Electronic Thermal Characteristic Curve; Electronic Thermal Characteristic - Hitachi WJ200 Series Instruction Manual

Electronic thermal characteristic curve: The characteristic curve depends on dual rate
setting in b049 as follows.
b049=00
(HD)
Trip time (s)
60
3.0
0
109% 150%
Electronic thermal characteristic: The characteristic curve is unique, but reduction
rate depending on frequency is selected in b013.
• Reduced Torque (b013=00)
Reduction rate
x1.0
x0.8
x0.6
16
0 5 50
0
6 20 60
Output frequency [Hz]
• Constant Torque (b013=01)
Reduction rate
x1.0
x0.8
0 3 60
Output frequency [Hz]
Percentage of
200%
b012/b212
Example: WJ200-015L**, Base FQ=60Hz, ND setting (Rated current 9.6A= b012)
60Hz (Reduction rate: x1.0)
Trip time
[s]
60
3.0
0
11.1
Base FQ
(116%)
Motor current [A]
Example: WJ200-015L**, Base FQ=60Hz, HD setting (Rated current 8.0A= b012)
60Hz (Reduction rate: x1.0)
Trip time
[s]
60
0.5
0
8.72
(109%)
Motor current [A]
b049=01
(ND)
Trip time (s)
60
0.5
0
116% 120% 150%
20Hz (Reduction rate: x0.8)
Trip time
[s]
60
3.0
11.5 14.4[A]
(120%) (150%)
3Hz (Reduction rate: x0.8)
Trip time
[s]
60
0.5
12.0 16.0[A]
(150%) (200%)
3−49
Percentage of
b012/b212
0
8.9 9.2 11.5[A]
(92.8%) (96%) (120%)
Motor current [A]
0
7.0 9.6 12.8[A]
(87.2%) (120%) (160%)
Motor current [A]