E6581697
F-46
6
2) Optional dynamic braking resistors
Optional dynamic braking resistors are listed below. All these resistors are 3%ED in operation rate
Braking resistor
Inverter type
Type-form Rating
Continuous
regenerative braking
allowable capacity
VFMB1S-2002 to 2007PL PBR-2007
120W-200
90W
VFMB1S-2015, 2022PL PBR-2022
120W-75
90W
VFMB1-4004 to 4022PL PBR-2007
120W-200
90W
VFMB1-4037PL PBR-4037
120W-160
90W
PBR3-4055 240W-80 96W
VFMB1-4055PL
PBR7-004W060 440W-60
130W
PBR3-4075 440W-60 130W
VFMB1-4075PL
PBR7-004W060 440W-60
130W
PBR3-4110 660W-40 190W
VFMB1-4110PL
PBR7-008W030 880W-30
270W
PBR3-4150 880W-30 270W
VFMB1-4150PL
PBR7-008W030 880W-30
270W
Note 1: The data in Rating above refer to the resultant resistance capacities (watts) and resultant resistance
values (Ω).
Note 2: Braking resistors for frequent regenerative braking are optionally available. For more information,
contact your nearest inverter distributor.
Note 3: Type-form of “PBR-” indicate “with thermal fuse” type.
Note 4: The default setting values of parameter
f308 (Dynamic braking resistance) and f309 (Dynamic
braking resistor capacity) are applied to braking resistors PBR or PBR3.
Set the parameter
f308 and f309 to the rated value in above table when using PBR7.
3) Minimum resistances of connectable braking resistors
The minimum allowable resistance values of the externally connectable braking resistors are listed in the
table below.
Do not connect braking resistors with smaller resultant resistances than the listed minimum allowable
resistance values.
240V Class 500V Class
Inverter rated
output capacity
(kW)
Resistance
of standard
option
Minimum
allowable
resistance
Resistance
of standard
option
Minimum
allowable
resistance
0.2
200
91
- -
0.4
200
91 200 114
0.75
200
91 200 114
1.5
75
44 200 67
2.2
75
33 200 67
4.0 - -
160
54
5.5 - -
80
43
7.5 - -
60
28
11 - -
40
16
15 - -
30
16
Note: Be sure to set f308 (Dynamic braking resistance) at the resistance of the dynamic braking resistor
connected.
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