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.: ..49 (0) 7151 509 0 - Fax: 49 (0) 7151 509 200
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
Содержание EC3-33x
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