Instruction/ maintenance manual of the product 93 Watlow Electric
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Series 93 1/16 DIN Microprocessor-Based Auto-tuning Control 0600-0001-0000 Rev C Made in the U.S.A. February 1999 $10 Supersedes 0600-0001-0000 Rev B User ’ s Manual W atlow Controls 1241 Bundy Blvd., P.O. Box 5580, Winona, Minnesota USA 55987-5580 Phone: (507) 454-5300, Fax: (507) 452-4507 http://www.
How to Use This Manual Watlow Series 93 Safety Information We use note, caution and warning symbols throughout this book to draw your attention to important operational and safety information. A bold text “NOTE” marks a short message in the margin to alert you to an important detail.
Watlow Series 93 Table of Contents ■ i Chapter 1: Overview ......................................................... 1.1 General Description ................................................ 1.1 Chapter 2: Install And Wire The Series 93 .............
ii ■ Table of Contents Watlow Series 93 Meet the Series 93 T eam TO T AL 3 Y ear W arranty CUS T O M ER S A TISF A CTI O N We stand behind our product and are committed to your total satisfaction. Pictured below are some of the people at Watlow who have worked hard to bring you one of the finest industrial temperature controllers available today.
Watlow Series 93 Overview ■ 1.1 Over view General Description Welcome to the Watlow Series 93, a 1/16 DIN microprocessor-based tempera- ture controller. The 93 has a single input which accepts type J, K, T, N or S thermocouple, RTD or process input.
Over view 1.2 ■ Overview Watlow Series 93 Notes.
Watlow Series 93 Install and Wire ■ 2.1 Install and Wire Figure 2 .1a - Series 93 Multiple Panel Cutout Dimensions. Installation procedure Bold print denotes requirement for IP65 (NEMA 4X) seal. Follow this procedure to mount the Watlow Series 93 temperature controller: 1.
2.2 ■ Install and Wire Watlow Series 93 Install and Wire Figure 2 .2a - Mounting Case Side View. Figure 2 .2b - Mounting Collar Cross Section with offset teeth. Figure 2 .2c - Case Rear View and IP65 (NEMA 4X) Seal Example. 0 to 0.483 mm space (0 to 0.
Wiring the Series 93 The Series 93 wiring is illustrated by model number option. Check the unit sticker on the controller and compare your model number to those shown here and also the model number break- down in the Appendix of this manual. All outputs are referenced to a de-energized state.
Sensor Installation Guidelines We suggest you mount the sensor at a location in your process or system where it reads an average temperature. Put the sensor as near as possible to the mate- rial or space you want to control. Air flow past this sensor should be moderate.
Watlow Series 93 Install and Wire ■ 2.5 Figure 2.5a – 0-5V Î (dc) Process Input impedance: 10k Ω Figure 2.5b – 4-20mA Process Input impedance: 5 Ω Figure 2.
Output 1 Wiring Figure 2.6a – Mechanical Relay Without Contact Suppression 93_ _- 1 D _ _- 00 _ _ Form C, 5A Minimum load cur- rent: 100mA @ 5V Î (dc) Figure 2.
Watlow Series 93 Install and Wire ■ 2.7 Figure 2.7a – Switched DC 93_ _- 1 C _ _- 00 _ _ Figure 2.7b – 4-20mA Process 93_ _- 1 F_ _- 00 _ _ Maximum load impedance: 800 Ω External Load 10 9 - +.
Output 2 Wiring Figure 2.8a – Mechanical Relay Without Contact Suppression 93_ _- 1 _ D _ - 00_ _ Form C, 5A Minimum load current: 100mA @ 5V Î (dc) Figure 2.8b – Solid-state Relay Without Contact Suppression 93_ _- 1_ K _- 00_ _ 0.5A (ac loads only) Figure 2.
Watlow Series 93 Install and Wire ■ 2.9 Wiring Example Figure 2 . 9 - System Wiring Example. 5 - DIN-a-mite DA1C-1624-C000 1 Coil 9 (+) 10 (-) High Limit Mechanical Controller Heater 94BB-1DA0-00RR .
Wiring Notes Sketch in your application on this page or a copy of it. See the wiring example in this chapter. Figure 2.10 - W iring Notes. Install and Wire 2.
Watlow Series 93 Keys and Displays ■ 3.1 Keys and Displays Figure 3 .1 - Series 93 Keys and Displays. After 60 seconds with no key presses, the controller reverts to the default display — the process value in the upper display and the set point in the lower display.
3.2 ■ Keys and Displays Watlow Series 93 Keys and Displays Notes.
