Brochure

16
Torque characteristics
150
130
95
80
55
45
35
100
1 6 20 60 120
Output torque (%)
Base frequency = 60Hz Base frequency = 50Hz
100
130
150
75
55
45
35
90
1 5 16.7 50 120
Output frequency (Hz)Output frequency (Hz)
Output torque (%)
Continuous performance
Short time performance
Short time performance
Continuous performance
Torque characteristics
ISO 14001
JQA-EM6974
ISO 9001
JQA-1153
Hitachi variable frequency
drives (inverters) in this
brochure are produced at the
factory registered under the
ISO 14001 standard for
environmental manegement
system and the ISO 9001
standard for inverter quality
management system.