Lincoln Series 1000, Series 1200 service manual Sequence of Operations 1042 / 1043 / 1242

Page 10

SEQUENCE OF OPERATIONS 1042 / 1043 / 1242 / 1243

 

MODEL 1042 - 240V - 50HZ - NATURAL GAS

 

MODEL 1043 - 240V - 50HZ - L.P. GAS

 

MODEL 1242 - 240V - 50HZ - NATURAL GAS/DUAL BELT

 

MODEL 1243 - 240V - 50HZ - L.P.GAS/DUAL BELT

 

 

 

POWER SUPPLY

 

Electrical Power to be supplied to the Oven by a three conductor service.

 

 

Black conductor is Hot

 

 

Red conductor is Neutral

 

 

Green conductor is Ground

CONTROL BOX AUTO

 

When the temperature in the Control Box reaches 120°F + 3°, the Cooling Fan

COOL DOWN

 

Thermostat will switch power to the Control Box Cooling Fan. The Thermostat will

 

 

interrupt power to the Cooling Fan when the Control Box temperature falls to 100°F +

 

 

3°.

MAIN FAN CIRCUIT

 

Electrical power is permanently supplied to the normally open contacts of the Double

 

 

Pole Main Fan Relay, the Cooling Fan Thermostat, the normally open Double Pole

 

 

Main Fan Switch, and the normally open Cool Down Thermostat (thermostat closes

 

 

at 160°F and opens at 140°F). Closing the Main Fan Switch supplies 240 VAC

 

 

through a 3A Fuse to the primary of the control circuit Step Down Transformer. The

 

 

Transformer steps the voltage down to 120 VAC for the control circuit. 120 VAC is

 

 

supplied to the coil of the Double Pole Main Fan Relay. The coil of the relay is

 

 

energized. The normally open contacts now close, energizing the Main Fan Motor

 

 

through one 10A Fuse. Closing the Fan Switch also supplies power to the Cooling

 

 

Fan, the 12.6 VAC Transformer the Burner and Conveyor Switches.

TRANSFORMER (12.6

 

Upon closure of the Fan Switch, 120 VAC is supplied to the primary of the 12.6 VAC

VAC)

 

Transformer. The Transformer steps the voltage down to 12.6 VAC (normally 13 to

 

 

14 VAC) with a center tap, and supplies power to the Time/Temp Display. The

 

 

voltage from each leg of the Transformer©s secondary to the center tap should be

 

 

one half of the secondary voltage.

BURNER CIRCUIT

 

Closing the Fan Switch and the normally open Burner Switch supplies 120 VAC

 

 

through the Air Pressure Switch, to the Temperature Control Board, the normally

 

 

open contacts of the Burner Motor Relay (Burner Motor Relay discontinued after S/N

 

 

14791) and the primary of the 24 VAC Transformer. The transformer©s secondary

 

 

supplies 24 VAC to the burner motor relay coil (the normally open contacts close

 

 

within 30 seconds), and the normally open Centrifugal Switch. When the relay

 

 

contacts close, the Burner Blower Motor is energized. As this motor reaches approx.

 

 

1,600 R.P.M its internal centrifugal switch closes, supplying 24 VAC to the Gas

 

 

Control Valve. When the Gas Control Valve is supplied with 24 VAC, the pilot valve

 

 

is energized, and the igniter circuit is energized. Ignition should now occur. After pilot

 

 

flame is proven, the Main Gas Valve is energized. The Burner Indicator Light is also

 

 

energized.

TEMPERATURE

 

Closing the Fan Switch and Burner Switch supplies 120 VAC to the Temperature

CONTROL

 

Control Board. The 1K or 1000 ohm Temperature Potentiometer is adjusted to

 

 

desired temperature. The Thermocouple will provide varying millivolts to the

 

 

Temperature Controller. The Temperature Controller supplies 120 VAC to the

 

 

Solenoid Valve at intermittent intervals to maintain desired temperature.

