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Alarm Conditions (Safety Modes)

MultiFlex CUB-II and CUB-TD Software Overview • 19

6.5. Alarm Conditions (Safety

Modes)

When certain conditions are detected, the

CUB-II and CUB-TD operate in a special mode
(called

Safety mode

) in order to correct the con-

dition or to prevent equipment, product, and/or
energy loss. Safety mode alarm conditions can
be reset two different ways:

1. Resetting the alarm in the E2 or Ein-

stein Alarm Log will reset all active
Safety mode alarms.

2. Defining an alarm reset input on the

CUB-II, and then manually closing
the input will reset all active Safety
mode alarms.

6.5.1. High Discharge Trip Safety

Mode

The CUB-II will always try to prevent the

condensing unit’s discharge pressure from rising
above a user-defined setpoint, called the

dis-

charge trip setpoint

. If the discharge pressure

ever rises above this setpoint, the CUB will enter
the High Discharge Trip Safety mode. This will
lock the compressor OFF, and cause the Circuit
State of the CUB to display

Rack Fail

in the E2

or Einstein and HHT status screens.

Resetting a High Discharge Trip

Resetting a high discharge trip safety mode

can be done manually by closing the Alarm
Reset input on the CUB-II or by resetting the
High Discharge Trip alarm in the E2 or Einstein
alarm log.

You can also program the CUB-II to auto-

reset when the discharge pressure falls below the
discharge trip setpoint

minus

a user-defined dif-

ferential. This ensures the pressure will drop
well below the trip setpoint before re-starting the
compressor.

When using auto-reset, you may also set a

maximum number of auto-reset attempts. The
CUB will only attempt an auto-reset if it has not
already auto-reset the CUB a number of times in
the past hour equal to the user-defined maxi-
mum. If CUB’s auto-reset maximum has already
been met, it will remain in High Discharge Trip
mode until it is manually reset.

6.5.2. Compressor Proof Fail Safety

Mode

If the CUB-II has a Compressor Proof input

configured, it can use this input to verify the
compressor is operating properly. Under normal
conditions, the CUB-II will expect the proof
input to mirror the state of the compressor at all
times (i.e., proof registers ACTIVE when the
compressor is ACTIVE, and INACTIVE when
the compressor is INACTIVE). If the proof input
does not mirror the value of the compressor state
for a period of time longer than a user-defined
period, the CUB-II will enter Proof Fail mode.

In Proof Fail mode, you may either choose to

program the CUB-II to shut down the compres-
sor until the failure is cleared, or to keep
attempting to activate/deactivate the compressor
as normal.

Figure 6-1 - Example of Zone Temperature Control Setup

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Содержание MultiFlex CUB-II

Страница 1: ...026 1705 Rev 7 06 APR 2010 MultiFlex Condensing Unit Board CUB II and CUB TD Installation and Operation Manual ...

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Страница 3: ...ny inaccuracies that may be contained herein In no event will Computer Process Controls Inc be liable for any direct indirect special incidental or consequential damages resulting from any defect or omission in this manual even if advised of the possibility of such damages In the interest of continued product development Com puter Process Controls Inc reserves the right to make improvements to thi...

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Страница 6: ...Setting the Terminating Resistance Jumpers 8 4 CUB INPUT AND OUTPUT SETUP 9 4 1 THE INPUTS 9 4 1 1 Connecting Sensors to the MultiFlex CUB 9 4 1 1 1 Wiring 9 4 1 1 2 Sensor Wiring Types 9 4 1 1 3 Input Type Dip Switches 9 4 1 2 Power Connection 10 4 1 2 1 Current Ratings for On Board Power Sources 10 4 1 2 2 Powering Sensors Requiring 24VAC Off the Power Transformer 10 4 1 3 MultiFlex CUB Fixed In...

