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Series F4P User’s Manual 96mm x 96mm Process Controller (1/4 DIN) with Guided Setup and Programming 1241 Bundy Boulevard, Winona, Minnesota USA Phone: +1 (507) 454-5300, Fax: +1 (507) 452-4507 http://www.watlow.com Registered Company English Winona, Minnesota USA 0600-0032-0013 Rev D January 2003 $15.00...
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Watlow representative (see back cover), or in the U.S., dial +1 (507) 494-5656 between 7 a.m. and 5 p.m., Central Standard Time (CST). Ask for for an Applications Engineer.
..... . Inside Back Cover A downloadable electronic copy of this user manual is available free of charge through Watlow's web site: http://www.watlow.com/literature/prodtechinfo...
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Notes Table of Contents Watlow Series F4P...
Chapter One: Introduction Watlow’s Series F4P, 96mm by 96mm (1/4 DIN) Temperature/Process controllers are easy to set up, pro- gram and operate in the most demanding applications. The F4P Temperature/Process controller includes: • four-line, high resolution LCD display; • guided setup software;...
During all these steps, the Information Key will summon helpful definitions and setup tips. Just position the cur- sor next to the item you want to know more about, then press the key. Press it again to return to your task. 1 .2 Introduction Watlow Series F4P...
Static Message Message 3 save the new ones. >Go to Operations Factory Page Go to Setup Set Lockout Go to Factory Diagnostic Test Calibration Figure 2.1 — Page Navigation. Watlow Series F4P Operating from the Front Panel...
Main Page, and press the Right key again. A message will confirm that the alarm is unlatched. Figure 2.2 — Series F4P Displays and Indicator Lights. 2 .2 Operating from the Front Panel Watlow Series F4P...
Note: See also differential set point and ratio set should change the set point on the controller. Failure to point. comply with these recommendations may result in dam- age to equipment and property and injury to personnel. Watlow Series F4P Operating from the Front Panel...
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Main Page.) • Analog input(s) in error condi- • Correct cause of input error. tion. • Input may be in error condition. • Check the alarm output function. 2 .4 Operating from the Front Panel Watlow Series F4P...
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• Check sensor isolation. Inputs 2 and 3 are not isolated from each other. Upper [Atod`] • Component failure. • Return to factory for evaluation. Lower !Timeout x (x is 1 to 3) Watlow Series F4P Operating from the Front Panel...
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• Checksum error in • Noise on power line. • Add power line filter for input power. Cycle device power. • Component failure. • Return controller to factory for repair. 2 .6 Operating from the Front Panel Watlow Series F4P...
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• Place sensor near source. • Output relay open or shorted. • Replace relay. • Sensor shorted. • Replace sensor. • Heater/cooling non-functional. • Repair heating/cooling circuits. • Check circuit breakers, switches, heater elements, compressor. Watlow Series F4P Operating from the Front Panel...
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Notes: 2 .8 Operating from the Front Panel Watlow Series F4P...
The Alarm High Set Point defines the high value that, if exceeded, will trigger an alarm. This value must be higher than the alarm low set point and lower than the high limit of the sensor range. Watlow Series F4P Operations Page...
Main Page. It should be stable, ±2%. At this point, the process temperature should also be stable, but it will exhibit droop (stabilized below set point). The droop can be eliminated with integral (re- set). 3 .2 Operations Page Watlow Series F4P...
Analog Input 1 sensor, which usually measures results, use proportional control only on the inner loop. the energy source temperature. The output device con- trols a power switching device, which in turn switches Watlow Series F4P Operations Page...
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10 minutes. Then halve the setting again and wait another 10 minutes until the process value equals the set point. If the process becomes unstable, the integral value is too small. Increase it until the process stabilizes. 3 .4 Operations Page Watlow Series F4P...
• Digital Input x (1 to 4); • Control Output x (1A, 1B); • Alarm Output x (1 or 2); • Retransmit Output x (1 or 2); • Communications; and • Custom Main Page and Custom Messages. Watlow Series F4P Setup Page...
The message is displayed on the Main Page when the digital input is active. This feature could, for instance, display “DOOR OPEN” if an oven door is not closed all the way. 4 . 2 Setup Page Watlow Series F4P...
Note: For more information about how parameter settings affect the controller’s operation, see the Features Chapter. ç CAUTION: Only authorized and qualified personnel should be allowed to perform preventive and corrective maintenance on this unit. Watlow Series F4P Factor y Page...
