Mo tor cont rol acces s or ies – Hitachi L100 User Manual
Page 125
Component Descriptions
Mo
tor
Cont
rol
Acces
s
or
ies
5–6
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.
Note 1:
A = Average braking torque from 60 Hz to 3 Hz.
Note 2:
B = Average braking torque from 120 Hz to 3 Hz.
Note 3:
BRD maximum duty cycle = 10%, where T
b
/T
c
≤
0.1 sec.
Note 4:
BRD maximum continuous On time T
b
≤
10 sec.
L100 Inverter 400V Models
BRD–EZ2 Braking Unit
Model Number
HP
Braking torque
without
braking unit
Using built-in
resistor only
External resistor added
HRB1
HRB2
HRB3
A
B
A
B
A
B
A
B
004HFE/HFU
1/2
50%
150%
120%
Over-range
Over-range
Over-range
007HFE/HFU
1
50%
100%
80%
150%
120%
Over-range
Over-range
015HFE/HFU
2
50%
60%
60%
100%
80%
150%
120%
Over-range
022HFE/HFU
3
20%
50%
50%
100%
80%
150%
120%
Over-range
030/040HFE/HFU
5
20%
40%
40%
60%
60%
120%
100%
150%
120%
055HFE/HFU
7.5
20%
30%
30%
50%
50%
80%
60%
100%
80%
075HFE/HFU
10
20%
—
—
40%
40%
60%
60%
80%
80%
f
time
T
b
T
c
output
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