Страница 7: ... 7 1 ADDING DELETING A CUB 22 7 1 1 Adding a CUB 22 7 1 2 Deleting a CUB 23 7 2 VIEWING THE CUB STATUS SCREEN 23 7 2 1 Inputs and Setpoints 24 7 2 2 Sensor Control 25 7 2 3 Outputs and Operational States 25 7 2 4 Defrost 26 7 2 5 KW Usage 26 7 3 PROGRAMMING THE CUB USING THE E2 OR EINSTEIN FRONT PANEL 26 7 3 1 Screen 1 General 27 7 3 2 Screen 2 Setpoints 28 7 3 2 1 Temperature Differential TD 30 7...

Страница 8: ...TD Max 49 8 2 4 4 Comb Method 49 8 2 4 5 Min OFF ON Times 50 8 2 4 6 Condenser SPs 51 8 2 4 7 Condenser Fan 1 Setpoints 51 8 2 4 8 Condenser Fan 2 Setpoints 51 8 2 5 Alarm Setpoints Screens 52 8 2 5 1 Case Hi and Lo Temp 52 8 2 5 2 Phase Fail 52 8 2 5 3 Shut Down On Proof 52 8 2 5 4 Proof Failure 53 8 2 5 5 Oil Restart Delay 53 8 2 5 6 Digital Oil Failure 53 8 2 5 7 High Discharge Alarm 54 8 2 5 8...

Страница 9: ...MultiFlex CUB II and CUB TD I O Guide Table of Contents ix 8 2 10 4 Sensor Control Screen 4 Alarm Priority Comb Method 60 APPENDIX A TD QUICK START 62 APPENDIX B CASE TYPE DEFAULTS 68 ...

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Страница 11: ...s screens reporting alarms and recording logs The CUB II and CUB TD may be configured either with a CPC Hand Held Terminal HHT or through the E2 or Einstein front panel 1 1 The MultiFlex CUB II The MultiFlex CUB II controllers are capa ble of handling all aspects of single condensing unit control including compressors condensers refrigeration and defrost using on board I O and control algorithms T...

Страница 12: ...e boards be located adjacent to the E2 or Einstein I O boards may be mounted without an enclosure but they should be mounted in a location that is not easily accessi ble to avoid tampering or damage 2 1 Snap Track Installation MultiFlex boards not supplied in a custom panel or other enclosure are supplied with a snap track for easy installation The insulation sheet and I O board must be removed fr...

Страница 13: ... the MultiFlex CUB Board CPC supplies a wide variety of 24VAC trans formers with varying sizes and either with or without center taps Table 2 1 shows the trans former sizes and whether they are center tapped or non center tapped Figure 2 3 Exploded View MultiFlex CUB II WARNING All models of MultiFlex require a 24VAC Class 2 input power source The Multi Flex CUB II requires the power source to be ...

Страница 14: ...ly all MultiFlex boards shipped after November 1 2002 or an old style MultiFlex board all MultiFlex boards shipped before November 1 2002 A new style MultiFlex board has a green power LED located next to the 24VAC connec tion terminal in the upper right corner of the cir cuit board see Figure 2 4 for reference If there is a green power LED next to the connector your MultiFlex is a new style Multi ...

Страница 15: ...rds No Isolated Power Supply Like the new style MultiFlex board the old style MultiFlex board can be connected to any of the center tapped transformers mentioned in Table 2 2 provided you observe the following three rules Rule 1 Ground the 0V terminal on the old style MultiFlex board to an earth ground Do not connect the center tap of the trans former to the 0V terminal Rule 2 Do not power an old ...

Страница 16: ...re length from the transformer and the number of boards connected to the same wire determines the type wire gauge used In most cases the distance between the I O boards and the transformer that supplies power to them is not enough to be concerned with But it is very important not exceed this maximum wire length or the boards will malfunction Use these formulas to determine if the wire gauge you ar...

Страница 17: ...utput I O Network con nects all input and output communication boards together in a single open communications loop This loop or daisy chain connects the E2 Einstein or REFLECS to multiple input and out put communication boards and terminates at the last input or output board on the network A dia gram of this network arrangement is shown in Figure 3 1 3 1 2 Network ID Numbers Each device on an RS4...

