Lenze 8400 motec - Manual (Page 43)

Lenze · 8400 motec · Reference manual · DMS 4.1 EN · 08/2013 · TD05 43
3 Commissioning
3.6 Commissioning of the "Switch-off positioning" technology application
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Functional principle of a switch-off positioning without pre-switch off
In case of the switch-off positioning without pre-switch off shown above, it makes sense to use the
" Terminals 2 " control mode:
1. Set DI3 to HIGH level to activate CW rotation.
2. The drive accelerates along the acceleration ramp (
C00012 ) up to the traversing speed set in
C00039/3 .
3. After reaching the DI1 contact, the drive comes to a stop with quick stop (QSP) in the target
position.
4. Reset DI3 to LOW level and set DI4 to HIGH level to activate CCW rotation now.
5. The drive is accelerated along the acceleration ramp (
C00012 ) up to the traversing speed set in
C00039/3 .
6. After the DI2 contact has been reached, the drive is braked to standstill with quick stop (QSP) in
the initial position.

Tip!
• In order to avoid positioning inaccuracy due to signal propagation delays, the initiators
can be directly evaluated by the drive controller. Limit switch evaluation can be
configured in the drive controller. In code C00488/x you can change the method of
detecting position signals from level evaluation to edge evaluation.
• In order to prevent unintended movements of the load in the target position, the use of
a holding brake is recommended as an alternative to DC-injection braking (limited
torque).
Commissioning steps
As shown in illustration
[3-2] , below find a description of the commissioning steps of the "Switch-
off positioning" application without pre-switch off.
Please observe the sequence of the steps in the following chapters and follow them through
carefully. This will help you to commission your controller quickly and as safely as possible:
 Prepare controller for commissioning ( 44)
 Creating an »Engineer« project & going online ( 45)
 Parameterising the motor control ( 46)
 Parameterise application ( 48)
 Saving parameter settings safe against mains failure ( 50)
 Enable controller and test application ( 50)