ALCO EC3-33x User manual

EC3-33x
User Manual
Rev. 4 - 14.01.2003

EC3-33x Coldroom Controller with EX5
User Manual EC3-33x
A.6.5.063E - Rev 4
2
Emerson Electric GmbH & Co - ALCO CONTROLS - Heerstr. 111 - D-71332 Waiblingen - Germany - Tel.: ..[phone] - Fax: [phone]
The EC3-33x coldroom controller is a universal controller for
refrigeration applications with an electronic stepper motor
expansion valve like the EX5. The controller has six
temperature inputs for coil in, coil out, air in, air out and defrost
termination temperatures. The sixes temperature input is a
universal temperature input. For measurement of the saturation
pressure a PT3 pressure sensor with 4 – 20 mA interface can
be connected to the controller. The controller has four relay
outputs, one defined for compressor control, one defined for
defrost heater control, one defined for an alarm output and one
as a universal relay output. The TRIAC outputs is defined for
fan control. The TRIAC can drive 24V / 230V 4A. The controller
has four digital inputs for 24V AC/ DC or 230V AC. One input is
defined for compressor failure, one input is defined for a door
contact and two inputs are free for universal purpose. The
stepper motor interface can drive stepper motor with 24V DC
and 0.7 A. The optional display can show values with a decimal
point in the range between -19.9 and +19.9°C otherwise without
decimal point. An IR receiver for the optional IR remote control
unit is build in. For communication purposes, an Echelon
LONWorks interface is installed. Two transceiver types are
available RS485 or FTT10A. The supply voltage is 24 VAC.
Transformers for 230V or 110V mains supply are available as
options.
DISPLAY ECD-001:
The data to be shown on the display can be selected by the user.
In case of on alarm, the alarm code is displayed alternately with the
selected data. The alarm code can be inhibited by the user. To
scroll through all possible displayable data press the SEL button.
The display will show for one second the numerical identifier of the
data and then the selected data. After two minutes the display will
return to the by /1 selected data.
NEURON ID / SERVICE BUTTON:
•Display :
Press the button for app. 1 second to send the Neuron ID.
An LED in the left upper corner will indicate the transmission
of the Neuron ID.
Controller:
There is a small hole left of the network connector. Use a
small pen or screwdriver to press the switch behind the hole.
An LED close to the switch will light to indicate the
transmission of the Neuron ID.
LOAD DEFAULT PARAMETERS:
•Use a small pen or screwdriver to press the service pin switch
on the controller and switch on the power supply on. The
EC3-21x will be reset to default parameters.
PARAMETERS:
The configuration parameters are protected by a numerical
password. The default password is “12”. To select the
parameter configuration :
•Press the PRG button for more than 5 seconds
•A flashing 0 is displayed
•Press or until 12 is displayed; (password)
•Press SEL to confirm password
•The first modifiable parameter code is displayed (/1).
•To modify parameters see Parameters modification below.
PARAMETER MODIFICATION:
•Press or to show the code of the parameter that has to
be changed;
•Press SEL to display the selected parameter value;
•Press or to increase or decrease the value;
•Press SEL to temporally confirm the new value and display its
code;
Repeat the procedure from the beginning "press or to
show..."
To exit modifying the parameters with the new values:
•Press PRG to confirm the new values and exit the parameters
modification procedure.
To exit without modifying any parameter:
•Do not press any button for at least 60 seconds (TIME OUT).
•Press “ESC” on IR remote control.
DEFROST ACTIVATION:
A defrost cycle can be activated locally from the keypad :
•Press the button for more than 5 seconds
•A flashing 0 is displayed
•Press or until 12 is displayed; (password)
•Press SEL to confirm password
•The defrost cycle is activated
CLEAR ALARMS:
A defrost termination or fan activation alarm can be cleared
from the keypad :
•Press or for more than 5 seconds.
•“CL” will be shown in the display to indicate that the
alarms are cleared.
INDICATIONS ON THE DISPLAY :
COMPRESSOR Logical status of the compressor
relay
FAN Logical status of the fan relay
DEFROST Logical status of the defrost heater
relay
ALARM Alarm condition

