Lenze 931W - Manual (Page 53)

Software implementation and parameter setting
Inputs and outputs menu
Digital I/Os: digital output
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53 HB 13.0001-EN 3.0
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The digital output can also be used as an input if a function module for
inverters with an IO interface is used in addition. This, for instance, is
reasonable for drive systems where 2 limit switches are to be evaluated.
Without using a function module, only the use as an output is possible! The
function module can be procured from Lenze under the designation
930FI020000 as part of the accessories.
For the use of this specific function module it is to be observed that the cycle
time of the evaluation of the two digital inputs in comparison to the usual IO
system is twice as long.
When using the 930FI020000 function module, the output can be used as a second input.
This second input is configurable as ”Active high” or ”Active low”. With regard to the
function, the same functions as to the first input can be allocated to the second input.
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An assignment of the same function to both inputs is to be avoided.