Lenze EVS9332xS - Manual (Page 25)

Configuration
Basic configurations
2.2.4 Master frequency coupling
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EDSVS9332S−EXT EN 2.0
2.2.4 Master frequency coupling
2.2.4.1 General system description
The master frequency coupling described here provides a digital setpoint transmission and
evaluation path between a setpoint source and one or several controllers. Here, the transmission
path can either be used as bus or cascade (see later explanation) for:
l phase−synchronous running
l speed−synchronous running
l speed−ratio synchronism
l Positioning control with driftfree standstill
In each controller the setpoint can be evaluated with a factor and, electrically buffered, be output at
the corresponding master frequency output.
The master frequency coupling is a purely digital setpoint transmission with all the advantages
involved:
l driftfree
l high−precision
l increased interference immunity
A drive system consists of a master and several slaves. For implementing a master frequency
coupling, three configurations are offered:
l master, C0005 = 5XXX (master integrator)
l slave for master frequency bus, C0005 = 6XXX (parallel connection)
l slave for master frequency cascade, C0005 = 7XXX (series connection)
Setpoint conditioning
In the setpoint arm the speed and phase setpoints are processed as absolute values.
Gearbox factors (C0032 and C0033)
The weighting factors C0032 and C0033 are in the setpoint channel of the corresponding drive
(slave). Here, a gearbox factor can be set.
Setting range of factors:
l C0032 from −32767 ... +32767
l C0033 from +1 ... +32767
The quotient is limited to a maximum of ±32767.