Danfoss AK-PC 530 User Manual
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Danfoss AK-PC 530 User Manual

Capacity controller
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User Guide
Capacity controller
AK-PC 530
ADAP-KOOL® Refrigeration control systems

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Summary of Contents for Danfoss AK-PC 530

  • Page 1 User Guide Capacity controller AK-PC 530 ADAP-KOOL® Refrigeration control systems...
  • Page 2 Compressors and unloaders can all ten relay outputs may be used for compressors and fans (but be combined in various ways. Cf. max. eight for compressors and max. eight fans). survey on page 11. Manual RS8EJ302 © Danfoss 05-2010 AK-PC 530...
  • Page 3 Relays 2 and 4 are connected to the unloaders. Relays 1 and 3 will operate in such a way that the operating time for the two relays will become equalised. C = compressor, L = Unloader AK-PC 530 Manual RS8EJ302 © Danfoss 05-2010...
  • Page 4 I element may be left out, so that the controller will be with P regulation only. 3: As 1, but with P regulation (xp-band) 4: As 2, but with P regulation (xp-band) Manual RS8EJ302 © Danfoss 05-2010 AK-PC 530...
  • Page 5 The relays for unloaders can be set to switch on when more capacity is required (set- (switch on = 0) ting = 0), or they can switch off when more capacity is called for (setting = 1). (switch off = 1) AK-PC 530 Manual RS8EJ302 © Danfoss 05-2010...
  • Page 6 Speed control start value StartSpeed Speed control will only be activated when the capacity requirement reaches this value. Speed control stop value MinSpeed Speed control will be stopped when the capacity requirement falls below this value. Manual RS8EJ302 © Danfoss 05-2010 AK-PC 530...
  • Page 7 The controller can give alarm in different situations. When there is an alarm the light- emitting diodes (LED) will flash on the display and the alarm relay will cut in. (In AK-PC 530 the alarm relay may be used for a fan, if required). P0 min. (Alarm and safety function, see also page 20.) Min.
  • Page 8 Setting 11 will give a voltage of 1.25 V, setting 12 will give 2.5 V, etc. Frequency 50 / 60 Hz Set the net frequency. (50=0, 60=1) Manual RS8EJ302 © Danfoss 05-2010 AK-PC 530...
  • Page 9 The signal can be taken from DO9 of one controller and received on the ON input of the other controller. Example: AK-PC 530 Manual RS8EJ302 © Danfoss 05-2010...
  • Page 10 E2 Out of range At water cooler management without frost protection may alarm from a not mounted P0 input suppressed by connecting the signal from the PC (terminal 61) to P0 (terminal 58). Manual RS8EJ302 © Danfoss 05-2010 AK-PC 530...
  • Page 11 If capacity step 3 has to cut in relay numbers 3 and 4, you must set c19 to 12. c19 to 3 Continue with a setting for c20 etc. until all capacity steps have been defined. c20 to 4 c21 to 5 c22 to 6 c23 to 7 AK-PC 530 Manual RS8EJ302 © Danfoss 05-2010...
  • Page 12 If the entire condenser capacity is to be controlled by a frequency converter, AK-PC 530 must send an analog signal about the required capacity (“c29” = 9). The signal varies from 0 to 10 V. Signal and capacity have the following context.
  • Page 13 5. Push the middle button again to conclude the setting button. ( A brief pushing will show the active alarm codes. See page 17.) AK-PC 530 Manual RS8EJ302 © Danfoss 05-2010...
  • Page 14 0: Cut in when more capacity is required 1: Cut out when more capacity is required Regulation parameter for + Zone 0.1 K / 0.1 bar 20 K / 2.0 bar 4.0 / 0.4 bar To be continued Manual RS8EJ302 © Danfoss 05-2010 AK-PC 530...
  • Page 15 0 min. (-1=OFF) 999 min. 0 min. Miscellaneous Controllers address o03* On/off switch (service-pin message) o04* Access code 1 (0=OFF) * this setting is only possible if data communication module is mounted in the controller AK-PC 530 Manual RS8EJ302 © Danfoss 05-2010...
  • Page 16 If frost protection is required, the setting must be 1 or 2 and a pressure transmitter has to be mounted on P0 Display connection Off: EKA 164 On: EKA 165 (extended display with light-emitting diodes) Manual RS8EJ302 © Danfoss 05-2010 AK-PC 530...
  • Page 17 Access code is required before you have access to the settings * At water cooler management without frost protection may alarm from a not mounted P0 input suppressed by connecting the signal from the PC (terminal 61) to P0 (terminal 58). AK-PC 530 Manual RS8EJ302 © Danfoss 05-2010...
  • Page 18 See also page 9. sensor can be dispensed • In brine systems temperature measurement at terminals 57-58 and 60-61 may be used instead of pressure measurement with AKS 32R. See also o06. Manual RS8EJ302 © Danfoss 05-2010 AK-PC 530...
  • Page 19 Electronic controls are no substitute for normal, good engineering practice. Danfoss wil not be responsible for any goods, or plant compo- nents, damaged as a result of the above defects. It is the installer's responsibility to check the installation thoroughly, and to fit the necessary safety devices.
  • Page 20 To ensure that the fans are ‘exercised’ a test will be carried out every 24 hours to check whether all relays have been in operation. The relays that have not been used will now be activated for 30 seconds, but with a pause of one hour between individual relays. Manual RS8EJ302 © Danfoss 05-2010 AK-PC 530...
  • Page 21 They can therefore only be used in combination with data communication. Functions to be used in the system units Selection of parameter in AK-PC 530 Function via data communication override function 084B8007 Sw.1.3x...
  • Page 22 ”r29”. recovery, the setpoint (r28) must be set to this temperature. If there is sensor failure on the outdoor temperature sensor the reference will change over to the r28 setting. Manual RS8EJ302 © Danfoss 05-2010 AK-PC 530...
  • Page 23 Set Pc ref max. to at least 5 K under Pc max. (A30). When r33 = 3 or 4: Set Pc ref max. to at least (Xp value +5) K under Pc max. (A30). AK-PC 530 Manual RS8EJ302 © Danfoss 05-2010...
  • Page 24 Here you can see how a data communication connection to ADAP-KOOL® Refrigeration controls can be established. Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves 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 specifications already agreed.

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