CONNECTING
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Connect the 26-pin connector on the DC Voltage Sense Cable into the Remote Sense Signal
Connector on the rear of the PS-401 power supply. In addition to completing the DC voltage
sense circuit, the 26-pin connector also jumpers the PS-401’s Output Inhibit and Output Interlock
inputs to enable DC output.
Important Note: If you are not using a PS-401 DC supply, we highly recommend installing a DC
power supply with remote sense capability that can compensate for a minimum load lead loss (round
trip) of 1.0 V.
Control connections
All control connections to i401 lasers are made through the 15-pin User I/O connector on the rear panel.
The User I/O port receives power commands from Novanta’s UC-2000 Universal Laser Controller, or FH
Flyer marking head, and serves as the connection point for auxiliary signals between the laser and any
parts handling, automation, or monitoring equipment.
Quick Start Plug
For your i401 laser to properly operate, several input signals must be applied to the DB-15 User I/O
connector before lasing is enabled. Voltage must be applied to Remote Interlock (Pin 3) and Shutter
Open Request (Pin 10) inputs before the laser becomes ready to fire. In applications where I401 lasers are
integrated into automated systems and safety interlocks are required, these input signals must be
provided by the customer’s control system. The Quick Start Plug included in the ship kit has factory-
Warning: Serious Personal Injury
The use of the Quick Start Plug bypasses the laser’s safety interlock function, potentially exposing
personnel in the area to invisible infrared laser radiation.
Because this plug jumpers Remote Interlock and Shutter Open Request signals, the laser will fire
immediately on application of a PWM Command signal. Your integrated control system should
provide interlock and shutter signals directly to the DB-15 User I/O connector only after safe
operating conditions are established.
The Quick Start Plug is intended only for initial testing and trouble- shooting by qualified personnel.
In normal operation, the laser’s Remote Interlock input should be connected to the machine’s
safety interlock circuitry.
Caution: Possible Equipment Damage
Turn off DC power before installing or removing any plug or cable from the User I/O connector.
Ensure that user connections are made to the appropriate pins and that the appropriate signal
levels are applied. Failure to do so may damage the laser.
