User guide

5 Function blocks

5.11 L_CamSyncIn - synchronous/oversynchronous clutch-in

194

Lenze · 9400 function library · Reference manual · DMS 6.7 EN · 08/2014 · TD05

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5.11.3 Oversynchronous clutch-in

Oversynchronous clutch-in is always done in time-controlled mode. In contrast to the synchronous

clutch-in, a distance must always be caught up. The distance may be caught up due to the defined

ramp and/or the position of the touch probe sensor. After the catching-up process, the

dnSpeedOut_s speed output follows the dnSpeedIn_s master speed.

[5-29] Principle "Oversynchronous clutch-in"

Preconditions

The following conditions must be fulfilled for oversynchronous clutch-in:

1. The difference between the position of the touch probe sensor and the basic position of the tool

at standstill must be lower

than the difference between the basic function and the starting

function of the synchronous range:

[5-30]

2. The maximum oversynchronous speed to be parameterised in C05602 must be greater than the

master speed. The lower the distance of the touch probe sensor from the starting position of the

synchronous range, the greater must be the oversynchronous speed.

If the preconditions mentioned before are not fulfilled, clutch-in does not take place. The bError out-

put is set to TRUE and the cause of error is displayed bit-coded in C05609. Remedy: Increase value

of C05602 until the error does not occur anymore.

Sequence

The sequence corresponds to the sequence for a synchronous clutch-in described in the previous

chapter. Synchronous clutch-in

( 191)

Master

Slave

dnTpPos_p dnOpenPos_p dnSyncPos_p

0 5000 10000 15000 20000 25000 30000 35000 40000 45000 50000 55000 60000 65000

6000 20000