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114 Program features
Settings
Parameters
(page
),
),
), and
(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.
The internal brake choppers of ACS880 drives start conducting when the DC link
voltage reaches 1.156 ×
U
DCmax
. 100% pulse width is reached at approximately 1.2 ×
U
DCmax
, depending on supply voltage range – see table under
above. (
U
DCmax
is the DC voltage corresponding to the maximum of the AC
supply voltage range.) 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
Parameters
(page
) and
(page
);
parameter group
(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 ACS880-01 Series
Страница 1: ...ABB industrial drives Firmware manual ACS880 ESP control program option N5600 ...
Страница 4: ......
Страница 12: ...12 Table of contents ...
Страница 20: ...20 Introduction to the manual ...
Страница 22: ...22 Using the control panel ...
Страница 28: ...28 Control locations and operating modes ...
Страница 145: ...Application macros 145 Fieldbus control macro This application macro is not supported by the current firmware version ...
Страница 146: ...146 Application macros ...
Страница 502: ...502 Parameters ...
Страница 606: ...606 Fault tracing ...
Страница 662: ...662 Control chain diagrams ...
Страница 664: ...Contact us www abb com drives www abb com drivespartners 3AXD50000041193 Rev A EN EFFECTIVE 2017 06 30 ...