Advertisement
Ad
Temperature alarm delay: (0 to 99 min) time interval between the detection of an alarm
condition and alarm signalling.
dA
Exclusion of temperature alarm at start-up: (0 to 99 min) time interval between the
detection of the temperature alarm condition after instrument power on and alarm signalling.
CONDENSER TEMPERATURE ALARMS
t2
Condenser alarm temperature probe: (nP; P1; P2; P3; P4) nP=not used, condenser alarm
is disabled; P1=thermostat probe; P2=evaporator probe; P3=third probe; P4=not used.
L2
Condenser low temperature alarm: (-55 to 99°C; -67 to 99°F) when this temperature is
reached the "L2" alarm is signalled after the r1+r2 delay.
U2
Condenser high temperature alarm: (-55 to 99°C; -67 to 99°F) when this temperature is
reached the "H2" alarm is signalled after the r1+r2 delay.
H2
Differential for temperature condenser alarm recovery: 0.1 to 25°C; 1 to 45°F
r1
Condenser temperature alarm delay: (0 to 99 min) time interval between the detection of
the condenser alarm condition and alarm signalling.
r2
Condenser temperature alarm exclusion at start up: 0 to 99 min.
bL
Compressor off due low temperature alarm: n; Y
C2
Compressor off due high temperature alarm: n; Y
RELAYS
tb
Alarm relay switched off by pushing a button: n; Y.
o1
First relay configuration: dF=defrost.; Fn=evaporator fan; AL=alarm; Li=light; Au=DO NOT
USE; nF=always on with instrument on; db=DO NOT USE; C2=DO NOT USE; d2=DO NOT
USE
o2
Second relay configuration: dF=defrost.; Fn=evaporator fan; AL=alarm; Li=light; Au=DO
NOT USE; nF=always on with instrument on; db=DO NOT USE; C2=DO NOT USE; d2=DO
NOT USE
o3
Third relay configuration: dF=defrost.; Fn=evaporator fan; AL=alarm; Li=light; Au=DO NOT
USE; nF=always on with instrument on; db=DO NOT USE; C2=DO NOT USE; d2=DO NOT
USE
AP
Alarm output polarity: (CL; oP) CL=alarm relay will close in case of any alarm; oP=alarm
relay will open ain case of any alarm
ENERGY SAVING
Et
Period to switch from Energy Saving to Standard mode with door closed: (0 to 99 hours)
if the door remains closed for the Et time, the controller automatically switch to the ES mode.
With Et=0 the cycle are disabled. For curtain application set iF or 2F=ES.
St
Period to switch from Standard to Energy Saving mode with door closed: (0 to 99 hours)
if the door remains closed for the Et time the controller automatically switch from ES to
standard mode. With St=0 the cycle are disabled. For curtain application set iF or 2F=ES.
ES
Temperature variation during the Energy Saving cycle: (-30.0°C to 30.0°C; -54 to 54°F)
sets the increasing value of the set point during the Energy Saving mode.
do
Door open time before restoring the Standard mode: (0 to 99 min) if the door remains
open more than dS time, the controller switches from the ES to standard mode.
1H
Overheating before activating the super cooling function in Standard mode: (0.0
to12.0°C; 0 to 21°F) value added to Set-Point SET to determine the activation temperature for
the sub-cooling cycle.
1S
Subcooling for super cooling function in Standard mode: (0.0 to 12.0°C; 0 to 21°F) value
subtracted to Set-Point SET to determine the end temperature of sub-cooling cycle.
1t
Maximum duration for super cooling function both for Standard and energy Saving
mode: (0 to 99 min) working period for super cooling function
2H
Overheating before activating the super cooling function in Energy Saving mode: (0.0
to12.0°C; 0 to 21°F) value added to Set-Point SET to determine the activation temperature for
the sub-cooling cycle.
2S
Subcooling for super cooling function in Energy Saving mode: (0.0 to 12.0°C; 0 to 21°F)
value subtracted to Set-Point SET to determine the end temperature of sub-cooling cycle.
LG
Light off in ES mode: (n, Y) it sets if the light is switched off when the controller is in ES
mode.
DIGITAL INPUT
iP
Digital input 1 polarity: (oP; cL) oP=activated by closing the contact; cL=activated by
opening the contact.
2P
Digital input 2 polarity: (oP; cL) oP=activated by closing the contact; cL=activated by
opening the contact.
iF
Digital input 1 configuration: (do; ES; CP; EL; bA; dF;AU; HC; Fn; PA; nu) do=door switch
function; ES=energy saving mode control; CP=compressor lock; EA=external warning alarm,
"EA" label is displayed; bA=external lock alarm, "CA" label is displayed; dF=defrost activation;
Au=not used; HC=inversion of the kind of action; Fn=remote fan activation; PA=external
pressure switch alarm, label "PA" is displayed; nu=not used.
2F
Digital input 2 configuration: (do; ES; CP; EL; bA; dF;AU; HC; Fn; PA; nu) do=door switch
function; ES=energy saving mode control; CP=compressor lock; EA=external warning alarm,
"EA" label is displayed; bA=external lock alarm, "CA" label is displayed; dF=defrost activation;
Au=not used; HC=inversion of the kind of action; Fn=remote fan activation; PA=external
pressure switch alarm, label "PA" is displayed; nu=not used.
di
Digital input 1 delay: (0 to 99min) with iF=EA, bA or PA: is the delay between the detection
of the external alarm condition and its signalling. With iF=do it represents the delay to activate
the door open alarm.
