technical reference
3
23
Synrad
Firestar i401
operator’s manual
DC Power Cables
The
DC Power
Cables
shipped with Firestar i401 lasers are manufactured with 1/0 AWG wire to a standard
length of 6.5 feet (2.0 m) or an optional length of 16 feet (5.0 m). Nominal finished O.D. is 0.586" (14.9
mm) so the minimum bend radius must be greater than 4.7 inches (12 cm). The cable assembly also in-
cludes 22 AWG remote voltage sense wiring connected to a 26-pin high-density D-subminiature connec-
tor for use with our PS-401 DC power supply.
When using a power supply other than the PS-401, we recommend using remote sensing so the power
supply output remains at a constant voltage over varying load conditions. Choose a DC supply that can
compensate for a maximum load lead loss (round trip) of 1.0 V.
Important Note:
If you lengthen the
DC Power Cables
shipped with the i401 laser, you must calculate
and measure the additional voltage drop to ensure that 48.0 VDC is available at the
laser’s
+48V POWER
terminal under full-load conditions. Depending on the ad-
ditional length required, you may need to use larger gauge (2/0) wire.
