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3.4.3 Changing the Configuration

To change the controller configuration:
•  Position the desired parameter (menu item) in the display.
•  Press the   key to initiate an edit session.
•  If the console is “locked” you are prompted to enter the passcode.
•  The present setting will flash on the display to indicate that you are editing the parameter. 
•  Use the   and   keys to change the value. 
•  The operation of the   and   varies depends on the type of data being editing. See the 

following sections for details.

IMPORTANT: Once you have initiated an edit session, you must end it before switching to 

another mode or invoking another function (including switching between Points A and B). An 

edit session ends when you enter a new value (using the   key) or you back out of it (using the 

 key).

3.4.4 Changing a Non-Numeric Parameter

To change a non-numeric parameter (e.g.: an alarm mask setting):
•  Position the appropriate parameter in the display.
•  Press the   key to initiate the edit session.
•  If the console is “locked” you are prompted to enter the passcode.
•  The present setting will flash on the display to indicate that you are editing the parameter. 
•  Use   or   until the desired value appears in the display.
• Pressing  saves the new value.
• Pressing  ends the edit session without altering the parameter.

3.4.5 Changing a Numeric Parameter

To change a numeric parameter (e.g.: the control setpoint):
•  Position the appropriate parameter in the display.
•  Press the   key to initiate the edit session.
•  If the console is “locked” you are prompted to enter the passcode.
•  The present value is displayed and the last (rightmost) digit blinks. 
•  The blinking digit identifies the digit that you are editing. 
•  Use   or   to set the desired value.
•  Use   or   to move to a different digit.
•  To enter a negative value, scroll the first (leftmost) digit until a “-” appears in the display. 
• Pressing  while on the last (rightmost) digit saves the new value.
• Pressing  while on the first (leftmost) digit ends the edit session without altering the 

parameter.

3.4.6 Passcode Protection

The 920 Series Dual Point Controller provides a passcode for protection of its configuration. 

You may view any portion of the configuration with the console “locked”, however, when you 

attempt to initiate an edit session by pressing  , you are prompted to enter the passcode. 

Entering the passcode is just like entering any other numeric value; see Section 3.4.5 

“Changing a Numeric Parameter”.
Once the console is “unlocked”, you may edit any configuration parameter. The console will 

automatically re-lock after approximately five minutes of keypad inactivity, or until the user 

explicitly locks it.
IMPORTANT: Setting the programmed passcode to “0” disables passcode protection.

IMPORTANT: The console does not have to be unlocked to reset alarms.

Summary of Contents for 920 Series

Page 1: ...ctions 920 SERIES HEAT TRACE CONTROLLER OPERATOR CONSOLE Firmware Versions up to and including V3 2x PROGRAMMABLE DUAL POINT HEATTRACING CONTROLLER Tx Rx A B ALARM LOCK MONITOR CONFIG STATUS ALARM OUTPUT 920 SERIES A B SHIFT BACK ENTER ...

Page 2: ...2 nVent com ...

Page 3: ... 1 Alpha Numeric Display 8 3 2 Keypad 8 3 3 LED Indicators 9 3 4 Operational Basics 9 3 4 1 Operating Modes 9 3 4 2 Menus 9 3 4 3 Changing the Configuration 10 3 4 4 Changing a Non Numeric Parameter 10 3 4 5 Changing a Numeric Parameter 10 3 4 6 Passcode Protection 10 3 4 7 Switching Between Points A and B 11 3 4 8 Quick Notes on Operation 11 Section 4 Operating Modes 12 4 1 Alarm Mode 12 4 1 1 Re...

Page 4: ...free Warranty Exclusion Disclaimer The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by the Buyer Buyer supplied software or interfacing unauthorized modification or misuse operation outside of the specifications for the product or improper installation No other warranty is expressed or implied nVent disclaims the implied warranties of merchantabil...

Page 5: ...face to the Dual Point Controller alleviating the need for a communicating device to configure the Controller The Console allows you to look at or reset alarms test or monitor the heat tracing and examine or alter the configuration The Console may be left installed permanently or may be installed temporarily for display setup during maintenance and troubleshooting Access is available for all monit...

Page 6: ...e console does not operate properly notify the nearest nVent representative If the shipping container is damaged or the cushioning material shows signs of stress notify the carrier as well as your nVent representative Keep the shipping materials for the carrier s inspection 2 3 OPERATOR SAFETY CONSIDERATIONS The 920 series operator console is suitable for use in Class 1 Division 2 Groups A B C D a...

Page 7: ...er of the Console over the top edge of the Control Module front plate Figure 2 1 Console Installation Step 1 Step 2 Hinge the bottom of the Console downwards until it is flush with the front of the Control Module Figure 2 2 Console Installation Step 2 Step 3 If the Console is to be permanently installed secure it to the Control Module using the captive screw provided It should be finger tight only...

Page 8: ...shift ALARM Toggles the console display from one control point to the other A to B or B to A When prefixed by the SHIFT key this key switches the console to the ALARM mode BACK shift MONITOR Exits the current menu or cancels the new setting when editing a parameter Moves the cursor to the left when editing an alpha numeric parameter When prefixed by the SHIFT key this key switches the console to t...

Page 9: ...LED above the MONITOR key is illuminated while in this mode Configure Invoked when you press the SHIFT key followed by CONFIG key In this mode you may examine or alter the controller configuration The LED above the CONFIG key is illuminated while in this mode 3 4 2 Menus Each of the operating modes has a list of data items associated with it For example in the Monitor mode you may view temperature...

