Hitachi P1-00041HFEF, Basic Manual

Page: 81 / 131

4-33
Chapter 4
For parameter configuration
[bC110]
～
[bC125]
Electronic thermal protection
Code/Name Range (unit) Initial value
bC110
Electronic thermal
level setting, 1st-motor
Motor rated
current ×
(0.20
～ 3.00)
Motor rated
current
×1.00
bC111
Electronic thermal characteristic
selection, 1st-motor
00(Reduced
torque (VT))/
01(Constant
torque (CT))/
02(Free setting)
00(JPN)/
01(EU)(USA)
(ASIA)(CHN)
bC112
Electronic thermal Subtraction
function enable, 1st-motor
00(Disable)/
01(Enable)
01
bC113
Electronic thermal
Subtraction time, 1st-motor
1
～
1000(s) 600
bC-14
Electronic thermal counter
memory selection at Power-off
00(Disable)/
01(Enable)
01
bC120
Free electronic thermal
frequency-3, 1st-motor
0.00
～
bC122(Hz)
0.00
bC121
Free electronic thermal
current-1, 1st-motor
Inverter rated
current ×
(0.00
～
1.00)
0.00
bC122
Free electronic thermal
frequency-2, 1st-motor
bC120
～
bC124(Hz)
0.00
bC123
Free electronic thermal
current-2, 1st-motor
Inverter rated
current ×
×(0.00
～
1.00)
0.00
bC124
Free electronic thermal
frequency-3, 1st-motor
bC122
～
590.00(Hz)
0.00
bC125
Free electronic thermal
current-3, 1st-motor
Inverter rated
current ×
×(0.00
～
1.00)
0.00
・
With [bC112], it is possible to subtract the thermal
integral value of the motor.
(Example) When [bC111]=00, Inverter rated current:64A, [bC110]=64(A),
Base frequency [Hb104]=60Hz, Output frequency=20Hz
・
In case of output frequency = 16Hz (base=50Hz) or 20Hz
(base = 60hz), the reduction scale is ×0.8, then the
inverter will trip when the output current of
120%(150%×0.8) flows continuously within 60s
according to the curve.
[bC210]
～
[bC225]
(Example) When [bC111]=01, Inverter rated current:64A
，
[bC110]=64(A),
Base frequency[Hb103]=60Hz, Output frequency=2.5Hz
・
In case of output frequency = 2.5Hz, the reduction scale
is x0.9, then, the inverter will trip when the output
current of 135%(=150%×0.9) flows continuously within
60s according to the curve.
(Example) When [bC111]=02, and there is Output frequency [bC122]
2nd motor
When Intelligent Input terminal 024[SET] is enabled.
Code/Name
Range
(unit)
Initial
value
bC210
Electronic thermal level, 2nd-motor Same as bC110
bC211
Electronic thermal characteristic
selection, 2nd-motor
Same as bC111
bC212
Electronic thermal subtraction function
selection, 2nd-motor
Same as bC112
bC213
Electronic thermal subtraction time,
2nd-motor
Same as bC113
bC220
Free setting, electronic thermal
frequency (1), 2nd-motor
Same as bC120
bC221
Free setting, electronic thermal current
(1), 2nd-motor
Same as bC121
bC222
Free setting, electronic thermal
frequency (2), 2nd-motor
Same as bC122
bC223
Free setting, electronic thermal current
(2), 2nd-motor
Same as bC123
bC224
Free setting, electronic thermal
frequency (3), 2nd-motor
Same as bC124
bC225
Free setting, electronic thermal current
(3), 2nd-motor
Same as bC125
Reduction
scale
Inverter output
frequency (Hz)
X1.0
5 16 50
X0.8
X0.6
0
6 20 60 0
Base frequency
55.8
(87.2%)
76.8
(120%)
102.4
(160%)
0
Motor current (A)
(Ratio to the inverter
rated current)
60
3.0
Trip time (s)
Reduction
scale
Inverter output
frequency (Hz)
X1.0
0 60
X0.9
X0.8
5 2.5
62.8
(98.1%)
86.4
(135%)
115.2
(180%)
Motor current (A)
(Ratio to the inverter
rated current)
60
3.0
0
Trip time(s)
Maximum frequency (Hz)
[Hb105][Hd105]
[bC125]
[bC123]
[bC125]
[bC120]
[bC122]
[bC124]
0
Current
output (A)
Trip time (s)
60
3.0
(x) (y) (z) 0
Output current (A)
(x)
：
[bC123]×109%
(y)
：
[bC123]×150%
(z) ： [bC123]×200%