Страница 18: ...et the baud rate To communicate at 9600 baud set switch 6 UP and 7 DOWN For 19200 baud set switch 6 DOWN and 7 UP Refer to Figure 3 2 for a visual look at how the switches must be set 3 1 4 Setting the Terminating Resis tance Jumpers All MultiFlex boards and other RS485 devices have a set of terminating resistance jumpers one jumper for each wire lead These jumpers are labeled JP2 JP3 and JP4 on t...

Страница 19: ...conductor at least 22 GA wire Belden 8761 or equivalent All Pressure Transducers Humidity Sensors and Re frigeration Transducers Pressure and refrigeration transducers and humidity sensors are to be wired with shielded 3 conductor at least 22 GA wire Belden 8771 or equivalent Dewpoint and Light Level Sensors These sensors are to be wired with shielded 4 conductor at least 22 GA wire Belden 8729 or...

Страница 20: ...such as CPC s Dewpoint Probe If the output signal is not isolated from the 24VAC input you must use a separate transformer 4 1 3 MultiFlex CUB Fixed Input Lo cations The MultiFlex CUB supports a large number of different types of input sources that might be found on a single condensing unit s pressure control condenser control or refrigeration con trol systems Because input locations are speci fie...

Страница 21: ...corresponds to an output on the board switch 1 output 1 etc Decision 2 is made either by setting a fail safe jumper for the MultiFlex CUB or by wir ing the load to either the N O or N C terminals on the Form C contact for the MultiFlex 16I8O Table 4 2 shows how the fail safe switch and Form C contacts should be configured based on how you want the output to perform during both normal operation and...

Страница 22: ...ht be found on a single condensing unit s pressure control condenser control or refrigeration con trol systems Because output locations are speci fied by the user in the system software you can connect outputs from the condensing unit to any point on the CUB However to make setup eas ier the CUB has assigned default sensor loca tions to a few of the inputs on the board Table 4 1 lists the inputs w...

Страница 23: ...receives a message If the MultiFlex is connected to the network and set up to communicate with the controller you should see these lights blinking regularly If they do not there may be a problem with the net work 5 3 Code A and Code B LEDs All MultiFlex models except the MultiFlex 16 have two LEDs labeled Code A and Code B These LEDs indicate failure conditions When these LEDs are OFF there are no...

Страница 24: ... Battery jump er located at the bottom right of the board just un derneath the output plug in board If this jumper is set to the DOWN position move it to the UP posi tion This will enable the battery and should cause the Code B light to stop flashing 5 4 Relay Output LEDs Each relay output point on a MultiFlex has an indicator LED that shows the status of the output This LED is lit to show the out...

Страница 25: ...int plus one half the deadband the com pressor will turn ON and will remain ON until the case temperature falls below the setpoint minus one half the deadband 6 1 2 1 Pump Down If the CUB II is using the Temperature strat egy it also has the option of using a special Pump Down mode to pump refrigerant out of the evaporator coil when going from Refrigeration to Idle or from Refrigeration to Defrost...

Страница 26: ... probe failure all fan stages will be staged on Drop Leg Temperature Above Maximum Drop Leg Setpoint If the drop leg temperature DropLeg Temp rises above the maximum drop leg temperature setpoint DropLeg Max an increase will be called for until DropLeg Temp drops below DropLeg Max This protects against the possibil ity of the DropLeg Temp rising too high as a result of high plenum temperature Drop...

Страница 27: ...ve a programmed suction pres sure termination setpoint Defrost cycles may be programmed with a minimum defrost time and a maximum defrost time 6 4 Sensor Control The CUB II provides for up to two generic Cut In Cut Out control algorithms for use in con trolling subsystems related to the condensing unit Each sensor control application consists of an input or a set of inputs combined into a sin gle ...

