LAE electronic BD1-28**S series Instructions

BD1-28 INSTRUCTIONS FOR USE
Thank you for having chosen an LAE electronic product. Before installing the instrument, please read this instruction booklet
carefully in order to ensure safe installation and optimum performance.
1. INSTALLATION
■ The BD1-28 controller, size 107x95x47 mm (WxHxD), is to be secured to a DIN rail in such a position as to ensure that no liquid
infiltrates causing serious damage and compromising safety.
■ Make sure that electrical connections comply with the paragraph "wiring diagrams". To reduce the effects of electromagnetic
disturbance, keep the sensor and signal cables well separate from the power wires.
■ Place the probe T1 inside the room in a point that truly represents the temperature of the stored product.
■ Place the probe T2 on the evaporator where there is the maximum formation of frost.
■ The function of probe T3 is determined by the parameter T3. With T3=DSP the probe measures the temperature to be displayed.
With T3=CND the probe measures the condenser temperature, it must therefore be placed between the fins of the condensing
unit. With T3=2EU the probe measures the temperature of the second evaporator and it must therefore be placed where there is
the maximum formation of frost. With T3=NON, the third probe is disabled.
2. DISPLAY INFO
Alarm Room high temperature alarm
Thermostat output Room low temperature alarm
Fan output Condenser high temperature
Defrost output Generic alarm
Activation of 2 set Condenser clean warning
nd
Controller in stand-by Probe T1 failure
Defrost in progress Probe T2 failure
= Click
Door open alarm Probe T3 failure
In case of alarm, press any key to mute the buzzer sound.
Info items Navigation
Instant probe 1 temperature
Instant probe 2 temperature
*
Instant probe 3 temperature
*
Max probe 1 temperature
Min probe 1 temperature
Keypad Lock
** Compressor working weeks
Keypad state lock
*: only if enabled **: only if ACC > 0
3. OPERATION
Setpoint I and II: display and modification
Increase
1''
3''
Decrease
I Set II Set
3.1 SELECTION OF SECOND PARAMETER GROUP
Manual (IISM=MAN) Automatic (IISM=ECO)
ECO
(See Fig. 3)
3.2 DEFROST START
Manual Timed (DFM=TIM) Optimized (DFM=FRO)
T2 < 0°C
DFT hours
for DFT hours
Synchronized (D3O=DSY)
- - - Start and end are synchronized
+ + +
28 27 28 27 28 27
among connected BD1-28
DI3 DI3 DI3
BD1-28 BD1-28 BD1-28
3.3 DEFROST TERMINATION
Time limit Survey of 1 evaporator before time limit Survey of 2 evaporators before time limit
DTO minutes
DTO minutes or
T2 ≥ DLI
Resuming thermostatic cycle. When defrost is over, if DRN is greater than 0, all outputs will remain off for DRN minutes, in
order for the ice to melt completely and the resulting water to drain. Moreover, if probe T2 is active (T2=YES), the fans will re-start
when the evaporator gets to a temperature lower than FDD; Vice versa, if probe T2 is not active (T2=NO) or after defrost has
come to an end, such condition does not occur by end of the time FTO, after FTO minutes have elapsed the fans will be switched
on anyway.
Caution: if DFM=NON or C-H=HEA all defrost functions are inhibited; if DFT=0, automatic defrost functions are excluded. During
defrost, high temperature alarm is bypassed.
4. CONFIGURATION PARAMETERS
Access / Navigation / Modification
Visualize value
Increase or decrease value
Next or previous parameter
Exit
PAR RANGE DESCRIPTION
SPL -50..SPH Minimum limit for SP setting.
SPH SPL...110° Maximum limit for SP setting.
SP SPL... SPH Setpoint (value to be maintained in the room).
C-H
REF; HEA Refrigerating (REF) or Heating (HEA) control mode.
HY0 1...10°
Thermostat OFF -> ON differential.
HY1
0...10° Thermostat ON -> OFF differential.
CRT 0...30min Compressor rest time. The output is switched on again after CRT minutes have elapsed since the
previous switchover. We recommend to set CRT=03 with HY0<2.0°.
CT1
0...30min Compressor/Heater output run when probe T1 is faulty. With CT1=0 the output will always remain OFF.
