Lenze 8400 - Change Function Assignment

Lenze · 8400 HighLine · Reference manual · DMS 12.0 EN · 06/2017 · TD23 325
6 I/O terminals
6.1 Digital input terminals
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6.1.1 Change function assignment
The internal processing function of the digital input terminals DI1/DI2 and DI6/DI7 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(6) and DI2(7) as digital inputs
( 326)
Using DI1(6) and DI2(7) as frequency inputs
( 327)
Using DI1(6) as counting input
( 332)
C00115/1: Function assignment DI1 and DI2
C00115/2: Function assignment of DI6 and DI7
Function assignment
DI1 / DI6 DI2 / DI7
0 DI1(6)=In / DI2(7)=In Digital input Digital input
1 DI1(6)=FreqIn / DI2(7)=In Frequency input Digital input
2 DI1(6)&DI2(7)=FreqIn (2-track) Frequency input (2-track)
3 DI1(6)=FreqIn / DI2(7)=direction Frequency input
(speed)
Frequency input
(direction)
4 DI1(6)=CountIn / DI2(7)=In Count input Digital input
 Note!
• In the Lenze setting of C00115, the digital input terminals DI1/DI2 and DI6/DI7 have
been configured as "normal" digital inputs.
• The digital input terminals DI3 ... DI5 are generally designed as "standard" digital
inputs.
• Very high pulse frequencies can be measured at the DI1/DI2 and DI6/DI7 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).