Страница 28: ...om Temp sensor control input E2 or Einstein will read this value into Global Data as SPARE ANLG02 All other CUB IIs that are assigned to zone 2 will read SPARE ANLG02 as the motor room temp 6 4 2 1 Exhaust Fan Control The CUB II in each zone that is reading the motor room temp may also use the input to per form Cut In Cut Out control of a single output This can drive an exhaust fan or similar HVAC...

Страница 29: ...arm in the E2 or Einstein alarm log You can also program the CUB II to auto reset when the discharge pressure falls below the discharge trip setpoint minus a user defined dif ferential This ensures the pressure will drop well below the trip setpoint before re starting the compressor When using auto reset you may also set a maximum number of auto reset attempts The CUB will only attempt an auto res...

Страница 30: ...an auto reset if it has not already auto reset the CUB II a number of times in the past hour equal to the user defined maximum If CUB II s auto reset maximum has already been met it will remain in Oil Fail mode until it is manually reset 6 5 4 Phase Fail Mode If a phase fail checking device is present on site the CUB II can be programmed to shut down multiple phase devices it controls To enable ph...

Страница 31: ...ystems so that they may be cleaned or serviced The CUB II will respond to a contact closure of a clean switch by locking the compressor defrost and case fans OFF for as long as the switch is active The CUB II may be programmed with a fail safe time to prevent the case from being in clean mode for too long If this fail safe time is passed the CUB II will resume normal control regard less of the pos...

Страница 32: ...et up the CUBs 7 1 Adding Deleting a CUB 7 1 1 Adding a CUB Before an E2 or Einstein will communicate with a CUB it must be added as an I O board This task is performed in the Controller Setup screen To access this screen If you have properly set up all MultiFlex CUB boards on this E2 or Einstein s I O Network you can go view the status of the I O Network press F10 or the key to go back to the men...

Страница 33: ... the Einstein 2 Press to access the System Configuration Menu 3 Press Network Sta tus Setup 4 Press Connected I O Boards Controllers 5 Change the number of CUB boards in the CUB Controllers field to the correct number of boards 1 Log in to the E2 2 Press the MENU key 3 Press to navigate to the System Configuration Menu 4 Press to navigate to the Network Status Setup menu 5 Press Connected I O Boar...

Страница 34: ...programmed alarm time Control Type For reference Control Type shows whether this CUB is controlling the compressor based on the suction pressure or case temperature Control Temp If you are using the Temperature strategy to control the compressor the Control Temp field will show the current temperature value You can compare this value to the temperature setpoint below it to determine if the compres...

Страница 35: ... abled the two types are Idle Pump Down and De frost Pump Down Drip The CUB is in an inactive state immediately after Defrost that allows moisture to drip from the evaporator coils Refrigeration will start immediate ly after the Drip stage is complete Cmp Delay The CUB is in a user programmed de lay period between the opening of the refrigeration solenoid and the activation of the compressor This ...

Страница 36: ...Term Act State appears when Defrost Term Type is set to Digital Blank the field is blank when Defrost Term Type is set to Time Time will appear in the Defrost Term Type field Defr Term setpt appears when the Defrost Term Type is set to Suction Pressure This field will con tain the suction pressure termination setpoint in Pressure During defrost you can compare this set point to the Suction press i...

Страница 37: ...en tial strategy TD Use the Look Up Table for Einstein for E2 to select a strategy Refr Type The Refrigerant Type field is where the type of refrigerant being used in the condensing unit system must be specified The CUB uses the Refrigerant Type field to automatically calcu late saturation suction temperature Use the Look Up Table for Einstein for E2 to select a refrigerant type Oil Protection If ...

Страница 38: ...Network Time This field specifies whether you want the CUB to keep its own time clock synchronized with its parent controller s clock Set this field to ENABLE if you want CUB to synchronize its time with E2 or Einstein or DISABLE if you don t want time synchronization 7 3 2 Screen 2 Setpoints The Setpoints screen is where all setpoints related to compressor and condenser fan control are entered Th...

