Hitachi WJ200 Series

3−5
Dual Rating Selection
The WJ200 series inverter has Dual Rating, so that it can work in two different types of
load condition, Constant torque application and Variable torque application. Select
parameter b049 depending on your application.
“b” Function
Run
Mode
Edit
Defaults
Func.
Code
Name Description Lnitial data Units
b049
Dual Rating Selection
00… (CT mode) / 01… (VT mode)
U
00
−
When changed, the rated output current and related items are changed automatically.
Differences between HD and ND are described below.
HD ND
Usage For heavy load with high torque required at start,
acceleration or deceleration
For normal load without
high torque required.
Applications Elevators, cranes, conveyers, etc. fans, pumps,
air-conditionings
Rated current
(example)
1.0A (3-phase 200V 0.1kW) 1.2A (3-phase 200V
0.1kW)
Overload current 150% 60 sec. 120% 60 sec.
Initial values of HD and ND are different shown as below table. Be sure to note that
when the dual rating selection b049 is changed except H003/H203, those initial values
are also changed. (Even if currently set value is within the range of both HD and ND,
data is initialized when b049 is changed.)
Name
Func.
code
HD ND
Range initial data Range initial data
V/f characteristic
curve
A044
A244
00: Const. torque
01: Reduced torque
02: Free V/F
03: SLV
00: Const. tq. 00: Const. torque
01: Reduced tq.
02: Free V/F
00: Const. tq.
DC braking force
for deceleration
A054 0 to 100 (%) 0 (%) 0 to 70 % 0 (%)
DC braking force
at start
A057 0 to 100 (%) 0 (%) 0 to 70 % 0 (%)
Carrier
frequency during
DC braking
A059
2.0 to 15.0(kHz) 5.0(kHz) 2.0 to 10.0(kHz) 2.0(kHz)
Overload
restriction level
b022
b222
(0.20 to 2.00)
× Rated current (A)
1.50× Rated
current (A)
(0.20 to 1.50)
× Rated current (A)
1.20× Rated
current (A)
Overload
restriction level
2
b025
Carrier
frequency
b083 2.0 to 15.0(kHz) 5.0(kHz) 2.0 to 10.0(kHz) 2.0(kHz)
Motor capacity
H003
H203
0.1 to 15(kW)
Depends on
type
0.2 to 18.5(kW)
One size up
to HD