Festo Контроллер позиционирования CPX-CMAX User Manual

Page 124

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3. Drive functions

3−62

Festo P.BE−CPX−CMA X−CONTROL−EN en 0908NH

Mode of action of the Start, Ack, MC and RCx signals

Signal

Bit

Description

START

CPOS.START

Start of the first record of the record chaining

MC

SPOS.MC

End of the record chain

RC1

RSB.RC1

First record chain executed: After the first switch, bit 0 in the record
status byte (RSB) is set.

RCC

RSB.RCC

Record chain complete: At the end of positioning (MC=1), RCC is set to
show that all parametrised switches were executed.

RCE

RSB.RCE

Record chain error: A record switch has been parametrised which could
not be executed.

Tab. 3/22: Record parameters

Special case: Switching between force and position

If there is a record switch with switching from force control to
position control without changing direction, the drive first
stops. This is necessary so that the forces which were built up
before can be relieved.
Only afterwards is the new target position approached.

Restriction: Switching to a record with automatic profile

A record switch to a record with an automatic profile is only
possible with the switch condition MC".

If such a switch is set, a warning (W37) is signaled during
execution and the free profile is used.

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