Component Descriptions

Motor Control
Accessories
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 Tb/Tc ≤ 0.1 sec.
Note 4: BRD maximum continuous On time Tb ≤ 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
Tb
Tc
output
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