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TECHNICAL MANUAL

CVM 3000

C 5030 CV/04-99 GB

8.3 Alarm history printing

NASCOSTO 1+ T 6

The record printout has 7 columns and is structured as follows:

DESCRIPTION

LIMITS

Progressive print number

001-200

Hour of event

00-24

Dd/mm/yy of event

Alarm code

000-299

Number of events in the indicated hour

1-32

Compressor or circuit number

1-8

29-character alphanumeric string for alarm
description and associated compressor and/or
circuit number to which the alarm refers

Example:

** ALARM HISTORY **

PROG

No.

HR DATE FREQ/

CIRC

COMP

COD.

ALM.

DESCR.

ALM.

34 13 07/10/97

201 MAXIMUM PRESSURE

33 13 07/10/97

116 MAXIMUM PRESSURE

32 13 07/10/97

116 MAXIMUM PRESSURE

31 13 07/10/97

116 MAXIMUM PRESSURE

30 13 07/10/97

201 MAXIMUM PRESSURE

29 13 07/10/97

116 MAXIMUM PRESSURE

28 13 07/10/97

201 MAXIMUM PRESSURE

27 13 07/10/97

103 THERMAL PROTECTION

26 13 07/10/97

103 THERMAL PROTECTION

25 13 07/10/97

103 THERMAL PROTECTION

24 13 07/10/97

103 THERMAL PROTECTION

23 13 07/10/97

000 ANTIFREEZE

22 10 07/10/97

402 TEMPERATURE PROBE ERROR

21 10 07/10/97

401 TEMPERATURE PROBE ERROR

20 16 06/10/97

000 ANTIFREEZE

19 14 06/10/97

101 OIL DIFFERENTIAL

18 14 06/10/97

213 MINIMUM PRESSURE

17 13 06/10/97

213 MINIMUM PRESSURE

16 13 06/10/97

213 MINIMUM PRESSURE

15 13 06/10/97

213 MINIMUM PRESSURE

14 12 06/10/97

203 PUMP-DOWN PRESSURE

13 12 06/10/97

203 PUMP-DOWN PRESSURE

12 12 06/10/97

203 PUMP-DOWN PRESSURE

11 12 06/10/97

203 PUMP-DOWN PRESSURE

10 12 06/10/97

101 OIL DIFFERENTIAL

11 06/10/97

203 PUMP-DOWN PRESSURE

11 06/10/97

203 PUMP-DOWN PRESSURE

11 06/10/97

101 OIL DIFFERENTIAL

11 06/10/97

101 OIL DIFFERENTIAL

11 06/10/97

101 OIL DIFFERENTIAL

11 06/10/97

101 OIL DIFFERENTIAL

13 15/08/92

000 ANTIFREEZE

10 04/07/92

000 ANTIFREEZE

10 04/07/92

003 COLD FLOW SWITCH INLET

Содержание CVM 3000

Страница 1: ...NG CONDITIONS 19 5 7 TEMPERATURE DISPLAY 20 5 7 1 Version C Chiller 20 5 7 2 Versions R N Q Chiller with recovery Heat pumps Multipurpose units 20 5 7 3 Version FC Chiller with free cooling 21 5 8 OPE...

Страница 2: ...LAMP TEST 37 8 5 PRINTER CHARACTERISTICS FOR CONNECTION TO CVM 3000 38 9 HOUR BAND PROGRAMMING 39 9 1 KEYS 39 9 2 LED S 39 9 3 THE DISPLAY DURING PROGRAMMING 39 9 4 HOUR BAND EXECUTION 40 10 UPGRADIN...

Страница 3: ...main board communicates with the keyboard through a serial current loop and with the expansion board through a RS485 serial port A board logic board with the microprocessor used to control all the ele...

Страница 4: ...9b 10b 11b 12b 13b 14b 15b 16b 17b 18b 19b 20b 21b 22b 23b 24b 25b 26b 27b 28b 29b 30b 31b 32b 33 34 35 36 37 38 105 106 107 108 109 110 111 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 2...

Страница 5: ...TECHNICAL MANUAL CVM 3000 C 5030 CV 04 99 GB 5 Figure 1 2 MAIN BOARD DETAIL...

Страница 6: ...e 1 3 EXPANSION MODULE 2 Set all the dip switches to ON Figure 1 3 EXPANSION MODULE 129 128 127 126 125 124 123 122 121 120 119 118 117 116 115 177 176 175 174 130 131 132 133 134 135 136 137 138 139...

