L300P Dynamic Braking Selection Tables - Hitachi L300P Series Instruction Manual

L300P
The L300P Series 200V and 400V class inverter models in the 2 to 20 hp range have internal
braking units. Additional stopping torque is available by adding external resistors. The required
Dynamic Braking
braking torque depends on your particular application. Other tables in this section will help you
Selection Tables
choose the proper resistor.
2 to 20 hp (1.5 to 15 kW)
Voltage Model Number,
Class L300P
–015LFU2
–022LFU2
–037LFU2
200V –055LFU2
–075LFU2
–110LFU2
–150LFU2
–015HFU2, HFE2
–022HFU2, HFE2
–037HFU2, HFE2
400V –055HFU2, HFE2
–075HFU2, HFE2
–110HFU2, HFE2
–150HFU2, HFE2
Without
External Resistor
Braking
Motor Braking Torque
hp Unit @ 60Hz,
%
2 Built-in 50
3 Built-in 20
5 Built-in 20
7.5 Built-in 20
10 Built-in 20
15 Built-in 10
20 Built-in 10
2 Built-in 50
3 Built-in 20
5 Built-in 20
7.5 Built-in 20
10 Built-in 20
15 Built-in 10
20 Built-in 10
Using Optional
External Resistor Minimum Resistance
Braking
External Minimum
Torque
Resistance, Resistance,
@60Hz,
Ohms Ohms
%
35 200
35 160
35 100
17 80
17 80
17 55
17 50
100 200
100 200
100 140
70 100
70 100
70 55
70 50
L300P Inverter
Performance @
Minimum
Resistance
@ 100%
Max.
Braking
Braking
Duty
Duty
Cycle,
Cycle,
Ohms
%
35 10 100
35 10 100
35 10 100
17 10 50
17 10 50
17 10 50
17 10 50
100 10 300
100 10 300
70 10 200
70 10 200
50 10 150
50 10 150
50 10 150
5–7