Danfoss Erc 112 User manual

ERC 112 refrigeration controller

Bottle cooler controller

ERC 112

This reference manual is intended to be used primarily by OEMs for the purposes

of programming ERC 112. It may also be useful for technicians. It is not intended

as a user guide for end users.

www.danfoss.com/erc

User manual ERC 112 refrigeration controller

Application

Advantages

Approvals

Password protected

Temperature control for refrigeration appliances.

Front panel mounting.

The latest generation CPU, plenty of memory

and high-end electronic components allow for

a uniquely versatile software. Three separate

password-protected user levels can be used to

control more than 300 diﬀerent parameters to ﬁt

all individual requirements.

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.

The access level can be set separately for each

parameter using "Software tool".

There are three levels of access 1, 2, 3:

- level 1 is for shop access;

- level 2 for technicians;

- level 3 for OEMs.

The access levels cannot be set using the buttons.

Passwords for the diﬀerent levels can however be

altered for the level of access you have,

e.g. a level 2 user can change the password for

level 1 and level 2 but not level 3.

Introduction

DKRCC.ES.RL0.D5.02 / 520H8676 Produced by Danfoss A/S (EL-MSSM/AZ) | April 2014

User manual ERC 112 refrigeration controller

Typical application

S3, S4 are optional

Glass Door Merchandiser

No-frost freezer/sub-zero cooler

S2, S3, S4 are optional

Glass Door Merchandiser

S3, S4 are optional

Gastro

No-frost freezer

S2, S3, S4 are optional

Gastro Cooler

Produced by Danfoss A/S (EL-MSSM/AZ) | April 2014

DKRCC.ES.RL0.D5.02 / 520H8676

User manual ERC 112 refrigeration controller

Display

Buttons

The ERC 112 is an electronic refrigeration

controller with an LED display especially

developed for bottle coolers and commercial

fridges and freezers. It is particularly suited for

OEM customers where time, easy and reliable

installation and high quality need to go hand in

hand with ﬂexibility.

The display can be ordered in red or blue.

The controller is available with the upper left

button as "ECO" or "Defrost".

The lower left-button can be supplied with

"Light", "Stand by" or "Super chill".

Clips Are used to secure the controller in place in the

case of rear mounting. They are not used with

front mounting.

There are two identical clips, one placed on

either side of the controller.

Front frame

Controller without front frame Front frame with/without name/logo

At front mounting place the wired controller in

the hole. Then press the front frame in position.

The plastic lugs locks hereby the controller.

"S1"

Temperature sensor for

cabinet

"S2"

Temperature sensor for

defrost

"S3"

Temperature sensor for

condenser, light sensor or

Motion sensor

"S4"

Temperature sensor

Pt 1000 ohm/0°C

or door signal

"di"

Door signal or

Motion sensor

Defrost sensor

The function of an input can be reprogrammed,

but the connector can not be moved.

The connector is designed to only one location.

"S1" to "S1", "S2" to "S2", etc.

Control temperature sensor

There are diﬀerent lengths.

Defrost temperature sensor

Should be mounted on the evaporator.

Condenser temperature sensor

Should be mounted on the condenser.

Light sensor

Is optional and is used to measure the level of

ambient light around the cabinet so that night

and day "Economy", "Normal" modes of operation

can automatically be set, as well as the brightness

of the display.

Motion sensor

Should be mounted on the cabinet front.

Door sensor connector cable

Is optional and is a connector and cable with

spade terminals compatible with door contacts

used in refrigeration applications.

Product overview

DKRCC.ES.RL0.D5.02 / 520H8676 Produced by Danfoss A/S (EL-MSSM/AZ) | April 2014

User manual ERC 112 refrigeration controller

Software for PC

USB gateway

USB programming key

Docking station

Software tool

Software from Danfoss for programming the

ERC 112 via a USB gateway and a PC rather than

with the front panel buttons.

USB gateway

The USB Gateway is a laboratory tool, oﬀering

fast and easy programming of any ERC

controller connected directly to the PC.

"Software tool" installation kit is provided for the

PC. The gateway is standard inventory for OEM

labs.

Programming an individual unit in a

laboratory

The USB key requires "Software tool" running on

a PC. It enables parameters to be set in real time

and an array of status information to be read

(bidirectional connection).

