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© Danfoss | DCS (JL) | 01.2022

BASIC CONTROLLER OPERATION

For a Rack Overview

1. Press Home-icon at upper-left corner

2. Select “Equipment” 

3. Select “Refrigeration” 

a. Select the down-arrow of the  

rack to view 

b. Select the down-arrow of the  

suction group

to view, or select the right-arrow  

for more info 

c. Select the right-arrow of the 

condenser you to view 

Other Rack info can be accessed including:

a. Condenser: Indicates number of fans 

and relevant temperature readings. 

b. Compressors: Ability to manual 

compressors ON/OFF through 

Suction>Service tab 

c. Evaporators: Select the Home icon. Go 

to Equipment->Refrigeration and select 

the down- arrow of the suction group 

to view. If Refrigeration circuit is red, 

there is an alarm. If yellow, it is in defrost. 

Select the right-arrow of the circuit for 

more info (status, settings, service)

 Viewing Compressors 

1. Press Home-icon at upper-left corner 

2. Select “Equipment” 

3. Select “Refrigeration” and select the 

down-arrow of the rack you want to view 

4. Select the right-arrow, under the alarm 

column, of the suction group you want 

to view 

5. Go to the “Maintenance” tab to view 

compressor run times since last clear 

Viewing a Circuit 

1. Press Home-icon at upper-left corner 

2. Select “Equipment” 

3. Select “Refrigeration” and select the 

down-arrow of the rack you want to view 

4. Select the down-arrow of the suction 

group to view 

5. Select the right-arrow, under the alarm 

column, of the circuit you want to view. 

Current circuit readings and set points 

are displayed on the Status. Scroll down 

to view run times and cycles. Relays may 

be overridden through the service tab 

directly or by putting a function into 

Manual ON such as defrost.

Viewing Condensers

1. Press Home-icon at upper-left corner of 

the screen

2. Select “Equipment” 

3. Select “Refrigeration” and select the 

down-arrow of the rack to view

4. Select the right-arrow of the condenser 

you want to view

Performing a Manual Defrost (IO Circuit) 

1. Press Home-icon at upper-left corner 

2. Select “Equipment” 

3. Select “Refrigeration” and select the 

down-arrow of the rack to view

4. Select the down-arrow of the suction 

group to view 

5. Select the right-arrow, under the alarm 

column, of the circuit to view 

6. Go to “Service” tab 

7. Under “Manual Defrost”, change defrost 

operation from “Auto” to “Manual On” 

Performing a Manual Defrost  

(Case Controller) 

1. Press Home-icon at upper-left corner 

2. Select “Equipment” 

3. Select “Refrigeration” and select the 

down-arrow of the rack to view 

4. Select the down-arrow of the suction 

group to view 

5. Select the right-arrow, under the alarm 

column, of the circuit to view 

6. Go to “Manual Operation” tab 

7. Under “Defrost”, select “OK” next to 

“Press to turn on” 

Viewing Refrigeration Settings 

1. Press 9 dots-icon below the Home-icon, 

and select “Configuration” 

2. Go to “Control” tab 

3. Go to “Refrigeration” tab 

I/O Communications Checking Board 

Communications 

1. Press 9 dots-icon below the Home-icon, 

and select “Configuration” 

2. Go to “Network Nodes” tab 

3. “Node Overview” displays a list of all 

Configured/Scanned devices 

4. “Scan Status” displays more information 

about the devices 

5. Scan Status>IO boards allows you to 

interrogate communication modules 

including supply voltage 

6. Network Nodes>Config Status displays 

nodes as Online/Offline 

Rescan to Bring Offline Boards Online 

1. Press 9 dots-icon below the Home-icon, 

and select “Configuration” 

2. Go to “Network Nodes” tab 

3. Typically, channel LONWORKS is 

enabled. Enable MODBUS-RS485 if 

Modbus devices are used 

4. Select “OK” next to “Press for complete 

rescan” 

5. Wait for scan to complete. When 

complete, go to “Config Status” tab to 

check if all nodes are online

AUTHORIZATION Getting Authorized  

to Make Changes 

1. When “Configuration” is selected, you 

will be prompted to login 

2. Enter username and password

VIEWING HISTORY LOGS 

1. Press 9 dots-icon below Home-icon, and 

select “Graph” 

2. Press “Select” below “Statistics” tab 

3. Select the data types (i.e., relays, sensors, 

on/off inputs) and the data points to plot 

4. Select left arrow next to “Selected” 

5. Change the Time and Rate to view 

history as desired 

6. Choose between History (Graph), Trend 

(Graph), and Statistics to choose how 

data is displayed

Technical Support: 

Danfoss Inc., 11655 Crossroads Cir, Middle River, MD 21220  

Tel. 888-326-3677  /  www.danfoss.com/en-us

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