EC3-33x Coldroom Controller with EX5
User Manual EC3-33x
A.6.5.063E - Rev 4
3
Emerson Electric GmbH & Co - ALCO CONTROLS - Heerstr. 111 - D-71332 Waiblingen - Germany - Tel.: ..[phone] - Fax: [phone]
LIST OF PARAMETERS
Parameter Values
/ DISPLAY PARAMETERS Min Max Unit Def
/1 Value to be shown on display 0 11 - 0
/2 No alarms 0 1 flag 0
/5 Temperature unit 0 1 flag 0
/6 Decimal point 0 1 flag 0
/7 Display during defrost 0 2 flag 0
/C Temperature alignment for /1 = 0 -20.0+20.0 K 0.0
A ALARM PARAMETERS Min Max Unit Def
A0 Mean factor alarm temperature 0 100 % 100
A1 Low temperature alarm delay 0 180 min 5
A2 High temperature alarm delay 0 180 min 5
A3 High temperature alarm delay after 0 180 min 10
defrost
Ad Door alarm delay 0 180 min 2
AH High temperature alarm threshold AL 70 °C/K 40
AL Low temperature alarm threshold -50 AH °C/K -40
At Type of alarm threshold values 0 1 flag 0
0 = absolute temperatures °C
1 = relative temperatures K to setpoint
r THERMOSTAT PARAMETERS Min Max Unit Def
r0 Door contact function 0 15 flag 6
r1 Min set-point value -40 r2 °C -40
r2 Max set-point value r1 60 °C 40
r3 Day / night control 0 1 flag 1
0 = off
1 = on
r4 Thermostat mode 0 4 - 1
r6 Set-point night operation r1 r2 °C 4.0
r7 Difference night operation 0.1 20.0 K 2.0
r8 Mean factor day operation 0 100 % 100
r9 Mean factor night operation 0 100 % 50
rd Difference day operation 0.1 20.0 K 2.0
St Set-point day operation r1 r2 °C 2.0
d DEFROST PARAMETERS Min Max Unit Def
d0 Defrost mode 0 2 - 1
d1 Termination by time / temperature 0 3 - 0
d2 Defrost termination sensor 0 1 flag 1
d3 Pulsed defrost 0 1 flag 0
d4 Defrost at power up 0 1 flag 0
d5 Delay for power up defrost 0 180 min 0
d6 Pump down delay 0 180 sec 0
d7 Drain delay 0 180 min 2
d8 Injection delay 0 180 sec 0
d9 Demand defrost mode 0 2 - 0
dd Pulsed defrost difference 1 20 K 2
dH Pulsed defrost set-point -40 dt °C 5
dt Defrost termination temperature -40 90 °C 8
dP Maximal defrost duration 0 180 min 30
dI Defrost interval 0 192 h 8
dU Start up delay by synchronization 0 180 min 30
Parameter Values
F FAN PARAMETERS Min Max Unit Def
F1 Fan start-up sequence after defrost 0 4 - 0
F2 Fan status during no cooling 0 2 - 0
F3 Fan status during defrost 0 1 flag 0
F4 Fan stop delay time by no cooling 0 30 min 0
F5 Fan status during cleaning 0 1 flag 0
Fd Fan start delay time after defrost 0 30 min 0
Ft Fan on temperature after defrost -40 40 °C 0
c COMPRESSOR PARAMETERS Min Max Unit Def
c0 Delay first start of compressor 0 15 min 0
c1 Cycle time of compressor 0 15 min 0
c2 Min. stop time of compressor 0 15 min 0
c3 Min. run time of compressor 0 15 min 0
u SUPERHEAT PARAMETERS Min Max Unit Def
u0 Refrigerant 0 4 - 3
u1 Correction glide / pressure drop -20.0 20.0 K 0.0
u2 MOP control 0 1 flag 0
u3 MOP temperature -40 40 °C 0
u4 Control mode 0 2 - 1
u5 Superheat init set-point u6 u7 K 6
u6 Superheat set-point min 3 u7 K 3
u7 Superheat set-point max u6 20 K 15
u8 Saturation temperature 0 1 flag 1
uu Start opening 50 100 % 100
ut Valve type 0 3 - 0
H OTHER PARAMETERS Min Max Unit Def
H2 Keyboard and IR remote control 0 3 - 3
0 = all disabled (Caution, access to controller only via LON networ
possible)
1 = Keyboard enabled
2 = IR remote control enabled
3 = Keyboard and IR remote control enabled
H3 IR remote control access code 0 199 - 0
H5 Password 0 199 - 12

