NORD Drivesystems BU0200 - Manual (Page 88)

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BU 0200 GB-4411 Subject to technical alterations 87
3.4.3.6 Assignment of functions
The assignment of functions for the digital and analog inputs and outputs is made in the following
parameters of the frequency inverter.
Parameter Function designation
P400 Setpoint input function
P401 External analog input mode
P402 External analog input matching 0%
P403 External analog input matching 100%
P417 Offset analog output
P418 Function analog output
P419 Standardisation, analog output
P480 Function of BUS IO In bits
P481 Function of BUS IO Out bits
P482 Standardisation of BUS IO Out bits
P483 Hysteresis of BUS IO Out bits
The parameters of the IO module are used exclusively for information and testing purposes. Exception:
 (P161) (→ Matching of the filter settings for the IO signals),
 (P162) (→ Toggling between normal and broadcast operation) and
 (P163) (→ Inversion of the analog output signal)
3.4.3.7 Broadcast operation
In "broadcast mode" (parameter (P162)) it is possible to make up to two I/O - modules available in parallel
for a maximum of four frequency inverters. The prerequisite for this is that the FIs are on a common system
bus and no frequency inverter address has been assigned more than once (see Section 5.2.2.2).
Therefore the frequency inverters jointly access the I/Os and evaluate the input signals according to their
own FI parameterisation. Output signals from the frequency inverters which are sent to the common I/O
module are linked by a logical "OR" within the module. I.e. a digital output (SK TU4-IOE-
…) is set as soon
as one of the four frequency inverters addresses it. In addition, the highest analog value is provided via the
analog output of the I/O extension.