ABB ACS880 Series, Инструкция к добавке

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Centrifuge program features 17

How to start and stop the Centrifuge
The Start command starts the Centrifuge operating sequence or continues the sequence
after the Stop command. The Stop command stops the centrifuge at any phase of the
sequence.
Note:
•
To start the centrifuge after a fault or power switch-off, make sure to give a rising edge
of the start signal.
•
To start or stop the Centrifuge through I/O controls, select the source of start and stop
commands separately for each control location (EXT1 or EXT2) with parameters
20.01...20.10. See
ACS880 primary control program firmware manual
(3AUA0000085967[English]) .
•
Use the I/O controls only when the drive is in external control mode. The “Local” on the
first row of the panel indicates local control. Press LOC/REM key to shift between local
control and external control. See
ACS-AP-x assistant control panels user’s manual
(3AUA0000085685[English]).

How to reset the Centrifuge sequence
The Centrifuge reset sequence starts the Centrifuge sequence from the start and clears all
the actual signals in group
09 Centrifuge .
To reset the Centrifuge sequence through I/O controls, stop the drive and set the digital
input defined as the source for resetting. See parameter
75.01 Pattern reset selection
(page 34 ).
Note: Check that the selected digital input DI is not used for other purposes.
7 Counter reaches the set
washing time. Washing stops. 77.11 Washing time
8 Drive reaches the
spinning speed. Drive shifts to constant
speed and the spinning time
counter starts. 77.02 Spin speed
9 Counter reaches the set
spinning time. Drive shifts to deceleration. 77.12 Spinning time
10 Drive reaches the
unloading speed. Drive shifts to constant
speed and unload counter
starts. 77.03 Unload speed and
77.08 Dec time to unload
speed
11 Counter reaches the set
unloading time. Relay output RO3 de-
energises switching off the
unloading. 77.13 Unloading time
12 Centrifuge comes to
standstill. See step 1. 77.09 Dec time to zero
speed
Stage
No. Stage description Centrifuge operation See parameter