Change Function Assignment - Lenze 8400 StateLine C Reference Manual

6.1.1

Change function assignment

The configuration of the internal processing function of the digital input terminals DI1 and
DI2 can be changed in
be used as frequency/counter inputs 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)
C00115/1: Function assignment of DI1 and DI2
0 DI1=In1 / DI2=In2
1 DI1=FreqIn12 / DI2=In2
2 DI1&DI2=FreqIn (2-track)
3 ( DI1/DI2=+- ) = FreqIn12
4 DI1=CountIn1 / DI2=In2

Note!
• In the Lenze setting of C00115, the digital input terminals DI1 and DI2 are
configured as "normal" digital inputs.
• Generally, the digital input terminals DI3 ... DI4 are configured as "normal"
digital inputs.
• Very high pulse frequencies can be measured at the input terminals DI1/DI2
if these have been configured as frequency or counter inputs in C00115.
Scanning is then carried out within a few μs instead of the otherwise usual
scanning rate of 1 kHz (1 ms).
You can find detailed information on the respective function assignment in the following
subchapters:
Using DI1 and DI2 as digital inputs
Using DI1 and DI2 as frequency inputs
Using DI1 as a counter input
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8400 StateLine C | Reference manual
C00115 if required. That way, these input terminals can alternatively
( 258)
( 259)
( 263)
L
Function assignment
DI1
Digital input
Frequency input
Frequency input (2-track)
Frequency input
(speed)
Count input
I/O terminals
Digital terminals
DI2
Digital input
Digital input
Frequency input
(direction)
Digital input
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