Danfoss AK-SM 850, AK-SM 880 Service guide

Service Guide

Programming a Box Door Refrigera­tion and Fan Restart (I/O Control)

AK-SM 850 / AK-SM 880

ADAP-KOOL® Refrigeration Control System

Service Guide | Programming a box door refrig. /Fan restart AK-SM 850 / AK-SM 880

Programming notes

- Assign the Box Door input to Misc On/Off Inputs

- Program a False Relay in Misc Relay Outputs to act as the door
restart timer

- Setup a Calculation to replace the door input, program it as the
Circuit Door Switch. An open door that exceeds the restart time
will override the door input function.

- I/O comm error (offline) alarms for calculations or Misc ROs
associated with dummy points will need to be Disabled in
Configuration / Alarms / Offline / AK-CM.

Screen shots:

Configuration / Control / Miscellaneous / On/Off Inputs:

Configuration / Control / Miscellaneous / Relay Outputs:

Assign the door input switch as the Control Input.

Program the restart time as the Pre Delay.

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© Danfoss | ADAP-KOOL® | 2018.08