Danfoss ERC 112D - User Manual

DKRCE.PI.RL0.A2.02
520H10340
DKRCE.PI.RL0.A2.02 / 520H10340© Danfoss | DCS (az) | 2015.09 Installation guide | ERC 112
36.5 mm
28 mm
78.25 mm
82.25 mm
78.25 mm
71 mm
28.5 mm
71 mm
30 mm
1
S1 S2 S3 S4 di
DO1
Outputs
Inputs
ERC 112D
100 – 240 V AC ± 10% 50/60 Hz 0T55
LNDO2 DO3 DO4
2 3 4 5 6 1
S1 S2 S3 S4 di
DO1
Outputs
Inputs
ERC 112C
100 – 240 V AC ± 10% 50/60 Hz 0T55
LNDO2 DO3
2 3 4 5
23
14
SC
SC
^
^
^
^
ECO
Installation Guide
ERC 112
Bottle Cooler Controller
Power Supply 100 – 240 V AC Switch mode power supply. Average 0.7 W
Input
5 inputs: 4 analogue (digital), 1 digital; user specific assignment
• Air / Evaporator / Condenser • Door sensor: all types, user specific
• Light sensor: Danfoss ECO light
sensor
• Motion sensor
Output
UL60730 EN60730
"DO1"
(Compressor relay)
120 V AC: 16 A resistive /
FLA 16/LRA 72
240 V AC: 10 A resistive /
FLA 10 / LRA 60
16(16) A
"DO4"
8 A resistive, FLA 2 / LRA
12, TV-1
8 A resistive, 2(2) A
"DO5" FLA 2 / LRA 12, TV-1 8 A resistive, 2(2) A
"DO6" FLA 2 / LRA 12, TV-1 8 A resistive, 2(2) A
Max 10 A total "DO4-6"
Probes
• Danfoss NTC sensors and Danfoss ECO accessories
• Danfoss PT1000 ohm / 0°C
Connectors
• Modular connector system for OEM customers, with optional output screw
terminal adapter
• Input connector type: Rast2 5 Edge connectors
• output connector type: RAST 5 standard
Programming Programming with Danfoss ERC docking station, integrated system
Assembly
3 types for all controls:
front mounting; brackets; fully integrated solution
(requires OEM specific design of mounting hole)
Display LED display, 3 digit, decimal point and multi functionality icons; °C / °F scale
Keypad 4 buttons (integrated IP65 design), 2 left, 2 right; user programmable
Operating
Conditions
0 °C – 55 °C, 93% rH
Storage
Conditions
-40 °C – 85 °C, 93% rH
Range of
Measurement
-40 °C – 85 °C
Protection
Front: IP65
Rear: water and dust protection corresponds to IP31,
accessibility of connectors limit rear part rating to IP00
Environmental Pollution degree II, non-condensing
Resistance to
heat & re
Category D (UL94-V0)
EMC category Category I
Operating Cycles Compressor relay: more than 175.000 at full load (16 A (16 A))
Approvals
• R290 / R600a end-use applications
employing in accordance to
EN / IEC 60335-2-24, annex CC and
EN / IEC 60335-2-89, annex BB
• Glow wire according to
EN / IEC 60335-1 / IEC / EN 60730
• UL60730
• NSF
• CQC
• GOST R 60730
• These approvals are only valid when
using the accessories approved
Technical specication
Menu structure Operation Changing the setpoint:
Two kinds of left buttons - see pictures 1. and 3.
Example of changing a parameter Turning ON/OFF the ECO function
Password protection
Acknowledging alarm
Activating manual defrost
Dimensions
Wiring diagram
Conguration of outputs
Conguration of inputsConguration of inputs
ERC front and button functionality
Functional description of used sensors
Front mounting
(Lock with frame)
Rear mounting
(Lock with clips)
Relay
outputs
Compress. Defrost Fan Light Alarm
Heating
application
DO1 (o1C)
DO2 (o2C)
DO3 (o3C)
DO4 (o4C)
Input/
sensor
Cabinet
sensor
Evapor.
sensor
Conden.
sensor
Door
sensor
Light
sensor
Movem.
sensor
Comm.
S1
S2
S3
S4
di
Control temperature sensor
The control sensor must always be connected and is used for controlling the cut-in and cut-out of
the compressor according to the set-point. The sensor is also used for the displayed temperature.
Most common placement is in the return air to the evaporator.
Evaporator sensor
The evaporator sensor is only used for de-icing of the evaporator and has no control purpose.
Place the sensor where the ice melts last.
Please be aware of that sharp fins can damage the cable.
Condenser temperature sensor
The condenser sensor is used to protect the compressor against high pressure when the
condenser is blocked or the condenser fan fails.
Place the sensor at the liquid side of the condenser. Use a metal bracket or metal tape to ensure
good thermal conductivity. Be sure that the cable does not pass hot spots at the compressor or
condenser that exceeds 80 °C.
Congurable functionality
Button
Basic
function
Not
operating
ON/OFF
Increase
setpoint
Decrease
setpoint
Toggle
defrost
Toggle
light
1 press OK
1 pess and hold
2 press BACK
2 pess and hold
3 press UP
3 pess and hold
4 press DOWN
4 pess and hold
Congurable functionality
Button
Toggle
ECO
Toggle
pulldown
Increase
display
intensity
Decrease
display
intensity
Toggle °C
or F
Info menu
1 press
1 pess and hold
2 press
2 pess and hold
3 press
3 pess and hold
4 press
4 pess and hold
Press and
hold 5 sec to
access the
menu
1. Parameter group
1. Parameter name
Lower left button
Lower left button
Scroll through parameters
Scroll through menu group
The display shows the current temperature
Current temperature
1.
1.
2.
2.
3.
3.
Flashing temperature setpoint
Press: UP/DOWN to adjust setup
After 30 seconds, the display automatically
reverts to showing the current temperature
Defrost symbol is shown in defrost mode
Defrost symbol will disappear after the defrost is
finished.
(The dEF text during the defrost is displayed or
not based on the cabinet manufacturer settings)
Press briefly
to start or
stop defrost
1.
2.
3.
4.
5.
6.
7.
8.
9.
Press and hold 5 sec to access
the menu
Press: UP / DOWN to scroll
through the menu
Press: UP / DOWN to find the
desired parameter
Press: UP / DOWN to enter the
desired value
To select: press the lower
left button (OK)
To confirm: press the lower
left button (OK)
To accept: press the lower left
button (OK) and return to
parameter name
To exit without accept:
press the upper left button (BACK)
To return to parameter group:
press upper left button (BACK)
To return to menu:
press upper left button (BACK)
After 30 seconds of inactivity,
the display automatically
reverts to showing the current
temperature
Scroll through parameters group
Scroll through group "dEF" parameters
1.
2.
The green ECO symbol is list
when in ECO mode
Press briefly to enter
ECO mode
Password protection on three levels:
LEVEL 1: shop (daily use by shop personnel)
LEVEL 2: ser (service technician)
LEVEL 3: OEM (OEM programming
Press and hold 5
sec to access the
menu
1.
2.
The alarm code flashing alternately
with the temperature and the
alarm symbol is displayed
After the acknowledge the
temperature is displayed and the
alarm symbol remains shown
Press any button to acknowlege

