EUCHNER CES-AR-AES-12 - Manual (Page 17)

Operating Instructions AR Evaluation Unit CES-AR-AES-12
17
System status table
Operating mode
Actuator/ guar
d position
Safety outputs OA and OB
Indicator LEDs
Door monitor-
ing outputs
State
DIA (r
ed)
OUT (yel
-
low) ST
ATE
(gr
een)
OUT AR DIA
Self-test X off
15 Hz
(8 s)
off off Self-test after power up
Normal operation
open off off off Normal operation, at least one door open
closed On On off Normal operation, all doors closed
closed off 3 Hz On off
Normal operation, all doors closed, start button not
pressed or fault in the feedback loop
closed off 4 x On On
Normal operation, all doors closed, feedback loop
was open during attempt to start
X X X 7 x off On
Faulty data transmission for status signals (safety
circuit not affected)
Fault display
X off 1 x off On
Fault in the AR switch chain (e.g. fault on starting the
switch chain or more than 12 devices connected)
X off 2 x off On
Fault on the safety outputs or on the start button
(e.g. start configuration changed in operation, no/
erroneous signals from the switch chain, broken
cable on one of the channels I
A
or I
B
, or short circuit/
ground fault on one of the cables I
A
or I
B
)
X off 4 x off On
Fault on the safety relay, re-start device.
If fault is still indicated, contact manufacturer.
X off 5 x off On
I nternal component fault, re-start device.
If fault is still indicated, contact manufacturer.
X off 6 x off On
- Fault in feedback loop, e.g.
- feedback loop not connected on power up
- missing jumper between Y1/Y2
or
-
Fault in the start button, e.g.
- on autostart: jumper between S/U
B
instead of S/
Y1
- Start button stuck
X off off On Start failed three times, contact manufacturer
Key to symbols
LED not illuminated
LED illuminated
15 Hz (8 s) LED flashes for 8 seconds at 15 Hz
3 x LED flashes three times
X Any state