EC3-33x Coldroom Controller with EX5
User Manual EC3-33x
A.6.5.063E - Rev 4
4
Emerson Electric GmbH & Co - ALCO CONTROLS - Heerstr. 111 - D-71332 Waiblingen - Germany - Tel.: ..[phone] - Fax: [phone]
Remarks
•/1 Value to be shown on display
0 = Thermostat control temperature, Alignment factor /C will
only work with this temperature display
1 = Air in temperature
2 = Air out temperature
3 = Alarm temperature
4 = Defrost termination temperature
5 = Coil in temperature
6 = Coil out temperature
7 = Superheat
8 = Valve opening
9 = Defrost status
10 = not used
11 = not used
•/2 No alarms
0 = alarms will be shown on display
1 = alarms will not be shown on display
•/5 Temperature unit for display
0 = °C
1 = °F
•/6 Display with decimal point
0 = yes, in the range from –19.9 to 19.9
1 = no
•/7 Display during defrost
0 = “df”
1 = “df” + defrost termination temperature
2 = “df” + control temperature
•r0 Door contact function
Contact closed or nviDoor = ST_ON
Value = Cooling + Alarm + Timer + Action
Cooling 0 = cooling
1 = no cooling
Alarm 0 = temperature alarm on, door alarm
2 = temperature alarm off, door alarm off
Timer 0 = Timer not started
4 = Timer started
Action when timer expired
0 = temperature alarm on, door alarm
8 = temperature alarm on, door alarm,
cooling restart if “Cooling = 1”
•r4 Thermostat mode
0 = off, no thermostat function, continues cooling
air in and air out sensor monitoring off, no temp. alarms
generated
1 = cooling, deadband control
cut in = set-point + difference
cut out = set-point
2 = cooling, modulating thermostat
cut in = set-point
cut out = set-point – difference /2
3 = heating, deadband control
cut in = set-point – difference
cut out = set-point
4 = on, external control by nviValve
air in and air out sensor monitoring off, temp. alarms
will be generated
•A0 Mean factor alarm temperature
•r8 Mean factor day operation
•r9 Mean factor night operation
Temperature calculation by the following formula
()() 100/*MeanFactorAirAirAireTemperatur outinin −−=
Mean factor = 0 , Temperature = Air in
Mean factor = 100, Temperature = Air out
•d0 Defrost mode
0 = natural defrost, defrost heater not activated
pulsed defrost not possible, synchronization by bindings
1 = forced defrost, defrost heater activated, pulsed
defrost possible, synchronization by bindings
2 = forced defrost, defrost heater activated, pulsed
defrost possible, synchronization by nviStartUp
•d1 Termination by temperature / time
0 = termination by temperature, termination by time
will generate an alarm
1 = termination by time, termination by temperature
will generate an alarm
2 = first, what ever comes first time or temperature,
no alarm
3 = last, by time and temperature, no alarm
•d2 Defrost termination sensor
0 = defrost termination sensor
1 = air out sensor
•d3 Pulsed defrost
0 = off, no pulsed defrost, heaters switched off at
defrost termination temperature dt or max. time
dP whatever is selected
1 = on, pulsed defrost, dd and dH in use, heaters are
switched off at dH and switched on again at
dH – dd
•d6 Pump down delay
The compressor will run during pump down delay while
the valve is closed
•d8 Injection delay
The valve is open during injection delay while the
compressor is not running
•d9 Demand defrost mode
0 = demand defrost off
1 = on
2 = on + defrost if no demand defrost within dI
•F1 Start up sequence after defrost
0 = on
1 = delayed by time Fd, error on temperature
2 = by temperature Ft, error on time
3 = first, whatever comes first time or temperature,
no alarm
4= last, time and temperature must come, no alarm
•F2 Fan status during no cooling
0 = on
1 = off
2 = delayed by F4

EC3-33x Coldroom Controller with EX5
User Manual EC3-33x
A.6.5.063E - Rev 4
5
Emerson Electric GmbH & Co - ALCO CONTROLS - Heerstr. 111 - D-71332 Waiblingen - Germany - Tel.: ..[phone] - Fax: [phone]
•F3 Fan status during defrost
0 = on
1 = off
•F5 Fans status during cleaning
0 = off
1 = on
•u0 Refrigerant
0 = R22
1 = R134a
2 = R507
3 = R404A
4 = R407C
•u1 Correction
Glide = positive Values
Pressure drop = negative Values
•u2 MOP Control
0 = off
1 = on
•u4 Control Mode
0 = off
1 = fixed superheat
2 = adaptive superheat
•u8 Saturation Temperature
0 = Coil in temperature
1 = Pressure
•ut Valve type
0 = EX5
1 = EX6
2 = EX7
3 = EX8
Note: Concerning the indicated parameters, it is recommended to check,
before installing, if the factory value is suitable for the required use

