L300p dynamic braking selection tables – Hitachi L300P User Manual
Page 197
L300P Inverter
Motor C
ontrol
Acc
e
ssor
ies
5–7
L300P
Dynamic Braking
Selection Tables
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
braking torque depends on your particular application. Other tables in this section will help you
choose the proper resistor.
2 to 20 hp (1.5 to 15 kW)
Using
Internal Resistor
Using Optional
External Resistor
Performance @
Minimum Resistance
Minimum
Resistance
@ 100%
Braking
Duty
Cycle,
Ohms
Voltage
Class
Model Number,
L300P
Motor
hp
Braking
Unit
Braking
Torque
@ 60Hz,
(without
external
resistor),
%
External
Resistance,
Ohms
Braking
Torque
@60Hz,
%
Minimum
Resistance,
Ohms
Max.
Braking
Duty
Cycle,
%
200V
–015LFU2
2
Built-in
50
35
200
35
10
100
–022LFU2
3
Built-in
20
35
160
35
10
100
–037LFU2
5
Built-in
20
35
100
35
10
100
–055LFU2
7.5
Built-in
20
17
80
17
10
50
–075LFU2
10
Built-in
20
17
80
17
10
50
–110LFU2
15
Built-in
10
17
55
17
10
50
–150LFU2
20
Built-in
10
17
50
17
10
50
400V
–015HFU2, HFE2
2
Built-in
50
100
200
100
10
300
–022HFU2, HFE2
3
Built-in
20
100
200
100
10
300
–037HFU2, HFE2
5
Built-in
20
100
140
70
10
200
–055HFU2, HFE2
7.5
Built-in
20
70
100
70
10
200
–075HFU2, HFE2
10
Built-in
20
70
100
50
10
150
–110HFU2, HFE2
15
Built-in
10
70
55
50
10
150
–150HFU2, HFE2
20
Built-in
10
70
50
50
10
150