Once the desired settings have been

determined, a speciﬁc parameter ﬁle is saved to

the USB key for later mass programming through

the docking station.

Mass programming on an assembly line:

The docking station is used for high volume

programming of ERC controllers, for example on

an assembly line. The docking station is a

write-only device.

The USB key, is to be inserted into the docking

station. The settings are then loaded into each

successive controller in a matter of seconds.

"Software tool" is not required for mass

programming.

Quick programming

Produced by Danfoss A/S (EL-MSSM/AZ) | April 2014

DKRCC.ES.RL0.D5.02 / 520H8676

User manual ERC 112 refrigeration controller

Dimensions

Power Supply 100 - 240 V a.c. 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 a.c.: 16 A resistive/FLA16/LRA72

240 V a.c.: 10 A resistive/FLA10/LRA60 16(16) A

"DO4" 8 A resistive, FLA2/LRA12, TV-1 8 A resistive, 2(2) A

"DO5" FLA2/LRA12, TV-1 8 A resistive, 2(2) A

"DO6" FLA2/LRA12, TV-1 8 A resistive, 2(2) A

Max 10 A total "DO4-6"

Probes Danfoss NTC sensors and Danfoss ECO accessories

Danfoss Pt 1000 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 to 55°C, 93% rH

Storage Conditions -40°C to 85°C, 93% rH

Range of Measurement -40°C to 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 & fire Category D (UL94-V0)

EMC category Category I

Operating Cycles Compressor relay: more than 175,000 at full load (16A (16A))

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

30 mm

71 mm

28,5 mm

71 mm

78,25 mm

36,5 mm

78,25 mm

82,25 mm

28 mm

Rear mounting

(Lock with clips)

Front mounting

(Lock with frame)

Technical specs

IMPORTANT NOTE

The inputs are not galvanic separated and are connected directly to the mains supply!

For that reason, door-switches, sensors as well as the cables must fulﬁl the reinforced insulation requirements.

DKRCC.ES.RL0.D5.02 / 520H8676 Produced by Danfoss A/S (EL-MSSM/AZ) | April 2014

User manual ERC 112 refrigeration controller

Connections ERC 112C (3 relays)

Light/ Motion

Cabinet

temp. sensor

Evaporator

temp. sensor

(Pt 1000 ohm

)

Door

ERC 112D (4 relays)

Light/ Motion

(Pt 1000 ohm)

Door

Cabinet

temp. sensor

Evaporator

temp. sensor

Condenser

(Pt 1000 ohm)

Door/ Motion

Cabinet

temp. sensor

Evaporator

temp. sensor

Condenser

(Pt 1000 ohm)

Door/ Motion

Cabinet

temp. sensor

Evaporator

temp. sensor

Produced by Danfoss A/S (EL-MSSM/AZ) | April 2014

DKRCC.ES.RL0.D5.02 / 520H8676

User manual ERC 112 refrigeration controller

Type Code no. I-Pack

-100 — 200 °C, Pt 1000

S4, 1000 mm, 3-pole 080G3350

S4, 2000 mm, 3-pole 080G3351

S4, 3000 mm, 3-pole 080G3352

Light-sensors

S3, 1000 mm, 3-pole 080G3311

S3, 2000 mm, 3-pole 080G3313

S3, 3000 mm, 3-pole 080G3315

Magnetic door sensor

di/S4, 1000 mm, 3-pole 080G3320

di/S4, 2000 mm, 3-pole 080G3322

di/S4, 3000 mm, 3-pole 080G3324

Cable door sensor

di/S4, 1000 mm, 3-pole 080G3340

di/S4, 2000 mm, 3-pole 080G3341

di/S4, 3000 mm, 3-pole 080G3342

di/S4, 4000 mm, 3-pole 080G3343

Motion sensor

S3/di, 1000 mm, 3-pole 080G3390

S3/di, 2000 mm, 3-pole 080G3391

S3/di, 3000 mm, 3-pole 080G3392

S3/di, 4000 mm, 3-pole 080G3393

Clips

Black (2 needed per controller) 080G3308

Programming

OEM Docking station, production

line

080G9701

Gateway incl USB Cable, R&D 080G9711

Programming key EKA183A 080G9740

Power plug *

3-pole with screw 080G3364

6-pole with screw 080G3365

* Available optional plugs with screw connections are

limited to 10 A

Sx (di)= connector position.

