with enough margins for
the characteristic of the application motor.
It becomes b910 = 00 and the conventional action not to separate motor use and inverter use when I establish it.
I establish electronic thermal totalizing gain of b910=01 - 03:00 in b913.
•
If I establish 100%, it becomes the totalizing same as before. The time to trip gets longer when you establish
b913 small, and, please warn him because a protection is a direction becoming late.
Characteristics of electronic thermal protection for inverter according to b910 setting
Item Item Item Item
Characteristic
s
b012 b 020
～
Time constant
(accumulation)
Subtraction
Error Code
Characteristics of electronic thermal protection for motor according to b910 setting
Item Item Item Item
Characteristic
s
b012 b 020
～
Time constant
(accumulation)
Subtraction
Error Code
b910 b910 e lectronic thermal protection subtraction function selection electronic thermal protection subtraction function selection
b910 b910 electronic thermal protection subtraction function selection electronic thermal protection subtraction function selection
（ （ （ （
00 00
00 00
Characteristics for inverter thermal protection
Before Ver.3.0
(common to Motor) (Identical to the constant torque characteristics
valid invalid
Dual Rating (2 modes : VT/VT)
Not Available
E38
E05
b910 b910 b910 b910 electronic thermal protection subtraction function selection electronic thermal protection subtraction function selection e lectronic thermal protection subtraction function selection electronic thermal protection subtraction function selection
（ （ （ （
00 00
00 00
Before Ver.3.0
(Common to Not common with inverter when subtraction valid
inverter)
valid Valid (only for motor)
Time constant for 1 mode of CT is used
Prepared for Dual
(b913 is applied)
rating (CT/VT)
Subtraction
max to zero in
Not Available
10 minutes.
E05
01 01 02 02
01 01 02 02
is fixed
before Ver.3.0 with thermal level b012 of
rated current)
I nverter Electronic Thermal Protection
（
01 01 02 02
01 01 02 02
Subtraction
max to zero in
the time defined
with b911
Ver.3− − − − 17
03 03
03 03
）
03 03
03 03
Subtraction
with time
constant set as
b912