Lenze ECSCPxxx - Manual (Page 211)

Commissioning
Configuring the electrical shaft ("E−Shaft")
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211 EDBCSXP064 EN 8.0
6.18 Configuring the electrical shaft ("E−Shaft")
The "Electrical shaft" drive function is used with linear drives if several drives are to be
traversed with angular and speed synchronism, e.g. because they affect the same web.
The coupling is executed via a digital frequency signal which contains information on the
setpoint angle (setpoint position) and the setpoint speed.
Adjustable stretch factors serve to vary the material strength between the points of action
of the drives at the web. When the stretch factor = 1/1 (at the same mechanical ratio), both
drives move exactly in angular and speed synchronism. If the stretch factor is set higher
than 1, the slave drive moves faster than the master drive and distortion is built up.
Ways to implement the electrical shaft function:
ƒ Coupling via digital frequency input X8
ƒ Coupling via MotionBus (CAN) X4
ƒ Coupling via EtherCAT at AIF interface X1 (EMF2192IB EtherCAT communication
module required)
The digital frequency for angle and speed of the "electrical shaft" is determined by the
so−called digital frequency master. This master can be:
ƒ A master control with digital frequency output, CAN or EtherCAT interface.
ƒ A TTL encoder located at the web path or elsewhere at the machine.
ƒ A drive controller with digital frequency output, CAN or EtherCAT interface.