13
6.
DIAGNOSTIC
6.1.
LED
6.1.1.
LED PWR
ON
1
2
3
PWR
LED
Color
LED
Status
Number of
flashes
Drive
Status
Green
Steady
-
Normal Functioning
Green
Flashing
-
Synchronization
Red
Flashing
1
Alarm: Current overload
Red
Flashing
2
Alarm: Motor or Encoder fault
Red
Flashing
3
Alarm: Inconsistent Encoder
Red
Flashing
4
Alarm: IxT Protection
Red
Flashing
5
Alarm: Overheating
Red
Flashing
6
Alarm: EEprom error
Red
Flashing
7
Alarm: Undervoltage
Red
Flashing
8
Alarm: Light curtain fault
Red
Flashing
9
Alarm: Emergency power supply
6.1.2.
LED CM
ON
1
2
3
CM
The LED OBS switches on to signal the activation of the
[OBSTR]
output as a consequence of mechanical detection in
closing or because of an obstruction of the light curtain (when the light curtain is directly connected to the OPR521).