Hitachi L100 Instruction Manual page 125

5–6
L100 Inverter 400V Models
Model Number
004HFE/HFU
007HFE/HFU
015HFE/HFU
022HFE/HFU
030/040HFE/HFU
055HFE/HFU
075HFE/HFU
Note 1:
Note 2:
Note 3:
Note 4:
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Component Descriptions
The following table specifies the braking options for 400V class L100 inverters and the
braking torque for each option. Use BRD–EZ2 braking unit for 400V class inverters.
Braking torque
HP without
braking unit
1/2 50%
1 50%
2 50%
3 20%
5 20%
7.5 20%
10 20%
A = Average braking torque from 60 Hz to 3 Hz.
B = Average braking torque from 120 Hz to 3 Hz.
BRD maximum duty cycle = 10%, where T
BRD maximum continuous On time T
BRD–EZ2 Braking Unit
External resistor added
Using built-in
resistor only
HRB1
A B A B
150% 120% Over-range
100% 80% 150% 120%
60% 60% 100% 80%
50% 50% 100% 80%
40% 40% 60% 60%
30% 30% 50% 50%
— — 40% 40%
output
f
/T 0.1 sec.
b c
10 sec.
b
HRB2 HRB3
A B A B
Over-range Over-range
Over-range Over-range
150% 120% Over-range
150% 120% Over-range
120% 100% 150% 120%
80% 60% 100% 80%
60% 60% 80% 80%
time
T
b
T
c