Seiko 7C17 User Manual download pdf (Page 33)

Troubleshootin

(

cont.

)

The iron tip is moving fine but the

X, Y, Z & Theta coordinates do not

seem to line up with the

programmed solder location

It is possible that a set screw on the drive gear(s) may be loose. Remove the Z

axis cover (4 screws) and tighten all metric set screws, remove the X axis front

cover plate (under Apollo logo) and tighten set screw on drive gears and

remove Y axis cover plate (behind Z axis cover) and tighten set screws as

necessary. The solder program may need to be fine tuned.

The teaching pendant is connected

to the robot but the robot will not

execute a program automatically

Normally the teaching pendant should be removed during normal operation.

During testing etc. it may be necessary to have the pendant connected. The

pendant must be in the ROB [AUTO] mode in order to execute a program.

Press the ORANGE MODE key until the LCD reads as above.

The iron tip is moving up or down

too slowly or too quickly

Flow control valves

(around rear of iron)

There are up & down flow control valves for the speed of the iron tip cylinder.

Loosen the thumb screw for the upward & downward movement cylinders,

adjust accordingly and re-tighten the locking thumb screw. Another

possibility is that the iron unit has become full of flux residue. Clean the iron

unit according to the maintenance section of this manual and follow all

preventative maintenance guidelines.

The solder feed assembly is out of

position therefore causing solder

feed errors

Tighten all set screws on solder feed assembly. The small micrometer adjusts

the solder feed position for left / right as well as up / down

The picture to the right shows the micrometer adjustment

Solder wire is jammed up in the

feeder unit

Disengage the solder feed lever. Remove the solder with small pliers,

tweezers etc. and cut the solder wire so that the end is cut clean. Re-feed the

wire through the inlet nozzle and into the feed tube. Engage the feed lever,

replace the cover & it may be necessary to press the reset button on the front

robot LED panel.

The RED LINE shows the correct path for the solder to feed. Always mount

the solder reel so that the solder feeds from the bottom of the roll and not over

the top. See photo for detailed view.

The iron unit does not retract after

soldering and/or the “RUNNING”

LED remains illuminated during

program execution

The RS-P / RS-L iron units have up & down “drum” sensors. The purpose of

the sensor is to prevent the robot from moving until the iron tip has been fully

retracted. Check the position of the sensor, it may have become loose due to

vibration. Adjust the sensor height so that it is within it’s working range

(approx. 4 mm range). There are LED’s on the sensors. Once the sensor is on

position the iron should retract and/or the RUNNING LED will turn off and

STANDBY will be illuminated. The RUNNING & STANDBY lights will

toggle on & off during each solder cycle during normal operation.

The solder is not feeding according

to the feed set-up illustration. The

iron unit is not extending (over-

travel) during each cycle

Locking set screw (1.5)

Stopper adjustment

During normal solder operation, the iron tip extends slightly further down than

the solder feed tube. This is referred to as over-travel. There is one set screw

on the iron unit that controls the amount of over-travel. There is a 2.5 mm set

screw (side of iron) to adjust the “Hard Stop” that sets the over-travel amount

(see photo – left). Loosen the set screw and then adjust the stopping set screw

on the bottom of the iron unit. When the iron is in the down position you will

see the solder feed position move according to the height of this set screw.

Solder Shortage Error

End of Reel

At the end of a roll of solder, there will be an error alarm and an LED

illuminated. This tells the operator that it is time to change the solder roll.

Up-Down

Senso

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Seiko 7C17 User Manual Page 33

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