RDC6685U(-DFM) Control System manual

it will move to the opposite direction of machine origin, which means the polarity of directional signal

for this axle is not correct. In such a case, the connection between this axle and the motor driver can

be broken first (otherwise the mainboard can not be detected to the spacing so as to lead to the

collision of this axle), and then such a polarity can be corrected after this axle is reset completely.

Upon the correction, the reset key can be pressed against to reset the mainboard.

And, the Pulse signal can be falling edge valid or rising edge valid. The default setting is falling

edge valid.

4.11 Laser Power Control Interface L1-L4

This control system has four independent and adjustable digital laser power control interfaces.

The function for each laser show as below:

Laser

Symbols Definitions

channel

1

L1

The first laser control interface corresponding to the main

coordinate system (X1 /Y1)

2

L2

The second laser control interface corresponding to the main

coordinate system (X1 /Y1)

3

L3

The first laser control interface corresponding to the second

coordinate system (X2 /Y2)

4

L4

The second laser control interface corresponding to the second

coordinate system (X2 /Y2)

Signals of the four interfaces are similar and the first digital interface (L1) is hereby exampled:

Pin

Symbols Definitions

1

GND

Power ground (output)

2

L-ON1

Laser-enabled control interface

1. When the laser is the RF laser, this pin will not be used;

2. When the laser is a glass tube, if the used laser is outputted in

the low-level form, this pin will be connected with the laser power

enable end and used to control the ON/Off of laser.

3

LPWM1

Power control interface of laser/laser tube

1. When the laser is the RF laser, this pin will be connected with

the laser RF-PWM end;

2. When the laser is a glass tube, this pin will be connected with

the laser power PWM end and used to control the power of the

laser.

4

WP1

The input port of water protector for the first laser power source.

When the water protector 1 is enabled, the mainboard will detect

the input port of water protector 1. If this port is of low level, it will

be deemed normal; if this port is of high level, the mainboard will

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