 

 

Closing the fan switch and the normally open conveyor switch supplies 120 VAC to

CONVEYOR DRIVE

 

the Motor Control Board. AC volts are converted to DC volts and are supplied to the

(S/N Q14790 & Below,

 

Conveyor Motor at terminals A+ and A-. Adjustment of the Speed Control

1200 series

 

Potentiometer (5,000 ohm 10 turn ) will change resistance at terminals P1, P2, and

S/N Q14973 & Below,

 

P3 varying the DC voltage to the motor. The speed of the conveyor motor will

1000 series)

 

increase or decrease as the DC voltage from the board increases or decreases

 

 

respectively. As the motor turns, it drives both the reducer gearbox and the tach.

(S/N Q14791 & Above,

 

generator. The tach. generator is a DC voltage generator which supplies a voltage to

1200 series

 

the DC motor control board and is used as a reference for maintaining a constant

S/N Q14974 & Above,

 

conveyor speed.

1000 series refer to

 

 

Pg. 9)

 

 

10

Impinger I -–1000 Series Service Manual - International

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Contents Impinger Conveyor Ovens Table of Contents Conveyor Drive Sequence of Operations 1002/1003Burner Circuit 100 toSequence of Operations Heat Circuit TemperatureSequence of Operations 1028 / 1029 / 1228 ControlTime Temp Sequence of Opertions TIME/TEMPSequence of Operations / 1033, 1034, 1046 TRANSFORMER12.6V Sequence of Operations 1042 / 1043 / 1242 Model 1242 240V 50HZ Natural GAS/DUAL BeltTIME/TEMP Schematic / 1002 Schematic / 1006 to Serial Numbers Q14279 Schematic / 1028, 1029, S/N Q19071 & below Schematic / 1028, 1029, S/N Q19078 & Above Schematic / 1030, to S/N Q17170 Schematic / 1030, S/N Q17171 & Above Schematic / 1032. S/N Q19077 & below Schematic / 1032, S/N Q19078 & Above Schematic / 1033, 1034, 1046 Schematic / 1042, 1043, S/N Q14279 & below Schematic / 1042, 1043, S/N Q14280 & Above Schematic / 1228 , S/N Q14790 & below Schematic / 1228, 1229, S/N Q14791 & Above Schematic / 1242 Troubleshooting Guide 1000 & 1200 / GAS Ovens Symptom Possible Cause EvaluationIgnition Control For ovens withJohnson Controls Honeywell IgnitionControl Mechanical Temperature ControlFlameFor ovens with ThermostatCode Model 1030 Symption Possible Cause EvualationPage Page Page Page Page Page Page Troubleshooting Guide 1000 & 1200 Series / Electric Ovens Page Page Page Page Page Page Troubleshooting / GAS Ovens 1033, 1034, 1046 Page Page Page Page Page Page CAPACITOR, Motor REMOVAL, Installation & AdjustmentsMOTOR, Main FAN FAN, MainRELAY, D.P.S.T Cool Down SwitchAbove GAS Above Electric Cooling FAN, Control BOXBurner Blower Motor AIR Pressure Switch To Remove the Blower Wheel for Periodic CleaningBlower WHEEL, Burner Manifold Pressure Adjustment Burner AssemblyManifold PRESSURE-ADJUSTMENT GAS Control ValveTemperature Control Potentiometer Replacement Temperature Control Valve Robert ShawTemperature Control Board Solenoid ValveMercury Contactor THERMOCOUPLE- ReplacementThermocouple Measurement Chart Heating ElementIgnition Control Flame Sensor 24V GNDBurner Light 24 VAC GAS Ovens Burner IgnitorTransformer 120/24 VAC Heat Light 125 VAC Electric OvensMain Orifice Burner Conveyor Motor Replacement Bodine SNConveyor Motor Replacement Baldor 1000 Series SN 4390 Potentiometer Conveyor Speed ControlOptical Encoder Assembly Coupling and Encoder DiscMotor Control Board Calibration TACH. GeneratorConveyor Motor Control Board SN 100 to 4389 Bodine SystemREG MIN MAX Style 1 Control Board AdjustmentMotor Control Board Style 2 and Style 3 Control Board Adjustment StyleStyle DIP Switches Control Switch Position OFF BEARING, Conveyor Reversing Conveyor DirectionMini Circuit Breaker Drive ENDTRANSFORMER-STEPPER Motor Control Hall Effect Sensor ReplacementBEARING, Conveyor SN 2164 and Above OLD StyleOven Temperature Temperature Gauge ReplacementThermistor Replacement TRANSFORMER, TIME/TEMP. DisplayALL 1000 & 1200 Series Ovens Switch SettingsType OFF SWITCH, DISPLAY, SET Procedure for USE of TIME/TEMP. SimulatorSwitch Replacement FAN, HEAT, Conveyor Dip SwitchSwitch Replacement FAN Switch Update GAS Valve Replacement and Adjustments Spark Generator Replacement Ignition Control ReplacementHigh Limit Thermostat Replacement Solenoid Valve ReplacementIgniter Sensor Assembly Replacement Burner Alarm Light ReplacementPilot Light 220V Replacement Burner Blower Motor ReplacementRELAY, GAS Control Replacement Model 1046,1047 Relay ASSEMBLY, Burner Blower Motor ReplacementTemperature Control Replacement Time Delay RELAY, 20 Minute ReplacementParts / Model Series 1000 & 1200 General Letter DescriptionBlow UP / 1000, 1200 General Parts / Model 1002-1003 , S/N 2584 to Blow UP / 1002, 1003 S/N 2584 to Parts / Model 1002-1003, S/N 4390 & UP SeeBlow UP / 1002, 1003 S/N 4390 & Above Parts / Model SeeBlow UP Parts Blow UP / 1028, 1029 PARTS/ Model Blow UP Parts / 1042 BLOW-UP / 1042 Parts / 1033, 1034, 1046 BLOW-UP / 1033, 1034, 1046 Parts Blow UP / 1228 Parts / 1242 Blow UP / 1242 Parts / Oven Back GAS Blow UP / Oven Back GAS Parts / Oven BACK- Electric Blow UP / Oven Back Electric Parts / Conveyor Motor Assembly S/N 4390 & Above Blow UP / Conveyor Motor Assembly S/N 4390 & Above Parts / Series 1000 Conveyor Blow UP / Series 1000 Conveyor Parts / Series 1200 Conveyor Control Blow UP / Series 1200 Conveyor Control Parts / Series 1200 Conveyor Blow UP / Series 1200 Conveyor 112

