Figure 1-6 Rear-Mounted Cooling - Novanta v40 User Manual

OEM AIR-COOLED CONNECTIONS (SAB MODELS)
A +24 VDC (1.5 A max.) output to power customer-supplied cooling fans is available from the SAB
model's side-mounted DB-9 connector. Refer to DB-9 connections in the Technical Reference chapter
for cautions, pinouts, and signal descriptions.
The +24 VDC output described above is not fused or electrically protected. Do not short this pin to
ground; the control board will be damaged.
Connecting
NOVANTA recommends side-mounted cooling fans for v40 lasers, but a rear-mounted, single-fan
cooling scheme is also feasible. Figure 1-6 illustrates the rear-cooling concept. Please review the guide-
lines below to ensure that your implementation provides enough airflow to prevent damage to the laser.
The cooling fan must supply at least 300 CFM in order to keep laser and RF heat sink temperatures
below 45 °C (113 °F). Note that rear-cooled v40 lasers may experience some performance degradation
when compared to the typical side-mounted cooling configuration. Because of the heat generated by 's
integrated RF circuitry, establishing significant airflow evenly over the entire surface area of the
combined laser/RF chassis is vitally important to the performance and longevity of the laser.
Guidelines for rear cooling
• The cooling shroud must be designed so that it encloses the full length of both the laser and the
cooling fan.
• The shroud must fit snugly against the laser's cooling fins so that cooling air is ducted between
the fins and not around them.
Caution: Possible Equipment Damage

Figure 1-6 Rear-mounted cooling

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