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Summary of Contents for FlowLine DataPoint LC52 Series
- Page 1 CALL TOLL FREE 877-742-2878 FOR SALES AND SUPPORT. CLICK HERE TO RETURN TO WEBSITE DataPoint Continuous Relay Controller LC52 Series Manual Rev A2 LC900007 1 of 18 ...
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Page 2: Table Of Contents
INTRODUCTION / TABLE OF CONTENTS Step One The LC52 Series Continuous Relay Controller is a general‐purpose level controller which provides single tank level indication with dual relays and a repeater 4‐20 mA output. The LC52 Series features both a single 12A SPDT and a single 12A Latching SPDT relay. This package allows for a system that can perform automatic operations (fill or empty) and an alarm operation (high or low). The LC52 series can also be a controller that can perform dual alarms (2‐high, 2‐low or 1‐high, 1‐low). Package the controller with a transmitter that provides a 4‐20 mA output and an enclosure to protect the controller from the elements. ... -
Page 3: Dimensions
SPECIFICATIONS/DIMENSIONS Step Two Display type: LED, 3.5 digit Top View ‐ All Models Display units: Engineering Display output: 0 to 999 or 0.0 to 199.9 LED indicators: Power and relay status Bar graph display: 4‐20 mA with set points Configuration: Push button Alarm indication: Amber: < 4 mA Red: > 20 mA Security: Lock out mode Sensor input: (1) 4‐20 mA transmitter Supply voltage: Selectable 120 VAC / 240 VAC 50 ‐ 60 Hz. Consumption: 5 Watt maximum Side View ‐ All Models Sensor supply: 24 VDC @ 25mA (primary) 28 VDC @ 50mA (secondary) Contact type: (1) SPDT (1) Latched SPDT Contact rating: 250 VAC, 12A, ½ Hp Contact output: Selectable, NO or NC ... -
Page 4: Safety Precautions
Flammable or Explosive Applications: The LC52 series continuous relay controllers should not be used with explosive or flammable liquids, which require an intrinsically safe or explosion proof rating. If you are unsure of the suitability of a controller for your installation, consult your Flowline representative for further information. Install In a Dry Location: The controller housing is not designed to be immersed. When installed properly, it should be mounted in such a way that it does not normally come into contact with liquid. Refer to an industry reference to ensure that compounds that may splash onto the controller housing will not damage ... -
Page 5: Installation
In critical applications, redundant backup systems and alarms must be used in addition to the primary system. Such backup systems should use different sensor technologies where possible. While this manual offers some examples and suggestions to help explain the operation of FLOWLINE products, such examples are for information only and are not intended as a complete guide to installing any specific system. ... -
Page 6: Getting Started
GETTING STARTED Step Four Features of a Single Input High or Low Relay: Single Input Relays (Relay 1 or Relay 2 w/ latch turned OFF) are designed to switch from a single set‐point. It turns its internal relay ON or OFF (as set by the invert switch) in response to the presence of liquid, and changes the relay status back again when the sensor is dry. High Alarm: Invert is OFF. Relay will energize when the level rises above the high alarm setting and will de‐energize when it drops below the high alarm setting. Low Alarm: Invert is ON. Relay will energize when the level drops below the low alarm setting and will de‐energize when ... -
Page 7: Guide To Controls
GETTING STARTED (continued) Step Four The Latching Relay (Automatic Fill/Empty) may be used with any device that outputs a 4‐20 mA signal. The relay is a single pole, double throw type; the controlled device can be connected to either the normally open or normally closed side of the relay. Typical applications for Latching Relays are automatic filling (starting fill pump at a low level and stopping pump at a high level) or automatic emptying operations (opening a drain valve at a high level and closing valve at low level). Guide to Controls: Below is a listing and the location of the different components for the controller: 1. Power indicator: This Green LED lights when AC power is ON. 2. Relay indicator: This Red LED will light whenever the controller energizes the relay, in response to the transmitter input and after the time delay. 3. AC Power terminals: Connection of 120 VAC power to the controller. The setting may be changed to 240 VAC if desired. This requires changing internal jumpers; this is covered in the Installation section of the manual. Polarity (neutral and hot) does not matter. 4. Relay terminals (NC, C, NO): Connect the device you wish to control (pump, alarm etc.) to these terminals: ... -
