Rittal 7338.321, Монтаж, установка и эксплуатация

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7 Display and control elements
Operation of the system is via the superordinate system DET-AC III Master or
EFD III or via the Maintenance Program Ä Chapter 9 „Maintenance program”
on page 55 . Refer to the operating instruction for DET-AC III Master or EFD III for
operation via a superordinate system.
Operating hours counter
The system monitors the operating time since the last maintenance work was per-
formed. If this exceeds the permissible maintenance interval, a failure message is
generated (LED display "Common failure" and triggering relay "Common failure").
There are the following options for resetting this message:
● Resetting via the
[Reset] button.
An Authorized Distributor Reset must take place to reset this message. To this
end, the transparent protective film at the housing of the system must be
opened. On the control card CPU3, the [RESET] button (Fig. 40 /1) is to be actu-
ated for longer than three seconds. Afterwards, the failure message and the
operating hours counter of the system are reset.
● Resetting via the Maintenance Program Ä Chapter 9.7 „Operation” on page 60 :
Press the "Maintenance" button.
NOTICE
Damage due to incorrectly recorded operating hours!
The operating hours counter for the maintenance interval is based on the real time
clock that is installed. Adjusting this clock can, under certain circumstances, affect
correct recording of the operating hours.
● Do not manipulate the time.
Fig. 40: [Reset] button
Display and control elements
Operating Instructions / DET-AC III Slave / 916007 / 05-2016 / en_US 50