31 FSCUT2000C laser cutting control system User Manual
2.5.6 SPI-500W-R4 wiring diagram
RS232 DB9
1
62
73
84
95
SPI-500W R4 Laser Systems
InterLock
1 Interlock1
2 Interlock2
4 Interlock2
5 Interlock1
RS232 Comms Port
2 RS232 Rx
3 RS232 Tx
5 RS232 COM
BCL3766
Dip switch
ON
PWM
1 2
output
PWM-
PWM+
Mod Input TTL
Modulation+
Modulation-
NO
Relay output
CON
Relay output
NO
CON
Note：
1. When the modulation signal select MODINPUTTTL interface, PWM select
5V control (Dip switch: 1 pin is OFF, 2 pin is ON；Optionally select one among 3 pin
and 4 pin is ON, then another one is OFF.
2. When the modulation signal select 1 pin of I / O interface, PWM select 24V
control (Dip switch: 1 pin is ON, 2 pin is OFF；Optionally select one among 3 pin and
4 pin is ON, then another one is OFF).
    "