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3-6

P/N 0461391A

DISPLAY & ALARM MODULES

P5

Safe-NET™

06/17/05 MPK

1

2

DRY CONTACT

GROUND

P3

RCVR

RS-485B

ANTI-SWEAT

LIGHTS

GROUND

P1

RS-485A

DEFROST

FANS

12VDC

Display Module

1

2

3

4

5

6

7

8

alarm

status

1

3

5

TXD

5VDC

PSEN

RXD

RST

GND

2

4

6

RS-485 unterminated

1

2

12VDC

GROUND

J1

NEUTRAL

90VAC - 264VAC

1

2

12VDC

RS-485B

P2

3

4

RS-485A

GROUND

1

2

N/C

5VDC

P4

3

4

SENSE

GROUND

Battery Backup with Piezo Alarm, revision 1.01

6

5

4

3

2

1

8

7

1

2

3

4

5

6

7

8

blk

ylw

brn

red

org

blu

grn

wht

1

2

3

4

5

6

7

8

1

2

3

4

5

6

7

8

1

2

1

2

1

2

blk

red

Alarm Module

DEFROST

FANS

RS-485A

12VDC

ANTI-SWEAT

COMPRESSOR

RS-485B

GROUND

COMPRESSOR

ANTI-SWEAT

GROUND

RS-485B

FANS

DEFROST

12VDC

RS-485A

GROUND

ALARM

audible alarm

(piezo)

9V Battery

Power Supply

1.25A @ 12VDC

(0459302)

T9RKE1250LCP-Y

AC power cord (0459303)

7031116F000

product

simulator

1

2

3

4

red

wht

blk

1

2

J4

1

2

Wiring Diagram for Display Module and Alarm Module

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Содержание ARL

Страница 1: ...Safe NET Technician s Manual November 2005 P N 0461391A Hussmann Corporation Bridgeton Missouri 63044 2483 U S A ...

Страница 2: ... 3 Password 3 4 Modifying Set Points 3 5 Wiring Diagram for Display Module and Alarm Module 3 6 Alarms 3 7 SEnS 3 7 noSn 3 7 dSHi 3 7 dSLo 3 7 CoM 3 8 PrHi 3 8 PrLo 3 8 Impact Multiple Coils 3 8 SC C 3 8 SC L 3 8 SC r 3 8 Door Open 3 9 MENUS Menu Presentation Conventions 4 1 Menu Navigation Overview 4 2 Time Outs 4 2 Password 4 2 Inactivity 4 2 Escape 4 2 Clear 4 3 Button Action 4 3 Display Symbol...

Страница 3: ...riptions 4 28 Clock Menu 4 29 Defrost Menu 4 30 DTYP 4 30 STOP 4 32 START 4 32 FCTL 4 33 TSET 4 34 DURA 4 35 TTYP 4 36 STAR 4 36 NDEF 4 38 Temperatures Menu 4 38 Valve Menu 4 40 CLAV 4 41 DSVR 4 41 DHVR 4 41 CSVR 4 41 CHVR 4 41 C OF 4 42 V OF 4 42 NORL 4 43 CLOSE 4 43 OPEN 4 43 SREF 4 44 VTYP 4 44 VPOS 4 45 Display Default 4 46 Dimmer 4 46 WARRANTY iv P N 0461391A CONTENTS Continued ...

Страница 4: ...y systems to enable communication with a PC Temperature Monitoring Safe NET lets you monitor temperatures in up to 10 different areas of each case discharge air return air product temperatures coil inlet and outlet temperatures etc Temperature readings are logged for later review The system sends an alarm if temperatures exceed predefined limits COMPONENTS All components of the Safe NET system dis...

Страница 5: ... the display module This eliminates the need for separate wiring Sensors in each case are harnessed together to a single wire leading to the display module Sensors are designed for rugged durability Should a sensor fail it can be replaced O Op pt ti io on na al l Wireless Hand held Controller and or PC Control The wireless controller communicates with the display unit through an infrared sensor Th...

Страница 6: ...n StUP CLOC DEFr tEM VALv DiSP and cycles back to StUP Press the SELECT button until you are in the proper menu Once in the proper menu press the UP or DOWN button to enter the menu and to scroll through the menu Once at the menu item that you want press the SELECT button until the item flashes between the value and the title You may have to press the SELECT button more than once to get the item t...

Страница 7: ...ides battery back up power to the display module during loss of A C power The display module communicates with the alarm module via a 2 wire cable Additionally the alarm module is equipped with a beeper to provide audible notification of alarms OPERATION Normal During normal operating conditions the product simulator temperature is displayed The GREEN LED on the alarm module is lighted as shown in...

