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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
Technologies Inc.
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