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Set Lockout on the Factory Page. To change a password, you must first enter the old password for Enter Password: confirmation. _ _ _ _ Adjusts Char < Back >Next 5 .2 Factor y Page Watlow Series F4P...
Press . once at the Calibrate Input x (1 or 2) prompt (Factory Page). At the 32°F Type J prompt press . once and to store type J thermocouple calibration press > once. 6. Rewire for operation and verify calibration. Watlow Series F4P Factor y Page...
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RTD calibration. Refer only for other agency requirements or if temperatures to the Ordering Information in the Appendix. aren’t accurate as verified by another calibrated instrument. 5 .4 Factor y Page Watlow Series F4P...
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4. Press the Right Key . at the Calibrate Output 1A volt/ammeter reads 1.000V. Press . to store the prompt. At the 20.000mA prompt press . once. Use value. the Up Key > or the Down Key < to adjust the Watlow Series F4P Factor y Page...
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The controller should stabilize within one second. Repeat until the volt/ammeter reads 10.000V. Press . to store the value. 8. Rewire for operation and verify calibration. 5 .6 Factor y Page Watlow Series F4P...
It may also be helpful for you to make copies of the Pa- rameter Records for each of the pages, as well as the Custom Main Page Record, then record your settings for future reference. Watlow Series F4P Parameters...
% Power 1B % Power 1A bar [graph] % Power 1B bar [graph] Tune Status 1 Digital Inputs Note: For more information about how parameter settings affect the controller’s operation, see the Features Chapter. 6 .2 Parameters Watlow Series F4P...
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Go to Factory Set security settings, cal- ibrate and restore factory settings, perform diag- nostics, test outputs. Note: For more information about how parameter settings affect the controller’s operation, see the Features Chapter. Watlow Series F4P Parameters...
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Note: For more information about how param- * None of the B parameters are active if both out- puts are set to cool or heat. eter settings affect the controller’s operation, see the Features Chapter. 6 .4 Parameters Watlow Series F4P...
0.* Note: For more information about how parameter set- * None of the B parameters are active if both outputs are set to cool or heat. tings affect the controller’s operation, see the Features Chapter. Watlow Series F4P Parameters...
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Active if Alarm x Type (Setup Point x Low Set Point Page) is set to Process. Set high value at which alarm is triggered. Note: Press the Information Key ˆ for more task-related tips. 6 . 6 Parameters Watlow Series F4P...
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Select whether the maxi- Startup or Change (2) mum rate of tempera- ture or process value change will be limited. Note: For more information about how parameter settings affect the controller’s operation, see the Features Chapter. Watlow Series F4P Parameters...
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Select the set point value that will be acti- vated by digital input x. The set point name can be changed in the Setup Page. Note: Press the Information Key ˆ for more task-related tips. 6 . 8 Parameters Watlow Series F4P...
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Page > Analog Input 2) is set to Switch between the re- Remote 3 (2) Remote. mote and local set points. Note: For more information about how parameter settings affect the controller’s operation, see the Features Chapter. Watlow Series F4P Parameters...
Dig. SP 1 Dig. SP 2 Dig. SP 3 Dig. SP 4 Digital Set Point x (1 to 4) Digital Differential Set Point x (1 to 4) Digital Ratio Set Point x (1 to 4) 6 .1 0 Parameters Watlow Series F4P...
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Fixed (1) Select how the outputs will behave if an input error switches the con- troller to manual mode. Note: For more information about how parameter settings affect the controller’s operation, see the Features Chapter. Watlow Series F4P Parameters 6.11...
Note: Press the Information Key ˆ for more task-relat- *The tenth digit of your model number, F4PX-XXXX-XXXX, ed tips. determines what RTD resistance values the unit uses. Re- fer to the Ordering Information in the Appendix. 6 . 1 2 Parameters Watlow Series F4P...
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Note: For more information about how parameter set- *Not functional if analog input 3 setup for cascade. tings affect the controller’s operation, see the Features Chapter. **Scale Low value must be less than Scale High value for Normal or Inverse Scaling. Watlow Series F4P Parameters 6.13...
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5538 [3] Set the size of the offset. 5539 [4] 5540 [5] 5541 [6] 5542 [7] 5543 [8] 5544 [9] 5545 [10] Note: Press the Information Key ˆ for more task-related tips. 6 . 1 4 Parameters Watlow Series F4P...
