Lenze 8615E - Manual (Page 69)

3.4.2 Digital frequency input
With the corresponding (CO05) you use the
Sub-D X5 or as digital frequency input, where
two complementary shifted by 90” are provided. you use
an HTL-encoder, it is provide only the A and B.
The A\ and B\ then be bridged using (pin 4).
The maximum input frequency is 300 kHz for TTL encoders and
100 kHz for HTL encoders.
Assignment of
I n p u t
I n p u t
I n p u t
output
I n p u t
2nd encoder
1 st encoder
1 s t e n c o d e r
S u p p l y v o l t a g e t e r m i n a l
I n t e r n a l g r o u n d
not used
not used
not used
2nd encoder = OFF)
If you want to use a digital frequency input, the internal 1 is
a frequency setpoint, directly proportional the frequency of the
input Signals. The results from the
CO26 and C027.
Frequency value = Digital frequency
Encoder adjustment(C027)
Encoder constant (C026)
Example:
Digital frequency =
kHz
Encoder constant (C026) = 512
Encoder adjustment (C027) = 1.024
Frequency = Hz
The phase of the input is also used the
of rotation of the drive. The influence of the terminals 21
and 22 remains
With enabled and the only connected at
one side of the digital frequency input interferences may
the drive to or reverse unexpectedly.
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