CT2
0...30min Compressor/Heater output stop when probe T1 is faulty. With CT2=0 and CT1>0 the output will always
be ON. Example: CT1=4, CT2= 6: In case of probe T1 failure, the compressor will cycle 4 minutes ON
and 6 minutes OFF.
DFM
NON; Defrost start mode
TIM; NON : defrost function is disabled (the following parameter will be FCM).
FRO TIM : regular time defrost.
FRO : the defrost time count is only increased when the conditions occur for frost to form on the
evaporator (optimised time increase). If the evaporator works at 0°C, defrost frequency depends on
the thermal load and climatic conditions. With setpoints much lower than 0°C, defrost frequency mainly
depends on the refrigerator operating time.
DFT 0...99 hours Time interval among defrosts. When this time has elapsed since the last defrost, a new defrost cycle is started.
For example, with DFM=TIM and DFT=06, a defrost will take place every 6 hours.
DFB
NO/YES Defrost timer backup. With DFB=YES, after a power interruption, the timer resumes the count from where
it was left off with ±30 min. approximation. With DFB=NO, after a power interruption, the defrost timer will
re-start to count from zero.
DLI
-50...110° Defrost end temperature.
DTO 1...120min Maximum defrost duration.
DTY OFF; Defrost type.
ELE; OFF: off cycle defrost (Compressor and Heater OFF).
GAS ELE: electric defrost (Compressor OFF and Heater ON).
GAS: hot gas defrost (Compressor and Heater ON).
DSO
OFF; Defrost start - thermostat cycle synchronization
LO; OFF: none. The defrost will occur without delay.
HI LO: defrost start will be postponed to compressor cut-out (SOD = max delay).
= Click and Hold
HI: defrost start will be postoponed to compressor cut-in (SOD = max delay).
SOD 0...30 min Timeout for defrost start - thermostat cycle synchronization. If 0, defrost will start immediately.
DPD
0...240sec Evaporator pump down. At the beginning of defrost, defrost outputs (determined by DTY) are OFF for
DPD seconds.
Display value
DRN 0...30min Pause after defrost (evaporator drain down time).
Next
DDM
RT; Defrost display mode. During defrost the display will show:
Previous LT; RT: the real temperature;
SP; LT : the last temperature before defrost;
Exit
DEF SP : the current setpoint value;
DEF : "dEF".
THI / TLO / CND reset
DDY 0...60min Display delay. The display shows the information selected with parameter DDM during defrost and for
DDY minutes after defrost termination.
FID NO/YES Fans active during defrost.
FDD -50...110° Evaporator fan re-start temperature after defrost.
FTO
0...120min Maximum evaporator fan stop after defrost.
FCM NON; Fan mode during thermostatic control.
Standby (SB=YES)
TMP; NON : The fans remain ON all the time;
TIM TMP : Temperature-based control. The fans are ON when the compressor is ON. When the compressor
is turned OFF, the fans remain ON as long as the temperature difference Te-Ta is greater than FDT.
The fans are turned ON again with FDH
differential. (Te = Evaporator temperature,
Ta = Air temperature);
TIM : Timed-based control. The fans are
Contact (IISM=DI)
ON when the compressor is ON. When the
compressor is OFF, the fans switch ON and
OFF according to parameteres FT1, FT2,
FT3 (See Fig.2).
DxA=CLS DxA=OPN
FDT -12...0° Evaporator-Air temperature difference for the fans to turn OFF after the compressor has stopped.
FDH 1...12° Temperature differential for fan re-start.
Remote (DxO=RDS) Example: FDT = -1, FDH=3. In this case, after the compressor has stopped, the fans are OFF when Te
> Ta - 1 (FDT), whereas the fans are ON when Te < Ta - 4 (FDT-FDH).
FT1 0...180sec Fan stop delay after compressor/heater stop.
FT2
0...30min Timed fan stop. With FT2=0 the fans remain on all the time.
DxA=CLS DxA=OPN
FT3 0...30min Timed fan run. With FT3=0, and FT2 > 0, the fans remain off all the time.
ATM
NON; Alarm threshold management.
ABS; NON : all temperature alarms are inhibited (the following parameter will be ACC).
REL ABS : the values programmed in ALA and AHA represent the real alarm thresholds.
REL : the alarm threshold is obtained by the sum of setpoint, thermostat differential and ALR/AHR.
