Hitachi L2002 - Page 210

Dynamic Braking
Motor Control
Accessories
5–6
Use one BRD–E2 braking unit for the braking torque listed in the following table.
Note the column meanings in the tables:
• Column “A” = Average braking torque from 60 Hz to 3 Hz.
• Column “B” = Average braking torque from 120 Hz to 3 Hz
Connect a second braking unit in parallel for additional braking torque listed in the
following table.
L2002 Inverter 200V Models Braking Torque with BRD–E2 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
002NFE(F)2/NFU2 1/4 50% 150% 120%
004NFE(F)2/NFU2 1/2 50% 150% 120%
005NFE(F)2/NFU2 3/4 50% 150% 120%
007NFE(F)2/NFU2 1 50% 100% 80% 150% 120%
011NFE(F)2/NFU2 1.5 50% 60% 60% 100% 80%
015NFE(F)2/NFU2 2 50% 50% 50% 100% 80%
022NFE(F)2/NFU2 3 20% 50% 50% 100% 80%
037LFU2 5 20% 40% 40% 60% 60% 100% 100% 150% 120%
055LFU2 7.5 20% 30% 30% 50% 50% 70% 70% 100% 80%
075LFU2 10 20% 20% 20% 40% 40% 50% 50% 80% 80%
L2002 Inverter 200V Models Braking Torque with TWO (2) BRD–E2 Braking Units
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
002NFE(F)2/NFU2 1/4 50% 150% 120%
004NFE(F)2/NFU2 1/2 50% 150% 120%
005NFE(F)2/NFU2 3/4 50% 150% 120%
007NFE(F)2/NFU2 1 50% 150% 120%
011NFE(F)2/NFU2 1.5 50% 100% 80%
015NFE(F)2/NFU2 2 50% 100% 80%
022NFE(F)2/NFU2 3 20~40% 70% 70% 150% 120%
037LFU2 5 20~40% 50% 50% 110% 90%
055LFU2 7.5 20% 30% 30% 80% 80% 100% 100% 150% 150%
075LFU2 10 20% 30% 30% 60% 60% 80% 80% 100% 100%