Cool Expert MIC QKL mini 2 Instrukcja instalacji i obsługi - Strona 8

Przeglądaj online lub pobierz pdf Instrukcja instalacji i obsługi dla Kontroler temperatury Cool Expert MIC QKL mini 2. Cool Expert MIC QKL mini 2 13 stron. Cooling system intelligence

Drukuj stronę

-°cool expert

:2. 1 -

MIC QKL mini 2

Correction factors for sensor TL1 and TBL

Room temperature TL1 (Offset tL1)

oL1

W E

Block temperature TBL (Offset tBL)

oBL

W E

Correction factor (oL1), (obL)

The sensor values measured by the controller can be corrected in the range -10 to 10 K / -18 to 17.5

°R. The set correction value is added to or subtracted from the measured sensor values.

Note:

IIn some practical applications, in exceptional cases, when the sensor lines TL1 and TBL are

extendedand cable conductors are missing, the three-wire measurement technique can be replaced

by a two-wire measurement technique. The resistance resulting from this, which is normally

compensated by the three-wire measurement technique, can be compensated by this parameter. If

the two-wire measurement is absolutely essential, the sensors TL1 and TBL are connected to

terminals 7 and 8 as well as 8 and 9. A bridge must be inserted between terminals 6 and 7 as well as 9

Display/hide temperature display

W E

Temperature display "tL1" switched on

Display of the room temperature in operating level 1 under "tL1"

Temperature display "tL1" hidden

Display of the room temperature is hidden after 5 minutes (Display in the display "___") The room

temperature is displayed again by pressing a control button.

-°cool expert

:2. 2 -

MIC QKL mini 2

Attention: Requirement for the usage of the network functions is that each controller is equipped

with a network module. Controller release R19 and later have to be equipped with a network module

release IF3.

Network identification

nId

W E

Adjustable value 1 – 16

The controllers in a network can be linked and separated in up to 16 communication groups.

Controllers with the same identification number can communicate with each other. Precondition is

that they are configured as described below. Up to 128 controllers can be linked in one network.

Network based Communication "Off" (OFF)

Network based communication disabled for this controller.

Temperature communication group

ntG

W E

Value 1 - 8

With ''ntG'' it is possible to balance different room temperature zones in one and the same cooling

position, using a setpoint adaption. Furthermore it is easily possible to assign the capacities of the

evaporators to the capacities of the compressors according to the desired temperature difference

DT1 (room-temperature based central refrigeration plant capacity control). Up to 16 Controllers can

be linked in one temperature-communication-group. Precondition: The controllers belonging to the

same temperature communication group have to be set to the same value of ''ntG'' and ''nId''. For

this purpose all evaporators have to be equipped with a controller. The coordination of the

temperature balancing is done by temporarily adjusting the setpoint temperature. The adapted

setpoint temperature is displayed in the operating level 1 under ''tSA''. The communicating

controllers perceive the new setpoint temperatures and first start their cooler fans followed by their

cooling request, in the event of a tendentiously increasing room temperature. If the remaining

controllers of the cooling position detect a tendentially falling room temperature, their cooling

contactor remains inactive whereas the cooler fans remain switched on. After the controller which

initially requested cooling reaches his setpoint temperature, the cooling request and the cooler fans

are switched off under consideration of minimum runtimes. The air cooler fan management as

configured under ''cFA'' is used again. The original setpoint temperature has now priority even for the

adapted controller.A deviation of the setpoint temperature within a group is limited to max. 8 K / 14.5

°R.In the case of setpoint temperatures above freezing point, the controller ensures that the room

temperature does not fall below 0.5 °C / 32.9 °F.

You can obtain more information on temperature communication with its various possible

applications directly from Cool Expert on request.

Communication of temperature "Off" (OFF)

No network based temperature communication.

Note:

The temperature communication using the digital inputs is disabled when a temperature

communication group is set.

Factory setting

W E

(All temperature values of the factory setting are indicated in Celsius)

0. 0

Correction factor: -10 to 10 K / -18 bis 17,5 °R

0. 0

Correction factor: -10 to 10 K / -18 bis 17,5 °R

(Display temperature)

Temperature display "tL1" switched on

OFF

Temperature display "tL1" hidden

(Network identifikation)

Adjustable value 1 – 16

OFF

Network based communication "off"

(Network temperature group)

Adjustable value 1 - 8

OFF

Temperature communication "off"

The expanded configuration level

Internal heat control

iHC

W E

Heating control activated, value 1-15

Depending on this value the connected defrost heater will be checked in defined intervals. A

value of 1 represents 6 month. Higher values will decrease the interval.

Attention:

Values larger than 5 can possibly affect the control functions in a negative way and should only

be used on behalf of the Cool Expert Service.

No internal heat control (OFF)

Interval checks of the defrost heater are disabled.

Internal standby delay

iSd

W E

Value 1 - 900 seconds

Once a standby signal is cancelled (by digital input or network module), the controller remains

blocked for the programmed duration.

Default standby delay (STD)

The standby delay is set to 8 minutes (480 seconds).

Back to the configuration level (operating level 2)

-2-

Defrost communication group

ndG

W E

Value 1 – 8

Up to 16 controllers can be linked together as a defrost communication group.

Precondition: The controllers belonging to the same defrost communication group have to be set to

the same value of ''ndG'' and ''nId'' . Controllers of the same defrost communication group are

working together and are coordinating their defrost processes in order to reach an optimum defrost

result. A defrosting controller is locking the remaining controllers of the group (Cooling request- and

defrost suppression). In this way the occurance of cost intensive load peaks, as well as influences

due to secondary air flows are avoided.The following processes are carried out, depending on the

selected defrosting method.

For electric defrosting, if the configuration "EL" is selected under "cD". If the controllers detect that

one controller of their defrost communication group has started a defrosting process, all the

remaining controllers are switched to standby. In the irregular case, the cancelling of the standby

state is done after the defrosting time exceeds 90 minutes.. After cancelling the signal, the next

defrosting process for thecontrollers that where switched to standby before is only allowed after one

hour or if the setpoint temperature was reached.

For hot gas defrosting in interconnected and individual refrigeration systems if the configuration

"HGE" or "HGS" is selected under "cd". Network defrost communication in combination with hot

gas defrosting is not implemented in this software version.

Recirculating air defrosting if the configuration "FAN" is selected under "cD". If the controllers of a

defrost communication group percieve that one controller of their group has started a defrosting

process, all the remaining controllers initiate a defrosting process for themselves. The cooling

process can only be initiated again after all controllers of the concerned defrosting group have

finished their defrosting process or if a safety time of 90 minutes is exceeded. After resuming the

cooling process the next defrosting can be initiated after a total of 2 hours cooling request (per

controller) at the earliest.

You can obtain more information on defrost communication with its various possible applications

directly from Cool Expert on request.

Defrost communication "Off" (OFF)

No network based defrost communication.

Note:

The defrost communication using the digital inputs is disabled when a defrost communication group

is set.

Support group

Parameter only valid in combination with "ndG", "1" or higher , hot gas defrost

"-2-", "cd", "HGE" or "HGS" and electrical defrost "-2-","cd", "EL"

nUG

W E

In preparation: this parameter has currently no function!

Operating level 2.1

(Internal heat control)

Heating control activated, value 1-15

OFF

No internal heat control

(Internal standby delay)

Value 1 - 900 seconds

Std

Standard

The first menu item after changing to the

configuration level (operating level 2)

Operating level 2.2

The network level

(Network defrost group)

Adjustable value 1 - 8

OFF

Defrost Communication "Off"

(Network support group)

Adjustable value 1 – 8

OFF

No support group configured