Страница 39: ...emperature input value triggers a change by moving above or below the deadband range Refer to Section 6 1 2 Case Temperature Compressor Control for more on how the tem perature setpoint works Min ON time The Minimum ON Time is the amount of time the compressor must remain ON after acti vation before being allowed to turn OFF Enter the desired minimum ON time in hours min utes seconds H MM SS forma...

Страница 40: ...oint is the maximum allowable value of the drop leg temperature If the drop leg temperature rises above this set point the CUB will cycle condenser fans ON regardless of the value of the TD Drop Leg Min The Drop Leg Min setpoint is the minimum allowable value of the drop leg temperature If the drop leg temperature falls below this set point the CUB will cycle condenser fans OFF regardless of the v...

Страница 41: ... Global Data the value of the motor room temperature provided there is a CUB in the zone with a motor room temperature sensor This input is automatically configured and is primarily displayed in this screen as a reference REMOTE INPUT The Remote Input is passed to any of the CUB s outputs that are set up as Remote type outputs When this input is tied to a digital out put from another E2 or Einstei...

Страница 42: ...g Refer to your KW transducer s installation instructions Linear 1 and Linear 2 Fields If you wish to use a sensor type not directly supported by the CUB and the sensor type has an output voltage between 0 and 5 volts DC you may assign this sensor one of the two Linear sensor types Linear 1 and Linear 2 You may then connect the sensor to a point on the CUB and designate the point as sensor type Li...

Страница 43: ...choose a sensor type move the cursor into the Type field and use the Look Up Table press for Einstein for E2 Name Description Suct Press Suction pressure transducer Discharge Press Discharge pressure transducer Oil Press Analog oil pressure transducer Case 1 Temp Case 6 Temp Case temperature sensors 1 through 6 Dropleg Temp Drop Leg Temp for TD condenser control Defr Term Temp Analog termination t...

Страница 44: ...re sensor Klixon Term Temp Analog temperature sensor Defrost will terminate when the temperature is above the ter mination temp setpoint Time Defrost will terminate when defrost time ex pires this is the same as no termination Min Case Temp Instead of using a dedicated Term Temp sensor the CUB will use the lowest value among all case temperature sensors as the de frost termination temperature valu...

Страница 45: ...s will be OFF When the drip time has elapsed refrigeration will resume in the case circuit Enter the desired drip time in minutes in this field Number of Defrost Schedules and Defrost Time The Number of Defrost Schedules sets the number of daily defrosts for this circuit This field is automatically filled in for you when you select a case type in the Case Type field Enter a number from 1 through 1...

Страница 46: ...CUB oil pressure input CKT STATE The current CUB refrigeration state The options are Idle Refrigeration Defrost Drip Pump Down Wash Door Fail or Delay CASE TEMP 1 6 The six CASE TEMP outputs are equal to the values of each of the six possible CUB case temperature inputs CASE TEMP 1 corresponds to CUB s case temp 1 etc CURRENT KW The current value of the CUB KW input BOARD STATUS The online or offl...

Страница 47: ...te output 7 3 8 Screen 8 CUB Outputs This screen configures the functions of the eight relay outputs on the MultiFlex CUB By default the compressor defrost condenser fan 1 and alarm outputs are pre configured to points 1 2 3 and 8 respectively You may assign other outputs to the remaining relay output points or change the default configuration using this screen The Outputs screen has eight numbere...

Страница 48: ...ore than one input to this Sensor Con trol application When multiple inputs are being used they will be combined into a single input value using the method chosen in this field If you are not using more than one input set the Comb Mthd field to None Cut In The Cut In setpoint is the point at which the sensor control output will transition from OFF to ON Refer to Section 6 4 1 How Cut In Cut Out Co...

Страница 49: ...rent E2 or Einstein If you do not wish to generate a low alarm leave this field set to NONE Alarm Lo Delay Alarm Lo Delay is the amount of time the sensor control input must remain below the Alarm Lo setpoint before a low alarm will be generated Enter the desired alarm delay in hours minutes seconds H MM SS Alarm Pri Alarm Priority sets the alarm priority level of the high and low alarms generated...