Watlow Series 93 Setup ■ 4.1 Setup Figure 4 .1a - DIP Switch Location and Orientation. O N 1 2 O N 1 2 O N 1 2 Controller Chassis - Bottom View Thermocouple RTD Process Input Types Setting up the Series 93 is a simple process. First set the DIP switches to match your input type.
4.2 ■ Setup Watlow Series 93 Setup [`LOC] Lock [``In] Input [`dEC] Decimal* [`C_F] Celsius - Fahrenheit* [``rL] Range Low [``rH] Range High [`Ot1] Output 1 [`HSC] Hysteresis Control [`Ot2] Output 2 .
Setup Watlow Series 93 4.3 ■ Setup At the top of the Setup Menu the Series 93 displays the user level of operation in the upper display and the [`LOC] parameter in the lower display. Press the ‰ Advance key and the value of the next parameter appears in the upper display, and the parameter appears in the lower display.
4.4 ■ Setup Watlow Series 93 Setup Range High: Selects the high limit of the operating range. Also used to scale the high end of the process input. 5.0V Î (dc) and 20mA represent Range High [``rh] for a process input. The process input is linearly scaled between [``rL] and [``rH] .
Watlow Series 93 Setup ■ 4.5 Setup Parameter Value Range Factory Default Appears If: [ `LOC] 0 to 4 0 [``In] [```J] , [```H] , [```t] , [```n] , [```S] , [```J] DIP switch selectable.
4.6 ■ Setup Watlow Series 93 Setup NOTE: Shaded parameters may not appear, depending on the controller’s configu- ration and model number. Operation Parameters Set Point: Sets the operating set point for Output 1. Represents the process value the system tries to achieve for Output 1.
Watlow Series 93 Setup ■ 4.7 Setup Operation Parameters Value Range Factory Default [`Pb1] If [`dFL] is set to [``US] : 0 to 555 ° C/0 to 999 ° F/0 to 999 Units 2.5 ° C 0 to 55.5 ° C/0 to 99.9 ° F/0 to 99.9 Units 25 ° F 0 is control. [`HSC] is set to switch differential If [`dFL] is set to [``SI] : 0.
4.8 ■ Setup Watlow Series 93 Setup Notes.
Watlow Series 93 Tuning and Operating ■ 5.1 T uning and Operating Autotuning (Heat and/or Cool) The Series 93 can automatically tune the PID parameters to fit the characteristics of your particular thermal system. The autotuning procedure operates on a thermal response value — slow, medium, or fast.
5.2 ■ Tuning and Operating Watlow Series 93 T uning and Operating 4 . When tuning is complete, the displays return to their previous state and [`AUt] reverts to 0. The Series 93 installs appropriate PID tuning parameters and saves them in the non-volatile memory.
Watlow Series 93 Tuning and Operating ■ 5.3 T uning and Operating Manual and Automatic Operation To change from auto to manual operation, press the ˆ Infinity key twice. Manual operation provides open loop control of the outputs from a range of -100% (full cooling) to 100% (full heating) power.
5.4 ■ Tuning and Operating Watlow Series 93 T uning and Operating NOTE: When the alarm output is de-energized, the N.O. contact is open in the alarm condition. The N.C. contact is closed in the alarm condition. Press once - Clear a latched and corrected alarm.
Watlow Series 93 Tuning and Operating ■ 5.5 T uning and Operating Four dashes [----] in the upper display indicate a Series 93 error. The error code is visible in the lower display.
5.6 ■ Tuning and Operating Watlow Series 93 T uning and Operating • [`Er2] , [`Er6] , [`Er7] result in these conditions: • If [`LOC] Lock is set to 0, 1 or 2: …and the controller was in automatic operation when the error occurred, it goes into manual (% power) operation.
Watlow Series 93 Appendix ■ A.1 Appendix Noise and Installation Guidelines For wiring guidelines, refer to the IEEE Standard No. 518-1982, available from IEEE, Inc. 345 East 47th Street, New York, NY 10017. Noise Sources • Switches and relay contacts operating inductive loads such as motors, coils, solenoids, and relays, etc.
A.2 ■ Appendix Watlow Series 93 Appendix • Use twisted pair wire any time controller circuit signals must travel more than two feet, or when you bundle them in parallel with other wires. • Select the size or gauge of wire by calculating the maximum circuit current and choosing the gauge meeting that requirement.
Watlow Series 93 Appendix ■ A.3 Appendix Figure A.3 - Entering the Calibration Menu. NOTE: While in the Calibra- tion Menu, the con- troller output(s) go off and the alarm output (if present) is on. NOTE: Calibration values will not be retained unless you are in the MANUAL mode.
