ABB Relion 650 Series Technical Manual page 74

Section 4
Local Human-Machine-Interface LHMI
Input value
Output value
IEC09000330 V1 EN-US
Figure 27: Sequence diagram for Mode 0
Mode 1 (TOGGLE)
In this mode the output toggles each time the function block detects that the input has been
written. Note that the input attribute is reset each time the function block executes. The function
block execution is marked with a dotted line below.
Input value
Output value
IEC09000331 V1 EN-US
Figure 28: Sequence diagram for Mode 1
Mode 2 (PULSED)
In this mode the output will be high for as long as the setting
output will go back to 0. The input attribute is reset when the function block detects it being high
and there is no output pulse.
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-US
Figure 29: 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
68
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pulse
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IEC09000330-1-en.vsd
IEC09000331_1_en.vsd
pulse time . After this time the
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IEC09000332_1_en.vsd
Line distance protection REL650
1MRK 506 326-UUS B
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Technical manual