SEQUENCE OF OPERATION

IMPINGER X2 OVENS

3240-2*

230VAC

50 HZ.

1 PHASE

3262-2*

230VAC

50 HZ.

1 PHASE

3270-2*

230VAC

50 HZ.

1 PHASE

 

*NOTE:

 

Model number ending in TS indicates top belt is split belt

 

Model number ending in SB indicates bottom belt is split belt

 

Model number ending in SS indicates both belts are split belts

 

 

POWER SUPPLY

Electrical power to be supplied to the oven by a three conductor service for single phase

 

or a five conductor service for three phase.

 

Black conductor is hot.

 

Red conductor is hot.

 

Orange conductor is hot.

 

White conductor is neutral.

 

Green conductor is ground.

MAIN FAN CIRCUIT

Power is permanently supplied to the normally open contacts of the main fan relay.

 

Power is also supplied, through a 2 amp. fuse, to the 30 minute time delay relay.

 

Closing the oven fan switch enables the 30 minute time delay relay. The 30 minute time

 

delay relay supplies 220/240VAC to the coil of the main fan relay. These normally open

 

contacts now close energizing the main fan motor. Closing the main fan switch also

 

supplies 220/240VAC to the burner and conveyor switches.

BURNER CIRCUIT

Closing the main fan switch supplies 220/240VAC to the normally open burner switch.

 

Closing the burner switch supplies 220/240VAC, through the EMI filter, to the electronic

 

temperature control. 220/240VAC is supplied, through the air pressure switch and the

 

oven cavity hi-limit thermostat, to the burner control. When the burner control is

 

energized, 220/240VAC is supplied to the burner blower motor. The normally open air

 

pressure switch closes upon sensing air pressure. After a pre-purge of 30 seconds, the

 

pilot valve and spark are energized. Ignition should now occur. After the pilot flame is

 

proven, the main valve is energized.

TEMPERATURE CONTROL

Closing the main fan switch and burner switch supplies 220/240VAC to the electronic

 

temperature control. The electronic temperature control is adjusted to the desired

 

temperature. The thermocouple will provide varying millivolts to the electronic

 

temperature control. The temperature control supplies 220/240VAC to the temperature

 

regulation valve at intermittent intervals to maintain desired temperature.

CONVEYOR DRIVE

THE OVEN WILL CONTAIN BETWEEN TWO AND FOUR SEPARATE CONVEYOR

 

DRIVE SYSTEMS. THE SEQUENCE OF OPERATIONS WILL BE THE SAME FOR

 

EACH MOTOR SYSTEM.

 

Closing the main fan switch supplies 220/240VAC, through the EMI filter, to the normally

 

open conveyor switch, through a 2 Amp. fuse, to the conveyor control. AC voltage is

 

converted to DC voltage and DC voltage is supplied, at terminals A+ and A-, to the

 

conveyor motor. Adjusting the conveyor control will vary the DC output voltage. The

 

speed of the motor will increase or decrease as the DC voltage from the conveyor

 

control increases or decreases.

NOTE:

The conveyor control uses a hall effect sensor and magnet, mounted on the conveyor

 

motor that senses motor speed. The sensor detects any change in motor load (± RPM)

 

and the voltage to the motor is adjusted accordingly.

AUTOMATIC COOL DOWN

When the oven is started, the 30 minute time delay relay is enabled, permitting the oven

 

fan to operate for approximately 30 minutes after the oven is shut off, to cool the oven.

 

When the oven is shut off, the 30 minute time delay relay will keep the coil of the main

 

fan relay closed for 30 minutes, maintaining operation of the main fan motor.

Impinger X2 – Analog Service Manual – Dom & Int’l

3

Page 3
Image 3
Lincoln 3270-2, 3262 service manual 3240-2 230VAC 50 HZ

3240-2, 3262, 3270-2 specifications

The Lincoln 3270-2 is a state-of-the-art welding machine designed for professional welders who require precision, efficiency, and reliability in their welding tasks. This versatile unit is particularly well-suited for MIG and TIG welding, making it an essential tool for both industrial applications and hobbyist projects.

One of the standout features of the Lincoln 3270-2 is its advanced inverter technology. Inverter technology allows for a more compact design while delivering high power output. This results in a machine that is lightweight and portable, yet capable of handling demanding welding jobs with ease. The inverter system also enhances efficiency, reducing overall energy consumption while maintaining excellent welding performance.

The 3270-2 is equipped with a user-friendly interface, providing welders with intuitive controls to easily adjust settings such as voltage, wire feed speed, and gas flow. Its digital display allows for quick monitoring of parameters, enabling users to make precise adjustments on the fly. This feature is especially beneficial for novices who may need a bit of guidance while getting accustomed to the different welding processes.

Another notable characteristic of the Lincoln 3270-2 is its compatibility with a wide range of materials and thicknesses. It effectively welds various metals, including mild steel, stainless steel, and aluminum, making it suitable for numerous applications. The machine can effortlessly adapt to a variety of welding tasks, from thin sheet metal work to thicker structural components.

Safety is a top priority in the design of the 3270-2. It comes equipped with several integrated safety features, including thermal overload protection, which prevents the machine from overheating during extended use. This attention to safety helps to protect both the welder and the equipment, ensuring a reliable and long-lasting machine.

In addition to its impressive technical specifications, the Lincoln 3270-2 boasts exceptional build quality. The robust construction of the unit ensures it can withstand the rigors of a busy workshop or job site. Its durable outer casing provides protection against dust and debris, enhancing its longevity.

With its combination of portability, advanced technology, user-friendly interface, and robust performance, the Lincoln 3270-2 stands out as an ideal choice for professional welders. Whether for fabricating, repairs, or maintenance, this welding machine is designed to meet the high demands of modern welding practices, delivering both efficiency and superior weld quality.