EC3-33x Coldroom Controller with EX5
User Manual EC3-33x
A.6.5.063E - Rev 4
6
Emerson Electric GmbH & Co - ALCO CONTROLS - Heerstr. 111 - D-71332 Waiblingen - Germany - Tel.: ..[phone] - Fax: [phone]
ALARMS AND MESSAGES
ALARM CODES
E0 Coil in sensor failure
E1 Coil out sensor failure
E2 Air in sensor failure
E3 Air out sensor failure
E4 Defrost termination sensor failure
E5 Temp. 6 sensor failure
E6 Pressure sensor failure
•No sensor connected.
•The sensor cable is broken or short circuited.
Er Data error
•Data send to the display is out of range.
Ad Door open alarm
AH High temperature alarm
AL Low temperature alarm
AE Thermostat emergency operation
•Air in and air out sensor failure
AF Superheat, external system failure
•External failure input is active
Ao Superheat, emergencyoperation
•Sensor failure
Ar Superheat, no refrigerant flow
•No refrigerant flow was detected
Au Superheat, Valve opening 100%
•Valve at 100 % opening for more then 2 minutes
dt Defrost termination failure by time or
temperature
Ft Fan start-up failure by time or
temperature
Ab external battery alarm
•external battery indicates an alarm
MESSAGES
--- No data
•The display will show an “---” at node start up and when no
data is send to the display.
In Configuration data initialization
•The display will show an “In” when the configuration data
are initialized with the factory default values.
Id Wink request received
•The display will show a flashing “Id” when the wink request
was received. The flashing “Id” will be shown on the display
until the service button will be pressed, or a 30 min delay
timer will expire or a second wink request will be received
by the node.
OF Offline
•The node is offline, no application is running. This is the
result of a network management command an will happen
for example during node installation.
oF Digital input status
on Digital input status
•Indication of the digital inputs, of = switch open, on = switch
closed
dS Defrost standby
dP Defrost pump down
df Defrost cycle
dd Defrost drain delay
dI Defrost injection delay
du Defrost start up delay
Cn Cleaning
CL Alarms are cleared
N.B. When cleaning the display use damp cloth and neutral
detergent.

EC3-33x Coldroom Controller with EX5
User Manual EC3-33x
A.6.5.063E - Rev 4
7
Emerson Electric GmbH & Co - ALCO CONTROLS - Heerstr. 111 - D-71332 Waiblingen - Germany - Tel.: ..[phone] - Fax: [phone]
TECHNICAL SPECIFICATIONS
Temperature ranges:
Sensor -50 / +50°C or -58/+122°F
Enclosure
Operating 0 / +50°C or 32 / +122°F
Storage -10 / +70°C or 14 / +158°F
Power supply: 24V AC, -15%, +10%
Consumption: 12 VA
Case:
Controller: Aluminum 255 x 100 x 65 mm
Display: Auto extinguishing Plastic, 75 x 33 x 73 mm
Mounting:
Controller; DIN rail
Display: Panel mounting
Connections: Plug in connectors for cables of max. 1.5
mm2,
min. 0.5 mm2 section
Display: 2½ digits
Indicators LED: Compressor, Fan, Defrost heater, IR
activated, ALARM, Neuron ID
Inputs: Compressor failure, Door contact, Switch 1,
Switch 2, oil in, oil out, Air in temp., Air out
temp., Defrost termination temp., Temp. # 6
Switch 24V AC / DC or 230V AC
Sensor: NTC ( 10K at 25°C )
Pressure Sensor: PT3-07 4- 20 mA
Outputs: Relays SPDT
Imax = 8A res (2A), VAC max = 250V
TRIAC
Imax = 4A, VAC max = 250V
Stepper motor
Imax = 0.7A, VDC = 24V
Environmental pollution non aggressive atmosphere
Protection class IP65 (frontal protection with gasket)
Insulation class II
Important: Keep controller and sensor lines separated from
mains cable with at least 3 cm.
SAFETY STANDARD
In order to comply the safety standard (CEI 107-70) see the following:
1) Connection cables should be suitable for 90°C operation;
2) Class II transformers 24 VAC double insulated must be used
3) Aluminum case must be connected to ground
DIMENSIONS
Housing Dimensions EC3-33x Controller
250 62
7
2
104
EC3
Housing Dimensions ECD-001 Display Unit
78
36
636.5
Cutout 71 x 29 mm

