Lenze 8400 StateLine - Manual (Page 264)

6 I/O terminals
6.1 Digital terminals
264
Lenze · 8400 StateLine · Reference manual · DMS 12.0 EN · 06/2014 · TD05/TD14
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6.1.1 Change function assignment
The internal processing function of the digital input terminals DI1 and DI2 can be reconfigured in
C00115 if necessary. In this way, these input terminals can alternatively be used as frequency or
counting inputs in order to implement the following functions:
• Detection of the input frequency
• Detection and processing of two unipolar input frequencies to one bipolar frequency
• Counting of input pulses
• Evaluation of the speed feedback (HTL encoder) for the motor control (speed-controlled
operation)
You can find detailed information on the respective function assignment in the following
subchapters:
 Using DI1 and DI2 as digital inputs ( 265)
 Using DI1 and DI2 as frequency inputs ( 266)
 Using DI1 as counting input ( 270)
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)
4 DI1=CountIn1 / DI2=In2 Count input Digital input

Note!
• In the Lenze setting of C00115 , the digital input terminals DI1 and DI2 have been
configured as "normal" digital inputs.
• The digital input terminals DI3 ... DI4 are basically designed as "normal" digital inputs.
• Very high pulse frequencies can be measured at the DI1 and DI2 input terminals if the
latter have been configured as frequency or counting inputs in C00115 . Scanning is
then carried out within less than μs instead of the otherwise usual scanning rate of
1 kHz (1 ms).