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Summary of Contents for Danfoss AR05
- Page 1 AR05 Control \\MAINMENU\STATUS CAPB_T DEM_LIM 100 % 4.2 °C CTRL_PNT -28.9 °C EMSTOP dsable Circuit B Total Capacity START/STOP ENTER Operation instructions...
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Page 2: Table Of Contents
Contents 1 SAFETY CONSIDERATIONS ..............................3 1.1 - General ..............................................3 1.2 - Avoid electrocution........................................3 2 GENERAL DESCRIPTION ..............................3 2.1 - General ..............................................3 2.2 - Abbreviations used ........................................3 3 HARDWARE DESCRIPTION ..............................3 3.1 - General ..............................................3 3.2 - Electrical supply to boards ......................................4 3.3 - Light emitting diodes on boards....................................4 3.4 - The sensors ............................................4... -
Page 3: Safety Considerations
2 GENERAL DESCRIPTION display, two LEDs with fi ve navigation keys as well as a contrast control wheel. 2.1 - General An electronic control system is used to regulate the AR05 units. These units have one or two refrigerant circuits. Controls: •... -
Page 4: Electrical Supply To Boards
Figure 1 - Control board Green LED Unit has stopped Unit starts up Contrast control Unit in operation wheel Back to the previous Red LED screen No alarm Warning \\MAINMENU\STATUS CAPB_T Circuit or complete unit error DEM_LIM 100 % 4.2 °C CTRL_PNT -28.9 °C EMSTOP... - Page 5 NRCP2-BASE control board Optional PD-AUX board The following table summarises the connections at the user terminal block. Description Connector/ Terminal Board Remarks channel Contact 1: Start/stop J4/CH 8 32-33 NRCP2-BASE Used with the remote operating mode (Remote). Contact 2: Heating/cooling selection J4/CH 9 63-64 NRCP2-BASE...
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Page 6: Setting Up Control System
3.6.2 - Volt-free contact on/off /cooling/heating 4. SETTING UP CONTROL INTERFACE If the unit works in the remote operating mode (Remote) and the automatic heating/cooling changeover function is not 4.1 - General features selected and if the user confi guration allows this (heat pump and interface selection) the operation of the on/off... -
Page 7: Menu Screen Characteristics
Enter password \\MAINMENU\TEMP Current path in the menu structure 12.0°C List of items 1_** The fi rst digit is 1, the cursor is 7.0°C Cursor position positioned on the second digit 35.0°C CHWSTEMP -17.8°C (0 = basic access) SCT_A 57.0°C Leaving Water Temperature Description of the item framed by the selection cursor... -
Page 8: Operating Mode Screen
ATTENTION: If the user exits from the current data screen, the value is saved. A saving confi rmation is displayed. The Enter key validates the parameter modifi cation(s). The Return to the Previous Screen key cancels the current modifi cation(s). \\MAINMENUSETPOINT Current path in the menu structure Save changes? -
Page 9: Menu Tree Structure
4.8 - Menu tree structure Reglermanual - VMGFF102... -
Page 10: Detailed Menu Description
4.9 - Detailed menu description ATTENTION: Depending on the unit characteristics, certain menu items are not used. 4.9.1 - GENUNIT menu NAME FORMAT UNIT DESCRIPTION ctrl_typ 0/1/2 Local = 0. CCN = 1. Remote = 2 STATUS Running/Off /Stopping/ Operating status Delay Normal/Partial/Shutdown Alarm status... - Page 11 4.9.5 - INPUTS menu NAME FORMAT UNIT DESCRIPTION ONOFF_SW Open/Close Remote start/stop contact HC_SW Open/Close Remote heating/cooling contact on_ctrl Off , On Cool, On Heat, On Current control Auto SETP_SW Open/Close Remote setpoint contact LIM_SW1 Open/Close Remote demand limit contact 1 LIM_SW2 Open/Close Remote demand limit contact 2...
- Page 12 4.9.8 - RUNTIME menu NAME FORMAT UNIT DESCRIPTION HR_MACH nnnnn hours Unit operating hours st_mach nnnnn Number of start-ups, unit HR_CP_A1 nnnnn hours Operating hours compressor A1 st_cp_a1 nnnnn Number of start-ups compressor A1 HR_CP_A2 nnnnn hours Operating hours compressor A2 st_cp_a2 nnnnn Number of start-ups compressor A2...
