AHT KINLEY XL Manuel D'utilisation page 9

en | AHT Cooling Systems GmbH
– Assign bus address
The key lock is reactivated automatically 30 s after the
last actuation.
"Loc" briefly appears on the display.
The key lock is activated again.
2.1.1.1 Switch the cooling function on and off
Switch off the cooling function for cleaning purposes
only.
Press
Deactivate key lock
same time and hold for 5 s.
(access level 1):
"unL" appears on the display.
Level 1 is activated.
Switch off cooling
Press
function (start
The display shows "---".
manual defrost):
Press
Switch on cooling
The current temperature is
function:
shown on the display.
When the cooling function is switched off, the door
heating automatically switches off as well.
After switching on the cooling function, the door heat-
ing must therefore be switched on again (see →
Switch the door heating on and off).
2.1.1.2 Select application
The following applications (customer-specific release)
can be selected:
– A1, A2
Press
Deactivate key lock
same time and hold for 5 s.
(access level 1):
"unL" appears on the display.
Level 1 is activated.
Press
Show set
The the currently set
application:
application, e.g. "A1" is shown
on the display.
If no change is desired, the display returns to the cur-
rent temperature after a brief period.
Change application: Press
The newly set application is
Confirm new entry:
adopted automatically after 5 s.
2.1.1.3 Assign bus address
Before assigning the bus addresses, the devices must
be networked with an appropriate bus cable.
The first device (1) must be connected to market mon-
itoring (M) via the bus cable.
The bus cable must be terminated with a terminating
resistor (R) on the last device (n).
M
1
Fig. 3: Bus system diagram
Bus cable Patch cable CAT 5-S/FTP
377890_1_1218
and at the
for at least 1 s.
for at least 1 s.
and at the
for at least 1 s.
briefly.
R
2 n
Switch the cooling function on and off | 2.1.1.1
PROTOCOL MODBUS RTU
Bus system RS-485 2-WIRE
(optional) Connection via RJ45 socket/
RJ45 plug
Baudrate 9600 oder 19200 Bit/s
Data Lenght 8 Bit
Parity none
Stop bit 1
Minimum TimeOut 60ms
Pin 3 Pin 2 Pin 1
Fig. 4: RJ45 connector bus cable, RJ45 sockets device and
terminating resistor (R)
Pin
1
2
3 Ground
The controller are delivered with the bus address
„1" (corresponds to a „stand-alone"- unit). For identific-
ation of several units in the bus system, the bus ad-
dresses must be assigned starting with „1".
Bus addresses must not be assigned twice. After-
wards, we recommend entering the addresses accord-
ing to the actual wiring sequence.
Max. 247 addresses can be entered.
NOTE
Property damage when assigning the bus ad-
dress due to switching off the cooling func-
tion.
▪ After assigning the bus address, the cooling func-
tion has to be switched on again (see → item 5).
Press
Deactivate key lock
same time and hold for 5 s.
(access level 1):
"unL" appears on the display.
Level 1 is activated.
Access programming level
1.
– Switch off cooling function: Press
least 1 s. „The display shows "---".
2.
– Then immediately press
succession.
"Adr" is shown on the display alternating with
the current bus address, e.g. "1".
Assign bus address
3. – Assign next higher bus address (individual
step):
Press briefly.
– Fast browse through bus addresses:
Hold down .
Data Colour
A / - Orange/white
B / + Orange
Green/white
and at the
for at
3 times briefly in
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