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128 Program features
Note that “
” type parameters (see page
) expect a 32-bit real (floating
point) source – in other words, parameters
…
can be used as a value
source of other parameters while
…
cannot.
To use a 16-bit integer (received in DDCS data sets) as the source of another
parameter, write the value into one of the “real32” type storage parameters
(
). Select the storage parameter as the source, and define a suitable
scaling method between the 16-bit and 32-bit values in parameters
Settings
Parameter group
(page
Reduced run function
A “reduced run” function is available for inverter units consisting of parallel-connected
inverter modules. The function makes it possible to continue operation with limited
current even if one (or more) module is out of service, for example, because of
maintenance work. In principle, reduced run is possible with only one module, but the
physical requirements of operating the motor still apply; for example, the modules
remaining in use must be able to provide the motor with enough magnetizing current.
Activation of the reduced run function
Note:
For cabinet-built drives, the wiring accessories and the air baffle needed during
the procedure are available from ABB, and are included in the delivery.
WARNING!
Follow the safety instructions provided for the drive or
inverter unit in question.
1. Disconnect the supply voltage and all auxiliary voltages from the drive/inverter
unit.
2. If the inverter control unit is powered from the faulty module, install an extension
to the wiring and connect it to one of the remaining modules.
3. Remove the module to be serviced from its bay. See the appropriate hardware
manual for instructions.
4. If the Safe torque off (STO) function is in use, install jumpering in the STO wiring
in place of the missing module (unless the module was the last on the chain).
5. Install an air baffle to the top module guide to block the airflow through the empty
module bay.
6. In case the inverter unit has a DC switch with a charging circuit, disable the
appropriate channel on the xSFC-xx charging controller.
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 ...