KE-750_MAINTE.pdf - 第102页

③ Measurement - 99 - Issuing SWEEP_CMD ↓ Starting rotation of θ axis ↓ Issuing REPORTW_CMD 1 ↓ (Waiting the result) ↓ Obtaining Result 1 ↓ Issuing REPORTW_CMD 0 ↓ Obtaining Result 0 Completing computation of Result 1 Sta…

② Determining pre-load attitude

To make the pre-load angle small, the pre-load attitude is determined

according to the feeding angle of parts.

Feeding angle Head angle when pick

Pre-load attitude

Front

Rear

Front

Rear

Front

Rear

Front

Rear

180

270

180

270

180

270

LA or LAIC

330 (-30)

150 (-30)

150 (+60)

330 (+60)

150 (-30)

330 (-30)

330 (+60)

150 (+60)

LAHD

60 (+60)

240 (+60)

60 (-30)

240 (-30)

240 (+60)

60 (+60)

240 (-30)

60 (-30)

Part angle at minimum width

LA or LAIC LAHD

180

270

Front – 0°

Rear – 180°

Front – 90°

Rear – 270°

Front – 180°

Rear – 0°

Front – 270°

Rear – 90°

- 98 -

③ Measurement

- 99 -

Issuing SWEEP_CMD

↓

Starting rotation of θ axis

↓

Issuing REPORTW_CMD 1

↓

(Waiting the result)

↓

Obtaining Result 1

↓

Issuing REPORTW_CMD 0

↓

Obtaining Result 0

Completing

computation of

Result 1

Start of rotation End of rotation

Obtaining the

result of Result 1

Obtaining the

result of Result 0

- 100 -

3.10 Laser Recognition Error

How to act for the error status output from Laser Align is specified. In

accordance with the error types, actions are classified as follows:

Laser retry error: For this error type, laser measurement conditions (laser

height or pre-load angle) are automatically changed, and laser retry is

performed.

Production halt error: For this error type, production is put in a halt, and the

operator is asked to check the entered data and the status of the sensors.

Reset/power on again error: For this error type, it is necessary to terminate

production, send the reset command to the sensor, and turn off the power

and turn on it again.

Hardware replacement error: For this error type, the hardware of Laser Align

is faulty, and the sensor head or the SCM board has to be replaced.

Software fault error: For this error type, the software of Laser Align is faulty,

and it is necessary to ask CyberOptics for further investigation.

Other errors: Any error types other than those described above. It is the

hardware or software error whose cause is not Laser Align (mainly of JUKI).

Details of errors and actions

Laser retry error

Error code Cause of error Action

Link Error

An error occurred on the serial line

from the Laser Align sensor to the

SCM board. The cause is noise or

disconnection of the circuit to the

sensor.

Retry (of measurement). It is assumed

that a connection error occurs if the

same error occurs. Check the

connection. If not recovered, it is

assumed that hardware fault occurred,

and it is necessary to replace.

No Component

The Laser Align has not detected the

part. The cause is a part pick fault or

incorrect laser detection height (Z axis

height). The real cause is a fallen

part because part detection has been

performed with Measure Once

command before part scanning.

This occurs when the part falls down.

Or, re-check the laser height of part data

and setup data because the laser height

of the Z axis or the part height may not

be normal.

Minimum Width

Occurred at Start

of Scan

The minimum angle occurred when

scanning starts. The minimum angle

could not be detected because the

preload angle is too small or the

shape of the corners of the part is

round. If this occurs with the part

whose shape of the corners is round,

the part mount angle may be

incorrect. (In case when the 1st

angle is set in the longitudinal

direction of the part.)

If this occurs again after 1st retry,

temporarily stop the production and

check that the part feed angle and part

size of the part data are correctly

entered.