Page 8: Electrical
ELECTRICAL Step Five Wiring to Input Terminals: Signal input is always through the 24 VDC terminal. The 28 VDC terminal is used as an alternative power supply for three‐wire devices. Please note a difference between 2‐wire and 3‐wire level transmitters and sourcing and sinking modes below. Below is a quick review of wiring the LC52 series to common 4‐20 mA transmitters. EchoSonic II (LU23, LU27, LU28 & LU29 series) EchoSpan (LU80, LU81, LU83 & LU84 series) & EchoPod (DL10, DL14, DL24 & DL34 series) Sourcing Mode (Factory Setting) Sourcing mode (Factory Setting) Echotouch (LU30‐5004 and LU30‐5064 only) ... -
Page 9: Repeater Output
ELECTRICAL (continued) Step Five Echotouch (Intrinsically Safe) (LU20‐5001‐IS & LU20‐5061‐IS) Sinking mode (internal jumper must be changed) Setting Input Polarity (Sourcing vs. Sinking modes): The LC52 can be set in one of two modes, sourcing and sinking. The LC52 is shipped from the factory in the sourcing mode. This is compatible with any loop powered transmitter such as the EchoSonic II (LU23, LU27, LU28 & LU29 series), EchoSpan (LU80, LU81, LU83 & LU84 series), EchoPod (DL10, DL14, DL24 & DL34 series), DeltaSpan pressure (LD30, LD31, LD32, LD34 & LD35 series) and FloTek (LV55 series) and the three‐wire Echotouch (LU30‐5004 and LU30‐5064 only) with no adjustment required. If using a LU30‐ 5003, LU30‐5063, LU20‐5001‐IS or LU20‐5061‐IS, follow the instructions below. 1. Remove the back panel of the controller and gently slide the printed circuit Sourcing Mode board (PCB) from the housing. Use caution when removing the PCB. 2. Locate jumpers JWA and JWB on the PCB. 3. To change from sourcing to sinking, remove jumper from JWA and place on Sinking Mode JWB. The LC52 is shipped from the factory in the sourcing mode (JWA active). 4. Gently return PCB into housing and replace back panel. Note: Loop powered devices can operate in either the souring or sinking modes. ... -
Page 10: Vac Power Input Wiring
ELECTRICAL (continued) Step Five VAC Power Input Wiring: Observe the POWER SUPPLY label on the LC52 series. The label identifies the power requirement (120 or 240 VAC) and the terminal wiring. Note: Polarity does not matter with the AC input terminal. Changing from 120 to 240 VAC: The LC52‐1001 is shipped from the factory configured as a 120 VAC powered device. To switch to 240 VAC, follow the instructions below. 1. Remove the back panel of the controller and gently slide the printed 120 VAC Jumper Setting ... -
Page 11: Application Exmaples
APPLICATION EXAMPLES Step Seven Low Level Alarm: The goal is to make sure that the liquid level does not fall below a certain point. If it does, an alarm is supposed to sound, alerting the operator of a low level condition. If power is accidentally cut to the controller, the sensor's ability to notify the operator of a low level condition could be lost. The system must alert the operator not only to low liquid level, but to controller power loss. To do this, connect the hot lead of the alarm to the NC side of the relay terminal of the controller. If power is lost, the relay will be de‐energized, and the alarm will sound (if there is still power to the alarm circuit itself). The alarm ... -
Page 12: Automatic Fill
APPLICATION EXAMPLES (cont.) Step Seven Automatic Fill: This system consists of a tank with a valve controlled by the LC52. At a low set point, the valve opens, filling the tank. At the high set point, the valve closes. Part of a proper fail‐safe design for this particular system is that if power is lost to the controller for any reason, the valve filling the tank must close. Therefore, we connect the valve to the NO side of the relay. When the relay is energized, the valve will open and fill the tank. The relay indicator will correspond directly to the Open/Close status of the valve. NOTE: If the device’s load exceeds the rating of the controller’s relay, a stepper relay of higher capacity must be used as part of the system design. ... -
Page 13: Programming
