Danfoss EKC 347 Manual

Danfoss EKC 347 Manual

Liquid level controller
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Liquid level controller
EKC 347
Manual

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Summary of Contents for Danfoss EKC 347

  • Page 1 Liquid level controller EKC 347 Manual...
  • Page 2 A analog input signal (voltage/ current) can displace the setpoint and then remote change of setpoint is thus possible. EKC 347 does support 2 types of Danfoss expansion valves. (see below) One analog input is available as feed back from ICM in order to indicate Opening degreee of the ICM.
  • Page 3 Receiver / condenser The control system’s short reaction time makes it very suited for high-pressure float systems with small refrigerant charges. EKC 347 Manual RS8AX702 DKRCC.ES.R1.A1.02/ 520H4020 © Danfoss 01-2011...
  • Page 4 When the alarm level is exceeded a timer function will start. The relay will not become activated until the set time delay has been passed. The time delay is set in seconds. Manual RS8AX702 DKRCC.ES.R1.A1.02/ 520H4020 © Danfoss 01-2011 EKC 347...
  • Page 5 Here you can make a setting if you require a limitation of the valve’s working range. Max. opening degree n32 OD Max. Here you can make a setting if you require a limitation of the valve’s working range. EKC 347 Manual RS8AX702 DKRCC.ES.R1.A1.02/ 520H4020 © Danfoss 01-2011...
  • Page 6 With settings 1 and 2 the AO [mA] signal is dedicated for the motor valve ICM. With settings 3, 4, AO [mA] will be send out a signal for process indications. With settings 6, 7, 8, 9, 10 or 11, AO [mA] on EKC 347 SLAVE, will be send out a signal for process indications.
  • Page 7 The individual status codes have the following meanings: S10: Level regulation stopped by the internal or external start/ stop S12: Liquid level had exceeded A01 limit or Liquid level is lower than A02 limit EKC 347 Manual RS8AX702 DKRCC.ES.R1.A1.02/ 520H4020 © Danfoss 01-2011...
  • Page 8 15: AKV/A, SLAVE 1/2. AO:0-20 mA- AO always updated Installation guide, "Data communication link 16: AKV/A, SLAVE 2/2. AO:4-20 mA- AO always updated for ADAP-KOOL® " ..............RC8AC--- 17: AKV/A, SLAVE 2/2. AO:0-20 mA- AO always updated Manual RS8AX702 DKRCC.ES.R1.A1.02/ 520H4020 © Danfoss 01-2011 EKC 347...
  • Page 9 0/50 1/60 Set supply voltage frequency If E21 is detected. EKC 347 will force the valve to close or open the valve depending Selection of parameter for display and AO (except from af n35 when o09=1,2 or 5) If o34 = 0: If Low pressure has been selected.
  • Page 10 It is important that the installation of the data communi- AKS 41/41U cation cable be done correctly. Cf. separate literature No. RC8AC... EKC 347 5 VA 20 W coil for AKV 55 VA Manual RS8AX702 DKRCC.ES.R1.A1.02/ 520H4020 © Danfoss 01-2011 EKC 347...
  • Page 11 Connections examples EKC 347 – ON/OFF Application. Open/Close solenoid valve with coil 110 V 0-10V Voltage : 110 V a.c Auxiliary relay, Solenoid with coil : with coil : 24 V a.c 110 V a.c Low pressure system ON/OFF application Beside of modulating PI control EKC 347 does also support ON/ OFF operation with hysteresis.
  • Page 12 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.
  • Page 13 EKC 347 Manual RS8AX702 DKRCC.ES.R1.A1.02/ 520H4020 © Danfoss 01-2011...
  • Page 14 Manual RS8AX702 DKRCC.ES.R1.A1.02/ 520H4020 © Danfoss 01-2011 EKC 347...
  • Page 15 EKC 347 Manual RS8AX702 DKRCC.ES.R1.A1.02/ 520H4020 © Danfoss 01-2011...

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