- Page 13 4.9.10 - ALARMS menu NAME DESCRIPTION ALARMRST Alarm reset CUR_ALRM Current alarms ALMHIST1 Alarm history 4.9.11 - CONFIG menu NAME DESCRIPTION GEN_CONF General confi guration menu PUMPCONF Water pump confi guration menu HC_CONFIG Heating/cooling confi guration menu RESETCFG Reset confi guration menu USERCONFIG User confi...
- Page 14 4.9.15 - SCHEDULE menu NAME DESCRIPTION OCC1P01S Unit on/off time schedule OCC1P02S Unit setpoint selection time schedule 4.9.16 - HOLIDAY menu NAME DESCRIPTION HOLDY_01 Holiday period 1 HOLDY_02 Holiday period 2 HOLDY_03 Holiday period 3 HOLDY_04 Holiday period 4 HOLDY_05 Holiday period 5 HOLDY_06 Holiday period 6...
- Page 15 0 to 99 Year 4.9.24 - Menu CTRL_ID NAME FORMAT DEFAULT UNIT DESCRIPTION elemt_nb 1 to 239 Element number bus_nb 0 to 239 Bus number baudrate 9600 to 38400 9600 Communication speed AR05 Description CSA-SR-20H430NN Software version Serial number Reglermanual - VMGFF102...
- Page 16 4.9.25 - OCC1PSX menu Time schedule type: The control provides two timer programs: schedule 1 and MON: Monday Time schedule 2 that can be activated. TUE: Tuesday WED: Wednesday The fi rst timer program (schedule 1) provides a means to THU: Thursday automatically switch the unit from an occupied mode to an...
- Page 17 4.9.26 - HOLIDY0XS menu ATTENTION: The broadcast function must be activated to This function is used to defi ne 16 public holiday periods. utilise the holiday schedule, even if the unit is running in Each period is defi ned with the aid of three parameters: the stand-alone mode (not connected to CCN).
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Page 18: Control Operation
5 CONTROL OPERATION • Command set to Stop: the unit is halted. • Command set to Start: the unit runs in accordance with 5.1 - Start/stop control schedule 1. • Start/Stop schedule: occupied or unoccupied status of The table below summarises the unit control type and stop the unit as determined by the chiller start/stop program or go status with regard to the following parameters. -
Page 19: Heat Exchanger Water Pump Control
5.2.2 - Heating/cooling/auto selection • Remote heating/cooling contacts: these contacts are The table below summarises the unit heating/cooling opera- only active if the unit is under remote control. tion, based on the following parameters: • HC_SEL: this network command permits heating/ •... -
Page 20: Control Point
5.6 - Control point 5.6.2 - Reset Reset means that the active setpoint is modifi ed so that less The control point represents the water temperature that the machine capacity is required (in cooling mode, the setpoint is unit must produce. The heat exchanger entering water increased, in heating mode it is decreased). -
Page 21: Capacity Control
5.9 - Capacity control The user may confi gure the last available electric heating stages as a safety stage. In this case, the safety stage is only This function adjusts the number of active compressors to activated in addition to the other stages if there is a machine keep the heat exchanger water temperature at its setpoint. -
Page 22: Diagnostics Troubleshooting
The slave unit must stay in CCN operating type continuously. To 6 DIAGNOSTICS TROUBLESHOOTING stop the master/slave assembly, select Local Off on the master unit or use the remote volt-free contacts if the unit 6.1 - General has been confi gured for remote control. The control system has many fault tracing aid functions. -
Page 23: Alarm Codes
6.4 - Alarm codes Alarm No. Alarm Alarm description Reset type Probable cause Action taken by the control code Thermistor faults th-01 Sensor fault, fl uid entering water Automatic when the temperature Defective thermistor Unit is shut down heat exchanger measured by the sensor returns to normal th-02... - Page 24 6.4 - Alarm codes (cont.) Alarm No. Alarm Alarm description Reset type Probable cause Action taken by the control code Process faults (cont.) P-29 Communication loss with the System Automatic when communication is CCN installation bus defective Unit goes into autonomous mode Manager re-established P-30...
- Page 25 VMGFF102...
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