Hitachi SH1 Series Basic Manual page 73

Chapter 4
[bC210] to [bC225]
(Example 2)
When [bC111]=01, Inverter rated current:64A，[bC110]=64(A),
Base frequency [Hb103]=60Hz, Output frequency=2.5Hz
Reduction
scale
X1.0
X0.9
X0.8
0 2.5 5
Trip time(s)
60
3.0
0
62.8 86.4
(98.1%) (135%)
・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 3) When [bC111] = 02, and Output frequency = [bC122]
Current
output (A)
[bC125]
[bC123]
[bC125]
0
[bC120]
[bC124]
[bC122]
Trip time (s)
60
3.0
0 (x) (y)
(x)：[bC123]×109% (y)：[bC123]×150% (z)：[bC123]×200%
2nd motor When Intelligent Input terminal 024[SET] is enabled.
Code/Name
bC210 Electronic thermal level setting,
2nd-motor
bC211 Electronic thermal characteristic
selection, 2nd-motor
bC212 Electronic thermal decrease function
selection, 2nd-motor
bC213 Electronic thermal decreasing time,
2nd-motor
bC220 Free electronic thermal frequency-1,
2nd-motor
bC221 Free electronic thermal current-1,
2nd-motor
bC222 Free electronic thermal frequency-2,
2nd-motor
bC223 Free electronic thermal current-2,
2nd-motor
bC224 Free electronic thermal frequency-3,
2nd-motor
bC225 Free electronic thermal current-3,
2nd-motor
Inverter output
60
frequency (Hz)
Motor current (A)
(Ratio to the inverter
115.2 rated current)
(180%)
Maximum frequency (Hz)
[Hb105][Hd105]
Output current (A)
(z)
Range Initial
(unit) value
Same as bC110
Same as bC111
Same as bC112
Same as bC113
Same as bC120
Same as bC121
Same as bC122
Same as bC123
Same as bC124
Same as bC125
For parameter configuration
Functional Safety terminal (STO)
Code/Name
bd-01
STO input display
selection
bd-02
STO input change time
bd-03
Display selection during
STO input change time
bd-04
Action selection after
STO input change time
*1) SH1 series don't support safety function.
For more information, Please contact your supplier or local Hitachi
inverter sales office.
※Notes on electronic thermal function !
The SH1 is implemented with the inverter-protected
electronic thermal (not user-configurable) separately
the Electronic thermal protection for the motor.
It operates as an electronic thermal with 150% ND
rated current and the constant torque characteristics
regardless of the setting of [Ub-03] Load type selection.
(Refer to the left (Example 2) ).
Even if [Ub-03] is changed to "Low Duty (LD)" or "Very
Low Duty (VLD)", check the carrier derating at the
"Normal Duty" rating.
In some cases, E039 Controller (inverter) overload
occurs.
For more information, Please contact your supplier or
local Hitachi inverter sales office.
4-30
[bd-01] to [bd-04]
*1）
Initial
Range (unit)
value
00(Warning(display))/
01(Warning(without 00
display))/02(Trip)
0.00 to 60.00(s) 1.00
00(Warning(display))/
01(Warning(without 00
display))
00(Maintain current
status)/ 00
01(Disable)/02(Trip)