Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL-C30000XZ
37
Table 10 XP5 Communication interface definitions.
Pin
Function
Description
1
TX+
Data trans
2
TX-
Data transmission-
3
RX+
Data trans
4
N/C
Connectionless
5
N/C
Connectionless
6
RX-
Data acceptance-
7
N/C
Connectionless
8
N/C
Connectionless
4.5 Introduction to Safety Interlock
Raycus’ product is designed with a safe interlocking loop, which is a two-channel system with
output monitoring and manual reset. When the safety interlocking circuit is open, the safety circuit will
disconnect the working power of the optical module, that is, the main power supply of the optical module.
To start the main power supply, you must close the two interlocking channels (24 pin interface :17 and 20
feet short ,18 and 19 feet short). Otherwise, the main power will be turned off and the laser cannot be
turned on. When one of the channels is open, the laser main power supply is impossible to start until the
other channel is open, and then the two channels are closed before the laser main power supply can be
started.
If the interlock is closed (the stop button is also released) and there is no error alarm, press the start
(LASER) button to start the main power supply, and the ‘main power has been started’ pin of the external
interface will have a high-level output.
When the security 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 loop cannot be reset before the error is cleared.
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