PROGRAMMING Step Eight OFFSET: Equivalent to the 4 mA set point on the transmitter. Enter the value you would like to see when the LC52 receives 4 mA. SPAN: Equivalent to the 20 mA set point on the transmitter. Enter the value you would like to see when the LC52 receives 20 mA. RLY1, RLY2A, RLY2B: Set points for Relays. Values must be between OFFSET and SPAN. Setting values: With the Latch Off, ignore steps 9 and 10. RLY2B will not show during the programming section with Latch Off. 1. Press the SET button once. Immediately, the LED bar graph will begin to flash one Green bar next to OFFSET. 2. Use UP / DWN buttons to change display to the desired OFFSET value. 3. Press the SET button again. Immediately, the LED bar graph will jump one Green bar to the right next to SPAN. 4. Use UP / DWN buttons to change display to the desired SPAN value. 5. Press the SET button again. Immediately, the LED bar graph will jump one Green bar to the right next to RLY1. 6. Use UP / DWN buttons to change display to the desired RLY1 value. 7. Press the SET button again. Immediately, the LED bar graph will jump one Green bar to the right next to RLY2A. 8. Use UP / DWN buttons to change display to the desired RLY2A value. 9. Press the SET button again. Immediately, the LED bar graph will jump one Green bar to the right next to RLY2B. 10. Use UP / DWN buttons to change display to the desired RLY2B value. 11. Press the SET button again. Immediately, the LED bar graph will return back to it normal operation of solid bars. ... -
Page 14: Appendix
APPENDIX Step Nine Controller Logic: Please use the following guide to understand the operation of the controllers. 1. Power LED: Make sure the Green power LED is ON when power is supplied to the controller. 2. Bar Graph LED: The bar graph LED on the controller will always indicate the proportional 4‐20 mA input signal going to the LC52 controller. i.e.: if the tank is 25% full, then 25% of the bar graph will be lit Green. If a single Amber bar appears, this indicates an input current of less than 4mA. If a single Red LED appears, this indicates an input current greater than 20 mA. Use this feature to confirm the input signal for the LC52. 3. Relay LEDs: The normal state of the relay is when the LED is OFF. When the relay becomes energized, the Red LED will light. If power is removed from the controller, the relay will return to the normal state (LED OFF). 4. Display: Will indicate the proportional level of the liquid based upon the 4‐20 mA input. If EasyCal is used for either the empty tank level, full tank level or both, the display will ignore the 4‐20 mA input signal and use the EasyCal setting as it’s empty and/or full position. Relay Latch Logic Table (relay 2 only): The relay can either be an independent relay (high or low level alarm) or can be a latching relay (automatic fill or empty) with latch ON. With Latch OFF, the relay will only respond to the RLY 2A relay set point. RLY 2B will be ignored. ... -
Page 15: Lockout Function
APPENDIX (continued) Step Nine Lock Out Function: The buttons on the face of the LC52 series can be disengaged or locked out. To lockout the buttons, press both delay buttons and the DWN button simultaneously (see below left). This will lockout all of the buttons and prevent an accidental changing of settings. To unlock the buttons, press both delay buttons and the UP button simultaneously (see below right). Lock Out ON Lock Out OFF (LOCKED) (UNLOCKED) Troubleshooting PROBLEM SOLUTION Display is not reading First check the Bar Graph to make sure it is indicating correct level. the correct level. If not, check transmitter. If so, perform a factory reset on the LC52 and reset values. ... -
Page 16: Exercise
EXERCISE Step Ten The following exercise demonstrates inventory control with automatic filling and a high level alarm. The usable range is 60 inches of liquid. The pump starts filling at 10 inches of liquid and stops filling at 50 inches of liquid. A high level alarm occurs at 55 inches of liquid. ... - Page 17 EXERCISE (continued) Step Ten The following exercise demonstrates inventory control with a high and low level alarm. The usable range is between 16 and 56 inches of liquid. The high level alarm occurs at 50 inches of liquid and the low level alarm occurs at 20" of liquid. Enter all values into the LC52 in inches. The OFFSET is the corresponding 4mA setting in inches. The SPAN is the corresponding 20mA setting in inches. RLY1 is dedicated to the high level alarm because it is a single ...
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Page 18: Warranty, Returns & Limitations
WARRANTY, RETURNS & LIMITATIONS Step Ten Warranty Flowline warrants to the original purchaser of its products that such products will be free from defects in material and workmanship under normal use and service in accordance with instructions furnished by Flowline for a period of two years from the date of manufacture of such products. Flowline's obligation under this ...
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