PCBRM_User_Manual_R9.pdf - 第54页

PCBRM15 & PCBRM System 5.2 User’s Manual

Chapter 4: Processes & Applications

Part No. 4005.00.906 4-11

4.9 Temperature Controller (CAL 9900)

Programmable Set Points. The Programmable Digital Readout Temperature Controller has two set

points that are programmable. Set point one (SP1) is the process temperature; set point two (SP2) is the

standby/interlock temperature. The temperature selector switch determines which set point is activated.

Process Temperature (SP1). The process temperature determines the temperature of the flowing solder

during the rework and soldering cycles. The controller is connected to a thermocouple located at the

bottom of the solder pot. The actual temperature contacting the bottom of the printed circuit board is

approximately 10°F less than the process temperature, which is factory set at 500°F.

Standby/Interlock Temperature (SP2). The standby/interlock temperatures are the same

temperature. The standby temperature minimizes oxidation by automatically reducing the temperature

when the module is not being used. The purpose of the interlock temperature is to prevent the pump

motor from operating until the solder reaches a molten condition. SP2 is factory set at 70°F less than the

process temperature (500°F - 70°F = 430°F).

To Change SP1 or SP2 –

Follow These Procedures

• SP1 Temperature:

1. With the power and reset switches on,

press the *key and the SP1 setting will flash.

2. By holding the *key down and pressing the

▼ and ▲ keys, the SP1 setting may be changed.

3. When the keys are released, the display automatically returns to actual solder temperature.

• SP2 Temperature

1. With the power and reset switched on, depress the “P” key with a pointed object. The digital

display will show numbers with a decimal point and the number to the right of the decimal point

will flash.

2. Use the ▼ and ▲ keys to bring the flashing number to 2 at the right side of the decimal point.

3. Press the *key to change the left side of the decimal. Press the ▼ and ▲ keys to set the

differential temperature (range available is 0 - 99°F).

4. Press “P” to lock in memory. Display will automatically return to actual solder temperature.

Note:

SP1 AND SP2 LIGHTS WILL REMAIN LIT UNTIL EACH TEMPERATURE IS REACHED. THE ▲ LIGHT

INDICATES A TEMPERATURE HIGHER THAN PROCESS TEMPERATURE. THE ▼ INDICATES A

TEMPERATURE LOWER THAN THE PROCESS TEMPERATURE.

PCBRM15 & PCBRM System 5.2 User’s Manual

Chapter 4: Processes & Applications

Part No. 4005.00.906 4-12

4.10 Operator Procedures

4.10.1 Safety Instructions & Recommendations

CAUTION:

OPERATION OF THIS MODULE INVOLVES PUMPING OF MOLTEN SOLDER. ALL NORMAL SAFETY

PRACTICES MUST BE OBSERVED.

Personnel

• Safety glasses should be worn at all times.

• Wear protective gloves when working with solder. Solder could contain tin and lead, which are

hazardous materials.

• Place any waste solder or dross in a heat resistant dross container.

• Always wash hands after working with solder.

• Use caution if wearing loose clothing while operating this machine as loose clothing can fall into

the molten solder. Always secure loose clothing before operating this equipment.

• Never eat, drink, or smoke while working with solder.

• Only trained operators and technicians should work on this equipment.

• Molten solder will cause severe burns. Use extreme caution when operating this equipment. Heat

resistant gloves are recommended particularly when placing and removing Flow Wells, removing

dross, adding solder or removal solder and during maintenance.

• Report any problem to supervisor.

Equipment

• Flow Wells must heat soak on pump housing before attempting to flow solder. Failure to heat

soak Flow Well can cause solder to solidify in the Flow Well openings.

• Flux vapors result from soldering or desoldering. Fresh air must be provided. A venting system or

fume extraction system is recommended.

• Slowly increase flow rate to reach proper flow for the flow well. Do not increase flow rate if solder

solidifies. Allow flow well to heat soak slowly.

• Do not allow solder to flow outside the confines of the solder pot.

• Do not cool flow well with liquid (water). Use only ambient air environment to cool flow well.

• During operation do not allow PCB to seal against flow well.

• Keep all covers on. Do not open machine covers unless you are at the Main Menu Screen for

basic maintenance.

• Keep hands clear of moving parts. Do not reach into the machine during operation.

• Do not override safety interlocks.

• Check area for any loose parts or tools that could cause mechanical interference.

• Do not place anything on the top of the machine.

• In the event of an emergency, press the Red Emergency Stop button located on the front of the

machine. Locate this Emergency Stop button before operating this machine.

• Shut off electrical power and unplug machine when servicing any area of the machine.

• If a malfunction should arise, depress the Emergency Stop button to stop operation.

• The machine should not be operated unless the solder pot cover and flow well are in place.

• Heat resistant gloves should be worn when placing and removing flow wells, removing dross, and

adding or removing solder.

• The machine should not be moved when the solder is molten.

• Refer to material safety data sheet of solder, flux, or any other product used in conjunction with

module. Follow all warning labels and instructions.

PCBRM15 & PCBRM System 5.2 User’s Manual

Chapter 4: Processes & Applications

Part No. 4005.00.906 4-13

Baffle

X-Axis Compliant Arm

Lock Knob

(right anf left sides)

4.11 Set-Up and Process a PCB (step by step)

Set-up:

NOTE:

BE CERTAIN THAT THE PUMP BAFFLE IS INSTALLED INTO THE PUMP. ADJUST Z-AXIS TO ITS

HIGHEST POSITION. INSTALL FLOW WELL AND CLEANING HOOD IF SO EQUIPPED.

1. Move X-Axis carrier all the way to the left.

2. Move the carrier arms to an approximate position on the X-Axis to hold the board.

3. Lock the left arm to the X-Axis rail.

4. Hold PCB in left arm while moving the right arm to the board. Lock right arm.