Carel ir33 DIN User Manual
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Summary of Contents for Carel ir33 DIN
- Page 1 DIN powercompact powercompact small mastercella User manual...
- Page 3 User manual...
- Page 4 The technical specifi cations shown in the manual may be changed without prior warning. The liability of CAREL in relation to its products is specifi ed in the CAREL general contract conditions, available on the website www.carel.com and/or by specifi c agreements with customers; specifi cally, to...
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Page 5: Table Of Contents
Content 1. INTRODUCTION 1.1 Main features ............................7 2.1 Display ..............................9 2. USER INTERFACE 2.2 ir33,ir33 power and ir33DIN keypad ....................10 2.3 powercompact, powercompact small and MasterCella keypad ..........11 3. INSTALLATION 4. PROGRAMMING THE INSTRUMENTS 4.1 Modifying the parameters ........................13 4.2 Storing the new values assigned to the parameters ..............13 4.3 Classifi... - Page 6 7. DESCRIPTION OF THE OPERATING PARAMETERS 7.1 Temperature probe management parameters ................34 7.2 Temperature control parameters ......................36 7.3 Compressor management parameters .....................38 7.4 Defrost management parameters ......................40 7.5 Alarm management parameters ......................43 7.6 Fan management parameters ......................50 7.7 General confi guration parameters .....................51 7.8 HACCP alarm management parameters ..................54 7.9 RTC and timed defrost management parameters ................55 7.10 Summary table of operating parameters ..................56...
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Page 7: Introduction
1. INTRODUCTION The ir33 platform for refrigeration is a complete range of products made up of integrated electronic microprocessor controllers with LED display, designed especially for the control of stand-alone refrigeration units: These controllers are especially suitable in applications that require high load switching power, a considerable number of outputs, functions and control with direct access from the keypad, high front panel IP and, at the same time, a compact shape that signifi... - Page 8 The controllers feature management of multiplexed defrosts, remote alarm signals and the downloading of the parameters via the local network. Parameter selection Selection of the parameters on the display simplifi ed by the use of icons or with the standard Carel procedure. Confi guration of the digital inputs The digital inputs can be confi...
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Page 9: Display
2. USER INTERFACE 2.1 Display ir33, ir33 DIN, ir33 power, powercompact, powercompact small MasterCella Fig. 2.a ICON FUNCTION DESCRIPTION Normal operation Start up BLINK COMPRESSOR ON when the compressor starts. Flashes when the activation Compressor on Compressor off awaiting activation of the compressor is delayed by safety times. -
Page 10: Ir33,Ir33 Power And Ir33Din Keypad
2.2 ir33, ir33 power and ir33DIN keypad ir33 DIN ir33, ir33 power Fig. 2.b Icon Normal operation Start up Automatic address assignment request pressing the button alone pressing together with other buttons If pressed for more than 5 seconds, accesses... -
Page 11: Powercompact, Powercompact Small And Mastercella Keypad
2.3 powercompact, powercompact small and MasterCella keypad MasterCella powercompact, powercompact small Fig. 2.c Icon Normal operation Start up Automatic address assignment request pressing the button alone pressing together with other buttons Enters the menu to display and delete of the HACCP alarms HACCP If pressed for more than 5 seconds, switches the unit on/off... -
Page 12: Installation
3. INSTALLATION To install the controller, proceed as follows, with reference to the connection diagrams shown in the manual on electrical specifi cations and connections: 1. connect the probes and power supply: the probes can be installed up to a maximum distance of 10 m from the controller, using shielded cables with a minimum cross-section of 1mm². -
Page 13: Programming The Instruments
4. PROGRAMMING THE INSTRUMENTS The operating parameters can be modifi ed using the front keypad, and are divided into two families: frequent use parameters (type “F”) and confi guration parameters (type “C”). Access to the confi guration parameters is protected by a password that prevents unwanted modifi cations or access by unauthorised persons. -
Page 14: Setting The Set Point
