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64 Program features
Settings
(page
(page
(page
Brake chopper
A brake chopper can be used to handle the energy generated by a decelerating
motor. When the DC voltage rises high enough, the chopper connects the DC circuit
to an external brake resistor. The chopper operates on the pulse width modulation
principle.
For information on external brake choppers, refer to their documentation.
Note:
For runtime braking, overvoltage control (parameter
)
needs to be disabled for the chopper to operate.
Settings
) and
(page
);
Supply voltage range [V AC]
(see
Level [V DC (% of
U
DCmax
)]
208…240 380…415 440…480
500
525…600
660…690
Overvoltage fault limit
489/440*
800
878
880
1113
1218
Overvoltage control limit
405 (125)
700 (125)
810 (125)
810 (120) 1013 (125) 1167 (125)
Internal brake chopper at 100%
pulse width
403 (124)
697 (124)
806 (124)
806 (119) 1008 (124) 1159 (124)
Internal brake chopper at 0%
pulse width
375 (116)
648 (116)
749 (116)
780 (116)
936 (116)
1077 (116)
Overvoltage warning limit
373 (115)
644 (115)
745 (115)
776 (115)
932 (115)
1071 (115)
U
DCmax
= DC voltage at upper
bound of supply voltage range
324 (100)
560 (100)
648 (100)
675 (100)
810 (100)
932 (100)
DC voltage at lower bound of
supply voltage range
281
513
594
675
709
891
Undervoltage control and
warning limit
239 (85)
436 (85)
505 (85)
574 (85)
602 (85)
757 (85)
Charging activation/standby
limit
225 (80)
410 (80)
475 (80)
540 (80)
567 (80)
713 (80)
Undervoltage fault limit
168 (60)
308 (60)
356 (60)
405 (60)
425 (60)
535 (60)
*489 V with frames R1…R3, 440 V with frames R4…R8.
Содержание ACS860
Страница 1: ... ABB INDUSTRIAL DRIVES ACS860 primary control program Firmware manual ...
Страница 4: ......
Страница 10: ...10 Table of contents ...
Страница 18: ...18 Using the control panel ...
Страница 24: ...24 Control locations and operating modes ...
Страница 54: ...54 Program features ...
Страница 78: ...78 Program features ...
Страница 90: ...90 Application macros ...
Страница 342: ...342 Additional parameter data ...
Страница 380: ...380 Fault tracing ...
Страница 381: ...Fault tracing 381 ...
Страница 382: ...382 Fault tracing ...
Страница 436: ...436 Control chain diagrams ...