20
Device Description
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3.3
Display Elements
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Figure 5: Display Elements
Table 8: Legend for the "Display Elements" Figure
LED Designation
A
Local bus status
Undervoltage field
supply / SMI
B
connection short
circuit
TxD
C
(data transmission)
D
Digital input
E
General error
F
Operating mode
RxD
G
(data receipt)
H
Digital output
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Manual
Version 1.2.0 FW/HW Version 02/01
753-1630 SMI Master Module 230 V AC
Conditio
Function
n
Local bus failure:
Off
Not ready for operation or no/faulty
local bus communication
Ready for operation and uninterrupted
Green
local bus communication
Off
Power supply is sufficient.
Supply voltage is below the required
Red
minimum voltage.
Blinking
Short circuit of connections I+ and I−
No SMI telegram is being sent
Off
currently.
Green
SMI telegram was just sent.
Off
In Low status
Green
In High status
Off
No error detected.
Controller failure or local bus failure
Red
was detected.
Off
Normal operation active
Yellow
Energy saving mode active
Forced position triggered due to one of
the following events:
-
Controller failure
Blinking
-
Local bus failure
-
Safety-related signal at the digital
input
No SMI telegram is being received
Off
currently.
Green
SMI telegram was just received.
Off
In Low status
Green
In High status