Firmware V3.13
21.04.2021
30/466
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5.4 Standalone operation
Only UA 400 E / UA 410 E
In this operating mode, the controller operates standalone, operation is local, see chapter
is required for alarm signalling, otherwise no alarm
path is available. In contrast to this
, the suction gas temperature t
0
for determining superheat is
determined on the case controller itself. The case controller has two standalone operating modes for
determination of the superheat.
Standalone operation using evaporator inlet sensors
Standalone operation using activated local pressure transmitter
Standalone operation affects the following functions of the case controller:
Necessary sensors (see chapter
Necessary and optional sensors
Pump down of the evaporator after the defrost (for the following temperature control)
Superheat control (see chapter
)
Alarm is signalled via the alarm relay
Local operation with a BT 300 x operator interface:
5.4.1 Standalone operation using evaporator inlet sensors
Only UA 400 E / UA 410 E
The UA 400 E CC and. UA 410 E AC can operate
to a limited extent
in so-called standalone operation. This
means that the case controller operates autonomously
without
CAN bus connection. In standalone operation,
superheat is determined using evaporator inlet sensor R5.x
and
evaporator outlet sensor R6.x.
For this operating mode, the parameter
Korroff.
t
0
must be set to "--" (menu 6-3).
On the other hand,
the suction gas temperature t
0
of the associated pack controller for the
refrigeration circuit is used to determine superheat via the CAN bus (integrated in the CAN bus).
ATTENTION
This operating mode is
not suitable for normal operation
, the
commissioning or for service purposes!
Содержание Case Controller UA 4 E Series
Страница 23: ...Firmware V3 13 21 04 2021 23 466 For more details see chapter Operation UA 4xx E...
Страница 135: ...Firmware V3 13 21 04 2021 135 466 Exit the menu by tapping the ESC button twice...
Страница 157: ...Firmware V3 13 21 04 2021 157 466 Connection diagram UA 400 E CC One zode controller and two zone controller...
Страница 158: ...Firmware V3 13 21 04 2021 158 466 Anschlussbild UA 401 E CC One zode controller...
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Страница 216: ...Firmware V3 13 21 04 2021 216 466 SENSORS POS XXXXX Entry Default 5K3A1 Temperature range 0 100 C...
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Страница 364: ...Firmware V3 13 21 04 2021 364 466 MODE POS XXXXX Entry Default Fixed run time Enthalpy ctrl rtm...