The automatic setting of the serial address is a special procedure that, by using an application installed on a PC connected to the CAREL network (included in the PlantVisor supervision and monitoring software), sets and manages the addresses of all the instruments that include this feature in a simple way. Using the remo- te application, start the “Network defi... -
Page 15: Parameter Copying Key
The programming keys PSOPZKEY00 (Figure 5.a) and PSOPZKEYA0 (Figure 5.b) are used to copy the complete set of parameters relating to the CAREL ir33 controller parameters. The keys must be connected to the connector (4 pin AMP) fi tted on the compatible controllers, and work even without switching the controller on. -
Page 16: Remote Control
5.2 Remote control The compact remote control with 22 buttons, allows direct access to the following parameters (Fig. 5.f): • temperature; • defrost; • fans; • alarms; • HACCP. The following functions can also be controlled: • start defrost; • AUX; •... -
Page 17: Rs485 Serial Interface
5.3 RS485 serial interface The RS485 serial card option (IROPZ48500), shown in Figure 5.l, allows the ir33 instrument to be con- nected to the RS485 serial network for supervision. In addition, the serial interface option IROPZ485S0 is available, with automatic recognition of the polarity (+ and -). For further details, refer to the corresponding instruction sheet. -
Page 18: Terminals (Mastercella)
• PSTCON03B0 = 3 m • PSTCON05B0 = 5 m for MasterCella only: IR00R*0000 PSTCON0300: 3 m PSTCON1000: 10 m PSTCON0**B0 IROPZDSP00 IR00R*0000 ir33 DIN PSTCON0**B0 IROPZSER30 IROPZSEM30 MasterCella PSTCON0**00 IR00R*0000 Fig. 5.v Fig. 5.v ir33 +030220441 - rel. 2.0 - 01.05.2006... -
Page 19: Description Of The Functions
(*) = ir33 only auxiliary output 1 (**) = powercompact and ir33 DIN only auxiliary output 2 (***) = mastercella only Tab. 6.a The controllers can be fi tted with a maximum of two auxiliary relays. The associated functions are: •... -
Page 20: Switching The Controller On And Off
6.3 Switching the controller ON and OFF The unit can be switched ON/OFF from a number of sources; supervisor and digital input. In this opera- ting mode, the display will be show the temperature selected for parameter /tI, alternating with the OFF message. -
Page 21: Light Management
6.4 Auxiliary output management The auxiliary output can be controlled by a number of sources: button, supervisor, digital input, and time band. The AUX is switched on and off in the following events: Action Button pressing the button Supervisor variation in value from the supervisor Digital input change in the status of the contact (opening/closing) Time band... - Page 22 • immediate alarm from external digital input (A4, A5), as this delays compressor activation; • alarm delayed by time (A7) from external digital input (A4, A5) as this delays compressor activation; • high condenser temperature alarm (only with hot gas defrost), as this delays compressor activation •...
- Page 23 6.6.7 Dripping The dripping time is set by parameter dd, when the compressor is OFF and the fans are OFF. At the end of dripping time, the post-dripping phase starts with the fans OFF (Fd): • the compressor restarts normal operation; •...
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Page 24: New Defrost Activation Modes
6.7 New defrost activation modes 6.7.1 Defrost according to compressor running time To enable the controller for this operating mode, set a value >0 for parameter d10. This mode affects the start defrost, that is, according to the evaporator temperature (parameter d11), the controller checks the compressor running time (parameter d10) and decides whether to activate the defrost or not. - Page 25 6.7.3 Defrost at intervals calculated according to the duration of the previous defrost: Skip defrost To enable the controller for this operating mode, set the parameter d12=2. In this case, according to the duration of the last defrost operation, the controller establishes whether the next defrost is skipped or not.
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Page 26: Pump Down And Low Pressure
6.8 Pump down and low pressure 6.8.1 Enabling the function The pump down function is activated by setting parameter c7 (pump down duration) to any value other than zero. The pump down valve must be connected to the auxiliary output, setting the relevant parameter (H1). In addition, one of the digital inputs (A4, A5) must be set as a low pressure input. - Page 27 6.9.2 Continuous cycle in progress When the continuous cycle is running: • the compressor is always ON; • the low temperature alarm is deactivated; • the icon is on steady. If, during the continuous cycle, the door is opened and one of the digital inputs is set to manage the opening of the door, the compressor stops and consequently the continuous cycle is temporarily interrupted.
