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Control unit
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Pressing the
key saves the input of data for holiday mode and exits this function.
Note
:
Holiday mode can be set for a maximum of 90 days.
If no key is pressed for 2 minutes, normal mode engages automatically without the date just
entered being saved.
4.6.5
Reading out errors
– old faults
The control unit saves fault messages and the operation of valves using "Manual mode" in what is known
as a logbook. This function can be used to call up previous fault messages with time and date. The indi-
vidual messages can be called up using the arrow keys. The menu item can be exited using
.
Note
: 128 fault messages can be saved. Once this figure is reached, each new message overwrites
the oldest one. The memory can be cleared by a maintenance specialist in the service level using the
"Clear logbook" command.
4.6.6
Displaying settings
The current control unit settings can be viewed under this menu item. These settings cannot be changed.
This menu item is used to analyse the settings without changing them.
4.6.7
Service menu
Operating parameters can be changed in the Service menu. Access is protected by a code. This second
maintenance level is reserved for qualified staff!
Changing fuses
4.7
The control unit has two interchangeable fuses. These are located on the rear of the control unit.
De-energise the control unit before changing the fuses.
Fuses used:
Microfuse
KL24plus control unit
F1 supply
6.3 A, slow blow
Consumer F2
2 A, slow blow
Function of the power cut detector
4.8
The control unit is equipped with a power cut detector, which is powered via an integrated emergency
power supply (buffer). Upon delivery, the emergency power supply is flat. It charges when the control unit
is switched on. In the event of a power cut, the charge of one emergency power supply for indicating the
power cut will last around 12 hours. If the emergency power supply is not required in response to power
cuts, it is prevented from discharging by a switching circuit.
Important:
In the event of mains failure, the time / date setting is powered for around 10 days by an extra
buffer. All saved data, such as operating hours, program settings etc., is retained. If the time and date are
not set, weekly operating hours for the units are no longer saved. Error messages occurring in the future
are saved with the wrong date.