Inputs are conﬁgurable.

Type Code no. I-Pack

GDM-front

ERC 112C, Red LED, without buzzer 080G3202

ERC 112D, Red LED, without buzzer 080G3203

ERC 112C, Blue LED, without buzzer 080G3206

ERC 112D, Blue LED, without buzzer 080G3207

CFF-front

ERC 112C, Red LED, with buzzer 080G3212

ERC 112D, Red LED, with buzzer 080G3213

ERC 112C, Blue LED, with buzzer 080G3216

ERC 112D, Blue LED, with buzzer 080G3217

Temperature sensors

-40 — 85 °C, PVC Standard, NTC 5 K

S1, 470 mm, 3-pole 077F8751

S1, 1000 mm, 3-pole 077F8757

S1, 1500 mm, 3-pole 077F8761

S1, 2000 mm, 3-pole 077F8765

S1, 2200 mm, 3-pole 077F8767

S1, 3000 mm, 3-pole 077F8769

S1, 3500 mm, 3-pole 077F8723

S1, 6000 mm, 3-pole 080G2019

-40 — 120 °C, TPE precision NTC 5 K, Santroprene

S1, 1500 mm, 3-pole 077F8726

S1, 2000 mm, 3-pole 077F8727

S1, 3000 mm, 3-pole 077F8729

-20 — 175 °C, Silicone rubber cable, NTC 100 K

S1/S3, 1000 mm, 3-pole 080G2041

S1/S3, 2000 mm, 3-pole 080G2043

S1/S3, 3000 mm, 3-pole 080G2045

-40 — 85 °C, PVC Standard, NTC 5 K

S2, 1000 mm, 2-pole 077F8786

S2, 1500 mm, 2-pole 077F8790

S2, 2000 mm, 2-pole 077F8794

S2, 3000 mm, 2-pole 077F8798

S2, 6000 mm, 2-pole 080G2029

S3, 1000 mm, 3-pole 077F8756

S3, 1500 mm, 3-pole 077F8760

S3, 2200 mm, 3-pole 077F8766

S3, 3000 mm, 3-pole 077F8768

S3, 6000 mm, 3-pole 080G2039

Code numbers

Note: For more information about temperature sensor

types and connectors, please refer to Danfoss’technical

brochure "NTC type temperature sensors for ETC & ERC

controllers".

DKRCC.ES.RL0.D5.02 / 520H8676 Produced by Danfoss A/S (EL-MSSM/AZ) | April 2014

User manual ERC 112 refrigeration controller

Software tool/Gateway

Docking station

Examples

Manual operation with

buttons (Direct Access)

The controller can be controlled in three ways:

Using "Software tool", the Danfoss Docking

Station or manually by means of the buttons on

the front panel.

"Software tool" is licenced Danfoss software

oﬀering easy parameter set up via a USB gateway.

This software is supplied separately;

for technical literature and further information,

please contact your local Danfoss representative.

Docking station is supplied separately.

For further information, please contact your local

Danfoss representative.

Changing the Desired Temperature Set point:

1. The display shows the current temperature.

2. Press "up/down" to access set point.

3. Press "up/down" to adjust set point.

After 30 seconds, the display automatically

reverts to showing the current temperature

Turning ON/OFF the ECO Function:

1. Press "ECO".

The green "ECO" symbol is lit when in "ECO"

mode.

Turn ON/Oﬀ the Light:

1. Press the "Light" button.

Acknowledging Alarms:

1. Display Flashing the alarm message.

2. Press any button to acknowlege.

Password protection:

1. Press "up/down" and hold 5 seconds to access

the menu.

2. The display shows "PAS".

3. Press "OK".

4. Press "Up/Down" to the code.

5. Press "OK".

Password protection on three levels:

1. Level 1: "shop" (daily use by shop personnel).

2. Level 2: "ser" (service technician).

3. Level 3: "OEM" (OEM programming).

1 Press: variable direct

function, e.g. “ECO”/”Night mode”

Sub function: back

1 Press: variable direct

function, e.g. light

Sub function: “OK”

1 Press: temperature set point

Sub function: “up”

1 Press: temperature set point

Sub function: “down”

Changing a Parameter

Some parameters may be hidden to you.

When scrolling through menus, the parameters

available will have been pre-determined using

"Software tool".

