8
The ERC 102 is a state-of-the art, IP65 (front)-rated
refrigeration controller for use in both Glass Door
Merchandising and Commercial Fridges and Freezer
applications.
With four inputs and four outputs, powerful
algorithms and input from multiple sensors, the ERC
102 delivers both energy-saving routines and
compressor, light, fan and defrost control.
Together with the Danfoss docking station,
programming of pre-prepared parameter sets can
be achieved in just five seconds. There are over 200
parameters (see Chapter 7) including innovative
features such as night mode detection,
store opening detection, door open alarm control
and display dimming for restaurants.
The ERC 102 can also be programmed via USB using
the Danfoss KoolProg software, allowing the most
suitable parameter findings to be found quickly
during the application development process.
It is also possible to operate and program the
controller using the control buttons (only when
actually installed in a refrigerator / freezer).
Overview of ERC 102 models:
Model: Digital outputs:
ERC 102A 1 relay
ERC 102C 3 relays
ERC 102D 4 relays
3. OVERVIEW OF THE PRODUCT
3.2 Connector inputs
Connect up to four Danfoss original sensors according
to your application needs.
There are three analogue inputs: S1, S2 and
S3 (
a
).
Supported input options:
· Ambient light - analogue data [luminens]
· Cabinet (air) temperature - analogue data [°C]
· Evaporator temperature - analogue data [°C]
· Condenser temperature - analogue data [°C]
· Digital input - binary data [on/off]
There is one digital input: diC (
b
) for PC
communication being used either with a door
sensor or with the USB Gateway.
NOTE: for detailed information refer to section 6.1.
The ambient light sensor can be used for determin-
ing shop open / closed times for economy mode
switching, for determining the brightness of the LED
display or both.
3.1 Control buttons
The ERC 102 has four buttons (circled in image)
on the front which can be programmed to perform
different functions. See Chapter 6 – Configuration of
inputs and outputs for detailed information.
ERC 102 Reference manual – 3 OVERVIEW OF THE PRODUCT
b
a
S1 S2 S3
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