Страница 8: ...layed Product temperature alarms can be generated during external power loss The audible alarm is active only for product temperature alarms Low Battery During normal operating conditions the alarm module monitors battery condition The display shows bAtt when the battery becomes low on power and the beeper on the alarm board beeps every 2 minutes to indicate a low battery condition The low battery...

Страница 9: ... for up to 6 hours The initial condition of the battery determines the length of time Operation of Safe NET is compromised once the battery runs low Product integrity cannot be ensured until power is restored and the battery is replaced MODIFYING ARL ARV SETTINGS The Safe NET display module stores alarm set points and alarm delay times for monitoring ARL and ARV cases The suggested default set poi...

Страница 10: ...LECT button to modify and save the parameter once the UP or DOWN button is pressed The display cycles between menu item and edited menu value once the edited value is entered using the SELECT button The display returns to showing the product simulator temperature if no button is pressed for 12 seconds once the menu is displayed User must scroll through the menus using the SELECT button to return t...

Страница 11: ...between PrHi and the current product high alarm set point To change the product alarm delay press the UP button until display cycles between P dL and the current product alarm delay Once the desired menu item is displayed press SELECT button The display cycles between the corresponding menu item and the VALUE Press the UP button to increment the value or the DOWN button to decrement the value The ...

Страница 12: ...VDC P4 3 4 SENSE GROUND Battery Backup with Piezo Alarm revision 1 01 6 5 4 3 2 1 8 7 1 2 3 4 5 6 7 8 blk ylw brn red org blu grn wht 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 1 2 1 2 blk red Alarm Module DEFROST FANS RS 485A 12VDC ANTI SWEAT COMPRESSOR RS 485B GROUND COMPRESSOR ANTI SWEAT GROUND RS 485B FANS DEFROST 12VDC RS 485A GROUND ALARM audible alarm piezo 9V Battery Power Supply 1 25A 12VDC 0459...

Страница 13: ...s automatically when the control is able to read the sensors This may be caused by a sensor being disconnected or shorted This alarm clears automatically when the control is able to read the sensors DischargeAir HighAlarm dSHi This alarm is generated when the average discharge air temperature in the case over the programmed alarm delay time is higher than the HighAlarm value stored in the control ...

Страница 14: ...ge is above high alarm set point for product alarm delay time THE PRHI AND PRLO ALARMS ARE AVAILABLE ONLY IF PRODUCT SENSORS ARE INSTALLED Product Low TemperatureAlarm PrLo This alarm will be generated if the product simulator average is below low alarm set point for product alarm delay time Sectional Faults for Medium Temperature Impact Cases with Multiple Coils A section of the modular coil is a...

Страница 15: ... is generated when the door is kept open for more than 2 minutes and will be cleared when the door is closed The display alternates two words cLoS and door until the door is closed Door Open If the doors are left open for more than 5 minutes even after the alarm the fans are turned back on 3 9 G P N 0461391A Hussmann Corporation Bridgeton Missouri 63044 2483 U S A Safe NET ...

Страница 16: ...es DOWN arrow or button press Denotes circular menu navigation Denotes menu item or value on display UP arrow or button press UP or DOWN arrow or button may be used ENTER Key or SELECT Button Press Automatic Menu Navigation 4 1 MENUS P N 0461391A Hussmann Corporation Bridgeton Missouri 63044 2483 U S A Safe NET DSPN Value ...

Страница 17: ... subsequent values require modification the PASSWORD must be re entered Inactivity Anytime the display is moved from the default display whether a PASSWORD has been entered or values and settings are simply being viewed and not modified the display will revert to the default display after 10 seconds This occurs if no key is pressed on the Hand Held device or button on the Safe NET Display module I...

Страница 18: ... to the initial available selection BUTTONACTION This photo identifies the buttons and the corresponding action on the Safe NET Display Module This photo identifies the buttons and the corresponding actions and alternate actions on the Safe NET Hand Held Controller 4 3 P N 0461391A Hussmann Corporation Bridgeton Missouri 63044 2483 U S A Safe NET Safe NET Hand Held Controller SELECT Button UP Butt...

Страница 19: ...DISPLAY SYMBOL IDENTIFICATION 4 4 P N 0461391A MENUS 1 2 3 4 5 6 7 8 9 0 h i J k L M n o P q r S t U v W w x y z A b C c d E F G g H Not Used Not Used Not Used Not Used Not Used Not Used ...

Страница 20: ...vel menus submenus actions and definitions are discussed in detail in the following sections SELECT ButtonAction The SELECT button on the Safe NET display module performs two functions as follows 1 When the Default Display is shown on the Safe NET display the SELECT button navigates through the top level menus in sequence Each consecutive press of the SELECT button will advance to the next top lev...