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Page 28: High Condensing Temperature Alarm
6.10 High condensing temperature alarm If a probe is set as a condenser probe (/A2, /A3, /A4, /A5), the condensing temperature can be monitored and a high temperature condition signalled, probably due to situations of fouling and obstruction. If no condenser probe is selected, the condenser pre-alarm and alarm are disabled. The condenser fan output, if selected, is always OFF. -
Page 29: Control With Dead Band
6.11 Control with dead band Control with dead band can be activated by using the aux1 output for the reverse step: H1=11. The set point ‘St’ is in the centre of the dead band. The parameter ‘rd’ represents the control differential associated with the compressor, ‘rn’ the size of the REVERSE DIRECT dead band, ‘rr’... -
Page 30: Control With Second Step
6.12 Control with second step Direct Control with a second step can be activated, using the aux1 output, ‘H1=12 or 13 (with selection of rotation). The set point for the second step is equal to the sum of the set point ‘St’ and the parameter ‘rd’/2, which Zona neutra Direct represents the differential. -
Page 31: Anti-Sweat Heater Function
6.13 Anti-sweat heater function The anti-sweat heater function is used to maintain the aux1 output, confi gured as the light or aux: (H1= 2, 3, 8, 9) deactivated while the control temperature (virtual probe) is less than ‘St’+‘Hdh’ when the instrument is fi rst powered up, the ‘HI’... -
Page 32: Special Functions For The Management Of Multiplexed Cabinets (Mpx)
Function active Function in antifreeze Door switch with compressor, fan off, no light management Normal operation Door switch with compressor off, no light management Normal operation Light activation from keypad or supervisor Normal operation Auxiliary activation from keypad or supervisor Normal operation Alarms See table of alarms and signals... -
Page 33: Haccp (Hazard Analysis And Critical Control Point)
6.16 HACCP (Hazard Analysis and Critical Control Point) This function can only be activated on the controllers with the RTC option fi tted, and allows advanced control of the operating temperature and the recording of any anomalies due to power failures or increases in the operating temperature due to various causes (breakages, severe operating conditions, operator errors, etc…). -
Page 34: Description Of The Operating Parameters
7. DESCRIPTION OF THE OPERATING PARAMETERS 7.1 Temperature probe management parameters Code Parameter MSYF ** Type Def. Password MSYF Measurement stability MSYF Probe display response MSYF Virtual probe MSYF Select °C or °F MSYF fl ag Decimal point MSYF fl ag Display on internal terminal MSYF Display on external terminal... - Page 35 /4: Probe average (virtual probe) This parameter is used to choose whether to control the temperature based solely on the room probe reading, or alternatively whether to refer to the “weighted” average of the room probe S1 and probe 2 (S2, see the parameter ‘/A2’).
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Page 36: Temperature Control Parameters
/A2: Confi guration of probe 2 Used to confi gure the operating mode of probe 2. /A2= 0 => probe 2 absent /A2= 1 => product probe (used for display only) /A2= 2 => defrost probe /A2= 3 => condenser probe /A2 = 4 =>... - Page 37 rn: Dead band Establishes the value of the dead band, when the auxiliary output is selected as heating, in control with dead band mode. The differential is in the centre of the dead band. Note: • the step associated with the aux1 output is only associated with the protection timer c0, while the step associated with the compressor (in both direct and reverse operation) is associated with the timers c0, c1, c2, c3.
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Page 38: Compressor Management Parameters
7.3 Compressor management parameters accensione strumento power ON Code Parametro MSYF ** U.M. Type Min Max Def. richiesta di intervento Compressor, fan and AUX start delay on power up in -SYF insertion request dead zone Minimum time between successive starts -SYF compressore compressors... - Page 39 cc: Continuous cycle duration This is the time (in hours) during which the compressor operates continuously to lower the temperature, even below the set point. With cc=0 => the continuous cycle is disabled. The controller exits the conti- nuous cycle procedure after the time set for parameter cc has elapsed, or upon reaching the minimum specifi...
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Page 40: Defrost Management Parameters
7.4 Defrost management parameters Code Parameter MSYF ** UOM Type Min Def. Type of defrost -SYF fl ag Interval between defrosts -SYF hours End defrost temperature, evaporator -SYF °C/°F End defrost temperature, aux evap. -SYF °C/°F Maximum defrost duration, evaporator -SYF Maximum defrost duration, aux evap. - Page 41 dt1: evaporator end defrost temperature set point This parameter is used to set the end defrost temperature, measured on the evaporator. In any case, the maximum defrost duration is equal to the value, in minutes, set for parameter dP1. • if when a defrost is requested, the temperature measured by the defrost probe on the evaporator is greater than the value set for the end defrost, the cycle is not performed (including the dripping and post-dripping phases).
- Page 42 d6: Display during defrost Specifi ed values: • d6=0 => during the defrost the instrument displays the text dEF alternating with the value read by the probe selected using parameter /tI. This is to signal that any high temperature values are due to the defrost procedure in progress.
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Page 43: Alarm Management Parameters
d11: Running time temperature threshold This parameter indicates the evaporation temperature below which the compressor must continue to operate for the time d10 in order to generate a defrost request. Default: d11 =1 => 1°C. d12: Advanced auto-adapting defrosts This parameter is used to enable and disable the advanced defrost function, as per the following table: Skip defrost Automatic variation of dI Disabled... - Page 44 Warnings for the relative threshold: The value of AL does not indicate the actual alarm temperature, but the maximum permissible deviation from the set point; changing the set point automatically changes the low temperature alarm, while the maximum deviation allowed (=AL ) remains fi xed. Note: the low temperature alarm features automatic reset (this means that if the temperature returns above the minimum value set, the alarm signal is cancelled automatically).
- Page 45 Note: • if more than one digital input is confi gured as the immediate alarm, the alarm will be generated when at least one of the inputs is open. • if control with two compressor steps is selected (with or without rotation, H1, H5 = 12 or 13) the immediate external alarm acts on both steps.
