dixell COOL MATE XLR470 Betriebshandbuch - Seite 11

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DIGITAL INPUTS

The instrument can support up to 2 free contact digital inputs. Both of them can be configured as One is always configured as door switch, the

second is programmable in seven different configurations by the "I2F" parameter.

1.14 DOOR SWITCH INPUT (MP1, MP2, MP)

It signals the door status to the controller: MP1: door open for section 1; MP2: door open for section 2; MP door open for both the sections.

When the door is open the status of compressor (and fans) depends on the "odc1" and "odc2"parameters: no = normal (no changes); Fan = Fan

OFF (if fan is present); CPr = Compressor OFF; F_C = Compressor and fan OFF. Since the door is opened, after the delay time set through

parameter "doA", the alarm output is enabled and the display shows the message "dA". The alarm stops as soon as the external digital input is

disabled again. During this time and then for the delay "dot" after closing the door, the high and low temperature alarms are disabled.

1.15 CONFIGURABLE INPUT - GENERIC ALARM (EA1, EA2, EAL)

It signals to the controller: EA1: generic alarm – section 1; EA2: generic alarm – section 2; EAL: generic alarm – it counts for both the sections.

As soon as the digital input is activated the unit will wait for "did1" time for section 1 and "did2" time for section 2 delay before signalling the "EAL"

alarm message. The outputs status don't change. The alarm stops just after the digital input is de-activated.

1.16 CONFIGURABLE INPUT - SERIOUS ALARM MODE (BA1, BA2, BAL)

It signals to the controller: bA1: serious alarm – section 1; bA2: serious alarm – section 2; bAL: serious alarm – it counts for both the sections.

As soon as the digital input is activated the unit will wait for "did1" time for section 1 and "did2" time for section 2 delay before signalling the "bAL"

alarm message. The relay outputs are switched OFF. The alarm will stop as soon as the digital input is de-activated.

1.17 CONFIGURABLE INPUT - START DEFROST (DF1, DF2, DEF)

It executes a defrost if there are the right conditions, respectively for: dF1: section 1; dF2: section 2; dEF: both the sections.

After the defrost is finished, the normal regulation will restart only if the digital input is disabled otherwise the instrument will wait until the "Mdf1" and

"MdF2" safety time is expired.

1.18 CONFIGURABLE INPUT - REMOTE ON/OFF (OF1, OF2, ONF)

This function allows to switch ON and OFF a sections of the instrument or the whole instrument according to the following setting: oF1: section 1;

oF2: section 2; onF: it counts for both the sections. When the digital input is de-activated, the corresponding section restarts working.

1.19 CONFIGURABLE INPUT - ENERGY SAVING (ES)

The Energy Saving function allows to change the set point value as the result of the SET1+HES1 for section and SET2 + HES2 fro section 2. This

function is enabled until the digital input is activated.

1.20 DIGITAL INPUTS POLARITY

The digital inputs polarity depends on "I1P" and "I2P" parameters: CL : the digital input is activated by closing the contact;

activated by opening the contact

10.

INSTALLATION AND MOUNTING

The temperature range allowed for correct operation is 0 - 60 °C. Avoid places subject to strong vibrations, corrosive gases, excessive dirt or

humidity. The same recommendations apply to probes. Let the air circulate by the cooling holes. Thanks to the case, XLR470 model can be panel or

wall mounted. See the following instructions for details.

1592017050 XLR470 GB r1.0 24.05.07.doc

Operating manual

FIG. 1

XLR470

cod. 1592017

cod. 1592

OP : the digital input is

FIG. 2

017050

017

050

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