Страница 7: ...signal terminals 98 99 100 E COM 3 serial port DTR signal F COM 3 serial port Tx signal terminals 98 99 100 G Supply to terminals main board power supply 94 95 H COM 4 serial port Rx signal terminals...

Страница 8: ...Temperature C 10 0 10 20 25 Resistance 740 807 877 951 990 Temperature C 30 40 50 60 70 Resistance 1029 1111 1196 1286 1378 Temperature C 80 90 100 110 120 Resistance 1475 1575 1679 1796 1896 Tempera...

Страница 9: ...5 Current mA 6 14 6 41 6 68 6 94 7 21 7 48 7 75 8 01 Pressure Bar 8 0 8 5 9 0 9 5 10 0 10 5 11 0 11 5 Current mA 8 28 8 55 8 82 9 08 9 35 9 62 9 89 10 15 Pressure Bar 12 0 12 5 13 0 13 5 14 0 14 5 15...

Страница 10: ...contact unit on Using the REMOTE ON OFF control For proper use of the unit s remote on off control the following delay time must be set between the unit s on off control and the water pump control Pum...

Страница 11: ...each the terminal of the corresponding contact 40 41 42 43 44 45 46 47 Compressor maximum safety high pressure switch signal input 48 49 50 51 52 53 54 55 Compressor thermal overload protection signal...

Страница 12: ...4 RL5 88 87 89 RL6 RL7 85 84 86 RL8 RL9 82 81 83 RL10 RL11 79 78 80 RL12 RL13 76 75 77 RL14 RL15 73 72 74 RL16 RL17 70 69 71 RL18 RL19 67 66 68 RL20 RL21 RL22 RL23 RL24 RL25 64 63 62 61 60 59 65 58 Ex...

Страница 13: ...board has an input for monitoring the voltage and frequency value 103 104 Input for voltage to be monitored range 0 260 Vac Verification of the voltage value read by the board read the voltage to term...

Страница 14: ...lconnections COM1 0 20mA half duplex serial interface for connection with the display board MAIN BOARD KEYBOARD 102 Input 5 101 Output 6 COM2 0 20mA half duplex serial interface for connection between...

Страница 15: ...r distances The maximum distance of the cable that connects the CVM Master the Interface the supervision software to the farthest unit must not exceed 1000 meters As shown in the figure the single shi...

Страница 16: ...COM4 RS485 half duplex serial interface with DTR for remote connection by modem 96 bis DTR 96 RS485 97 RS485 98 reference 1 Refer to manual for description and use 2 Refer to manual for description an...

Страница 17: ...POWER LED is on it means that the electronic control is supplied with power Before you switch on the unit make sure that it has been supplied with power for at least 8 hours in order to enable the hea...

Страница 18: ...A1 key corresponding to the compressor to be disabled The LED on the key will go off Use this function only for emergency stops since the pump down procedure is not carried out and the compressor may...

Страница 19: ...other values may be visualised on the B5 display selected through the B6 arrow down key The values that may be visualised are low pressure default compressor differential oil pressure discharge tempe...

Страница 20: ...ller with recovery Heat Pumps Multipurpose Units Evaporator inlet temperature press the T4 key CHILLED WATER The LED on the key will light up read the value on the C2 display Evaporator outlet tempera...

Страница 21: ...key The LED on the key will light up read the value on the C2 display Free cooling coil outlet temperature evaporator inlet press the T18 key The LED on the key will light up read the value on the C2...

Страница 22: ...8 2 N version Selection of chiller operating mode To select the chiller operating mode press the T11 key The LED on the key will light up Selection of heat pump operating mode To select the heat pump...

Страница 23: ...hen the automatic operating mode has been selected both the cold and hot circuit pumps must be in operation Selection of chiller operating mode press the T21 key The LED on the key will light up Selec...

Страница 24: ...rcuit compressor and the general alarms 5 10 1 Circuit and or compressor alarms Display of circuit and compressor alarms The circuit alarms are signalled by the lighting up of the FAULT A2 LED corresp...

Страница 25: ...2 display the alarm code will appear The corresponding C1 LED will light up simultaneously in case of a flow switch or antifreeze alarm In case of a voltage alarm the POWER LED will flash Alarm reset...

Страница 26: ...D lp The maximum number of low pressure automatic reset alarms has been reached and therefore the alarm must be reset manually B1 LED hp End of high pressure alarm manual reset is possible B1 LED op E...

