manualshive.com logo in svg

UE 2W2D, Инструкция по установке и обслуживанию, Страница: 7 / 16

Поделиться
Скачать
UE 2W2D Скачать руководство пользователя страница 7

 

IM_ONE-01 

7

 

www.ueonline.com

NOTE: 

 For safety and security purposes, the One Series will automatically exit the Programming Mode and return to Process Display Mode if it does not detect a 

key stroke after 2 minutes. If this time-out occurs, all setting parameters will revert back to those in memory before reprogramming was initiated.

Step 2:  Entering the Programming Mode

The One Series achieves tamper-resistance using a specific key sequence in order to make program changes.  In order to enter the Programming Mode:
•  Press the        and        buttons simultaneously (the display will read "SW1");  
  You are now in the Programming Mode.

Use the Flowchart on page 13 as a guide as you step through the various commands in the Programming Mode.  In general, the        button is used for two (2) 
purposes - to move down through the Programming Mode, and to toggle or increment values in the Submenus.  The        button is used to move through the 
Submenus, and to accept changes.

Step 3:  Exiting the Programming Mode

When any of the program commands are displayed, it is possible to exit the Programming Mode by pressing both buttons              simultaneously.  For example, 
you may simply want to make a change to the Switch Mode without accessing any other commands.  After changing the Switch Mode, (SP1 is now displayed), 
press both buttons              and the display will show SAVE CHNG, providing an opportunity to Save or Discard the changes made to the Switch Mode.  This ability 
to exit the programming mode and save or discard changes occurs whenever a program command is displayed.  

NOTE: 

If two minutes elapses without a key being pressed, the program will automatically exit the Programming Mode and discard any changes that were made, 

reverting back to the previously saved settings and the Process Display mode.

Whenever the Programming Mode is entered and changes have been made to any of the program settings, a choice must be made whether to Save or Discard 
the changes.  At any program command prompt, press both keys              to display SAVE CHNG, then:
•  to Save changes, press the right button       .  NO (the default) will be displayed.  Press the left button       to toggle and       display YES. Then press both  
  buttons              to confirm, save the changes and return to the Process Display mode.
•  to Discard changes, press the right button       .  NO will be displayed.  Press both buttons              to confirm, discard the changes and return to the  
  Process Display mode.

KEY PROGRAMMING FEATURES

SWITCH MODE:

The One Series allows the switch output to be set up for either 3-state (I Am Working) or 2-state operation.  For an overview of the I Am Working (IAW

®

) function, 

see page 6.

2-state switch modes:  (DEFAULT)
2-state operation is very similar to that of a SPST snap-action switch.  The output either 
opens or closes when a threshold is passed.  The One Series has four possible 2-state 
choices:
•  Open on Rise (“OPEN RISE”) *
•  Open on Fall  (“OPEN FALL”) *
•  Close on Rise (“CLOS RISE”) * 
•  Close on Fall  (“CLOS FALL”) *

3-state switch modes:  (Models 2W2D, 2W3A, 2WLP and 4W3A only)
The 3-state modes take full advantage of the diagnostic capability of the One Series by 
utilizing the switch to send a remote signal.  There are two possible mode choices:
•  Pulse on Rise (“PULS RISE”)
•  Pulse on Fall  (“PULS FALL”)

In 3-state operation, the output will be closed (ON-state) for normal, inside threshold 
operation.  If the set point is exceeded, the output will pulse between closed and open.  
It will change to continuously open to indicate a failure (power out, open wire condition 
or IAW

®

 diagnostic fault condition).  This feature provides the user with important diagnostic information. These modes should be chosen whenever the host is 

capable of being programmed to detect a pulse waveform.  Two pulse widths are available.  (See page 13 item 5 for the Pulse Rates.) (See page 12 for Ladder 
Logic example.)

* NOTE: 

The 2-state control modes have a normally open switch as a valid condition.  The self-diagnostic settings (IAW

®

 and Plugged Port) indicate problems 

remotely using the same open switch signal.  As a result, faults will only be indicated locally on the LCD.  Remote diagnostics are not possible when these control 
modes are selected.  Opening the contacts on a trip or fault condition should be chosen whenever possible, as this is inherently the better “fail safe” choice (i.e., 
alarm, power loss or IAW

®

 diagnostic condition).  The 2-state modes should also be chosen whenever switching a relay (since relay life would be diminished when 

over-cycled by the 3-state pulse) or when the host cannot interpret either of the cycle times of the 3-state pulse waveform. 

Содержание 2W2D

Страница 1: ...NS ONLY THIS EQUIPMENT IS ATEX CERTIFIED SUITABLE FOR APPROPRIATE USE IN GAS ZONE 2 DUST ZONE 22 APPLICATIONS OR GAS ZONE 0 DUST ZONE 20 APPLICATIONS WHEN INSTALLED PER DRAWING A 62174 20 EUROPE 0539 DEMKO 03 ATEX 0322281X 0539 DEMKO 03 ATEX 0322281X II 1 G EEx ia IIC T5 II 3 G EEx nL IIC T5 II 1 D T 90ºC II 3 D T 90ºC 40ºC TAMB 85ºC IP66 40ºC TAMB 85ºC IP66 2W3A MODELS THIS EQUIPMENT IS SUITABLE ...