Страница 50: ...ave occurred the CUB will consider the compressor failed and will not attempt another reset Enter a number of retries from 0 2 Reset Delay The Reset Delay is the amount of time the CUB will wait between retry attempts Enter the desired reset delay in hours minutes seconds H MM SS format Oil Xducer Run This field determines whether the CUB will continue to attempt to control the compressor as norma...

Страница 51: ...ssure in this field 7 3 10 4 Compressor Proof Alarms If a digital compressor proof checking device is available the CUB can alarm on com pressor failure and attempt to auto reset the compressor Comp Proof Dly The Compressor Proof Delay is the amount of time a proof checking device must read FAIL before the CUB will consider the compressor to have failed Enter the desired delay in hours minutes sec...

Страница 52: ...ins open longer than the Door Switch Time the CUB will assume the door is stuck open and will restart refrigeration to prevent food loss Enter the desired fail safe time in hours minutes H MM format Door Sw Alm Tm After the door has been opened the CUB records how long the door remains open If it remains open longer than the Door Switch Alarm Time the CUB will generate a door open alarm Enter the ...

Страница 53: ...ction Temp High Setpoint before an alarm will be generated The Suction Temp Low Delay is the amount of time the suction temperature must be below the Suction Temp Low Setpoint before an alarm will be generated Enter the desired delay in hours minutes H MM format Suct Temp Low The Suction Temp Low Setpoint is the suc tion temperature that when fallen below will cause a low suction temperature alarm...

Страница 54: ...s per screen To toggle automatic scrolling OFF and ON press the Point key on the Hand Held Terminal You may also scroll through the status screens manually using the UP ARROW and DOWN ARROW keys 8 1 1 Pressure Status The Pressure Status screen shows the values of the suction pressure oil pressure and dis charge pressure transducers 8 1 2 Case Temp Status The Case Temp Status screen shows the cur r...

Страница 55: ...circuit 8 1 8 Refrigeration Control Status This screen shows the setpoints and control values for refrigeration control using both the Pressure and the Temperature control strategies If you are controlling by Pressure Con trolBy Press the values under CI CO are the Cut In Cut Out suction pressure setpoints and the value in the P field is the suction pressure If you are controlling by Temperature C...

Страница 56: ...ugh the screens Configuration Mode On any menu or configuration screen to make a selection or enter a value you must press the RIGHT ARROW key to begin Configuration mode In Configuration mode you will see a cursor shaped like an arrow pointing right Use the UP ARROW and DOWN ARROW keys to move the cursor to the field you want to change Then use the number keys to enter a value or if the field req...

Страница 57: ...ng unit If a compressor proof input is available set this field to YES If compressor proof checking will not be used for this CUB set this field to NO 8 2 3 3 Phase Phase Enable The PhaseEnable field specifies whether a phase loss detection device is present for the condensing unit If a phase loss input is present set this field to YES If not set this field to NO Door Switch The Door Switch field ...

Страница 58: ...bserve daylight savings time The three fields in order are MONTH The month in which daylight savings time begins This should be set to APR April if fol lowing standard U S DST guidelines WEEK The week in which daylight savings time begins This should be set to 1st Week if follow ing standard U S DST guidelines or NO DLT if you do not wish to follow daylight savings time DAY The day of the week in ...

Страница 59: ...rop leg temperature sensor reading if needed to tune the individual condensing unit 8 2 4 3 TD Max TD Maximum The TD setpoint that is maintained by cycling fans ON and OFF TD Deadband The deadband forms a range of TD values equally above and below the setpoint within which the control TD value is considered to be within limits Fan On Delay This setpoint defines the amount of time in seconds that m...

