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LFD SERIES OVEN
WITH PROTOCOL
PLUS
INSTRUCTION MANUAL
C-186
PN 143378
REVISION H
3/2009
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Strany 1 - INSTRUCTION MANUAL

LFD SERIES OVEN WITH PROTOCOL PLUS ™ INSTRUCTION MANUAL C-186 PN 143378 REVISION H 3/2009

Strany 2 - Caution

2 Specifications Dimensions Model Chamber Size in (cm) Capacity feet3 (liters) Overall Size in (cm) Maximum Number of Shelf Positions Exhaust Dime

Strany 3

3 Temperature Model LFD 1-42 LFD 2-11 LFD 2-24 Time to Temperature 25°C - 100°C (approximate minutes with 25°C - 200°C no load) 25°C - 343°C 4 10

Strany 4

4 Power Line voltages may vary in some geographical locations. If your line voltage is much lower than the oven voltage rating, warm up time will b

Strany 5 - PREFACE

5 THEORY OF OPERATION This section details the function and operation of assemblies and subassemblies on the Despatch LFD Series Ovens. These ovens

Strany 6

6 Damper Control The oven is equipped with a manually adjustable damper mechanism. The damper control arm is located on the front panel of the oven

Strany 7 - TABLE OF CONTENTS

7 Full Open Position When the fresh air damper is in the full open position, the chamber will operate at its minimum operating temperature. Fricti

Strany 8

8 OVEN INSTRUCTIONS The INSTRUCTIONS section provides directions for unpacking, installation, operation and maintenance of the LFD Series oven. Un

Strany 9 - Special Features

9 Set-up 1. Select the location for installing your oven. If solvents are going to be used in the oven, you must install an exhaust stack to the

Strany 10 - Specifications

10 Operating Users and operators of this oven must comply with operating procedures and training of operating personnel as required by the Occupatio

Strany 11 - Temperature

11 Pre-Startup Checklist Know the system. Read this manual carefully. Make use of its instructions and explanations. Safe, continuous, satisfac

Strany 12

Thank you for choosing Despatch Industries. We appreciate the opportunity to work with you and to meet your heat processing needs. We believe t

Strany 13 - THEORY OF OPERATION

12 Note that in a Class A oven, the heater can not be energized until the forced exhaust system has brought in a minimum amount of fresh air into the

Strany 14 - Damper Control

13 CONTROL The special features of the Protocol PlusTM control include: PID tuning Ramp/Soak programming of up to 64 segments Segment looping

Strany 15 - Other Damper Settings

14 Protocol Plus Faceplate and Wiring Diagram

Strany 16 - Unpacking and Inspection

15 Operating Modes The Protocol Plus control has five modes of operation available: Stopped Mode: All control and relay outputs are off. Stopped M

Strany 17

16 High Limit The control has an integrated high limit function which will disable the heater output when tripped. If the high limit does trip, the

Strany 18 - Operating

17 Displays The Protocol Plus control has two displays. A dedicated LED upper display shows the oven temperature. A two-line LCD lower display provi

Strany 19 - Startup

18 Outputs The Protocol Plus control has seven different outputs available. Heating output: The control output is a DC voltage open-collector out

Strany 20

19 Relay (Continued) Use the Relay Card Optional Ay p/n 144562 to add relays to the standard controller. Each relay card contains two relays (maximum

Strany 21 - Theory of Control Operation

20 INSTRUCTIONS Start-Up These instructions are provided as a quick reference for operating the Protocol Plus control. If the Profile Mode is to be

Strany 22

21 Operation Manual Mode Press the Select key until Manual is displayed (note you can press the Run key at any time to activate Manual Mode). 1.

Strany 24 - Indicators

22 Timer Mode 1. Press the Select key until Timer is displayed (note you can press the Run key at any time to activate Timer Mode). 2. Press the

Strany 25 - Key Functions

23 Profile Mode 1. Press the Select key until Profile is displayed. “None” may be displayed if a profile has not been selected or no profiles ente

Strany 26 - Outputs

24 Note that once you activate Auto Start, you can continue to use all operating modes as normal. If an operating mode is running at the time of a

Strany 27 - Optional Software

25 Instructions for Setup Mode Pages Program Page Programming of the profiles is provided on the Program Page. Eight profiles are available with up

Strany 28 - Start-Up

26 Menu Item Display Description Ramp Time Seg 1 Pro-1 Seg-1 Ramp Time Ramp time for segment 1 of profile Event 1 Set Value* Pro-1 Seg-1 Ramp Event

Strany 29 - Operation

27 Profile # There are eight profiles available. Segment# Recipe segments 1 through 8 may be programmed, each with its own set of events, ramp and

Strany 30 - Timer Mode

28 Sample Profile Programming Table Profile Number____1______ Profile Name__________ Seg-ment Ramp Soak Time Events Temp-erature Time Events 1

Strany 31 - Auto Start Mode

Auto Start Page The Auto Start Page can be configured to automatically start Manual, Timer or Profile Mode at a specified time and day. Note that if

Strany 32

30 Menu Item Display Description Range Enable Autostart Auto Start Enable Enable (yes) or disable (no) the Autostart function No, Yes Sunday mode Au

Strany 33 - Program Page

31 PID Page The PID Page contains parameters which control the response to the setpoint and process variable input. To access the PID Page, enter t

Strany 35 - Profile #

32 Control Page The Control Page contains various parameters which control miscellaneous functions. To access the Control Page, enter the Setup Mode

