Lenze 8400 motec - Manual (Page 185)

Lenze · 8400 motec · Reference manual · DMS 4.1 EN · 08/2013 · TD05 185
6 I/O terminals
6.1 Digital terminals
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6.1.1 Configuring DI1 and DI2 as frequency inputs
This function extension is available from version 02.00.00!
The internal processing function of the digital input terminals DI1 and DI2 can be reconfigured in
C00115/1 if required. This serves to use these input terminals optionally as frequency inputs to im-
plement the following functions:
• Detection of the input frequency
• Detection and processing of two unipolar input frequencies to one bipolar frequency
• Evaluation of the speed feedback for the
V/f control (VFCplus + encoder)
C00115/1: Function assignment DI1 and DI2 Function assignment
DI1 DI2
0 DI1=In1 / DI2=In2 Digital input Digital input
1 DI1=FreqIn12 / DI2=In2 Frequency input Digital input
2 DI1&DI2=FreqIn (2-track) Frequency input (2-track)
3 ( DI1/DI2=+- ) = FreqIn12 Frequency input
(speed)
Frequency input
(direction)

Note!
• In the Lenze setting of C00115/1 , the digital input terminals DI1 and DI2 are config-
ured as "standard" digital inputs.
• The digital input terminals DI3 ... DI8 are basically designed as "normal" digital inputs.
• If the digital inputs are parameterised as frequency inputs, the corresponding output
signals (bIn1/bIn2) at the LS_DigitalInput system block automatically takes the FALSE
status.

Detailed information on how to parameterise the speed feedback for the motor control
can be found in the chapter entitled " Encoder/feedback system ". ( 158)