Page 10: ...meter 3 4 5 Changing a Numeric Parameter To change a numeric parameter e g the control setpoint Position the appropriate parameter in the display Press the key to initiate the edit session If the console is locked you are prompted to enter the passcode The present value is displayed and the last rightmost digit blinks The blinking digit identifies the digit that you are editing Use or to set the d...

Page 11: ... voltage for Point B and press A B then the voltage for Point A is displayed Pressing A B again takes you back to monitoring Point B 3 4 8 Quick Notes on Operation Remember the followwing basic rules for efficient console use Use the SHIFT key followed by the appropriate function key ALARM MONITOR or CONFIG to select the operating mode Use and to move around in the menu Use to enter a new menu ent...

Page 12: ...ning a High Load Current Alarm and then select the MONITOR mode the starting point within the MONITOR menu will be the load current reading Once the MONITOR mode has been selected you may move around in the menu using and 4 1 4 Alarm Messages Table 4 1 lists sample alarms and the corresponding starting point in the MONITOR mode menu if it is invoked from the ALARM mode Sample Alarm Message Monitor...

Page 13: ...DATA Note the indicating a sub menu END Table 4 2 4 2 2 MAINTENANCE DATA Sub Menu This sub menu is used to view minimum and maximum temperatures total accumulated power hours in use and the number of hours since the last time the Controller was reset These parameters may be reset by the user For additional information refer to the 920 Series Heat Trace Controller Manual CONTROL TEMP 4 C TS 1 TEMP ...

Page 14: ... to 250 mA GFI TRIP 20 to 250 mA TS ALARMS CONFIG Note that the menu items with a trailing indicate the entry point to a sub menu OTHER ALARMS CONFIG POINT SETUP COMMON SETUP COMMUNICATIONS SETUP LOCK DATABASE only if passcode is not 0 and database is unlocked UNLOCK DATABASE only if passcode is not 0 and database is locked END Table 4 4 4 3 2 TS ALARM CONFIG Sub Menu This sub menu is used to set ...

Page 15: ...ENA or DIS HI GFI 20 to 250 mA HI GFI FILTER 0 to 12 S GFI TRIP ENA or DIS GFI TRIP 20 to 250 mA LO VOLT ENA or DIS LO VOLT 10 to 330 V LO VOLT FILTER 0 to 12 S HI VOLT ENA or DIS HI VOLT 10 to 330 V HI VOLT FILTER 0 to 12 S LO RESIST ENA or DIS LO RESIST 1 to 100 LO RESIST FILTER 0 to 12 S HI RESIST ENA or DIS HI RESIST 1 to 250 HI RESIST FILTER 0 to 12 S NOMINAL RESIST 2 00 to 2000 00 Ω only if ...

Page 16: ...SWITCH RATING 0 3 to 100 0 A only if SSR is being used CIRCUIT BREAKER 0 3 to 100 0 A only if SSR is being used MAX POWER 3 W to 33 000 W only if SSR is being used 3 PH PWR CALC YES or NO TS FAIL MODE OFF or ON TS CTL MODE TS 1 FAIL OFF ON or TS 1 FAIL TO TS 2 or TS 2 FAIL OFF ON or TS 2 FAIL TO TS 1 or AVERAGE FAIL OFF ON or AVERAGE FAIL TO GOOD or LOWEST FAIL OFF ON or LOWEST FAIL TO GOOD or EXT...

Page 17: ...D TEMPBUS or INHIBIT FLASH ALARM OUTPUT YES or NO ALARM OUTPUT N C or N O LANGUAGE ENGLISH or FRANCAIS POINT B USED YES or NO PASSCODE 0000 to 9999 only if 0 or database is unlocked SCROLL DELAY 0 07 to 0 25 S COPY CONFIG Note the indicating a sub menu END Table 4 8 4 3 5 1 COPY CONFIG Sub Menu The Copy Config sub menu is used to copy configuration parameters COPY CONFIGURATION Sub Menu DEFAULTS T...

Page 18: ...CONFIG POINT SETUP COMMON SETUP COMMUNICATIONS SETUP END COMMUNICATIONS Sub Menu PROTOCOL HTCBUS or MODBUS ASCII or MODBUS RTU HTCBUS ADDR 1 to 1 6777 215 only if PROTOCOL HTCBUS MODBUS ADDR 1 to 247 only if PROTOCOL is not HTCBUS MODBUS SUB ADDR 0 to 31 only if PROTOCOL is not HTCBUS BAUD RATE AUTO or 9600 or 4800 or 2400 or 1200 or 600 or 300 PARITY NONE or ODD or EVEN only if PROTOCOL is not HT...

Page 19: ...ould be returned to the nearest RAYCHEM Service Center for service WARNING Tampering with the 920 components without approval from nVent could result in voiding the warranty of the product SECTION 6 SPECIFICATIONS System Ratings Storage Ambient 40 to 185ºF 40 to 85ºC Approvals CSA C US Classification Cl I Div 2 Grp A B C D and Ex nA IIA IIB IIC T code T6 and Ordinary areas 920 Series Operator Cons...

Page 20: ...t to change specifications without notice Raychem IM H56902 920seriesOpConsole EN 1805 North America Tel 1 800 545 6258 Fax 1 800 527 5703 thermal info nvent com Europe Middle East Africa Tel 32 16 213 511 Fax 32 16 213 604 thermal info nvent com Asia Pacific Tel 86 21 2412 1688 Fax 86 21 5426 3167 cn thermal info nvent com Latin America Tel 1 713 868 4800 Fax 1 713 868 2333 thermal info nvent com...

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