Страница 27: ...s in water circuit Flow switch malfunction E004 Hot water circuit flow switch A Not correct water flow rate to the condenser Air bubbles in water circuit Flow switch malfunction E005 Low inlet tempera...

Страница 28: ...ith the keyboard the COLL message appears on the C2 display and the alarm code is recorded in the alarm history E037 Expansion board disconnected A No serial communication with the expansion board E03...

Страница 29: ...temperature probe placed near coils fins E211 Maximum defrost time Only on alarm list Event recorded only in alarm history E213 Low pressure A M Not correct water flow rate to the evaporator Dirty eva...

Страница 30: ...set point using the C3 keys arrow up to raise arrow down to lower press the T2 key to confirm The LED on the key will go off press the T3 key The LED on the key will light up the value of the t settin...

Страница 31: ...tical minimum and maximum values indicated in the table for the outlet temperature refer to nominal flow rate operation and therefore with a 5 C evaporator thermal head No of steps Set point C t C The...

Страница 32: ...C3 keys arrow up to increase arrow down to decrease press the T9 key to confirm The LED on the key will go off press the T10 key The LED on the key will light up the value of the t setting will appear...

Страница 33: ...l minimum and maximum values indicated in the table for the outlet temperature refer to nominal flow rate operation and therefore with a 5 C evaporator thermal head No of steps Set point C t C Theoret...

Страница 34: ...AND FOR FAN REGULATION IN FREE COOLING OPERATING MODE 0 500 2 C 85 PRIMARY CIRCUIT INTEGRAL TIME 0 600 0 sec 87 SECONDARY CIRCUIT INTEGRAL TIME 0 600 0 sec 98 MINIMUM DIFFERENCE BETWEEN INLET WATER TE...

Страница 35: ...rinting NASCOSTO 1 T 7 Each line of print has the following structure 1 parameter number 2 parameter value 3 unit of measurement For the printing of pressure values the unit of measurement and the pos...

Страница 36: ...MAL PROTECTION 26 13 07 10 97 01 4 103 THERMAL PROTECTION 25 13 07 10 97 01 2 103 THERMAL PROTECTION 24 13 07 10 97 01 1 103 THERMAL PROTECTION 23 13 07 10 97 01 000 ANTIFREEZE 22 10 07 10 97 02 402 T...

Страница 37: ...ocedure for lighting up all the front panel LED s and displays in order to verify the proper keyboard and display operation When the unit is switched on a 10 second lamp test is carried out automatica...

Страница 38: ...p SW 1 1 OFF Input Serial 2 ON Printing Speed High 3 OFF Auto Loading OFF 4 OFF Auto LF OFF 5 ON Setting Command Enable 6 OFF Printing 7 ON Density 8 ON 100 Dip SW 2 1 OFF Printing Columns 80 2 ON Use...

Страница 39: ...en the hour band operating mode is active it flashes during programming 9 3 The display during programming B2 day B4 band B5 starting time C2 value selected based on the set keys and proportional band...

Страница 40: ...n enabled the following parameters cannot be modified operating mode setting proportional band However compressor selection can temporarily be modified in case of an emergency When hour band execution...

Страница 41: ...7 install the self calibration kit in the appropriate board terminals 8 reconnect the power supply 9 to access the programming menu press the NASCOSTO 2 C3 keys arrow up A dot should start flashing on...

Страница 42: ...the power supply to the unit 18 remove the self calibration kit 19 reconnect the power supply to the unit 20 enter the programming menu see point 9 21 re program the unit check the value of the parame...

Страница 43: ...es off 9 scroll through the parameter list using the C3 keys and visualise parameter 121 on the C2 display 10 repeat step 8 so that the value of parameters 120 121 152 153 on the B4 display is respect...

Страница 44: ...w up 6 enable the compressors see chap 8 3 To access the FACTORY menu 1 disable the compressors see chap 8 4 2 the displays must be off 3 press the NASCOSTO 2 C3 keys arrow up A dot should start flash...

Страница 45: ...ALARM DELAY 0 10 5 sec 8 M ANTIFREEZE ALARM DIFFERENTIAL 0 20 4 C 9 CO MINIMUM TIME BETWEEN COMPRESSOR SHUTDOWN AND STARTUP 0 500 60 sec 10 M MINIMUM STARTUP DELAY TIME BETWEEN COMPRESSORS ANTIPEAK 0...

