Description of the states – Festo Контроллеры двигателя SFC-LAC User Manual

Page 330

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C. Object directory DS402 and CI

C−4

Festo GDCP−SFC−LACI−CO−EN en 0812NH

Description of the states

Status

Description

A

Start"

This state is assumed at power−on, on reset or when a reset
command is entered via the fieldbus. After execution of the startup
code, power to the power section is cut and the status branches
to B.

B

Not ready to switch on"

In this status logic self−tests are carried out. Internal working variĆ
ables are initialised. The mechanical brake is actuated, if fitted.
The power supply to the power section remains cut. The fieldbus
interface is initialised and communication enabled. The CI is initiaĆ
lised at the serial interface.

C

Switch on disabled"

The supply to the power section remains cut. The fieldbus and/or CI
communication initialised in status B is started, enabling controller
parameters, program records etc. to be modified.
As from this status, changes of state are possible only by way of
fieldbus commands or if a serious error has occurred.

D

Ready to switch on"

Power to the power section is switched on, power section self−tests
requiring no movement of the axis are carried out. By way of fieldbus
and/or CI communication controller parameters, program records
etc. can be modified (see also status E).

E

Switched on"

This status is practically identical to status D. In accordance with
DS402, power to the power section

must be switched on in E,

whereas in D it

may be switched on.

F

Operation enable"

The drive waits for positioning tasks and executes them. Normal
operating status after successful initialisation.

G

Quick stop active"

The Quick stop function has been activated. The drive runs as par−
ameterised (ramp) and then stops. The power section and motor
remain switched on, acceptance of positioning tasks is refused.

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