Страница 21: ... submenu editing the submenu items will be allowed as described in the following sections After a submenu has been entered with the UP or DOWN buttons the SELECT button functions as an enter key to select submenu items for modification and to confirm new submenu item values after modification via the UP or DOWN buttons After a submenu has been entered using the UP or DOWN buttons the UP DOWN butto...

Страница 22: ...ayed the Safe NET display will cycle between the menu item and its current value To edit the value of the currently displayed menu item with the value displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display The value will begin to flash Use the UP DOWN arrows or buttons to increment decrement the selected value Once the desired value is displayed flashing...

Страница 23: ...page PASSWORD PROTECTION Parameters that are critical to proper equipment performance cannot be modified until a numeric password is entered into the Safe NET display module This prevents accidental or malicious changes in the Safe NET system from occurring Entering the password is done in the SETUP menu At the top of the SETUP menu press the UP arrow on the Hand Held device or the UP button on th...

Страница 24: ...nt is the control point when the Safe NET system is configured to provide temperature control of the refrigerated fixture The configurable range of the HIGH and LOW alarm set points is centered around this parameter s settings When the Safe NET system is applied as a temperature monitoring device only this set point has no effect other than limiting the range of the HIGH and LOW alarm set points S...

Страница 25: ...rsonnel must have the option of changing the operating set point of the refrigerated fixture While PSEN allows easy modification of the operating set point andTOD clock no other operational settings can be modified without entering a password Setting this parameter is done in the SETUP menu After navigating to the PSEN sub menu item the display will cycle between PSEN and the current setting While...

Страница 26: ...T control module Accordingly the Safe NET control module must be assigned a unique address in order to send and receive alarm and control messages Setting this parameter is done in the SETUP menu After navigating to the CNTN sub menu item the display will cycle between CNTN and the current set point While the set point is being displayed press ENTER on the Hand Held device or press the SELECT butt...

Страница 27: ...tem the display will cycle between DSPN and the current address setting While the address value is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display m...

Страница 28: ...to locate and identify the attached sensors Subsequent to a reset action the number of sensors detected is displayed here The number of sensors is stored in NV memory and is continuously compared to the number of responding sensors In this way failed or additional sensors are detected Setting viewing this parameter is done in the SETUP menu After navigating to the NSEN sub menu item the display wi...

Страница 29: ... optional Relay Board component that when attached allows the Safe NET display board to control up to four outputs The controlled outputs are assigned using the SETUP MENU The possible controlled output devices are 1 Compressor CMP 2 Evaporator Fans FANS 3 Defrost Heaters DHTR 4 Anti Sweat Heater ANTI The Safe NET system by design supports four control outputs Since not all possible controlled ite...

Страница 30: ...ET display module presents temperature information The Safe NET display module is capable of displaying either degrees Fahrenheit or degrees Celsius Setting this parameter is done in the SETUP menu After navigating to the DEGR sub menu item the display will cycle between DEGR and the current setting While the setting is being displayed press ENTER on the Hand Held device or press the SELECT button...

Страница 31: ... is possible with 0 OFF CONTINUOUSLY to 100 CONTINUOUSLY ON Adjusting this parameter can improve energy consumption However a setting of sufficient ON time is required to prevent condensation from appearing on the fixture frame Setting this parameter is done in the SETUP menu After navigating to the DUTY sub menu item the display will cycle between DUTY and the current setting While the setting is...

Страница 32: ...he expense of product integrity Typically this setting is at user discretion Setting this parameter is done in the SETUP menu After navigating to the DIFF sub menu item the display will cycle between DIFF and the current setting While the setting is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When the S...

Страница 33: ...navigating to the FSET sub menu item the display will cycle between FSET and the current setting While the setting is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the...

Страница 34: ... the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to change the setting Once the desired setting is displayed press the ENTER key on the Hand Held device or the SELECT butto...

Страница 35: ...e or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decrement the value to the desired setting Once the desired setting is displayed press the ENTER key on the Hand Held device or...

Страница 36: ...arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decrement the value to the desired set point Once the desired set point is displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between PRHI and the new value Note The HIG...

Страница 37: ...odule begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decrement the value to the desired set point Once the desired set point is displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to ...

Страница 38: ... display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decrement the value to the desired setting Once the desired setting is displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display m...

Страница 39: ...ule begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decrement the value to the desired set point Once the desired set point is displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cy...

Страница 40: ... use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decrement the value to the desired set point Once the desired set point is displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between LOW and the new...

Страница 41: ...sub menu item the display will cycle between INPT and the current set point While the set point is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display m...

Страница 42: ...arameters from errant modification To change the case type Navigate to the CASE menu Press the UP or DOWN arrows on the Hand Held device or the UP DOWN buttons on the Safe NET display module until NONE is displayed Press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module Again use the UP DOWN keys or buttons to navigate to the desired case Press the ENTER key...