Страница 2: ...lean and free of debris Use a wrench on the hex pressure connection to tighten Test for leaks On Differential Pressure models the Low L side pressure must NOT exceed the high H side pressure WARNING NEVER INSERT ANY OBJECT INTO THE PRESSURE SENSOR OPENING DAMAGE TO THE SENSOR WILL RESULT AFFECTING ACCURACY Local and Remote Temperature Models For Remote Sensing models C H R Route the extension wire...

Страница 3: ... PAGE 12 FOR ADDITIONAL INFORMATION ON SELECTING AN INTRINSIC SAFETY BARRIER SUBSTITUTION OF COMPONENTS MAY IMPAIR INTRINSIC SAFETY WARNING MODEL 4W3A ACCEPTS 90 130 VAC VDC AS ITS POWER SOURCE THE SWITCHED OUTPUT MAXIMUM LOAD RATING IS 10 A 24 280 VAC AT T amb 38 C 100 F DERATE 1 8 A 10 C 18 F OVERLOADING THE SWITCH MAY CAUSE FAILURE WARNING THE ONE SERIES 8W2D MODEL ACCEPTS 12 30 VDC AS ITS POWE...

Страница 4: ...L1 and L2 terminals Connect the potential free solid state relay at TB1 to an appropriate load Refer to the Switch Ratings Table for the switch ratings The 4W3A has one terminal block labeled TB1 TB1 has four positions marked with L1 L2 and a switch symbol covering the remaining two positions TB1 terminal block accepts 14 22 AWG wiring and the recommended torque is 3 5 in lbs The 8W2D has three te...

Страница 5: ...switch is fully programmable over the entire range of the sensor Reaction time for the One Series to a process change is typically 50 mS or less 2 WIRE SIMPLICITY 2W Models only The One Series 2 Wire electronic pressure switch patented is designed to operate on discrete input leakage current models 2W2D and 2W3A or analog input 4 20 mA loop power models 2WLP41 and 2WLP43 The microprocessor based O...

Страница 6: ...ription of Offset and Span In addition the user can easily access information such as the set point dead band and minimum maximum process readings By pushing the right button once the display will scroll as follows SP1 XX XX DB1 XX XX SP2 XX XX DB2 X XX 8W2D model only By pushing the left button once the display will scroll the min max process values seen MAX XX XX MIN XX XX The display will rever...

Страница 7: ... confirm save the changes and return to the Process Display mode to Discard changes press the right button NO will be displayed Press both buttons to confirm discard the changes and return to the Process Display mode KEY PROGRAMMING FEATURES SWITCH MODE The One Series allows the switch output to be set up for either 3 state I Am Working or 2 state operation For an overview of the I Am Working IAW ...

Страница 8: ...usly captures the readings from the sensor and stores the minimum and maximum values since the last time they were reset These can be viewed at any time by pushing the left button The display will scroll the information and then return to the Process Display mode To reset these values enter the Programming Mode see page 6 use the left button to get to the CLR MAX MIN command and press the right bu...

Страница 9: ...resents the expected variation in the process variable The number is limited to 10 of the full scale range of the sensor The diagram below illustrates the feature s operation T0 Process variable ramp up T1 Process variable stabilizes new thresholds calculated T2 Threshold exceeded new thresholds calculated timer reset T3 Low threshold exceeded new thresholds calculated timer reset T4 Plugged Port ...

Страница 10: ... diagnostics are capable of detecting many possible fault conditions Some fault conditions will clear automatically when the parameter returns to normal others require the unit to be powered down and restarted and some are catastrophic and require repair or replacement A list of fault conditions is shown below DISPLAY WILL SCROLL FAULT RESULT SWITCH OUTPUT 4 20 mA OUTPUT PLUG Plugged Port Detected...

Страница 11: ...an help Please have the manufacturer s model number ready when you call us In rare cases when the series resistor value is too large and falls out of the Acceptable Range placing another resistor across the input will allow it to work Please call 617 926 1000 Technical Sales for assistance Please note that a maximum of 30 VDC supply voltage and a load of 40 mA must not be exceeded or permanent dam...

Страница 12: ...ty barriers must be installed with a suitable 1Ω earth ground Isolated barriers offer simplified installation since there is no requirement for the ground but are generally more expensive than the diode safety barriers Shunt Diode Safety Barriers The entity parameters of diode safety barriers suitable for use with the 2W2D models are V max 28 Volts I max 93 mA Because the 2W2D model derives its op...

Страница 13: ...IM_ONE 01 13 www ueonline com PROCESS DISPLAY ...

Страница 14: ...14 IM_ONE 01 www ueonline com Models 8W2D and 2WLP Dual Conduit shown with Temperature Sensor Models 4W3A 2W2D and 2W3A Single Conduit shown with Gauge Pressure Sensor DIMENSIONAL DRAWINGS ...

Страница 15: ...IM_ONE 01 15 www ueonline com Temperature Model L Temperature Model R SENSOR OPTIONS Gauge Pressure 1 2 NPT female Temperature Models H C Differential Pressure ...

Страница 16: ...ca tions where damage could endanger property or personnel Electrical ratings stated in literature and on nameplate must not be exceeded Overload on a switch can cause damage even on the first cycle Wire unit according to local and national electrical codes using wire size recommended in installation sheet Do not mount unit in ambient temp exceeding published limits LIMITED WARRANTY Seller warrant...

Отзывы:

Нет отзывов