Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL-C3000XZ~RFL-C12000XZ
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4.5
Interlocking
Raycus ABP series models are designed with an interlocking function, which is a two-channel
mechanism with output monitoring and manual/automatic reset.
When the safety interlocking circuit is open, the safety circuit will disconnect the power of the optical
module and then stop the laser emission. To restart the main power supply, users must close both
interlocking channels (24-Pin interface: Pin 17 and Pin 18 short-connected, Pin 19 and Pin 20 pins short-
connected). Otherwise, the main power will be turned off and the laser cannot be turned on.
If the interlock is shorted/closed (the “Emergency Stop” button is also released) and there is no error
alarm, press the “Start” (LASER) button to restart the main power supply, and the “main power has been
started” pin of the external interface will have a high level.
When the safety interlocking circuit is open or the error is detected, the main power supply of the
optical module will be turned off, and the “main power supply has been started” signal of the interface will
become low level. The detected “error state” is latched and the on-board relay opens the manual reset loop
with monitoring until the error is cleared, thus preventing the laser from being restarted.
If errors such as short circuit between interlocking channels or short circuit of start (LASER) button
are detected, the safety interlocking loop cannot be reset before the error is cleared.
4.6
Schematic Diagram of the Laser Electrical Circuit
The schematic diagram of the laser is as Figure 20:
Figure 20
Schematic diagram of the laser electrical circuit
