Siemens SIMOTICS T-1FW3 - Page 110

Configuration
5.3 Braking resistors (armature short-circuit braking)
1FW3 complete torque motors
108 Configuration Manual, 08/2020, A5E46027705B AA
Table 5- 4 Dynamic braking 1FW3, SH 280 Standard and High Speed
Motor type
Braking
resistor
external
R
opt
[Ω]
Average braking torque
M
br av
[Nm]
Max. braking
torque
M
br rms
[Nm]
rms braking current
I
br rms
[A]
without external
braking resistor
with external
braking resistor
without external
braking resistor
with external
braking resistor
Standard
1FW3281-2☐E
0.63
850
1230
1520
94
85
1FW3281-2☐G
0.5
640
1230
1530
148
133
1FW3283-2☐E
0.48
1120
1720
2150
131
118
1FW3283-2☐G
0.37
840
1720
2150
205
184
1FW3285-2☐E
0.36
1520
2450
3050
184
166
1FW3285-2☐G
0.28
1120
2450
3050
285
255
1FW3287-2☐E
0.25
2050
3450
4250
265
235
1FW3287-2☐G
0.19
1500
3450
4300
410
370
High Speed
1FW3281-3☐J
0.36
480
1230
1530
230
205
1FW3281-3☐M
0.26
360
1220
1520
335
300
1FW3281-3☐P
0.19
300
1240
1540
470
415
1FW3283-3☐J
0.24
620
1710
2150
335
300
1FW3283-3☐M
0.2
460
1710
2100
460
410
1FW3283-3☐P
0.15
385
1740
2150
620
560
1FW3285-3☐J
0.18
830
2450
3050
465
415
1FW3285-3☐M
0.16
630
2500
3100
620
550
1FW3285-3☐P
0.096
495
2450
3000
920
820
1FW3287-3☐J
0.14
1090
3450
4250
610
550
1FW3287-3☐M
0.098
830
3450
4300
930
830
1FW3287-3☐P
0.076
650
3400
4200
1210
1090