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AB- _ _ _ _), Analog Input 3 is to the closed valve. selected, Sensor is set to Slidewire and Auto/Manual Calibration is set to Manual. Note: For more information about how parameter settings affect the controller’s operation, see the Features Chapter. Watlow Series F4P Parameters 6.15...
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Select the cascade high 1 to 9.999 to Deviation Cascade. Based deviation. (1 to9999) in integer, on decimal setting. tenths, hundredths, thousandths Note: Press the Information Key ˆ for more task-related tips. 6 . 1 6 Parameters Watlow Series F4P...
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Activate Message. Set the length of time 3060 [1] that the message will 3061 [2] display. 3062 [3] 3063 [4] Note: For more information about how parameter settings affect the controller’s operation, see the Features Chapter. Watlow Series F4P Parameters 6.17...
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* Note: Digital inputs are edge triggered and require a transition from a high to low or low to high state. Note: Press the Information Key ˆ for more task-related tips. 6 . 1 8 Parameters Watlow Series F4P...
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Yes on Main Output Active if Alarm Output is en- No (1) Page (0) abled. Select the alarm mes- sage option. Note: For more information about how parameter settings affect the controller’s operation, see the Features Chapter. Watlow Series F4P Parameters 6.19...
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Inputs 2 and 3 only available if unit has the Enhanced tips. Control Operation option. The eighth digit of your model number, F4PX-XXX determines the Control Op- eration. Refer to the Ordering Information in the Ap- pendix. 6 . 2 0 Parameters Watlow Series F4P...
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(22) % Power 1B bar [graph] (23) Tune Status 1 (24) ***Digital Inputs (25) Active Ch1 PID Set (26) Note: For more information about how parameter settings affect the controller’s operation, see the Features Chapter. Watlow Series F4P Parameters 6.21...
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4621-4637 [2] Line 3 4641-4657 [2] 4661-4677 [3] 4681-4697 [3] 4701-4717 [3] 4721-4737 [3] 4741-4757 [4] 4761-4777 [4] 4781-4797 [4] 4801-4817 [4] Note: Press the Information Key ˆ for more task-related tips. 6 . 2 2 Parameters Watlow Series F4P...
Cascade Cascade Low Range Cascade High Range Cascade Low Deviation Cascade High Deviation Digital Input Digital In 1 Digital In 2 Digital In 3 Digital In 4 Function Name Activate Message Message Display Time Condition Watlow Series F4P Parameters 6.23...
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Message 2, Line 4 Message 3, Line 1 Message 3, Line 2 Message 3, Line 3 Message 3, Line 4 Message 4, Line 1 Message 4, Line 2 Message 4, Line 3 Message 4, Line 4 6 .2 4 Parameters Watlow Series F4P...
Digital Inputs Active Ch1 PID Set * appears if Input 3 is set to Ratio ** appears if Input 3 is set to Differential Go to Operations Will always appear: Go to Setup Go to Factory Watlow Series F4P Parameters 6.25...
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Clear Locks Yes (0) 1315 r/w Active: Always. Unlock set point and all pages and menus. Note: For more information about how parameter settings affect the controller’s operation, see the Features Chapter. 6 .2 6 Parameters Watlow Series F4P...
(0 to 999) Identifies the software revision. Input 1 Univ Single (7) Active: Always. Displays the input 1 type. Note: For more information about how parameter settings affect the controller’s operation, see the Features Chapter. Watlow Series F4P Parameters 6.27...
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Choose output to test. Output 1B (2) Retransmit 1 (5) Retransmit 2 (6) Alarm 1 (7) Alarm 2 (8) All On (9) Communications (10) Note: Press the Information Key ˆ for more task-related tips. 6 . 2 8 Parameters Watlow Series F4P...
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Features Chapter. uses. Refer to the Ordering Information in the Appendix. Ω Options 1-4, 100Ω RTD - 15.00 and 380.00 Ω Options 5-8, 500Ω or 1000Ω RTD - 240.00 and 6080.00 Watlow Series F4P Parameters 6.29...
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RTD calibration resistance values the unit tips. uses. Refer to the Ordering Information in the Appendix. Options 1-4, 100Ω RTD - 15.00 and 380.00Ω Options 5-8, 500Ω or 1000Ω RTD - 240.00 and 6080.00Ω 6 . 3 0 Parameters Watlow Series F4P...
