ABB RET650 Technical Manual page 75

1MRK 504 135-UEN A
Technical manual
Activating
signal
LED
IEC01000228 V2 EN
Figure 14: Operating Sequence 1 (Follow-S)
If inputs for two or more colors are active at the same time to one LED the priority is
as described above. An example of the operation when two colors are activated in
parallel is shown in Figure
Activating
signal GREEN
Activating
signal RED
LED
IEC09000312 V1 EN
Figure 15: Operating sequence 1, two colors
Sequence 2 (Follow-F)
This sequence is the same as Sequence 1, Follow-S, but the LEDs are flashing instead
of showing steady light.
Sequence 3 LatchedAck-F-S
This sequence has a latched function and works in collecting mode. Every LED is
independent of the other LEDs in its operation. At the activation of the input signal,
the indication starts flashing. After acknowledgment the indication disappears if the
signal is not present any more. If the signal is still present after acknowledgment it gets
a steady light.
Local Human-Machine-Interface LHMI
15.
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Section 5
IEC01000228_2_en.vsd
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IEC09000312_1_en.vsd
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