EC3-33x Coldroom Controller with EX5
User Manual EC3-33x
A.6.5.063E - Rev 4
8
Emerson Electric GmbH & Co - ALCO CONTROLS - Heerstr. 111 - D-71332 Waiblingen - Germany - Tel.: ..[phone] - Fax: [phone]
ELECTRICAL INSTALLATION
EC3-331 Wiring Diagram
230V 24V C 230V 24V C 230V 24V C 230V 24V C
Do14
Out In
L N N L
®
EC3 331 FTT10
PCN: 807 511
Coldroom Controller EXV STEP
Rev : 290100124
Neuron ID : 00A 020 469 502
Bi-polar Stepper
BN BL BK WH
Battery
Fail
24VAC
Fan
DI : 1 - 8 = 24V AC/DC or 230V AC, DI : 9 -12 = 24V AC/DC only
DO: 250V max. 8A 2A
Comp Heater Alarm Relay
Door
Comp. safety Di3 Di4
Do1
1 C 2
Do2
1 C 2
Do3
1 C 2
Do4
1 C 2
LON
AB
ECD 001
- +- +- +- +- +- +
Coil In n/a
Temp.6
Def. term
Air out
Air InCoil out Suct.
Press
Di3Di2Di1 Di4
+
+
24VAC
230 VAC 24 VAC EC3 Controller
Warning: Use class II category transformer for 24 VAC power supply. Do not ground either of the 24 VAC lines! Failure to do so can
result in internal power supply damage.
We recommend the use of separate transformers for 3rd party controllers, to avoid possible grounding problems in the power supply.

EC3-33x Coldroom Controller with EX5
User Manual EC3-33x
A.6.5.063E - Rev 4
9
Emerson Electric GmbH & Co - ALCO CONTROLS - Heerstr. 111 - D-71332 Waiblingen - Germany -Tel.: ..[phone] - Fax: [phone]
SENSOR POSITION
The pipe-sensors for measuring the coil inlet and outlet temperature must be fixed with metal clamps or temperature resistant plastic
straps and it is recommended to insulate with ARMAFLEX™. The use of standard electrical plastic straps is not recommended because
they cannot withstand the temperature changes and could become lose with time. This will then cause controller errors due to wrong
temperature measurements.
The recommended position of the pipe sensors is between 9 and 3 o’clock as shown on the picture.
The air sensors must be mounted on spacers in the middle of the air duct so that the air flow around.
The recommended positions in detail :
1. S1 Coil inlet sensor : Position at the first return bend.
2. S2 Coil outlet sensor : Position direct after the evaporator on the common suction line.
3. S3 Air return sensor : In the air duct, in the middle of the cabinet, as high as possible.
4. S4 Air discharge sensor : In the air duct, as high as possible, asymmetric closer to the expansion valve.
5. S5 Fin sensor: On the evaporator, asymmetric closer to the expansion valve.
Caution : For low temperature cases with fans off during defrost, the uses of the fin sensor for defrost termination is highly recommended.
The sensor cables can be extended if necessary. The connections must be protected against water and dust.
EX2
S1
S2
S5
S3
S4

EC3-33x Coldroom Controller with EX5
User Manual EC3-33x
A.6.5.063E - Rev 4
10
Emerson Electric GmbH & Co - ALCO CONTROLS - Heerstr. 111 - D-71332 Waiblingen - Germany -Tel.: ..[phone] - Fax: [phone]
LonWorks Interface
RS 485
Structure Bus
Termination 120 Ωat both ends
Medium Twisted pair, 2-wires plus ground
Connection 11, 12 Data – 13 ground
Nodes / Segment 32 Units
Cable length max. 1200 m depending on cable type
Transfer rate 39 kbits / s
FTT10
Structure free topology
Termination RC Network
Medium Twisted pair, 2-wires
Connection 11, 12 Data - 13 free
Nodes / Segment 64 Units
Cable length max. 2700 m depending on cable type and network structure
Transfer rate 78 kbits / s
Recommended cable types
Cable type ∅/ AWG R Ω/ km C nF / km V % of c max. length in m
Belden 85102 1,3 mm / 16 28 56 62 2700
Belden 8471 1,3 mm / 16 28 72 55 2700
Level IV 22 AWG 0,65 / 22 106 49 67 1400
JY ( ST) 2x2x0,8 0,8 / 20,4 73 98 41 900
TIA 568A CAT 5 0,51 / 24 168 46 58 900
For more details see the Echelon LonMark documentation