A.4 ■ Appendix Watlow Series 93 Appendix Figure A.4 - Calibration Parameters. ç Before attempting to calibrate, make sure you have the proper equipment called for in each procedure. The Series 93 is calibrated and tested before leaving the factory .
Watlow Series 93 Appendix ■ A.5 Appendix Appendix NOTE: Before calibrating an installed controller, make sure all data and parameters are documented. See the Setup and Operation Tables in Chapter Four. NOTE: When the % indica- tor light is on, the controller is auto- matically calibrating.
A.6 ■ Appendix Watlow Series 93 Appendix Equipment Required • Precision dc voltage source 0-5 volt minimum range with 0.001 volt resolution. Setup and Calibration 1. Connect the ac line voltage L1 and L2 to the proper terminals on the Series 93. 2.
Watlow Series 93 Appendix ■ A.7 Appendix Appendix Equipment Required: • 300 Ω , 1/2 watt 10% resistor. • 4 - 1/2 digit Digital Multimeter. Setup And Calibration 1. Connect the ac line voltage L1 and L2 to the proper terminals of the Series 93.
A.8 ■ Appendix Watlow Series 93 Appendix Notes.
Watlow Series 93 Appendix ■ A.9 Glossar y A alarm A signal that indicates that the process has exceeded or fallen below the set or limit point. For example, an alarm may indicate that a process is too hot or too cold. alarm, deviation Warns that a process has exceeded or fallen below a certain range around the set point.
A.10 ■ Appendix Watlow Series 93 F - G Form A A single-pole, single-throw relay that uses only the normally open (NO) and common contacts. These contacts close when the relay coil is energized.
Watlow Series 93 Appendix ■ A.11 PID Proportional, integral, derivative. A control mode with three functions: proportional action dampens the system response, integral corrects for droop, and deriva- tive prevents overshoot and undershoot. process variable The parameter that is controlled or measured.
A.12 ■ Appendix Watlow Series 93 Appendix Specifications (1639) Control Mode • Microprocessor-based, user-selectable control modes • Single input, dual output • 2.
Ordering Information (1068) 93 _ _ - 1 _ _ _ - 0 0_ _ Part Number Microprocessor-based 1/16 DIN, Single Input, Dual Output, Two-, Four-Digit Displays IP65/NEMA 4X 2 Option A = Without IP65/NEMA 4X Rat.
A.14 ■ Appendix Watlow Series 93 Appendix A ‰ Advance key 3.1 Alarm High 4.7 Alarm Low 4.7 alarm silencing 5.5 alarms 5.4 automatic operation 5.3 autotuning 5.1 Autotune 4.7 B - C calibration A.3 Calibration Menu A.4 Calibration Offset 4.7 Celsius-Fahrenheit 4.
Watlow Series 93 Appendix ■ A.15 Appendix Declara que el producto siguiente: Español Designaci ó n: Serie 93 N ú meros de modelo: 9 3 (A o B) (A o B) - 1 ( C D F o K ) (A C D o K) ( 0 ó 1) - (Cu.
A.16 ■ Appendix Watlow Series 93 Notes Appendix.
Errors Four dashes [----] in the upper display indicate a Series 93 error. The error code is visible in the lower display. [`Er2] - Sensor underrange error (applies only to RTD units) The sensor input generated a value lower than the allowable signal range, or the ana- log-to-digital circuitry malfunctioned.
A.18 ■ Appendix Watlow Series 93 Appendix Parameter Value Range Factory Default Appears If: [`LOC] 0 - 4 0 [``In] [```J] , [```H] , [```t] , [```n] , [```J] DIP switch-selectable.
W atlow Controls Watlow Controls is a division of Watlow Electric Mfg. Co., St. Louis, Missouri, a manufacturer of industrial electric heating products, since 1922. Watlow begins with a full set of specifications and completes an industrial product that is manu- factured totally in-house, in the U.
Watlow Series 93 User’s Manual Watlow Controls, 1241 Bundy Blvd., P.O. Box 5580, Winona, MN 55987-5580, Phone: 507/454-5300, Fax: 507/452-4507 How to Reach Us Quality and Mission Statement: Watlow C.
An important point after buying a device Watlow Electric 93 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Watlow Electric 93 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Watlow Electric 93 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Watlow Electric 93 you will learn all the available features of the product, as well as information on its operation. The information that you get Watlow Electric 93 will certainly help you make a decision on the purchase.
If you already are a holder of Watlow Electric 93, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Watlow Electric 93.
However, one of the most important roles played by the user manual is to help in solving problems with Watlow Electric 93. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Watlow Electric 93 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