Series 1000, Series 1200 specifications

The Lincoln Series 1200 and Series 1000 are two distinguished models in the range of Lincoln Electric welding machines, epitomizing quality, versatility, and advanced technology for both industrial and residential welding applications.

The Lincoln Series 1200 is renowned for its robust build and high-performance capabilities. One of its main features is the ability to perform both MIG (Metal Inert Gas) and stick welding processes, making it a versatile option for various welding requirements. It incorporates an intuitive control panel that allows for easy settings adjustments, ensuring operators can swiftly adapt to different materials and thicknesses. The Series 1200 is equipped with a powerful drive system to provide smooth wire feeding, minimizing downtime due to jams or misfeeds. Additionally, its high-duty cycle support allows continuous operation, making it an ideal choice for professional welders and fabrication shops.

In terms of technology, the Series 1200 employs advanced inverter technology that enhances energy efficiency while reducing the machine’s overall weight. This results in portability without compromising power, making it a practical choice for on-site tasks. Moreover, the machine features an automatic voltage adjustment that optimizes performance based on the input voltage, ensuring reliable operation even under fluctuating power conditions.

On the other hand, the Lincoln Series 1000 is specifically designed for entry-level users and small projects. It shines with its user-friendly interface, which simplifies the welding process for beginners. This model typically includes pre-set parameters and an easy-to-read display, enabling novice operators to achieve excellent welds with minimal experience. Despite its entry-level focus, the Series 1000 does not skimp on performance, offering dependable results across various materials.

Both the Series 1200 and Series 1000 incorporate safety features, including thermal overload protection, ensuring that users can operate the machines with peace of mind. Their durable construction allows for prolonged use in tough work environments without sacrificing reliability.

In conclusion, the Lincoln Series 1200 and Series 1000 cater to a wide range of welding needs, from professional applications to home projects. Their respective features and technologies present options that can fit various skill levels while delivering exceptional welding performance and longevity. Whether you are a seasoned professional or a hobbyist, Lincoln Electric provides reliable solutions to meet your welding requirements.
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