Baldor NXE100-1608Dx, Installation Manual

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Input / Output 4-7 MN1941
4.3 Digital I/O
The NextMove e 100 provides:
H
20 general purpose digital inputs.
H
12 general purpose digital outputs.
H
1 general purpose relay output.
4.3.1 Digital inputs
Digital inputs are available on connectors X8, X9 and X10, as shown in section 4.1.1.
The digital inputs are arranged in three groups, each with their own common connection. This
allows each group to be configured independently for ‘active high’ or ‘active low’ operation (using
the Mint
INPUTMODE
keyword).
The general purpose digital inputs DIN0 - DIN19 can be shared between axes, and are
programmable in Mint (using a range of keywords beginning with the letters
INPUT ... ) to
determine their active level and if they should be edge triggered. The state of individual inputs can
be read directly using the
INX and INSTATEX keywords. See the Mint help file.
A general purpose digital input can be assigned to a special purpose function such as a home,
limit, stop or error input. See the keywords
HOMEINPUT
,
LIMITFORWARDINPUT
,
LIMITREVERSEINPUT
,
STOPINPUT
and
ERRORINPUT
in the Mint help file.
4.3.1.1 DIN0 - DIN3
Digital inputs DIN0 to DIN3 can be assigned as fast interrupts. These are used as high speed
position latches, allowing any combination of axes to be captured by the hardware. The latency
between input triggering and capture is 1
μ s. Special Mint keywords (beginning with the letters
LATCH
...) allow specific functions to be performed as a result of fast position inputs becoming
active. See the Mint help file for details.
DIN3
6k2
TLP115A
DGND
Mint
Vcc
NextMove e 100
CREF0
100R
1
3
Shield 2
‘X10’
Figure 8 - Fast interrupt digital input - DIN3 shown
Digital inputs DIN0 to DIN3 use CREF0 as their common connection.
Note: The fast inputs are particularly sensitive to noise, so inputs must use shielded
twisted pair cable. Do not connect mechanical switches, relay contacts or other
sources liable to signal ‘bounce’ directly to the fast inputs. This could cause
unwanted multiple triggering.