Your access level will determine which

parameters you can view and edit:

1. Press "up/down" and hold 5 seconds to access

the menu.

2. First parameter group is shown "tHE".

3. Press "up/down" to ﬁnd the desired group.

4. Press "OK".

5. First parameter is shown.

6. Press "up/down" to ﬁnd the desired

parameter.

7. Press "OK".

8. Press "up/down" to ﬁnd the desired setting.

9. Press "OK".

After 30 seconds, the display automatically

reverts to showing the current temperature.

Or Press 2 x "Back".

NOTE:

Incorrect parameter settings can lead

to inadequate cooling, excessive energy

consumption, unnecessary alarms and in the

case of temperature-sensitive food storage,

breaches in food hygiene principles and

regulations.

Only a trained operator should make changes to

parameters.

Operation

Produced by Danfoss A/S (EL-MSSM/AZ) | April 2014

DKRCC.ES.RL0.D5.02 / 520H8676

User manual ERC 112 refrigeration controller

ERC menu code Description

"tHE Thermostat settings

"SEt"

Min. -100.0°C

Max. 200.0°C

Default 2.0°C

Set point

This parameter deﬁnes the desired temperature (set point).

In standard operation the set point is changed by simply pressing the

"temperature up/down" buttons on ERC 112; for laboratory and

assembly line you may opt for software controlled set point adjustment

(speed improvement)

"SPr"

Min. 0.0

Max. 1.0

Default 0.5

Current set point adjustment value diF * SPr

The default value is set to 0.5 and the parameter is hidden by default.

"Spr" deﬁnes the position of the set point in relation to cut-in and cut-out.

"Spr=0,5" sets the set point mid between cut-in and cut-out.

"Spr=0" sets the set point at the cutout. "Spr=1" sets the set point at cut-in.

"diF"

Min. 0.0 K

Max. 20.0 K

Default 2.0 K

Thermostat diﬀerential

This deﬁnes the diﬀerence between the cut-out and the cut-in.

The desired temperature is determined by "SPr" and "diF".

"HSE"

Min. -100.0°C

Max. 200.0°C

Default 50.0°C

Upper limit of thermostat set point

Deﬁne the temperature range limit of the controller.

Once set, the desired temperatue (set point) can not go above "HSE" or

below "LSE".

"LSE"

Min. -100.0°C

Max. 200°C

Default -35.0°C

Lower limit of thermostat set point

Deﬁne the temperature range limit of the controller.

Once set, the desired temperatue (set point) can not go below "LSE".

"iCi"

Min. no

Max. yes

Default no

Initial cut in

Comp relay action when Tair is between cut-in and cut-out at power-up:

"yES": cut in the compressor.

"no": cut out the compressor.

FAn Fan settings

"FCt"

Default FAo

Fan control method

"FAo": fan always on

"SEt": fan follow compressor by manually settings

"Aut": automatical fan control

"Fod"

Min. 0 s

Max. 240 s

Default 0 s

Fan ON Delay/Fod

Fod deﬁnes the fan delay (in seconds) after a compressor cut-in.

Fan Stop Delay/FSd

"FSd" deﬁnes the fan delay after a compressor cut-out.

If both "Fod" and "FSd" are set to zero then the fan runs whenever the

compressor runs.

"FSd"

Min. 0 s

Max. 240 s

Default 0 s

"FoC"

Min. 0 s

Max. 960 s

Default 0 s

Fan ON Cycle/FoC

Fan Stop Cycle/FSC

When the compressor is OFF, and "FoC" or "FSC" are not zero, the fan

runs in cycles according to "FoC" and "FSC".

Example: "FoC=120" [sec] and "FSC=120" [sec] means that the fan runs

for half the time when the compressor is OFF. When the compressor is

on, the fan is always ON (according to "FAo" and "Fod").

"FSC"

Min. 0 s

Max. 960 s

Default 0 s

"FSt"

Min. 0 s

Max. 960 s

Default 10 s

Fan Minimum Stop time

Minimum stop time for fan protection.

"FdC"

Min. -10.0 K

Max. 10.0 K

Default 0.0 K

Fan Δt cut in

Delta T for fan to cut in which the temperature oﬀset comparing with

thermostat cut in temperature.

Menu/functions

DKRCC.ES.RL0.D5.02 / 520H8676 Produced by Danfoss A/S (EL-MSSM/AZ) | April 2014

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