Nord Drivesystems SK 200E Series, Manual, Page: 75 / 265

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BU 0200 GB Subject to technical alterations 75
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 5.1.1).
The frequency inverters therefore have common access to the I/Os and evaluate the input signals according
to their own FI parameterisation. Output signals from these frequency inverters, which are sent to the
common I/O module are subjected to an "OR" logic internally by the module. I.e. a digital output
(SK TU4-IOE-…) is set as soon as one of the four frequency inverters accesses it. In addition, the highest
analog value is available via the analog output of the I/O extension module.