Watt Drive V3000-015HF, Руководство пользователя

Страница: 90 / 180

Explanation of Function
Seite 90 / 180
Electrionic thermal function
Set the Inverter according to motor rated current to protect
the motor from overloading, overheating and damage.
A warning signal is outputted before tripping on electronic
thermal Protection.
(1) Electronic thermal level
Function
code
Setting range Description
b012/b212
/
b312
Rated Current x 0.2 to
Rated Current x 1.2
Units:A
(example) V3000-110LF
Motor current: 46A
Setting range: 9.2 to 55.2A
When electronic thermal level b012=46A,
time limit characteristic is right diagram.
(2) Electronic thermal characteristic
Frequency characteristic is added up to set value of b012.
Function
code
Deta
Electronic thermal
characteristic
00
Reduced torque
characteristic
01
Constant torque
characteristic
b013/b213
/b313
02 Free setting
(a) Reduced torque charcteristic
To add to the time limit characteristic set with the reduced time rate b012/b212/b312 by each frequency.
(b) Constant torque characteristic
Set this in to use constant torque motor case.
b012/b212/b312:1
st
/2
nd
/3
rd
electric thermal level
b013/b213/b313:1
st
/2
nd
/3
rd
electric thermal characteristic
selection
b015/b017/b019:free electric thermal frequency 1/2/3
b016/b018/b020:Free thermal current 1/2/3
C021-C025:Intelligent output terminal
Relation code
53.4
(116%)
55.2
(120%)
Trip time (s)
Motor current (A)
(Ratio for inverter rated
current)
60
0.5
0
69
(150%)
Reduced time ratio
Inverter
output
Frequency
X1.0
5
2
0
60
X0.8
X0.6
0
When output frequency of general motor
decreases, cooling function of self-cooled fan
will fall.
Reduced torque characteristic is calculated
Motor current (A)
(Ratio for inverter rated current)
(example)b012 = 46(A), when output frequency = 20Hz
Trip time (S)
60
0.5
42.7
(92.8%)
44.2
(96%)
52.2
(120%
)
0
(Example)b012 = 46(A), when output frequency=2.5Hz.
Trip time
(S)
6