Introduction; Main Features Of The Ud78 - Control Techniques UD78 User Manual

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Introduction

1.1

Main features of the UD78

Note
The UD78 can be used only with Drives equipped with
version 3 (or later) software. (Parameter 0.50 indicates
the software version.)
Main The UD78 large option module is an interface module for installation in a
functions Unidrive and has the following functions:
• Precision analog input
• EIA RS485, 4-wire or 2-wire, serial communications interface (fully
opto-isolated)
• Back-up +24V
Drive (and the UD78) operating when the
disconnected.
Back-up
DC
supply
Serial communications
Figure 1 The functions of the UD78 connectors
UD78 User Guide
Issue code: 78nu2
supply input for keeping the control circuits of the
DC
Precision analog input
supply to the Drive is
AC
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