QS15 & QS20 Series Galvo Scanners
Chapter 7: Heat Sink Requirements
Page 8
MSTN000968-D02
Chapter 7
Heat Sink Requirements
CAUTION
The servo driver board MUST be attached to an additional heat sink before applying power. Failure to
provide proper heat sinking could result in damaged components and void the manufacturer’s
warranty.
These galvanometers typically do not require special heat sinking. Under most operating conditions, the
galvanometer’s motor will radially transfer its heat from the motor to the surrounding air. The galvanometers are
mounted by clamping in the motor section such that heat generated by the galvanometer motor does not cause
thermal drift in the position detector.
Temperature changes
in the galvanometer environment can cause small amounts of drift in the galvanometer’s
position (see specifications). It is recommended that the galvanometer(s) be operated at the most rigorous level
required during the user’s application, rather than alternating between rigorous and light operation. This will ensure
that the drift remains a constant offset over the course of operation.
Monitor the temperature of the galvanometer on the mid section of the galvanometer stator. The stator chassis
temperature should not exceed 45 °C. If the operating temperature of the galvanometer exceeds this temperature,
additional heat sink capacity will be required. This can be accomplished by blowing cool air across the motor or by
clamping additional heat sinking material to the motor chassis.