ALA -50... 110°
Low temperature alarm threshold.
AHA
-50... 110° High temperature alarm threshold.
ALR -12... 0°
Low temperature alarm differential. With ALR=0 the low temperature alarm is excluded.
DTO minutes
AHR
0... 12° High temperature alarm differential. With AHR=0 the high temperature alarm is excluded.
or
ATI T1; T2; T3
T2 and T3 ≥ DLI Probe used for temperature alarm detection.
ATD 0... 120min
Delay before alarm temperature warning.
ACC 0...52 Condenser periodic cleaning. When the compressor operation time, expressed in weeks, matches the
weeks ACC value programmed, "CL" flashes in the display. With ACC=0 the condenser cleaning warning is
disabled and CND disappears from Info Menu.
IISM
NON; Switchover mode to second parameter set
MAN; NON : inhibition to use the second parameter group (the following parameter will be SB).
ECO; MAN : button switches the two parameter groups over.
DI ECO : automatic switchover to the second parameter group, when ECO conditions are detected.
DI : switchover to the second parameter group when DIx input is on.
IISL
-50... IISH Minimum limit for IISP setting.
IISH IISL... 110°
Maximum limit for IISP setting.
IISP IISL... IISH Setpoint in mode 2.
IIH0 1... 10° Thermostat OFF->ON differential in mode 2.
IIH1 0... 10° Thermostat ON->OFF differential in mode 2.
IIDF
0...99 hours Time interval among defrosts in mode 2.
IIFC NON;TMP;
Fan control in mode 2. See FCM.
TIM
ECS
1...5 Controller sensitivity for the automatic switchover from Group I to Group II (1=minimum, 5=maximum).
EPT
Eco pull-down time. Only with IISM=ECO. Group I parameters are used in regulation for at least EPT
0...240 min
minutes. See Fig.3
SB NO/YES
Stand-by button enabling.
DSM
NON; Door switch input mode:
ALR; NON : door switch inhibited
ALR : when DIx=DOR and the digital input is on, an alarm is generated after DAD minutes
STP
STP : when DIx=DOR and the digital input is on, in addition to the alarm, the fans are immediately
stopped and the compressor is stopped after CSD minutes.
DAD
0...30 min Delay before door open alarm warning.
CSD 0...30 min Compressor/heater stop delay after door has been opened. If CSD=NO compressor/heater never stops
NO due to the door opening.
D1O NON; DI1 digital input operation
NON : digital input 1 not active.
DOR;
ALR; DOR : door input.
IISM; ALR : when the input is on, an alarm is generated (if AHM=STP, the compressor is stopped and the
RDS defrosts are suspended).
IISM : when the input is on, the controller will use group II parameters.
RDS : when the input is on, a defrost is started (remote control).
D1A
OPN; CLS. DI1 digital input activation.
OPN : on open
CLS : on close
D2O
See D1O DI2 digital input operation. See D1O.
D2A OPN; CLS. DI2 digital input activation. See D1A.
D3O NON; DI3 digital input operation
... NON ... RDS : See D1O.
RDS; DSY : defrost synchronization. The controllers will all start and end defrost together. The first controller
DSY. in defrost will get defrost of all the others started. The last controller ending defrost will get defrost of all
the others stopped.
D3A
OPN; CLS. DI3 digital input activation. See D1A.
LSM
NON; Light control mode
MAN; NON : light output not controlled.
ECO; MAN : light ouput controlled through button
DI1; ECO : lights activated/deactivated following the ECO state.
DI2; DIx : lights activated/deactivated following the DIx state.
DI3.
LSA OPN; Light activation (only with LSM=ECO or LSM=DIx).
CLS OPN : lights on with DIx open or ECO mode deactivated.
CLS : lights on with DIx closed or ECO mode activated.
OA1 NON; AUX 1 output operation
LGT; NON : output disabled (always off).
0-1; LGT : output enabled for light control.
2CU; 0-1 : the relay contacts follow the on/standby state of controller.
2EU; 2CU : output programmed for the control of an auxiliary compressor.
ALO; 2EU : output enabled for the control of the electrical defrost of a second evaporator.
ALC ALO : contacts open when an alarm condition occurs.
ALC : contacts make when an alarm condition occurs.
