1592020680 XRi60CH EN r2.0 2021.07.14
XRi60CH
6/9
16.1
PROBE CONNECTION
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.
17.
HOW TO USE THE HOT KEY
To enable the HOT-KEY port (5-pin connector), set the par.
oAn=n
.
17.1
PROGRAM A HOT KEY FROM AN INSTRUMENT (UPLOAD)
1.
Program one controller with the front keypad.
2.
When the controller is ON, insert the
“
HOT-KEY
”
and push
UP
button; the
“
uPL
”
message
appears followed a by a flashing
“
End
”
label.
3.
Push
SET
button and the
“
End
”
will stop flashing.
4.
Turn OFF the instrument, remove the
“
HOT-KEY
”
and
then turn it ON again.
NOTE
: the “
Err
” message
appears in case of a failed programming operation. In this case push again
button if you want to restart the upload again or remove the
“
HOT-KEY
”
to abort the operation.
17.2
PROGRAM AN INSTRUMENT BY USING A HOT KEY (DOWNLOAD)
1.
Turn OFF the instrument.
2.
Insert a
pre-programmed
“
HOT-KEY
”
into the 5-PIN receptacle
and then turn the Controller
ON.
3.
The parameter list of the
“
HOT-KEY
”
will be automatically downloaded into the Controller
memory. T
he “
doL
” message
will blink followed a by a flashing
“
End
”
label.
4.
After 10 seconds the instrument will restart working with the new parameters.
5.
Remove the
“
HOT-KEY
”
.
NOTE
:
the message “Err” is displayed for failed programming. In this case turn
the unit off and then
on if you want to restart the download again or remove the
“
HOT-KEY
”
to abort the operation.
18.
ALARM SIGNALING
Message
Cause
Outputs
P1
Room probe failure
Compressor output works with Con and CoF
P2
Evaporator probe failure
Defrost end is timed
P3
Third probe failure
Outputs unchanged
P4
Fourth probe failure
Outputs unchanged
HA
Maximum temperature alarm
Outputs unchanged
LA
Minimum temperature alarm
Outputs unchanged
HA2
Condenser high temperature
It depends on the AC2 parameter
LA2
Condenser low temperature
It depends on the bLL parameter
dA
Door open
Compressor restarts
EA
Warning
Output unchanged
CA
Lock alarm (ixF=bAL, PAL)
All outputs OFF
rtC
Real time clock parameter error
Output unchanged, defrost follows idF, need to
set RTC parameters
rtF
Real time clock malfunctioning
Output unchanged, defrost follows idF
18.1
BUZZER MUTING OR ALARM RELAY OUTPUT DEACTIVATION
If
tbA=Y
, the buzzer and the relay are silenced by pressing any key.
If
tbA=n
, only the buzzer is silenced while the alarm relay is on until the alarm condition recovers.
18.2
ALARM RECOVERY
Probe alarms
“
P1
”, “
P2
”, “
P3
” and “
P4
”
start some seconds after the fault in the related probe; they
automatically stop some seconds after the probe restarts normal operation. Check connections before
replacing the probe.
Temperature alarms “
HA
” and “
LA
” automatically stop as soon as the temperature returns to normal
values.
Alarms
“
EA
”
and
“
CA
”
(with
ixF=bAL, PAL
)
recover as soon as the digital input is disabled.
18.3
OTHER MESSAGES
Pon
Keyboard unlocked.
PoF
Keyboard locked
noP
In programming mode: no parameter in Pr1.
On the display or in dP2, dP3, dP4: the selected probe is not enabled.
19.
WIRING DIAGRAM
1.4
PIN DESCRIPTION
I/O
DESCRIPTION
oA1 to oA3
Relay outputs
P1 to P4
Temperature probes
D.I.
Digital input 1
Hot Key / Freq
Hotkey connector and Frequency output for VSC
Line
Relay
Power Supply “Line”
Terminal 4
Neutral for high and low voltage power supply
Terminal 5
Line for high voltage power supply @[110 or 230VAC]
20.
DEFAULT SETTING VALUES
Label Description
LT
NT Level
Unit
SEt
Set Point
-20.0
3.0
°C
rtC
Real time clock settings menu
Pr1
LS
Minimum Set point
-50.0 -50.0 Pr2
°C
US
Maximum Set point
50.0
50.0
Pr2
°C
Hy
Compressor regulation differential in normal mode
0.3
2.0
Pr1
°C
Hy1
Variable Speed Compressor Differential in normal
mode
0.7
1.0
Pr1
°C
odS
Output activation delay at start-up
1
1
Pr1
min
AC
Anti-short cycle delay
30
1
Pr1
sec
MCo
Maximum time with compressor on (0=disabled)
0
0
Pr2
min
rtr
Regulation percentage=F(P1; P2) (100=P1; 0=P2)
100
0
Pr2
CCt
Maximum duration for Pull Down
00:00 01:00 Pr2
hh:mm
CCS
Pull Down phase differential (SET+CCS or
SET+HES+CCS)
0.0
0.0
Pr2
°C
oHt
Threshold for automatic activation of Pull Down in
normal mode (SET+HY+oHt)
0.0
0.0
Pr2
°C
Con
Compressor ON time with faulty probe
20
20
Pr2
min
CoF
Compressor OFF time with faulty probe
5
5
Pr2
min
PbC
Probe selection
ntC
ntC
Pr2
ot
Probe P1 calibration
0.0
0.0
Pr1
°C
P2P
Probe P2 presence
no
no
Pr2
oE
Probe P2 calibration
0.0
0.0
Pr2
°C
P3P
Probe P3 presence
no
no
Pr2
o3
Probe P3 calibration
0.0
0.0
Pr2
°C
P4P
Probe P4 presence
no
no
Pr2
o4
Probe P4 calibration
0.0
0.0
Pr2
°C
FMi
Minimum value for Variable Speed Compressor (RPM
* 10)
200
200
Pr2 RPM*10
FMA
Maximum value for Variable Speed Compressor (RPM
* 10)
450
450
Pr2 RPM*10
Fr0
Output value when Variable Speed Compressor is
OFF
0
0
Pr2 RPM*10
tSt
PI regulator: temperature sampling time
01:00 01:00 Pr2
sec
iSt
PI regulator: integral sampling time
10.00 05:00 Pr2
sec
voS
Signal output variation for Variable Speed Compressor
(SET-
HY≤T≤SET+HY)
2
3
Pr2 RPM*30
vo2
Signal output variation for Variable Speed Compressor
(SET-HY-
HY1≤T<SET
-HY e
SET+HY<T≤SET+HY+HY1)
5
7
Pr2 RPM*30
vo3
Signal output variation for Variable Speed Compressor
(SET-HY-HY1<T e T>SET+HY+HY1)
7
10
Pr2 RPM*30
PdP
Variable Speed Compressor (in percentage) during
any Pull Down
90
nU
Pr2
%
t1F
Time with Variable Speed Compressor at minimum
before stopping it
0
0
Pr2
min
SPi
Compressor speed (in %) in case of any probe error
during Con interval
30
80
Pr2
%
Aod
Compressor speed (in %) during any defrost cycle
(valid if tdf=in)
70
0
Pr2
%
AoF
Compressor speed during any pre-defrost phase (valid
if tdf=in)
50
0
Pr2
%
tHv
PI regulator: max interval for output variation
90
30
Pr2
sec
tLv
PI regulator: min interval for output variation
30
10
Pr2
sec