Страница 46: ...1 2 6 1 3 7 2 1 8 2 2 9 2 3 10 3 1 11 3 2 12 3 3 Table 13 1 CIRCUIT CONFIGURATION 28 CI LOW PRESSURE ALARM SET 1 0 7 0 Tab 13 2 29 CI LOW PRESSURE ALARM DIFFERENTIAL 0 0 10 0 Tab 13 2 R22 R407C Bar R1...

Страница 47: ...M HOUR BAND ENABLE 0 NOT ENABLED 1 ENABLED 0 1 Flag 38 C MAXIMUM NUMBER OF LOW PRESSURE ALARMS PER HOUR 0 30 3 Num 39 M COMPRESSOR STARTUP SHUTDOWN MODE BY THE THERMOREGULATOR MUST BE SET TO 0 FOR UNI...

Страница 48: ...RECOVERY 10 0 28 0 23 5 Bar 56 CI PRESSURE DIFFERENTIAL FOR END OF FORCING IN CHILLER MODE UNITS WITH RECOVERY 0 10 5 0 Bar 57 CI MINIMUM TIME OF CHILLER MODE OPERATION AFTER FORCING IN UNITS WITH RE...

Страница 49: ...WITH OPEN CONTACT 1 flag 78 M POLARITY OF WATER FLOW SWITCH INPUT ON SECONDARY CIRCUIT 0 FLOW ALARM WITH CLOSE CONTACT 1 FLOW ALARM WITH OPEN CONTACT 0 flag 79 M PRIMARY CIRCUIT FLOW SWITCH ALARM DELA...

Страница 50: ...TO THE NEXT ONE 1 DISTRIBUTION OF STEPS BETWEEN CIRCUITS 0 92 M MAINS FREQUENCY VISUALISATION Hz 93 M MAINS VOLTAGE VISUALISATION V 94 C LOW PRESSURE ALARM DELAY IN DEFROST MODE 0 500 300 sec 95 M SE...

Страница 51: ...VERY RELAYS PER CIRCUIT 0 1 0 1 num 116 C ENABLING OF PUMP DOWN DURING UNIT S START WORKS ONLY IF PUMP DOWN UNIT S STOP IS ENABLED IT MUST BE 0 FOR UNITS WITH SCREW COMPRESSORS 0 NOT ENABLED 1 ENABLED...

Страница 52: ...LP pressure probe offset CIRCUIT N 2 10 10 0 0 Bar 158 M SP7 LP pressure probe offset CIRCUIT N 3 10 10 0 0 Bar 159 M SP8 LP pressure probe offset CIRCUIT N 4 10 10 0 0 Bar 160 M SP9 0P pressure probe...

Страница 53: ...me S7 FOR WRQ WRAQ UNITS ONLY 0 100 0 sec 206 M relay status S8 FOR WRQ WRAQ UNITS ONLY 000 3FF 009 hex 207 M relay time S8 FOR WRQ WRAQ UNITS ONLY 0 100 0 sec 210 M first step HP set 0 30 14 Bar 211...

Страница 54: ...ME TO ACTIVATION OF RELAY 0 120 30 sec 253 M SUBCOOLING SET POINT 0 100 5 0 C 254 M SUBCOOLING PROPORTIONAL BAND 0 10 1 0 C 255 M TYPE OF REFRIGERANT GAS USED 1 3 Tab 13 8 PARAMETER VALUE DESCRIPTION...

Страница 55: ...IN FULL OPERATION OF COMPRESSOR 3 0 300 sec 288 CO RESIDUAL TIME ALLOWED WITH CAPACITY STEPS ON COMPRESSOR 4 0 300 min 289 CO RESIDUAL TIME IN FULL OPERATION OF COMPRESSOR 4 0 300 sec 290 CO RESIDUAL...

Страница 56: ...N 4 10 10 0 0 Bar 156 M SP5 HP pressure probe offset CIRCUIT N 5 10 10 0 0 Bar 157 M SP6 HP pressure probe offset CIRCUIT N 6 10 10 0 0 Bar 158 M SP7 HP pressure probe offset CIRCUIT N 7 10 10 0 0 Ba...

Страница 57: ...TECHNICAL MANUAL CVM 3000 C 5030 CV 04 99 GB 57 14 Enclosures Figure 1 Figure 2 Figure 3...

Страница 58: ...TECHNICAL MANUAL CVM 3000 C 5030 CV 04 99 GB 58 Figure 4 Figure 5 Figure 6...

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