EUCHNER CETx-AR-xxx-CH-xxx (Multicode) - Manual (Page 37)

Operating Instructions Safety Switch CET.-AR-...-CH-...
37
System status table
Operating mode
Actuator/door
position
Safety
outputs
OA
and
OB
Monitoring
output
OUT
Door
monitoring
output
OUT
D
(only
CET3
and
CET4)
LED indicator
output
State
ST
ATE
(gr
een)
DIA
(r
ed)
Self-test X off off off
10 Hz
(8 s)
Self-test after power up
Normal operation
closed on on on Normal operation, door closed and locked
closed off on on
1 x in-
verse
Normal operation, door closed and locked, safety outputs not switched be-
cause:
- Preceding device in the switch chain signals "door open" (only with series
connection)
- Feedback loop not closed
closed off off On 1 x Normal operation, door closed and not locked
open off off off 1 x Normal operation, door open
Fault display
X off off off 2 x
Input fault
(e.g. missing test pulses, illogical switch state from previous switch in the
switch chain)
X off off off 4 x
Output fault
(e.g. short circuit, loss of switching ability)
X off off off 5 x
Internal fault
(e.g. component fault, data error or short circuit at the outputs)
X off off off X X Internal fault
Key to symbols
LED not illuminated
LED illuminated
10 Hz (8 s) LED flashes for 8 seconds at 10 Hz
3 x LED flashes three times
X Any state
After the cause has been remedied, faults can generally be reset by opening and
closing the door. If the fault is still displayed afterward, use the reset function or
briefly interrupt the power supply. Please contact the manufacturer if the fault could
not be reset after restarting.
Important:
If you do not find the displayed device status in the System status table, this indi-
cates an internal device fault. In this case, you should contact the manufacturer.