Strany 36 - Sample Profile

33 Communication Page (optional) The Communication Page contains parameters for the communications feature. To access the Communications Page, enter

Strany 37 - Auto Start Page

34 Relay Outputs Page (optional) The Relay Outputs Page configures the four alarm/event outputs. Each output has a dedicated indicator light and can

Strany 38

35 Test Page The Test Page contains parameters which allow manual control of the heat control and optional relay outputs and should be used only for

Strany 39 - PID Page

36 Zone Calibration Page The Zone Calibration Page allows adjustment of the displayed temperature versus the actual temperature measured by the cont

Strany 40 - Control Page

37 As an example, the control is displaying 400°F with the setpoint being 400°F, but the center of the oven chamber is actually 395°F. This can occu

Strany 41 - Real Time Clock Page

38 Sensor Calibration Page The Sensor Calibration Page has parameters which can change the internal calibration of the temperature sensor input sign

Strany 42

39 19. Connect a calibration instrument with a type J thermocouple output to the control sensor input. 20. Connect a voltage measurement device to

Strany 43 - Test Page

40 Enable Page The Enable Page controls access to the other Setup Pages. The setpoint minimum and maximum values, and the security passwords are als

Strany 44 - Zone Calibration Page

41 Digital Inputs (optional) The Protocol Plus control can be run by external inputs wired to the control from an external source such as a PLC or c

Strany 45

i PREFACE This manual is your guide to the Despatch oven. It is organized to give you the information you need quickly and easily. The INTRODUCTION

Strany 46 - Sensor Calibration Page

42 Error Messages and Alarms The Alarm Status Hi-limit LED is flashing. This indicates a problem with the thermocouple, or the Hi-limit setpoint ha

Strany 47

43 Quick Reference and Default Values Program Page Menu Item Display Default Range Setting Ramp Time Seg 1 Pro-1 Seg-1 Ramp Time 00:00 00m00s to 99h

Strany 48 - Enable Page

44 Programming Table Profile Number__________ Profile Name__________ Seg-ment Ramp Soak Time Events Temp-erature Time Events 1 2 3 4 1 2 3 4 1

Strany 49 - Digital Inputs (optional)

45 Autostart Menu Item Display Default Range Setting Enable Autostart Auto Start Enable No No, Yes Sunday mode Auto Start Sun Mode Off Off, Manual,

Strany 50 - Error Messages and Alarms

46 Control Menu Item Display Default Range Setting Cycle Time Control Cycle Time 1 1 to 60 seconds High limit setpoint Control Hi-Lim SP Max HiLimSP

Strany 51

47 Real Time Clock Menu Item Display Default Range Setting Day of the week Clock Day Mon Sun, Mon, Tue, Wed, Thu, Fri, Sat Time of day Clock HH:MM 0

Strany 52

48 Test Menu Item Display Default Range Setting Heater output Test HeatOut Off On High limit relay Test HiLimOut Off On Relay 1 output Test Rly1 Ou

Strany 53 - Autostart

49 Enable Page Menu Item Display Default Range Setting Profiles Enable Profile 1-8 Yes Yes or No Autostart Enable Auto Start No Yes or No ** PID En

Strany 54 - Communication (optional)

50 Technical Specifications UL, cUL listed: UL file E136675 CE compliance to: EMC Directive 89-366/EEC European Standard EN55011/1991 European

Strany 55

51 Maintenance Do not attempt any service on this oven before opening the main power disconnect switch. Checklist Keep equipment clean. Grad

Strany 56

ii Revision B: Corrected Sensor Calibration Page instruction Revision C: Added definitions and sample profile to Program Page description Revision

Strany 57

52 Tests Tests should be performed carefully and regularly. The safety of personnel as well as the condition of equipment may depend upon the prope

Strany 58 - Technical Specifications

53 Replacement Parts To order or return parts, contact the Service Products Division at Despatch. The Service Products features our Response Cent

Strany 59 - Checklist

54 Protocol Plus™ Instrument (Tools needed: 1/4" socket driver with #1 bit, #2 Phillips screwdriver) 1. Disconnect the power. 2. Remove the

Strany 60

55 Fan Motor (Tools needed: Screwdriver, 5/32 inch Allen wrench, one quarter (¼) inch socket set) 1. Remove the chamber floor plate. a. Remove

Strany 61 - Replacement

56 c. Reattach the motor lead wires to the terminal strip. 11. Replace the oven bottom (LFD1-42) or control panel front (LFD2-11 or 2-24). 12. T

Strany 62 - Protocol Plus™ Instrument

57 Troubleshooting Equipment which operates for long periods of time may develop problems. Below are possible problems and suggested solutions. If

Strany 63 - Fan Motor

58 Difficulty Probable Cause Suggested Remedy Excess surface or door temp. Door seal deterioration Replace door seal. Improper airflow Fan motor fai

Strany 64

59 APPENDIX Temperature Scale Conversion (C/F) The Protocol Plus controller can be operated in either C or F. The default setting for the controll

Strany 65 - Troubleshooting

60 Optional MRC5000 Recorder Setup The temperature is retransmitted to the Recorder from the Controller. Set up the Recorder as follows: 1. Make

Strany 66

iii TABLE OF CONTENTS INTRODUCTION ...

Strany 67 - APPENDIX

iv Control Page ....... 32 Communication Page (optiona

Strany 68

1 INTRODUCTION This section provides an overview of the Despatch LFD Series forced air oven. The LFD Series Ovens have the most effective heat dist

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