Lincoln Series 1000, Series 1200 Sequence of Operations / 1033, 1034, 1046, Heat Circuit

Page 8

 

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 368°C) through the 3A Fuse, to 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 L2 line of the Contactor coil at

 

 

intermittent intervals to maintain desired temperature.

 

CONVEYOR DRIVE

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

 

(S/N 4390 AND UP)

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 gear box 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.

 

TIME TEMP DISPLAY

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

 

 

VAC to the primary of the12.6 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 / 1033, 1034, 1046, 1047

 

 

MODEL 1033 / 220 VAC - 50HZ / NATURAL GAS

 

 

MODEL 1034 / 220 VAC - 50HZ / L.P. GAS

 

 

MODEL 1046 / 240 VAC - 50HZ / NATURAL GAS

 

 

MODEL 1047 / 240 VAC - 50HZ / L.P. GAS

 

POWER SUPPLY

Electrical Power to be supplies to the oven by a three-conductor service.

 

 

Brown conductor is Hot

 

 

Blue 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 oven

 

 

fan motor relay, the Cooling Fan Thermostat, and the normally open Oven Fan

 

 

Switch. Closing the oven fan switch supplies 220 VAC, through a 3 AMP Fuse, to the

 

 

primary of the Power Transformer (the transformer steps the voltage down to 120

 

 

VAC for the control circuit). 120 VAC is supplied to the Cooling Fan, the normally

 

 

open Conveyor Switch, the Electronic Temperature Control, and to the coil of the

 

8

Impinger I -–1000 Series Service Manual - International

 

Page 7 Page 9
Image 8
Page 7 Page 9
Contents Impinger Conveyor Ovens Table of Contents Sequence of Operations 1002/1003 Burner CircuitConveyor Drive 100 toSequence of Operations Temperature Sequence of Operations 1028 / 1029 / 1228Heat Circuit 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 EvaluationFor ovens with Johnson ControlsIgnition Control Honeywell IgnitionControl Temperature Control FlameFor ovens withMechanical 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 REMOVAL, Installation & Adjustments MOTOR, Main FANCAPACITOR, Motor FAN, MainCool Down Switch Above GAS Above ElectricRELAY, D.P.S.T Cooling FAN, Control BOXBurner Blower Motor Blower WHEEL, Burner To Remove the Blower Wheel for Periodic CleaningAIR Pressure Switch Burner Assembly Manifold PRESSURE-ADJUSTMENTManifold Pressure Adjustment GAS Control ValveTemperature Control Valve Robert Shaw Temperature Control BoardTemperature Control Potentiometer Replacement Solenoid ValveTHERMOCOUPLE- Replacement Thermocouple Measurement ChartMercury Contactor Heating ElementIgnition Control Flame Sensor 24V GNDBurner Ignitor Transformer 120/24 VACBurner Light 24 VAC GAS Ovens Heat Light 125 VAC Electric OvensConveyor Motor Replacement Bodine SN Conveyor Motor Replacement Baldor 1000 Series SN 4390Main Orifice Burner Potentiometer Conveyor Speed ControlOptical Encoder Assembly Coupling and Encoder DiscTACH. Generator Conveyor Motor Control BoardMotor Control Board Calibration SN 100 to 4389 Bodine SystemMotor Control Board Style 1 Control Board AdjustmentREG MIN MAX Style 2 and Style 3 Control Board Adjustment StyleStyle DIP Switches Control Switch Position OFF Reversing Conveyor Direction Mini Circuit BreakerBEARING, Conveyor Drive ENDHall Effect Sensor Replacement BEARING, Conveyor SN 2164 and AboveTRANSFORMER-STEPPER Motor Control OLD StyleTemperature Gauge Replacement Thermistor ReplacementOven Temperature TRANSFORMER, TIME/TEMP. DisplayType OFF Switch SettingsALL 1000 & 1200 Series Ovens SWITCH, DISPLAY, SET Procedure for USE of TIME/TEMP. SimulatorSwitch Replacement FAN Switch Update Dip SwitchSwitch Replacement FAN, HEAT, Conveyor GAS Valve Replacement and Adjustments Ignition Control Replacement High Limit Thermostat ReplacementSpark Generator Replacement Solenoid Valve ReplacementBurner Alarm Light Replacement Pilot Light 220V ReplacementIgniter Sensor Assembly Replacement Burner Blower Motor ReplacementRelay ASSEMBLY, Burner Blower Motor Replacement Temperature Control ReplacementRELAY, GAS Control Replacement Model 1046,1047 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.
Top Page Image Contents