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Control word / status word – Lenze 931W User Manual

Page 39

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Control word / status word

The Profidrive state machine

State diagram for positioning

6

39

K-HB 13.0001-EN

2.1

Stop!

In case of a jogging mode (JOG1 and JOG2) the software and hardware limit

switches are not evaluated!
The drive is not limited with regard to its permitted travel range!

During the positioning process, several options exist to intervene in the process:
1. A travel request can be interrupted using the command ”Intermediate stop” (bit 5 of

STW). The drive brakes along the set deceleration ramp to standstill. The current job

request is stopped and can be continued by cancelling the command ”Intermediate

stop”.

2. In the ”Intermediate stop” state, homing can be started.
3. A travel request can be cancelled using the command OFF1 (bit 0 of STW: Drive off),

OFF2 (bit 1 of STW: Coasting) or OFF3 (bit 2 of STW: Quick stop). The drives brakes

depending on the mode selected to standstill and then changes to S1 status

”Switch-on inhibit” (OFF2, OFF3) or S2 ”Ready to switch on”.

A travel request is terminated when the drive has reached its setpoint. This is displayed

with the status bit 10 ”Setpoint reached”.
The ”Concatenation” mode enables speed-controlled and positioning driving records to be

started without taking special measures. Here, the following driving records and waiting

times between the concatenated driving records are considered. Further information can

be obtained from the explanation of the object PNU 100.

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