SIPLACE-SX4-DX4-用户手册 - 第237页

Settings 5.4.2 Error "Gantry Crash" Gantry Settings Service Manual SIPLACE SX4/DX4 237 5.4.2 5 . 4 . 2 E r r o r " G a n t r y C r a s h " Error "Gantry Crash" A “gantry crash” error is esta…

Settings

Gantry Settings 5.4.1 Travel Ranges and Speed Monitoring

236 Service Manual SIPLACE SX4/DX4

5.4

5.4 Gantry Settings

Gantry Settings

5.4.1

5.4.1 Travel Ranges and Speed Monitoring

Travel Ranges and Speed Monitoring

The travel range of the X and Y axes will be determined during machine calibration.

Travel range for X and Y axes (X series shown as exam

ple)

1) to 4) = gantry 1 to 4

The end of the X axis travel range is + or - 0.5 mm before

the software limit switch, which is 1.5 mm before the buff-

er. A safety distance of 2.0 mm to the buffer is adequate,

if the X axis moves into this area with excessive speed.

The end of the Y axis travel range is + or - 2.0 mm before

the software limit switch. The Y axis travel range for a

particular placement area is monitored in one direction by

the software limit switch and a buffer. In the other direc-

tion, there is a permanent exchange of communication

between the axes and their positions, via the SPI Bus

(see description of the anticrash function).

Travel range for X and Y axes (X series shown as exam

ple)

1. Safety distance between the gantries during place-

ment: minimum 4mm.

Depending on the placement mode (i-placement or alter-

nating), the gantries will operate in one placement area

fully independently. This means that one gantry does not

need to know the position of the other one.

Settings

5.4.2 Error "Gantry Crash" Gantry Settings

Service Manual SIPLACE SX4/DX4 237

5.4.2

5.4.2 Error "Gantry Crash"

Error "Gantry Crash"

A “gantry crash” error is established by calculating the position difference and speed difference for both

axes. A gantry crash error is signaled via the GCUs and the CAN Bus. After the "gantry crash" error mes-

sage has been issued, both gantries need to be referenced.

5.4.3

5.4.3 Count Error:

Count Error:

If the GCU detects a "fatal count error", the axis concerned will be released and the anticrash function

disabled. The other axis is informed of this in the status information and will also disable the anticrash

function. The released axis now needs to be referenced again.

After this, the anticrash function will be re-enabled for both axes.

5.4.4

5.4.4 Anticrash Function

Anticrash Function

Example of the anticrash function sequence in placement area 1

NOTICE

GCU, HCU

The GCU and the HCU consist of a control module (axis card) and a power module (servo).

Settings

Gantry Settings 5.4.5 Mechanical Adjustment of the Incremental Encoder

238 Service Manual SIPLACE SX4/DX4

5.4.5

5.4.5 Mechanical Adjustment of the Incremental Encoder

Mechanical Adjustment of the Incremental Encoder

The incremental encoders (read units) on the X and Y axis are adjusted exactly to the position of the

incremental scale. The two limit marks on the incremental encoder show where the top/bottom positions

of the scale should be. Depending on the machine type, they are also mechanically set to a distance of

0.75 mm (black-white scale) or 0.4 mm (golden scale) to the incremental scale.

--- = Combination not possible, X = combination possible

After this adjustment of the incremental encoder you have to check the zero pulse and track signals.

Correct installation should ensure correct count and zero pulse signals. For troubleshooting purposes

(error analysis and fixing), you will need to measures these signals.

Please also observe section Track Signals and Zero Pulse.