Theben DU 1 Manual page 17

1-channel flush-mounted dimming actuators
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Object 12: Operating hours feedback, time to next service
Only available if the hour counter function is activated
(Configuration options parameter page).
Reports, depending on selected type of hour counter (Hour counter and service parameter
page), either the remaining period to the next set service or the current status of the hour
counter.
Object 13: Service required
Only available if the hour counter function is activated
(Configuration options parameter page) and Type of hour counter = Counter for time to next
service.
Reports if the next service is due.
0 = not due
1 = service is due.
Object 14: Reset service, reset operating hours
Only available if the hour counter function is activated
(Configuration options parameter page).
Object 15: General error message
Used as a malfunction signal:
0 = no error
1 = an error has been detected
This message can, for example, be displayed in a display
Object 16: Short circuit message
0 = OK
1 = short circuit at dimmer output:
Check connected lines and load.
Object 17: Excess temperature message
0 = OK
1 = the dimmer is overloaded:
connected power is too high,
ambient temperature is too high,
incorrect installation position, i.e. device cannot dissipate the heat
Object 18: Mains power failure
0 = OK
1 = no mains voltage available:
Mains failure or defective hardware.
Flush-mounted dimming actuator DU 1

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