Страница 60: ...nificant only if you have selected Mix in the Combination Method field This field determines what mix ratio will be used to combine temperature input 1 with input 2 The Mix strategy adds x of 1 to 100 x of 2 to yield the combined tempera ture where x is the value entered in this field 8 2 4 5 Min OFF ON Times Minimum ON Time The Minimum ON Time is the amount of time the compressor must remain ON a...

Страница 61: ...sure For TD setup see Section 8 2 4 1 Condenser Setpoints Strategy Set the type of condenser strategy that will be used to cycle fans ON and OFF Number of Fans Set the number of fans to be turned ON and OFF by the chosen strategy type The maximum number of fans that can be controlled is two 8 2 4 7 Condenser Fan 1 Setpoints The fields underneath the Condenser Fan 1 heading are where the Cut In Cut...

Страница 62: ...t this field to CLSD if the phase loss device closes its contacts on a phase failure or OPEN if it opens contacts Proof Active State The Proof Act field tells the CUB what digi tal state from the proof checking device means FAIL If set to CLSD the CUB will interpret a contact closure as FAIL If set to OPEN the CUB will interpret an open contact as FAIL Compressor Proof Delay The Compressor Proof D...

Страница 63: ...start delay in minutes seconds M SS format Oil Failure Run This field determines whether the CUB will continue to attempt to control the compressor as normal even after an oil failure has occurred If this field is set to Yes the CUB will turn the compressor output ON and OFF as normal dur ing an oil failure If set to No the CUB will turn the compressor OFF and will not reactivate it until the oil ...

Страница 64: ... reset Enter a number of retries per hour from 0 2 Comp Bypass Max Time The Compressor Bypass Max Time sets the maximum amount of time a refrigeration ON bypass will last when initiated from the E2 or Einstein If refrigeration is bypassed ON past this time the bypass will end and the CUB will resume regular control 8 2 5 9 Door Switch Door Switch Open State The Door Switch Open State specifies whe...

Страница 65: ...re sensor Defrost will terminate when the temperature is above the ter mination temp setpoint Time Defrost will terminate when defrost time ex pires this is the same as no termination Min Case Temp Instead of using a dedicated Term Temp sensor the CUB will use the lowest value among all case temperature sensors as the de frost termination temperature value Suction Pressure The suction pressure tra...

Страница 66: ...hedules sets the number of daily defrosts for this circuit This field is automatically filled in for you when you select a case type in the Case Type field Enter a number from 1 through 6 in this field 8 2 6 4 Defrost Schedule Screens 1 and 2 The twelve numbered fields in these two screens are where the defrost start times for the CUB are entered If you chose a case type in the Case Type field the...

Страница 67: ...m Temp for analog termination sensors Alarm Reset Alarm reset button or switch Door Switch Door switch Clean Switch Clean switch Disch Temp Discharge temperature SensCtrl 1 2 Input for Sensor Control modules 1 through 2 Comp Proof Compressor proof Phase Loss Phase loss checking device KW Analog KW transducer input Suct Temp Suction Temperature probe Oil Dig Digital oil pressure switch NOT USED Inp...

Страница 68: ...se one or both of the Linear 1 and Linear 2 sensor types used by the sensor control applications you must specify the volt age range of the sensor output and the range of values those voltages represent Under the Volts column enter the minimum and maximum sensor output voltages Under the Output column enter the minimum and maxi mum engineering unit values represented by the min max voltage range S...

Страница 69: ...ansition from OFF to ON Refer to Section 6 4 1 How Cut In Cut Out Control Works for further explanation S1 Cut Out and S2 Cut Out The S1 Cut Out and S2 Cut Out setpoints are the input values at which the sensor control out puts will transition from ON to OFF Refer to Section 6 4 1 How Cut In Cut Out Control Works for further explanation SnsrCntrl 1 Name SC 1 Type OAT Input Type Description Generic...

Страница 70: ...erated Enter the desired alarm delay in minutes 8 2 10 4 Sensor Control Screen 4 Alarm Priority Comb Method Alarm Priority The Alarm Priority field determines the pri ority level of the high and low level alarms gen erated by this sensor control application The priority level is used by the parent E2 or Einstein to determine how the alarm will be reported and handled Comb Method The Comb Method on...

