Lincoln Series 1200 Sequence of Operations 1028 / 1029 / 1228, Heat Circuit, Temperature, Control

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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.

 

Generator. The Tach. Generator is a DC voltage generator, which supplies a voltage

 

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

 

conveyor speed.

TlME/TEMP DISPLAY

The Time/Temp. Display is energized when the Fan Switch is closed, supplying 120

 

VAC to the primary of the 12.6 volt Transformer. The secondary output of the

 

transformer, normally 13 to 14 VAC (depending on input), with a center tap is

 

supplied to terminals 1,2, and 3 of the Time/Temp Display. The center tap is terminal

 

2. The display works on a balanced input and center tap voltage to each leg must be

 

1,2 the total reading.

 

The speed side of the Time/Temp. Display uses a slotted disc (cemented to tach.

 

coupling) to break the infra-red light beam of the optical switch (mounted on gear

 

motor) producing electrical pulses that are transmitted to the display. The display

 

converts these pulses into a read-out of minutes and seconds.

 

The temperature portion of the display uses a Thermistor Probe to sense oven

 

temperature. The thermistor outputs a resistance proportional to the oven

 

temperature. This resistance is then converted by the display into a temperature

 

reading.

SEQUENCE OF OPERATIONS 1028 / 1029 / 1228 / 1229

MODEL 1028 - 380Y/220 VAC - 50 HZ - 3 PHASE

MODEL 1029 - 415Y/240 VAC - 50 HZ - 3 PHASE

MODEL 1228 - 380Y/220 VAC - 50 HZ - 3 PHASE - DUAL BELT

MODEL 1229 - 415Y/240 VAC - 50 HZ - 3 PHASE - DUAL BELT

POWER SUPPLY

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

 

Black conductor is Hot

 

Red conductor is Hot

 

Orange conductor is Hot

 

White conductor is Dedicated Neutral

 

Green conductor is Ground

 

 

MAIN FAN CIRCUIT

Electrical power is permanently supplied through 3, 50A fuses to the normally open

 

contacts of the Mercury Contactor. Power is also supplied through 1, 10A fuse to the

 

normally open contact of the Main Fan Relay, through a 1A Fuse to the normally

 

open Double Pole Main Fan Switch, and to the normally open Cool-Down

 

Thermostat (thermostat closes at 160°F and opens at 140°F.) Closing the Main Fan

 

Switch supplies 220 or 240 VAC 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 Main Fan Relay. The coil of the relay is

 

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

 

the Main Fan Switch also supplies power to the 12.6 VAC Transformer, the Control

 

Box Cooling Fan, and the Heat 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.

HEAT CIRCUIT

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

 

through the normally open Air Pressure Switch, and the normally closed Hi-Limit

 

Thermostat (manually re-settable, opens at 190°F) and, the 3A Fuse, to the L1

 

terminal of the Temperature Control Board, the coil of the Mercury Contactor, and to

 

the Heat Indicator Light.

TEMPERATURE

When the Heat Switch is closed, 120 VAC is supplied to the Temperature Control.

CONTROL

The Temperature Control Potentiometer (2.5K ohm) is adjusted to desired

 

temperature. The Thermocouple will provide varying millivolts to the Temperature

 

Controller. The Temperature Controller switches the L 2 line of the Contactor coils at

 

intermittent intervals to maintain desired temperatures.

Impinger I -–1000 Series Service Manual - International

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Contents Impinger Conveyor Ovens Table of Contents Burner Circuit Sequence of Operations 1002/1003Conveyor Drive 100 toSequence of Operations Sequence of Operations 1028 / 1029 / 1228 TemperatureHeat Circuit ControlTime Temp TIME/TEMP Sequence of OpertionsSequence of Operations / 1033, 1034, 1046 TRANSFORMER12.6V Model 1242 240V 50HZ Natural GAS/DUAL Belt Sequence of Operations 1042 / 1043 / 1242TIME/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 Symptom Possible Cause Evaluation Troubleshooting Guide 1000 & 1200 / GAS OvensJohnson Controls For ovens withIgnition Control Honeywell IgnitionControl FlameFor ovens with Temperature ControlMechanical ThermostatCode Symption Possible Cause Evualation Model 1030Page 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 MOTOR, Main FAN REMOVAL, Installation & AdjustmentsCAPACITOR, Motor FAN, MainAbove GAS Above Electric Cool Down SwitchRELAY, D.P.S.T Cooling FAN, Control BOXBurner Blower Motor Blower WHEEL, Burner To Remove the Blower Wheel for Periodic CleaningAIR Pressure Switch Manifold PRESSURE-ADJUSTMENT Burner AssemblyManifold Pressure Adjustment GAS Control ValveTemperature Control Board Temperature Control Valve Robert ShawTemperature Control Potentiometer Replacement Solenoid ValveThermocouple Measurement Chart THERMOCOUPLE- ReplacementMercury Contactor Heating ElementIgnition Control 24V GND Flame SensorTransformer 120/24 VAC Burner IgnitorBurner Light 24 VAC GAS Ovens Heat Light 125 VAC Electric OvensConveyor Motor Replacement Baldor 1000 Series SN 4390 Conveyor Motor Replacement Bodine SNMain Orifice Burner Potentiometer Conveyor Speed ControlCoupling and Encoder Disc Optical Encoder AssemblyConveyor Motor Control Board TACH. GeneratorMotor Control Board Calibration SN 100 to 4389 Bodine SystemMotor Control Board Style 1 Control Board AdjustmentREG MIN MAX Style Style 2 and Style 3 Control Board AdjustmentStyle DIP Switches Control Switch Position OFF Mini Circuit Breaker Reversing Conveyor DirectionBEARING, Conveyor Drive ENDBEARING, Conveyor SN 2164 and Above Hall Effect Sensor ReplacementTRANSFORMER-STEPPER Motor Control OLD StyleThermistor Replacement Temperature Gauge ReplacementOven Temperature TRANSFORMER, TIME/TEMP. DisplayType OFF Switch SettingsALL 1000 & 1200 Series Ovens Procedure for USE of TIME/TEMP. Simulator SWITCH, DISPLAY, SETSwitch Replacement FAN Switch Update Dip SwitchSwitch Replacement FAN, HEAT, Conveyor GAS Valve Replacement and Adjustments High Limit Thermostat Replacement Ignition Control ReplacementSpark Generator Replacement Solenoid Valve ReplacementPilot Light 220V Replacement Burner Alarm Light ReplacementIgniter Sensor Assembly Replacement Burner Blower Motor ReplacementTemperature Control Replacement Relay ASSEMBLY, Burner Blower Motor ReplacementRELAY, GAS Control Replacement Model 1046,1047 Time Delay RELAY, 20 Minute ReplacementLetter Description Parts / Model Series 1000 & 1200 GeneralBlow UP / 1000, 1200 General Parts / Model 1002-1003 , S/N 2584 to Blow UP / 1002, 1003 S/N 2584 to See Parts / Model 1002-1003, S/N 4390 & UPBlow UP / 1002, 1003 S/N 4390 & Above See Parts / ModelBlow 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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