ABB 1398-DDM-075 industrial automation control module DCS PLC system
Technical data of product parameters
The available alternatives in the 1398-DDM-075 “Channel selection” window are
shown as rows of boxes, which apart from the channel number,
also contain a field for up to 2 characters (see Fig. 5.7). The
channel description consists of a explanatory text and/or a
comment entered by the user when configuring the hardware
functions (see Section 5.5.5.). The corresponding information is
displayed as the selection bar is moved from one option to the
next.The system only permits channels to be selected it considers to
be plausible, otherwise a warning bleep sounds (but there is no
error message). Examples of implausible selections are setting a
channel defined as a current input as a voltage input, or
attempting to assign a signal to an output (relay or LED) which is
already occupied.The arrangement of the c.t. and v.t. input channels has been 1398-DDM-075
established by the ordering code (K…). Prior to assigning the c.t.
and v.t. input channels, the K code in the menu “Edit Relay
Configuration” must be set (see Section 3.4.1.).
Only the first phase of a three-phase group may be selected; the
other two phases are automatically included without any special
indication. Any channel may be selected, on the other hand, for
a single-phase function.
The channel number is indicated in the parameter value column
of the “Edit function parameters” window.Tripping relays can be used for signalling purposes. Signals can
be assigned to tripping relays to which a signal (‘u’ indication in
the signalling channel selection window) or a tripping logic
(signals and trips OR logic) has already been assigned. The
procedure for assigning tripping relays is the same as for
signalling relays above.Binary inputs of functions can either be switched permanently on 1398-DDM-075
or off or be connected to a system binary input, a binary output
of another function, an SCS input, an RBI (remote binary input)
or an ITL (interlocking) data input. The corresponding setting is
made in the “Select binary input” window
Product picture display
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