- Page 46 To stop the reading from fl ashing, close the door. When the door is closed, the controller returns to normal operation, switching off the light and enabling the temperature alarm after the delay time d8. The compressor is re-started observing any protection times selected (see the C parameters). Case 2: door opened with light ON: SAssuming the user enters the cold room, turning on the light before entering, closing the door behind him, and then exits the room, closing the door a second time.
- Page 47 A4 = Low pressure switch input for pump down The low pressure alarm LP is signalled when the pressure switch signals a low pressure situation with the pump down valve open and the compressor on, if the pump down function is active, or when the compressor is on.
- Page 48 A4 =13 Door switch with compressor and fans off and light not managed. Same as for A4=5, with the difference that the light output is not modifi ed. Note: 1. the door management algorithm depends on the parameter ‘Ado’. 2. if more than one digital input is confi gured as the door switch, the door open status will be conside- red when at least one of the inputs is open.
- Page 49 Ado: Light management mode with door switch (masked parameter) This parameter is used to select the algorithm for managing the door. Light when opening the door Algorithm Description normal open-close extended open-close-open-close extendednor- open-close-open-close open-close Tab. 7.i Note: if the digital input is selected so as not to manage the light (A4, A5 = 13 or 14) the algorithm is modifi...
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Page 50: Fan Management Parameters
7.6 Fan management parameters Code Parameter MSYF ** UOM Type Min Max Def. Fan management ---F fl ag Fan start temperature ---F °C/°F Fan OFF with compressor OFF ---F fl ag Fans in defrost ---F fl ag Fan OFF after dripping ---F Condenser fan stop temperature MSYF... -
Page 51: General Confi Guration Parameters
F4: Condenser fan stop temperature This is used to select the temperature at which the condenser fans should be switched OFF. If setting the ON ventole auxiliary relay as the condenser fan output (see parameter H1), this will enable adjustments according to the diagram in Figure 7.p: When the compressor is fi... - Page 52 H1=11- reverse output in control with dead band: used to activate control with dead band (‘St’ ‘rd’ ‘rn’ ‘rr’), using the auxiliary output aux1 for the reverse function. H1=12 - second compressor step output. H1=13 - second compressor step output with rotation . Important: lmode ‘H1’=0 is also useful for signalling power failures.
- Page 53 H8: Select light or AUX output to activate with time band. This parameter can be used to select the output that is activated or deactivate according to the time band (see parameters tON and tOF). H8=0=> Time band linked to output confi gured as the light. H8=1=>...
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Page 54: Haccp Alarm Management Parameters
HrL: enable the synchronizer to remote the status of the master light relay to the slave controller (masked parameter). The parameter HrL enables the synchronizer to remote the light relay status light on the master to the slave controller. Consequently, the light relay on the slave will repeat the status of the light relay on the master. -
Page 55: Rtc And Timed Defrost Management Parameters
HF1 and HF2 access a submenu where, by pressing the * and * buttons, the year, month, day, hour, minutes and duration of the last HF alarm activated can be scrolled. E.g: ‘y03’ -> ‘M08’ -> ‘d29’ -> ‘h19’ -> ‘m45’ -> ‘t98’ indicates that the last alarm HA was activated on 29 July 2003 at 19:45 and lasted 98 hours. -
Page 56: Summary Table Of Operating Parameters
7.10 Summary table of operating parameters Code Parameter MSYF ** Type Def. Password MSYF Measurement stability MSYF Probe display response MSYF Virtual probe MSYF Select °C or °F MSYF fl ag Decimal point MSYF fl ag Display on internal terminal MSYF Display on external terminal MSYF... - Page 57 Digital input 3 confi guration -SYF fl ag Light management mode with door switch High condenser temperature alarm MSYF fl ag High condenser temperature alarm -SYF °C/°F 70.0 differential High condenser temperature alarm delay -SYF °C/°F High condenser temperature alarm delay -SYF Light sensor OFF time -SYF...
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Page 58: Alarms And Signals
The buzzer sounds if enabled by parameter H4. The alarm relay is activated if auxiliary output 1 (H1) has been assigned the alarm relay function. Note: the buzzer is not affected by the CAREL supervisory system. ir33 +030220441 - rel. 2.0 - 01.05.2006... -
Page 59: Table Of Alarms And Signals: Functions Enabled/Disabled
- n6 unchanged unchanged unchanged unchanged unchanged unchanged unchanged unchanged d1 - d6 unchanged unchanged unchanged unchanged tab. 8.c Carel reserves the right to modify or change its products without prior notice. ir33 +030220441 - rel. 2.0 - 01.05.2006... - Page 60 Agenzia / Agency: CAREL S.p.A. Via dell’Industria, 11 - 35020 Brugine - Padova (Italy) Tel. (+39) 049.9716611 - Fax (+39) 049.9716600 e-mail: carel@carel.com - www.carel.com...