Lincoln Series 1200, Series 1000 service manual Sequence of Opertions, Time/Temp

Page 7

 

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 normally open Burner Switch supplies 220 VAC, through the gas

 

pressure-proving switch, and through the Main Fan Air Pressure Switch, to the

 

Ignition Control. The combustion motor relay is energized, its normally open contacts

 

now close, supplying120 VAC to the combustion motor. The normally open

 

combustion air switch closes upon sensing air. After pre-purge period of between 30

 

and 60 seconds, the Ignition Transformer is energized and the Main Gas Valve is

 

energized. Ignition should now occur.

TEMPERATURE

Closing the Fan Switch supplies (through the Step down Transformer) 120 VAC to

CONTROL

the Temperature Control Board. The 2.5K 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.

CONVEYOR DRIVE

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

(S/N4390-Q17170)

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

 

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

 

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

 

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

 

will 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.

(Conveyor Drive

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

Q171701 & Above See

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

Page 9)

conveyor speed.

(Time/Temp Display

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

Q17171 & Above See

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

Page 9)

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.

TIME/TEMP

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

DISPLAY(Q17171 &

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

Above See Page 9

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 OPERTIONS 1032

 

 

MODEL 1032 - 380Y/220 VAC - 50 HZ - 3 PHASE

 

 

 

 

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 one 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 220VAC 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

 

Impinger I -–1000 Series Service Manual - International

7

Page 6 Page 8
Image 7
Page 6 Page 8
Contents Impinger Conveyor Ovens Table of Contents 100 to Sequence of Operations 1002/1003Burner Circuit Conveyor DriveSequence of Operations Control TemperatureSequence of Operations 1028 / 1029 / 1228 Heat CircuitTime 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 OvensHoneywell Ignition For ovens withJohnson Controls Ignition ControlControl Thermostat Temperature ControlFlameFor ovens with MechanicalCode 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 FAN, Main REMOVAL, Installation & AdjustmentsMOTOR, Main FAN CAPACITOR, MotorCooling FAN, Control BOX Cool Down SwitchAbove GAS Above Electric RELAY, D.P.S.TBurner Blower Motor AIR Pressure Switch To Remove the Blower Wheel for Periodic CleaningBlower WHEEL, Burner GAS Control Valve Burner AssemblyManifold PRESSURE-ADJUSTMENT Manifold Pressure AdjustmentSolenoid Valve Temperature Control Valve Robert ShawTemperature Control Board Temperature Control Potentiometer ReplacementHeating Element THERMOCOUPLE- ReplacementThermocouple Measurement Chart Mercury ContactorIgnition Control 24V GND Flame SensorHeat Light 125 VAC Electric Ovens Burner IgnitorTransformer 120/24 VAC Burner Light 24 VAC GAS OvensPotentiometer Conveyor Speed Control Conveyor Motor Replacement Bodine SNConveyor Motor Replacement Baldor 1000 Series SN 4390 Main Orifice BurnerCoupling and Encoder Disc Optical Encoder AssemblySN 100 to 4389 Bodine System TACH. GeneratorConveyor Motor Control Board Motor Control Board CalibrationREG MIN MAX Style 1 Control Board AdjustmentMotor Control Board Style Style 2 and Style 3 Control Board AdjustmentStyle DIP Switches Control Switch Position OFF Drive END Reversing Conveyor DirectionMini Circuit Breaker BEARING, ConveyorOLD Style Hall Effect Sensor ReplacementBEARING, Conveyor SN 2164 and Above TRANSFORMER-STEPPER Motor ControlTRANSFORMER, TIME/TEMP. Display Temperature Gauge ReplacementThermistor Replacement Oven TemperatureALL 1000 & 1200 Series Ovens Switch SettingsType OFF Procedure for USE of TIME/TEMP. Simulator SWITCH, DISPLAY, SETSwitch Replacement FAN, HEAT, Conveyor Dip SwitchSwitch Replacement FAN Switch Update GAS Valve Replacement and Adjustments Solenoid Valve Replacement Ignition Control ReplacementHigh Limit Thermostat Replacement Spark Generator ReplacementBurner Blower Motor Replacement Burner Alarm Light ReplacementPilot Light 220V Replacement Igniter Sensor Assembly ReplacementTime Delay RELAY, 20 Minute Replacement Relay ASSEMBLY, Burner Blower Motor ReplacementTemperature Control Replacement RELAY, GAS Control Replacement Model 1046,1047Letter 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.
Top Page Image Contents