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Input 3 (2) Restores original factory sion (F4P _ - _ _ AB - _ _ _ _). calibration values. Note: For more information about how parameter settings affect the controller’s operation, see the Features Chapter. Watlow Series F4P Parameters 6.31...
(point 1) or higher than the last point (point 10) are zero. Location in software: Setup Page > Analog Input x (1 to 3) Menu > Input Offset x (1 to 10). 7 .2 Features Watlow Series F4P...
Set Point Range (must be between SP Low Limit and SP High Limit) SP Low Limit SP Low Limit Range (between Low Limit of Sensor and SP High Limit) Low Limit of selected Sensor Range Figure 7.3b — Sensor Ranges. Watlow Series F4P Features...
The event will continue until the rising edge (low to high state) oc- curs again. Location in software: Setup Page > Digital Input x (1 to 4) Condition. 7 .4 Features Watlow Series F4P...
With proportional control the output power level equals Figure 7.6b — Proportional Control. (set point minus process value) divided by propband. Location in software: Operations Page > Edit PID > PID Set x (1 to 5). 7 .6 Features Watlow Series F4P...
Time Location in software: Operations Page > Edit PID > PID Figure 7.7c — Cooling Dead Band. Set x (1 to 5). Watlow Series F4P Features...
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RFI. Location in software: Setup Page > Control Output x (1A or 1B). 50% output 1 ON, 1 OFF 66% output 2 ON, 1 OFF Figure 7.8b — Burst Fire. 7 .8 Features Watlow Series F4P...
[oPLP`] and the lower screen will display “Open Loop.” To clear an open loop error, after correcting the problem that caused it, turn the controller off then back on. Location in software: Setup Page > System. Watlow Series F4P Features...
A rate alarm is triggered by a change in temperature or process value that exceeds the selected rate. Location in software: Setup Page > Alarm Output x (1 or 7 .1 0 Features Watlow Series F4P...
Alarms can be configured to trigger when the process ex- ceeds the High Alarm Set Point, the Low Alarm Set Point or both. Location in software: Setup Page > Alarm x (1 or 2). (Alarm set points are established in the Operations Page.) Watlow Series F4P Features 7.11...
Boost set points and boost deviation values are set in the Operations Page > Control Set Points. Time Boost Heat Figure 7.12b — Boost Heat Based on a Fixed Set Point. 7 .1 2 Features Watlow Series F4P...
1 hot water temperature transmitter cold water 4 - 20 mA Output 4 - 12 mA 12 - 20 mA -100 to 0% power 0 to100% power Cooling Heating Figure 7.13 — Duplex Application Example. Watlow Series F4P Features 7.13...
Main Page. This set point is not adjustable from the Main Page. 25 C 80 C 150 C 250 C Figure 7.14 — Digital Set Points System Example. 7 .1 4 Features Watlow Series F4P...
The Series F4P firmware considers the sensor not being used to be off. Out-of-operating-range transitions will cause the Series F4 to switch to the manual mode. Tran- sitions from outside the set point operating range will Watlow Series F4P Features 7.15...
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Location in software: Setup Page and Operations Page.To set Lube O il Ta nk up and tune a system for cascade control, see the Operations Chapter. Location in software: Setup Page and Operations Page Figure 7.16c -- Cascade Example 7 .1 6 Features Watlow Series F4P...
Value) can be enabled remotely through designated digi- input 1 output 1 mixed paint input 3 flow flow controlled flow transmitter transmitter of pigment Mix ing Ta nk uncontrolled motorized flow of valve unmixed paint Figure 7.17b — Ratio Control Application Example. Watlow Series F4P Features 7.17...
Input 1 - Gas Furnace Sensor Output 1A = Close Valve Actuator Enhanced Output 1B = Open Temperature Sensor Input 3 - Set Point Gas Flow Slidewire Input Figure 7.18b — Slidewire Feedback Application Example. 7 .1 8 Features Watlow Series F4P...
(3.930 in) Go to Factory (3.62 to 3.65 in) 9.5 mm maximum (0.375 in) å ˆ 17.6 mm (0.675 in) minimum 16 mm (0.625 in) minimum Figure 8.2b — Multiple Panel Cutout Dimensions. 8 .2 Installation and Wiring Watlow Series F4P...
Figure 8.3b — Retention Collar and Mounting Bracket. cutout. If you can, you do not have a proper seal. Do not overtighten. Overtightening could damage the the mounting bracket. Figure 8.3c — Tightening the Screws. Watlow Series F4P Installation and Wiring...