2d
Digital input 2 delay: (0 to 99min) with 2F=EA, bA or PA: is the delay between the detection
of the external alarm condition and its signalling. With iF=do it represents the delay to activate
the door open alarm.
dC
Compressor and fan status when open door: (no; Fn; cP; Fc) no=normal functioning;
Fn=Fan OFF; cP=Compressor OFF; Fc=Compressor and Fan OFF.
rd
Regulation restart with door open alarm: (n; Y) n=no regulation if door is opened; Y=when
di is elapsed regulation restarts even if door open alarm is present.
Cd
Stop Compressor delay: (0 to 99 min) set the time between the activation of the digital input
and the stop of the compressor when iF or 2F=CPr.
OTHER
bd
ECO key configuration (immediate pressure): (dE; Li; Au; P2; ES) dE=defrost; Li=light;
Au=do not use; P2=probe P2 value visualisation; ES=energy saving mode
bn
DOWN key configuration (immediate pressure): (nu; OF; ES; dE) nu=not used;
OF=ONOFF function; ES=energy saving mode; dE=defrost
1592033060 - XRB06-07CH GB r1.0 12.02.2018.docx
b3
ECO key configuration (long pressure): (dE; Li; Au; P2; ES) dE=defrost; Li=light; Au=do
not use; P2=probe P2 value visualisation; ES=energy saving mode
b4
DOWN key configuration (long pressure): (nu; OF; ES; dE) nu=not used; OF=ONOFF
function; ES=energy saving mode; dE=defrost
d1
Thermostat probe display (read only)
d2
Evaporator probe display (read only)
d3
Third probe display (read only)
rS
Real Set Point value (read only)
rL
Software release
Pt
Parameter code table
10 DIGITAL INPUTS
The available digital inputs are configurable by using iF and 2F parameters. They are placed as follows:
-
Digital input 1 is in parallel to temperature probe P3. P3 present means that Digital Input 1 is
disabled.
-
Digital input 2 is in parallel to temperature probe P2. P2 present means that Digital Input 2 is
disabled.
10.1
DOOR SWITCH (IF, 2F = DO)
It signals the door status and the corresponding relay output status through the dC parameter:
no = normal (any change);
Fn = Fan OFF;
CP = Compressor OFF;
FC = Compressor and fan OFF.
Since the door is opened, after the delay time set through parameter di, the door alarm is enabled, the
display shows the message dA and the regulation restarts if rd=Y. The alarm stops as soon as the
external digital input is disabled again. With the door open, the high and low temperature alarms are
disabled.
10.2
ENERGY SAVING (IF, 2F = ES)
The Energy Saving function allows to change the set point value as the result of the SET+HES
(parameter) sum. This function is enabled until the digital input is activated.
10.3
ENERGY SAVING (IF, 2F = CP)
Compressor will be locked if the input is active.
10.4
EXTERNAL ALARM (IF, 2F = EA)
After delay (di or 2d) the display will show the label EA and the outputs status will not change. The alarm
ends when the digital input is deactivated.
10.5
SERIOUS ALARM (IF, 2F = BA)
After delay (di or 2d) the display will show the label CA and the outputs status will be deactivated.
The alarm ends when the digital input is deactivated.
10.6
START DEFROST (IF, 2F = DF)
It starts a defrost if there are the requested conditions. After the defrost is finished, the normal regulation
will restart only if the digital input is disabled otherwise the instrument will wait until the Md safety time is
expired.
10.7
KIND OF ACTION: HEATING OR COOLING (IF, 2F = HC)
This function allows inverting the regulation of the controller: from cooling to heating and vice versa.
10.8
REMOTE FAN MANAGEMENT (IF, 2F = FN)
Remote fan management by using digital input.
10.9
PRESSURE SWITCH (IF, 2F = PA)
After delay (di or 2d) the display will show the label PA and the outputs status will be deactivated. The
alarm end:
-
Automatically if the number of detected external events during the di or 2F period is lower than nS
-
Manual if the number of detected external events during the di or 2F period is higher than nS
11 INSTALLATION AND MOUNTING
12 ELECTRICAL CONNECTIONS
The instrument is provided with screw terminal block to connect cables with a cross section up to
2.5mm
2
. Before connecting cables make sure the power supply complies with the instrument's
requirements. Separate the probe cables from the power supply cables, from the outputs and the power
connections. Do not exceed the maximum current allowed on each relay, in case of heavier loads use a
suitable external relay.
12.1
PROBES
The probes shall be mounted with the bulb upwards to prevent damages due to casual liquid infiltration. It
is recommended to place the thermostat probe away from air streams to correctly measure the average
room temperature. Place the defrost termination probe among the evaporator fins in the coldest place,
where most ice is formed, far from heaters or from the warmest place during defrost, to prevent
premature defrost termination.
XRB06CH – XRB07CH
XRB06CH and XRB07CH shall be mounted on vertical panel, in a
29x71 mm hole, and fixed using the special bracket supplied.
The temperature range allowed for correct operation is 0 to 60°C.
Avoid places subject to strong vibrations, corrosive gases,
excessive dirt or humidity. The same recommendations apply to
probes. Let air circulate by the cooling holes.
3/5
Advertisement
