Hitachi WJ200-001L, Instruction Manual, Page: 134 / 680

3

49
Electronic thermal characteristic curve:
The characteristic curve depends on dual rate
setting in

as follows.
Electronic thermal characteristic:
The characteristic curve is unique, but reduction
rate depending on frequency is selected in

.

Reduced Torque (

=

)
 Constant Torque (

=

)
Example: WJ200-015L**, Base FQ=60Hz, ND setting (Rated current 9.6A= b012)
10.56
(110%)
11.5
(120%) 14.4[A]
(150%)
0
60
3.0
Trip time
[s]
60Hz (Reduction rate: x1.0)
Reduction rate
Output frequency [Hz]
x1.0
5 16 50
x0.8
x0.6
0
6
20
60 0
Base FQ
Motor current [A]
8.45
(88%)
9.2
(96%) 11.5[A]
(120%)
0
60
3.0
Trip time
[s]
20Hz (Reduction rate: x0.8)
Motor current [A]
8.8
(110%)
12.0
(150%) 16.0[A]
(200%)
Trip time
[s]
60Hz (Reduction rate: x1.0)
Motor current [A]
7.04
(88%)
9.6
(120%) 12.8[A]
(160%)
Trip time
[s]
0Hz (Reduction rate: x0.8)
Motor current [A]
Example: WJ200-015L**, Base FQ=60Hz, HD setting (Rated current 8.0A= b012)
Reduction rate
Output frequency [Hz]
x1.0
x0.8
3 60
0
0
60
0.5
0
60
0.5
Trip time (s)
Percentage of
b012/b212
60
3.0
0
200% 150% 110%

=

(HD)
Trip time (s)
Percentage of
b012/b212
60
0.5
0
150% 120% 110%

=

(ND)