Страница 71: ...lex CUB Hand Held Interface 61 Engineering Units DF Degrees Fahrenheit DC Degrees Celsius PSI Pounds Per Square Inch KPA Kilopascals RH Relative Humidity V Volts FTC Foot Candles LUX Light Level PPM Parts Per Million NDF Not Defined Table 8 6 Engineering Units Defined ...

Страница 72: ...temps are used they will come from Spare Analog Inputs 5 8 Global Data Setup Example One 16AI board is needed for this setup example which will be Board 1 The 16AI has Motor Room Temp 1 on Input 1 and the first plenum temp on Input 9 To begin programming the CUB TD navigate to the Global Data screen to define Global Data points Press followed by and to enter Global Data Setup If using an E2 contro...

Страница 73: ...nly Press for Look Up menu for Look Up if using an E2 5 Arrow down to SpareAnlg5 EU En gineering Units and set to DF De grees Fahrenheit Press for Look Up menu for Look Up if using an E2 6 Arrow down to SPARE ANLG5 IN and arrow right to set Board to 1 and Point to 9 Figure A 2 Global Data Setup Degrees Fahrenheit Figure A 3 Global Data Setup Board and Point Figure A 4 Global Data Setup Spare Analo...

Страница 74: ...ultiFlex CUB Status screen press and to set up In puts press from the MultiFlex CUB Status screen if using an E2 2 Press to move to the Inputs tab and set Controller Application and Output for plenum temp 3 Set Controller to the name of the Einstein that is currently being set up the controller you are setting the CUB TDs to Next set Application to GLOBAL DATA and Output to SPARE ANLG5 OUT the Spa...

Страница 75: ... to the Home screen General From the MultiFlex CUB Status screen press and to access General tab options press from the MultiFlex CUB Status screen if us ing an E2 1 Arrow down to the Num Cond Fans field and set the number of fans to be controlled This number should match the number of condenser fans set in Outputs under the CUB Outputs tab CUB Outputs on page 65 2 Arrow down to Network Alm field ...

Страница 76: ...etpoint the fans will stage OFF using Condenser Fan Off Delay 5 To set the DropLeg Offset arrow down to the Drop Leg Offset field and enter the desired number the de fault is 0 DropLeg Offset is a way of adding or subtracting an offset to the drop leg temperature sensor reading if needed in order to tune the indi vidual condensing unit 6 To set the Condenser Fan On Delay arrow down to the Cond Fan...

Страница 77: ...t the high alarm setpoint for tem perature differential arrow down to the TD High field and enter the de sired number the default is NONE 4 To set the alarm delay setpoint for drop leg temperature differential ar row down to TD Dly field and enter the desired time in hours minutes HHH MM Press to exit screen and save changes or to return to the Home screen If using an E2 press to exit and save or ...

Страница 78: ...nd Rev Air defrost types are not supported by the CUB The suggested defaults are listed under the Timed column in Table B 1 below The number to the left of the slash indicates the suggested number of defrost times per day Num Defr Scheds and the number to the right of the slash indicates the recommended defrost time length Defrost Dur Defrost Type Type Abbr Description Set Point High Alarm Low Ala...

Страница 79: ...cooler box 36 46 26 01 00 3 18 3 45 2 45 2 60 42 FHBX Fish cooler box 36 46 26 01 00 3 18 3 45 2 45 2 60 43 SVDL Service deli 32 42 22 01 00 2 16 2 45 2 60 1 40 44 PRCS Produce case 35 45 25 01 00 2 16 2 45 2 60 3 40 45 ISPR Produce case island 35 45 25 01 00 2 16 2 45 2 60 1 60 46 SALD Salad table 36 50 30 01 00 2 16 2 45 2 60 1 60 47 FLBX Flower cooler box 40 54 34 01 00 2 16 2 45 2 60 2 40 48 F...

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