ABB RCNA-01 Manual de usuario descargar pdf (Pagina 314)

100

101

310 Parameter listing and descriptions

ACH550-01 User's Manual

Starting order

counter

The operation of the

starting order

counter:

• The relay output

parameter

definitions

(1401…1403 and

1410…1412)

establish the initial

motor sequence.

(The lowest

parameter number

with a value 31

(PFA) identifies the

relay connected to

1PFA, the first motor, and so on.)

• Initially, 1PFA = speed regulated motor, 2PFA = 1st auxiliary motor,

etc.

• The first autochange shifts the sequence to: 2PFA = speed regulated

motor, 3PFA = 1st auxiliary motor, …, 1PFA = last auxiliary motor.

• The next autochange shifts the sequence again, and so on.

• If the autochange cannot start a needed motor because all inactive

motors are interlocked, the drive displays an alarm (2015,

PFA I LOCK).

• When the ACH550 power supply is switched off, the counter

preserves the current Autochange rotation positions in permanent

memory. When power is restored, the Autochange rotation starts at

the position stored in memory.

• If the PFA relay configuration is changed (or if the PFA enable value

is changed), the rotation is reset. (See the first bullet above.)

Code Description Range

No aux 1 aux

motor

2 aux

motors

PID output

P 8119

100%

Output

MAX

Area

frequency

Autochange

is allowed

1 2 ... 309 310 311 312 313 314 315 316 317 318 319 ... 473 474

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ABB RCNA-01 Manual de usuario Pagina 314

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