Страница 43: ...4 28 P N 0461391A MENUS ...

Страница 44: ...ting of the minutes With the Safe NET display module flashing the minutes value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decrement the minutes to the desired value Press the ENTER key or SELECT button to store the new minutes value and begin editing the hour value With the Safe NET display module flashing the hour v...

Страница 45: ...duling The Safe NET system is capable of controlling six types of defrost OffC DET Mod ELE2 GAS and ELE1 1 OffC Off Cycle During off cycle defrost refrigeration to the fixture is stopped by either cycling off the compressor if so equipped shutting off the liquid line solenoid valve shutting off the suction stop solenoid or closing the EEPR if so equipped Termination of the defrost cycle can be con...

Страница 46: ...stand alone operation of low temperature units Setting the DTYP parameter is done in the DEFROST menu After navigating to the DEFROST submenu item the display will cycle between DTYP and the current setting While the setting is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module...

Страница 47: ...cording to the programmed terminate sequence START To initiate a defrost cycle navigate to the DEFROST submenu item The display will show STRT While STRT is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module This will initiate the defrost cycle and cause the display module to initiate a defrost cycle according to the programmed defrost seq...

Страница 48: ...rameter is done in the DEFROST menu After navigating to the FCTL submenu the display will cycle between FCTL and the current setting While the setting is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held ...

Страница 49: ...ce or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to change the setting Once the desired setting is displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET d...

Страница 50: ...y will cycle between DURA and the current setting While the setting is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decrem...

Страница 51: ... on the Safe NET display module to change the setting Once the desired setting is displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between TTYP and the new value Note The sensed input selected for defrost termination must be installed and defrost termination set toTSEN fo...

Страница 52: ...y module to increment or decrement the value to the desired setting Press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module a second time to allow editing of the hours value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decre...

Страница 53: ...ST menu After navigating to the NDEF submenu item the display will cycle between NDEF and the current setting While the setting is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of this value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN ...

Страница 54: ...Sensor TSNC CenterTermination Sensor TSNR RightTermination Sensor DSCL DischargeAir Left DSCC DischargeAir Center DSCR DischargeAir Right RETR ReturnAir Right RETC ReturnAir Center RETL ReturnAir Left PRDR Product Right PRDC Product Center PRDL Product Left ANTI Anti sweat Heater temp PRES LO 0 200 PSI TEMP LO 0 200PSI liquid temp PRES HI 0 500 PSI TEMP HI 0 500 PSI liquid temp Controlled loadVolt...

Страница 55: ...module properly connected to the compressor contactor solenoids etc is required for temperature regulating device control functions See section on Safe NET wiring for proper equipment techniques and safety considerations Note Changing these parameters as well as performing maintenance functions requires that a valid PASSWORD be entered first The section describing the procedure for entering the PA...

Страница 56: ...s required If no data is available or communication between the Safe NET display module s and the Safe NET control module has failed will be displayed The value is updated at 5 second intervals from the Safe NET control module DSVR The Safe NET display module software version The value is not user changeable so a PASSWORD isn t needed DHVR Safe NET display module hardware version The value is not ...

Страница 57: ...e UP DOWN buttons on the Safe NET display module to increment or decrement the value to the desired setting Once the desired setting is displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between C OF and the new value Note Incorrect settings in this value will result in err...

Страница 58: ...will result in erroneous current readings The unit must be reset for the new values to take effect NORL Use this menu item to return to normal control after a force open or force close function has been performed on an EER or EEXP This maintenance function requires that a valid PASSWORD be entered prior to pressing the ENTER key on the Hand held Device or SELECT button on the Safe NET display modu...

Страница 59: ...or solenoids etc and or a Safe NET control module is required for temperature regulating device control functions See section on Safe NET wiring for proper equipment techniques and safety considerations 0 10 This control method utilizes a 0 10VDC output The 10VDC output is supplied from the control device and is optically isolated from the Safe NET power supply A Safe NET control module is require...

Страница 60: ... performing ON OFF control independent of a Safe NET control module The Safe NET display module can exist on a network as a sole entity receiving command from a master device It controls all functions of the fixture if so equipped defrost lighting dual temperature operation temperature control alarming etc OnOff Safe NET display module acting as user I O for a Safe NET control module The Safe NET ...

Страница 61: ...ng is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to change the setting Once the desired setting is displayed press the ENTER key on the ...

Страница 62: ...ty information or other support contact your Hussmann representative Please include the model and serial number of the product Hussmann Corporation Corporate Headquarters Bridgeton Missouri U S A 63044 2483 01 July 2005 ...

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