Instruction manual for devices of the MASI20 series
28
V 1.0
5.1 Bus / Device status display
The LED's on the front of the module are marked 'A
SI
P
WR
' and 'F
AULT
' for clear information and
represent a static or flashing LED display.
A
SI
P
WR
(green)
F
AULT
(red)
Status
¡
¡
absence of AS-I operating voltage
-
-
no data communication
-
¡
module OK
-
¤
peripheral error : - short-circuit at sensor supply
- extern supply under voltage
- short-circuit at transistor output
¡
off
¤
flashing
-
on
Table 5.1–1
: Bus / Device status display
5.2 I/O status display
A status display is allocated individually to each input and output. According to the function the display is
as follows : 'I1...In' for inputs or 'O1…On' for outputs. The display is located directly next to the
corresponding connector and makes it possible to recognize the status of peripheral components such as
sensors and actuators.
I / O
(yellow)
Status
¡
input / output deactivated
-
input / output activated
¡
: off
-
: on
Table 5.2–1 : I/O status display
5.3 Auxiliary supply
The power supply of the modules with an auxiliary supply are fitted with a green LED.
The auxiliary supply must be galvanic-separated according to IEC 364-4-1 (PELV).
Aux P
WR
(green)
Status
¡
No auxiliary supply
-
Auxiliary supply
¡
: off
-
: on
Table 5.3–1 : Auxiliary supply display
