ABB REG650 Technical Manual page 82

Section 5
Local Human-Machine-Interface LHMI
76
Note that the third positive edge on the input attribute does not cause a pulse, since the
edge was applied during pulse output. A new pulse can only begin when the output is
zero; else the trigger edge is lost.
Input value
Output value
IEC09000332 V1 EN
Figure 28: Sequence diagram for Mode 2
Input function
All inputs work the same way: When the LHMI is configured so that a certain function
button is of type CONTROL, then the corresponding input on this function block
becomes active, and will light the yellow function button LED when high. This
functionality is active even if the function block operation setting is set to off.
There is an exception for the optional extension EXT1 function keys 7 and 8, since
they are tri-color (they can be red, yellow or green). Each of these LEDs are controlled
by three inputs, which are prioritized in the following order: Red - Yellow - Green
RED
1
-
-
0
t
pulse
IEC09000332_1_en.vsd
INPUT
YELLOW
0/1
1
-
0
1MRK 502 043-UUS B
t
pulse
OUTPUT
GREEN Function key LED color
0/1 red
0/1 yellow
1 green
0 off
Technical Manual