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