OA2
See OA1 AUX2 output operation. See OA1.
2CD 0...120 sec Auxiliary compressor start delay. If OAx=2CU the auxiliary output is switched on with a delay of 2CD
seconds after the main compressor has cut-in. Both compressors are turned off at the same time.
OS1
-12...12° Probe T1 offset.
T2 NO/YES Probe T2 enabling (evaporator).
OS2
-12...12° Probe T2 offset.
T3 NON; Auxiliary probe T3 operation
NON : probe T3 not fitted.
DSP;
CND; DSP : temperature T3 to be displayed.
2EU CND : condenser temperature measurement.
COMPR. COMPR. OFF COMPR.
2EU : second evaporator temperature measurement.
ON ON
OS3
ON -12...12° Probe 3 offset.
AHM NON; Operation in case of high condenser alarm
OFF
ALR; NON : high condenser alarm inhibited.
STP; ALR : in case of alarm, "HC" flashes in the display and the buzzer is switched on.
FT1 FT2 FT3 FT2 FT3
STP : in addition to the alarm symbols displayed, the compressor is stopped and defrosts are suspended.
Fig.2 Time-optimised fan control (FCM=TIM)
AHT
-50...110° Condensation temperature alarm (referred to T3 probe).
TLD 1...30 min Delay for minimum temperature (TLO) and maximum temperature (THI) logging.
TDS
T1; Selects the temperature probe to be displayed.
1-2; T1 : probe T1
T3 1-2 : the AVG-weighted average between T1 and T2
T3 : probe T3
AVG
0...100% The relative weight of T2 on T1 (if TDS = 1-2)
Example 1: T1 = -5°, T2 = -20°, AVG = 100%. The displayed temperature will be -20° (T1 has no effect)
Example 2: T1 = -5°, T2 = -20°, AVG = 60%. The displayed temperature will be -14.
SCL
1°C; Readout scale.
2°C; 1°C : measuring range -50...110°C (0.1°C resolution within -9.9 ÷ 9.9°C interval, 1°C outside)
°F 2°C : measuring range -50 ... 110°C
°F : measuring range -55 ... 180°F
SIM 0...100 Display slowdown.
ADR
1...255 BD1-28 address for PC communication.
SP+HY0
SP
SP-HY1
EPT
Heavy duty
5. WIRING DIAGRAMS
1 2
AUX 2 AUX 1
RS485
7A
20 21 22 23 24 25 26 27 28
AIR T1
EVP T2
Aux
(if OAx=LGT).
Heavy duty
IISP+IIH0
condition detection
IISP
IISP-IIH1
ECO condition
detection
EPT
Eco Heavy duty
Fig.3 - EPT parameter
FUSE 20A
L
N
Power Supply
100...240 Vac
4 5 6 7 8 9 10 11 13 19
NEUTRAL
AC
DC
7A 16(4)A 16(4)A 16(12)A
remote
Remote
unit
DI1 DI2 DI3
AUX T3
BD1-28
6. TECHNICAL DATA
Power supply
BD1-28....W 100-240Vac ±10%, 50/60Hz, 3W
Relay output max loads (240Vac)
Model
BD1-28..S..-. BD1-28..Q..-.
Output
Compressor 16A resistive 12A resistive
12 FLA 72 LRA 12 FLA 72 LRA
Evap. Fan 16A resistive 12A resistive
3.6 FLA 21.6 LRA 3.6 FLA 21.6 LRA
Defrost 16A resistive 12A resistive
3.6 FLA 21.6 LRA 3.6 FLA 21.6 LRA
Auxiliary loads 1 7A resistive 7A resistive
1 FLA 4 LRA 1 FLA 4 LRA
Auxiliary loads 2 7A resistive 7A resistive
1 FLA 4 LRA 1 FLA 4 LRA
Input
NTC 10KΩ@25°C LAE Part No. SN4...
Measurement Range
-50...110°C, -58...180°F
-50 / -9.9 ... 9.9 / 110°C
Measurement accuracy
<0.5°C within the measurement range
Operating conditions
-10 ... +50°C; 15%...80% r.H.
Pollution degree 2
Approvals and Reference Norms
- RoHS 2011/65/UE
- EN50082-1; EN55022 (Class B);
- EN60730-1; EN60730-2-9;
- UL60730-1, File SA32385