Dual Rating Selection - Hitachi WJ200 Series Instruction Manual

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.
Func.
Name
Code
b049
Dual Rating Selection
When changed, the rated output current and related items are changed automatically.
Differences between HD and ND are described below.
Usage For heavy load with high torque required at start,
acceleration or deceleration
Applications Elevators, cranes, conveyers, etc.
Rated current 1.0A (3-phase 200V 0.1kW)
(example)
Overload current 150% 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.)
Func.
Name
code
V/f characteristic A044
curve A244
DC braking force A054
for deceleration
DC braking force A057
at start
Carrier
frequency during A059
DC braking
Overload b022
restriction level b222
Overload b025
restriction level
2
Carrier b083
frequency
H003
Motor capacity
H203
"b" Function
Description
00... (CT mode) / 01... (VT mode)
HD
HD
Range
00: Const. torque 00: Const. tq.
01: Reduced torque
02: Free V/F
03: SLV
0 to 100 (%) 0 (%)
0 to 100 (%) 0 (%)
2.0 to 15.0(kHz) 5.0(kHz)
(0.20 to 2.00) 1.50× Rated
× Rated current (A) current (A)
2.0 to 15.0(kHz) 5.0(kHz)
Depends on
0.1 to 15(kW)
type
Mode
For normal load without
high torque required.
fans, pumps,
air-conditionings
1.2A (3-phase 200V
0.1kW)
120% 60 sec.
initial data Range
00: Const. torque
01: Reduced tq.
02: Free V/F
0 to 70 %
0 to 70 %
2.0 to 10.0(kHz)
(0.20 to 1.50)
× Rated current (A)
2.0 to 10.0(kHz)
0.2 to 18.5(kW)
3−5
Run Defaults
Lnitial data Units
Edit
00 −
ND
ND
initial data
00: Const. tq.
0 (%)
0 (%)
2.0(kHz)
1.20× Rated
current (A)
2.0(kHz)
One size up
to HD