Emerson Dixell XWi70K, Installing And Operating Instructions

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1592026601 XWi70K STD FULL EN r1.6 2022.07.29.docx XWi70K 9/15
Temperature alarms “ HA ”, “ LA ” “ HA2 ” and “ LA2 ” automatically stop as soon as the temperature returns
to normal values.
Alarms
“EA” and “CA” (with i1F=bAL ) recovers as soon as the digital input is disabled.
Alarm “ CA” (with i1F=PAL ) recovers only by switching off and on the instrument.
23 WIRING DIAGRAMS
Depending on the specific model, some I/O’s could be present or not. The below diagrams refer to most
common models.
23.1 XWi70K – STANDARD VERSION
Power supply: 110 or 230Vac depending on the model, see Technical Spec.
Max 14A: depending on the terminal blocks, see Technical Data.
23.2 XWi70K – FULL VERSION
Power supply: 110 or 230Vac depending on the model, see Technical Spec.
Max 14A: depending on the terminal blocks, see Technical Data.
23.3 PIN DESCRIPTION
I/O DESCRIPTION
oA1 to oA5 Relay outputs
K+ Keyboard connector, positive line
K- Keyboard connector, negative line
Pb1 to Pb4 Temperature probes
Dig Inp 1 Digital input 1
Dig Inp 2 Digital input 2
Hot Key / TTL Hotkey connector and slave serial port (TTL levels)
VCC Serial VCC serial port, special cables required
Line Power Supply “Line”
N Power Supply “Neutral”
T Termination line for 2-wire RS485 Master
S1 to S6 I/O for serial compressor control
AOut: A1+ Analogue output 1, positive pin
AOut: A1- Analogue output 1, negative pin
AOut: A2+ Analogue output 2, positive pin
AOut: A2- Analogue output 2, negative pin
Freq out + Frequency output, positive pin (max current 10mA)
Freq out - Frequency output, negative pin (max current 10mA)
RS485 2-wire RS485 port, positive line
RS485 Master - 2-wire RS485 port, negative line
24 DEFAULT PARAMETER MAPS
24.1 LT
Label Description Value Level UOM
SEt Setpoint -10 °F
LS Minimum Set point -18 Pr1 °F
US Maximum Set point 42 Pr1 °F
Hy Compressor regulation differential in normal mode 1 Pr1 °F
Hy1
Variable Speed Compressor Differential in normal
mode
4 Pr1 °F
odS Output activation delay at start-up 0 Pr1 min
AC Anti-short cycle delay 2 Pr1 sec
AC1 Anti-short cycle delay (2nd compressor) 0 Pr2 sec
2CC
Activation mode for 2nd compressor: HAF=step
logic; FUL=delayed
HAF Pr2
rCC Enable compressor rotation no Pr2
MCo Maximum time with compressor on (0=disabled) 0 Pr2 min
rtr Regulation percentage=F(P1; P2) (100=P1; 0=P2) 100 Pr2
CCt Maximum duration for Pull Down 04:00 Pr1 hour
CCS
Pull Down phase differential (SET+CCS or
SET+HES+CCS)
1 Pr1 °F
oHt
Threshold for automatic activation of Pull Down in
normal mode (SET+HY+oHt)
10 Pr1 °F
Con Compressor ON time with faulty probe 30 Pr1 min
CoF Compressor OFF time with faulty probe 10 Pr1 min
PbC Probe selection ntC Pr2
ot Probe P1 calibration 0 Pr1 °F
P2P Probe P2 presence yes Pr1
oE Probe P2 calibration 0 Pr1 °F
P3P Probe P3 presence yes Pr2
o3 Probe P3 calibration 0 Pr2 °F
P4P Probe P4 presence no Pr2
o4 Probe P4 calibration 0 Pr2 °F
FMi
Minimum value for Variable Speed Compressor
(RPM * 10)
159 Pr2 RPM*10
FMA
Maximum value for Variable Speed Compressor
(RPM * 10)
450 Pr2 RPM*10
EMi
Minimum value for Variable Speed Compressor in
energy saving mode (RPM * 10)
159 Pr2 RPM*10
EMA
Maximum value for Variable Speed Compressor in
energy saving mode (RPM * 10)
450 Pr2 RPM*10
Fr0
Output value when Variable Speed Compressor is
OFF
0 Pr2 RPM*10
tSt PI regulator: temperature sampling time 01:00 Pr2 sec
iSt PI regulator: integral sampling time 01:00 Pr2 sec
vdC Type of Variable Speed Compressor vC1 Pr2
voS
Signal output variation for Variable Speed
Compressor (SET-
HY≤T≤SET+HY)
3 Pr2 RPM*10
vo2
Signal output variation for Variable Speed
Compressor (SET-HY-
HY1≤T<SET -HY e
SET+HY<T≤SET+HY+HY1)
6 Pr2 RPM*10
vo3
Signal output variation for Variable Speed
Compressor (SET-HY-HY1<T e T>SET+HY+HY1)
9 Pr2 RPM*10
PdP
Variable Speed Compressor (in percentage) during
any Pull Down
100 Pr2 %
SPi
Compressor speed (in %) in case of any probe error
during Con interval
80 Pr2 %
Aod
Compressor speed (in %) during any defrost cycle
(valid if tdf=in)
100 Pr2 %
AoF
Compressor speed during any pre-defrost phase
(valid if tdf=in)
100 Pr2 %
tHv PI regulator: max interval for output variation 120 Pr2 sec
tLv PI regulator: min interval for output variation 20 Pr2 sec
rSr
PI regulator: range for output value calculation
(RPM * 10)
20 Pr2 RPM*10
Str PI regulator: delay before range drift 60 Pr2 sec
dPt
PI regulator: divisor for PI response time reduction
(acts on both par. tSt and iSt)
2 Pr2
CMn Continuous control ON in normal mode no Pr2
CME Continuous control ON in energy saving yes Pr2
MnP
Compressor speed threshold to activate lubrication
(valid only for variable speed compressors,
0=disabled)
nu Pr2 %
tMi
Time range with compressor speed below MnP to
activate lubrication cycle
00:00 Pr2 hour
tMA
Time range with compressor speed at 100% to
activate lubrication cycle
0 Pr2 min