KGL Operating Manual – UA 412 S
2019-01-14
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1.
2.
3.
Legend: Ry.x
3
HACCP sensor
4
Return air sensor
6
Sensor for evaporator outlet temperature
x = case no.
1..2
Element No. 1..2
Legend: Sy.x
y = type of the sensor
7
Compressor final temperature sensor
8
Brine outlet sensor
x = element no.
1..4
Compressor number 1..4
7.11 Assignment of the USB port
The USB port is used
for direct parametrisation of the case controller via LDSWin or
for performing a firmware update of the case controller or
for parametrisation of system components via CAN bus using LDSWin (USB2CAN). Furthermore, the
operating data of the case controller can be read out via the USB port using a PC equipped with
LDSWin.
If the controller is connected to a PC via USB, the green USB LED lights.For details see chapter
) is required for the connection
to a PC. Refer to the LDSWin operating manual for further information about the connection to
LDSWin. A detailed description of the firmware update is contained in chapter
.
7.12 Wiring of the master-slave function for defrost synchronisation
For defrost synchronisation using wiring, the auxiliary contactors of the master defrost relay are wired in
parallel and then routed as a 230 V signal to the slave’s external defrost input. The auxiliary contactors of the
slave are also wired in parallel and routed back to the external defrost input of the master as 230 V level. In
this way, the software can determine in the involved case controllers whether another defrost is taking place.
Warning about dangerous electrical voltage!
Danger of electric shock! BEFORE connecting and disconnecting, it must be checkedthat no voltage
at the 230 V AC digital inputs!
is present
