Inovance MD800 Series - Fixed Length Control Function

Function Applications
-496-
Para.
No.
Name
Default
Value Range Description
Fb-02
Wobble step
0.0% 0.0% to 50.0%
This parameter determines the swing and
startup frequency.
The wobble running frequency is limited by
the frequency upper limit and frequency lower
limit.
Fb-03
Wobble cycle
10.0s 0.1s to 3000.0s
This parameter defines the time of a complete
wobble cycle.
Fb-04
Triangular wave rise
time coefficient
50.0% 0.1% to 100.0%
This parameter defines the percentage of the
triangular wave rise time relative to the
wobble cycle (Fb-03).
1. Calculation of the swing
When Fb-00 is set to 0 (relative to center frequency): Swing AW = Frequency reference (F0-07) x
Wobble amplitude (Fb-01).
When Fb-00 is set to 1 (relative to maximum frequency): Swing AW = Maximum frequency (F0-10) x
Wobble amplitude (Fb-01).
2. Calculation of the startup frequency
When the wobble function is enabled, the startup frequency is the value relative to the swing. That
is, Startup frequency = Swing AW x Wobble step (Fb-02).
When Fb-00 is set to 0 (relative to center frequency), the startup frequency is a variable.
When Fb-00 is set to 1 (relative to maximum frequency), the startup frequency is a fixed value.
3. Calculation of the triangular wave rise/fall time
Triangular wave rise time = Fb-03 (wobble cycle) x Fb-04 (triangular wave rise time coefficient) (unit:
s)
Triangular wave fall time = Fb-03 (wobble cycle) x [1 – Fb-04 (triangular wave rise time coefficient)]
(unit: s)
(Wobble cycle = Triangular wave rise time + Triangular wave fall time)
4.4.14 Fixed Length Control Function
The AC drive supports fixed length control. Length pulses can be sampled by a DI terminal assigned
with function 29 (length count input).
Para. No. Name
Default
Value Range Description
FB-05
Reference
length
1000 m 0 m to 65535 m
This parameter specifies the length value to be
controlled in fixed length control mode.
FB-06
Actual length
0 m 0 m to 65535 m
The actual length is a monitored value. Actual
length (Fb-06) = Number of pulses sampled by
DI/Number of pulses per meter (Fb-07).
FB-07
Number of
pulses per
meter
100.0 0.1 to 6553.5
This parameter indicates the number of pulses
output per meter. The length pulses are
sampled by a DI terminal assigned with
function 29 (length count input).