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Danfoss EKC 202B Manual Download Page 17

EKC 

202 

/ 

302 

Manual RS8DZ702 © Danfoss 03-2012 

17

Data communication

If data communication is used, it is important that the in

-

stallation of the data communication cable is performed 

correctly.

See separate literature No. RC8AC..

Data communication

Do not connect anything other than a display on data communication.

The distance to the display must not exceed 200 m.

An address has to be set in o03 (0 can not be used).

The display will self find the controller address.

Extenal display on EKC 302

+

+

EKC 302

EKC 302

EKA 175 (LON RS485)

EKA 178B (MODBUS)

Only in standalone

External display plus data communication

EKC 302: 

Fixed MODBUS or 

LON-RS485/MODBUS via insert card. 

See also below when using external 

display

EKC 202: 

MODBUS or LON-RS485 via insert cards.

Summary of Contents for EKC 202B

Page 1: ...Controller for temperature control EKC 202A B C and EKC 302A B Manual...

Page 2: ...t the application determines which Refrigeration compressor or solenoid valve Defrost Fan Alarm Light The different applications are described on next page Advantages Integrated refrigeration technica...

Page 3: ...of compressor solenoid valve Defrost sensor Electrical defrost gas defrost Relay output 3 is used for control of fan EKC 202C Controller with four relay outputs two temperature sensors and digital in...

Page 4: ...eration Case cleaning Change to another temperature reference Inject on off Case cleaning function This function makes it easy to steer the refrigeration appliance through a cleaning phase Via three p...

Page 5: ...the new value by once more pushing the middle button Display The values will be shown with three digits and with a setting you can determine whether the temperature are to be shown in C or in F Operat...

Page 6: ...lay for fan start after defrost d07 0 min 60 min 0 min Fan start temperature d08 15 C 0 C 5 C Fan cutin during defrost 0 Stopped 1 Running 2 Running during pump down and defrost d09 0 2 1 Defrost sens...

Page 7: ...on relay for fans Can be controlled manually but only when r12 1 u59 Status on relay for defrost Can be controlled manually but only when r12 1 u60 Temperature measured with Sair sensor u69 Status on...

Page 8: ...s temperature showing If the temperature at the products and the temperature received by the controller are not identi cal an offset adjustment of the shown display temperature can be carried out r04...

Page 9: ...nput will result in alarm when the time delay is passed The function is defined in o02 A27 AI Delay DI High alarm limit for condenser temperature If the S5 sensor is used for monitoring the condenser...

Page 10: ...me between defrosts If a defrost start via data communication does not take place the interval time will be used as max time between defrosts When there is defrost with clock function or data communic...

Page 11: ...ct whether the fan is to be stopped when the compressor is cut out F01 Fan stop CO Yes Fan stopped Delay of fan stop when compressor is cut out If you have chosen to stop the fan when the compressor i...

Page 12: ...ooting with the other controllers in ADAP KOOL refrigeration controls The address is set between 1 and 240 gateway determined o03 The address is sent to the system manager when the menu o04 is set to...

Page 13: ...tion o66 Save as factory setting With this setting you save the controller s actual settings as a new basic setting the earlier fac tory settings are overwritten o67 Other application for S5 sensor Ma...

Page 14: ...Case cleaning A61 Condenser alarm Cond alarm E1 Faults in the controller EKC error E6 Fault in real time clock Check the battery reset the clock E27 Sensor error on S5 S5 error E29 Sensor error on Sa...

Page 15: ...em Manager Function via data communication Functions to be used in the gateway s override function Used parameter in EKC 202 and EKC 302 Start of defrosting Defrost control Time schedule Def start Coo...

Page 16: ...ral connections are Refrigeration The contact will cut in when the controller demands refrigeration Defrost Fan Alarm The relay is cut out during normal operation and cuts in in alarm situations and w...

Page 17: ...r than a display on data communication The distance to the display must not exceed 200 m An address has to be set in o03 0 can not be used The display will self find the controller address Extenal dis...

Page 18: ...odule that will protect the clock in case of lengthy power failure 0848577 EKA 182A Copy key EKC EKC 084B8567 Temperature sensors please refer to lit no RK0YG Type Function Supply voltage Code no EKC...

Page 19: ...ed MODBUS Can be expanded with LON or MODBUS via insert card Environments 0 to 55 C During operations 40 to 70 C During transport 20 80 Rh not condensed No shock influence vibrations Density EKC 202 I...

Page 20: ...serves the right to alter its products without notice This also applies to products already on order provided that such alternations can be made without subsequential changes being necessary in specif...

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