Hold the bracket steady; do not pull back. Be ready to support the controller as it comes through the front panel. Remove the mounting brackets and retention collar from the back side of the panel. 8 .4 Installation and Wiring Watlow Series F4P...
Series F4P. Failure to do so could result in such damage, disconnection for servicing. Failure to do so could result and/or injury or death. in damage to equipment and/or property, and/or injury or death to personnel. Watlow Series F4P Installation and Wiring...
Available on all units. sensor break protection. Input impedance: 100Ω Outputs can remain full - 62 0 to 50mV Figure 8.6e — Available on all units Impedance: 20MΩ - 62 8 .6 Installation and Wiring Watlow Series F4P...
RTD (3-wire) 100, 500 or 1000Ω Platinum Figure 8.7c — equipment and product. F4P _ - _ _ AB - _ _ _ _ The last two digits of the model number determine RTD calibration. Input 2 Input 3 Watlow Series F4P Installation and Wiring...
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Outputs can remain full Slidewire Input (Input 3 only) Figure 8.8d — F4P _ - _ _ _AB - _ _ _ _ Slidewire resistance range: 100 to 1200Ω Input 3 Wiper 8 .8 Installation and Wiring Watlow Series F4P...
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Event Ground (27) Digital Input 1 (28) Digital Input 2 (29) Digital Input 3 (30) Digital Input 4 (31) +5VÎ (dc) (32) +5VÎ (dc) Internal Circuitry Watlow Series F4P Installation and Wiring...
485SD9TB or loss of life, use National Electric Code T-/R- T+/R+ (NEC) standard wiring Watlow p/n 0830-0473-0001 practices to install and Power – operate the Series F4P. 120V (ac) Supply Failure to do so could 6 ft.
DIN-A-MITE recommendation may DA10-24C0-0000 result in damage to equipment and property Heater and injury to personnel. Series 97 97A1-DDAA-00RR Limit Controller high-temperature light Figure 8.14 — System Wiring Example 8 .1 4 Installation and Wiring Watlow Series F4P...
Failure to comply with this recommendation may result in damage to equipment and property and injury to personnel. Figure 8.15 — Wiring Notes. Watlow Series F4P Installation and Wiring 8.15...
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Notes 8 .1 6 Installation and Wiring Watlow Series F4P...
With it you can read all of the con- Modbus protocol, you may want to download the elec- troller’s parameters with a few read commands. tronic F4P Communications Guide from the Watlow web If you already have a software application that uses site: http://www.watlow.com/prodtechinfo. Search on the Modbus, the Modbus Registers Table in this chapter will key words Data Communications.
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-19999 to Alarm 2 Maximum Rate High -1 1915 Auto/Manual Slidewire Calibration, Analog Input 3 r/w Alarm 2, Status Skip Calibration Automatic Alarm High Manual Alarm Low Autotune PID Alarm Hysteresis, Alarm Output 1 Tune Off 1 to 9999 9 . 2 Communications Watlow Series F4P...
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Calibrate Process Output 1A, 20.000mA Clear Alarm 2, Key Press Simulation 0 to 24000mA (in thousandths) write any value 1604 Calibrate Process Output 1A, 4.000mA Clear Error Input 1, Key Press Simulation 0 to 6000mA (in thousandths) Watlow Series F4P Communications...
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Derivative 1A, Cascade PID Set 4 Fixed Time 0 to 999 minutes (in hundredths) Cycle Time Type, Control Output 1B 2683 Derivative 1A, Cascade PID Set 5 Variable Burst 0 to 999 minutes (in hundredths) 9 . 4 Communications Watlow Series F4P...
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Digital Set Point 4, Control Set Points Set Point Low Limit to Set Point High Limit Panel Lock 1513 Display Test, Test Reset Alarm 1 Perform Display Test Reset Alarm 2 Duplex Output, Control Output 1A Reset Both Alarms Control Outputs Off Watlow Series F4P Communications...
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Integral 1B, PID Set 2 1 to 30000 0 to 9999 minutes in hundredths Hysteresis 1B, PID Set 3 Integral 1B, PID Set 3 1 to 30000 0 to 9999 minutes in hundredths 9 . 6 Communications Watlow Series F4P...