Summary

Technical Specifications and Dimensions

Controller Electrical and Connection Specs

Details on power supply, inputs, outputs, probes, and connectors.

Setup, Interface, and Environment

Information on programming, assembly, display, keypad, and operating conditions.

Dimensions and Approvals

Physical measurements and regulatory certifications for the controller.

Wiring Diagram and Output Configuration

Wiring Diagram Overview

Illustrates the electrical connections for ERC 112D and ERC 112C models.

Output Configuration Options

Details on configuring the controller's output relays for various functions.

Controller Functionality and Operation

Front Panel and Button Functions

Explains the ERC front panel layout and button actions for navigation and control.

Setpoint Adjustment

Instructions on how to change the temperature setpoint using the controller buttons.

Manual Defrost Activation

Guide on initiating or stopping the manual defrost cycle.

Parameter and ECO Function Adjustment

Steps for changing parameters and enabling/disabling ECO mode.

Input Configuration and Alarm Handling

Input Configuration Settings

Details on assigning functions to the controller's inputs.

Password Protection Levels

Information on setting up and accessing password protection for different user levels.

Alarm Acknowledgment Procedure

Instructions on how to acknowledge and clear active alarms.

Overview

1. Function Description
2. Usage Features
3. Maintenance Features

The Danfoss ERC 112 Bottle Cooler Controller is a sophisticated device designed for precise temperature management in bottle coolers. It offers a comprehensive suite of functionalities for both basic operation and advanced configuration, ensuring optimal performance and energy efficiency.

