Novanta i401, Руководство пользователя

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CONNECTING PAGE | 27
Important Note: The i401 laser is equipped with fittings for 12 mm tubing. If your integrated
system uses 1/2" O.D. coolant tubing, you must install 12 mm to 1/2" tubing adaptors between the
laser and other equipment in your processing system or install 1/2" Tri Threads fittings on the laser’s
cooling manifold.
48 V power supply connections
Important Note: The negative (–) side of the DC input to the laser is internally connected so
that the laser chassis serves as DC power ground. You should isolate the laser’s DC power
supply so that the only grounded connection is at the laser. Alternatively, you can mount the laser
chassis on an insulating pad or film in order to electrically isolate the laser when other equipment is
grounded to the laser’s DC power supply.
i401 lasers require a DC power source capable of supplying a minimum of 135 A at 48 VDC. A supply
with remote sense capability that can compensate for a minimum load lead loss (round trip) of 1.0 V is
highly recommended. We recommend the Novanta PS-401 DC power supply, which can provide a
maximum of 145 A at 48 VDC. AC input requirements for the PS-401 supply are 180–264/342–528 VAC,
three-phase (3Ø), 30 A max per phase, 50–60 Hz.
PS-401 DC power supply
The PS-401 supply is shipped with the default AC input voltage range set to 480 VAC, which is used for
high-range 3Ø input voltages between 342–528 V with the nominal range being 380–480 VAC.
Input voltage selection
To operate the PS-401 DC supply on a low-range 3Ø voltage between 180–264 V with the nominal range
being 200–240 VAC, perform the following steps to reconfigure the unit:
1 Verify that input AC voltage to the supply is physically locked out or disconnected.
2 Refer to Figure 1-8 for the location of the voltage selection assembly on the front of the PS-401
supply.
3 Unscrew the knurled thumbscrews fastening the voltage selection assembly to the PS- 401
chassis.
4 Pull the voltage selection assembly out of the chassis and rotate it 180° so the notch is now
facing upwards.
5 Carefully insert the voltage selection assembly back into the power supply chassis and make sure
it is firmly seated into the connector. The words “240VAC” should appear in the cutout area as
seen in Figure 1-8.
6 Securely tighten the thumbscrews fastening the selection assembly to the PS-401 chassis.