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None ASCII codes A to Z, 0 to 9, space Mechanical Relay 3020-26 Name (Char 01-07), Digital Input 3 ASCII codes A to Z, 0 to 9, space Process 3030-36 Name (Char 01-07), Digital Input 4 Watlow Series F4P Communications...
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Remote 2 rr/w 0 to 30000 Remote 3 2650 Proportional Band 1B, Cascade PID Set 3 2602 Reset 1A, Cascade PID Set 1 0 to 30000 0 to 9999 repeats per minute (in hundredths) 9 . 8 Communications Watlow Series F4P...
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1302 Setup Page, Set Lockout Save Full Access Scale High, Analog Input 1 Read Only Depends on sensor and decimal point selection. Password Scale High, Analog Input 2 Hidden Depends on sensor and decimal point selection. Watlow Series F4P Communications...
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Units [3 characters] 17 0 to 10V Units, Analog Input 3 18 0 to 50mV Temperature 23 DIN 500Ω RTD Units [3 characters] 24 JIS 500Ω RTD 25 DIN 1kΩ RTD 26 JIS 1kΩ RTD 9 . 10 Communications Watlow Series F4P...
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Reset 1A, PID Set 1 Error Latch, Analog Input 1 Derivative 1A, PID Set 1 Units, Analog Input 1 Rate 1A, PID Set 1 Sensor, Analog Input 2 Dead Band 1A, PID Set 1 Sensor Type, Analog Input 2 Watlow Series F4P Communications 9.11...
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Condition, Digital Input 3 2604 Rate 1A, Cascade PID Set 1 1066 Function, Digital Input 4 2605 Dead Band 1A, Cascade PID Set 1 1067 Condition, Digital Input 4 2607 Hysteresis 1A, Cascade PID Set 1 9 . 12 Communications Watlow Series F4P...
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3061 Message Display Time, Digital Input 2 3062 Message Display Time, Digital Input 3 3063 Message Display Time, Digital Input 4 3070-3072 Units (Char 1-3), Analog Input 1 3073-3075 Units (Char 1-3), Analog Input 2 Watlow Series F4P Communications 9.13...
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Notes 9 . 14 Communications Watlow Series F4P...
Dimensions Inc. • Width x height x depth 3.93 in x 3.93 in x 3.85 in panel mount NOTE: Specifications subject to change without notice. (99 mm x 99 mm x 97 mm) A . 2 Appendix Watlow Series F4P...
Erklärt, dass das folgende Produkt: Deutsch Bezeichnung: Serie F4 WATLOW Winona, Inc. Modell-Nummern: F4(S, D oder P)(H or L) – (C, E, F oder K)(A, C, E, F oder K)(A, C, F or K)(A, C, F, K, 0 oder 6) – (0, 1 1241 Bundy Boulevard oder 2) –...
(RC) filter. control mode — The type of action that a con- form A — A single-pole, single-throw relay that us- troller uses. For example, on/off, time proportion- es only the normally open (NO) and common con- Watlow Series F4P Appendix...
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See burst fire. acteristic to measure temperature. There are two basic types of RTDs: the wire RTD, which is usual- zero switching — See zero cross. ly made of platinum, and the thermistor, which is Watlow Series F4P Appendix...
Boost Delay Time Boost Set Point Digital Set Point x (1 to 4) Digital Differential Set Point x (1 to 4) Digital Ratio Set Point x (1 to 4) Remote/Local Set Points Remote/Local Set Point Watlow Series F4P Appendix A.13...
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Calibrate Output x (1A or 1B) Boost Power Mode (1B) Calibrate Rexmit x (1 or 2) Boost Set Point Type (1B) Restore In x (1 to 3) Cal Alarm Output x (1 and 2) Name A . 1 4 Appendix Watlow Series F4P...
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About Watlow Winona Watlow Winona is a U.S. division of Watlow Electric Mfg. Co., St. Louis, Missouri, a manufacturer of industrial electric heating products since 1922. Watlow products include electric heaters, sensors, controllers and switching devices. The Winona operation has been designing solid-state electronic control devices since 1962, and has earned the reputation as an excellent supplier to original equipment manufacturers.
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How to Reach Us Your Authorized Watlow Distributor: United States (headquarters): Asia/Pacific: Watlow Electric Manufacturing Company Watlow Australia Pty., Ltd. 12001 Lackland Road 23 Gladstone Park Drive, St. Louis, Missouri USA 63146 Tullamarine, Victoria 3043 Australia Telephone: +1 (314) 878-4600...