Function Description

The core function of the ERC 112 is to regulate the temperature within a bottle cooler. It achieves this through a control sensor, which continuously monitors the temperature and dictates the compressor's cut-in and cut-out cycles based on a user-defined setpoint. This sensor is typically positioned to measure the return air to the evaporator, providing an accurate representation of the cabinet's internal temperature.

In addition to the control sensor, the ERC 112 can integrate an evaporator sensor, primarily for de-icing purposes. This sensor is strategically placed where ice is expected to melt last, ensuring efficient defrost cycles without impacting the overall cooling performance. The controller also supports a condenser temperature sensor, a crucial safety feature that protects the compressor from high-pressure damage in scenarios like a blocked condenser or a failed condenser fan. This sensor is typically located on the liquid side of the condenser, with proper thermal contact ensured through a metal bracket or tape.

The device features multiple configurable outputs, including relays for the compressor, defrost heater, fan, light, and alarm. These outputs can be assigned various functions, allowing for flexible control over different components of the bottle cooler system. For instance, the compressor relay can be configured for basic ON/OFF operation, while other relays can manage defrost cycles, fan operation, lighting, or trigger alarms.

The ERC 112 also incorporates several input options. Beyond the temperature sensors, it can connect to a door sensor, a light sensor (Danfoss ECO light), and a motion sensor. These inputs enable advanced functionalities such as automatic light control based on ambient light conditions or door status, and potentially energy-saving modes triggered by the absence of motion.

Usage Features

The ERC 112 is designed for user-friendly interaction through its front panel, which includes a 3-digit LED display and four integrated buttons. The display shows the current temperature and various icons indicating the device's status, such as defrost mode or ECO mode. The buttons allow users to navigate the menu, adjust parameters, and activate specific functions.

Changing the setpoint is a straightforward process. Users can press a designated button to display the current temperature, then use UP/DOWN buttons to adjust the desired setpoint. After a brief period of inactivity, the display automatically reverts to showing the current temperature.

Manual defrost can be initiated by a brief press of a specific button. During defrost, a defrost symbol is displayed, indicating the active defrost cycle. The symbol disappears once the defrost is complete. The visibility of the "dEF" text during defrost can be configured based on the cabinet manufacturer's settings.

The controller offers an ECO function, which can be activated by a brief press of a button. When in ECO mode, a green ECO symbol is displayed, indicating that the device is operating in an energy-saving mode.

For advanced configuration, the ERC 112 provides a comprehensive menu structure accessible by pressing and holding a specific button for 5 seconds. This menu is organized into parameter groups, allowing users to scroll through various settings. To select a parameter, users press the lower left button (OK), then use UP/DOWN buttons to adjust the value. The new value is confirmed by pressing the OK button again. The menu also allows users to navigate back to previous levels or exit the menu entirely.

The device includes password protection for its configuration settings, offering three levels of access: "shop" for daily use by shop personnel, "ser" for service technicians, and "OEM" for OEM programming. This ensures that critical settings are not inadvertently altered.

In case of an alarm, the alarm code flashes alternately with the temperature and the alarm symbol. Users can acknowledge the alarm by pressing any button, after which the temperature is displayed, and the alarm symbol remains shown.

Maintenance Features

The ERC 112 is built for durability and reliability. Its front panel has an IP65 rating, providing protection against dust and water ingress, making it suitable for environments where splashes or dust are common. The rear part of the device has an IP31 rating, with the accessibility of connectors limiting the rating to IP00.

The device is designed for easy assembly, offering three types of mounting: front mounting with brackets, and a fully integrated solution that requires an OEM-specific design of the mounting hole. This flexibility simplifies installation and integration into various bottle cooler designs.

The compressor relay is rated for over 175,000 cycles at full load, indicating a long operational lifespan. The device is also compliant with various international safety and quality standards, including UL60730, NSF, CQC, and GOST R 60730, ensuring its safety and performance.

The modular connector system, with optional output screw terminal adapters, facilitates easy connection and disconnection of components, simplifying maintenance and troubleshooting. The input connector type is Rast2 5 Edge connectors, and the output connector type is RAST 5 standard.

Programming can be done using the Danfoss ERC docking station, which is an integrated system, allowing for efficient setup and configuration. This streamlined programming process contributes to easier maintenance and updates.

Danfoss ERC 112D Specifications