Canon GM-1000 - Manual (Page 38)

CANON Digital Galvano Scanner System GM-1000 Series
Users Manual 1.20
38
2.9. Heat Radiation and Installation
Since the controller and motor generate heat, their heat radiation should be considered carefully.
Generated heat depends on the operating conditions. Determine a heat radiation method according to
the operating conditions.
The controller and motor have a temperature detection sensor (thermistor) in the heat generating
section. As a safety function, the thermistor stops control if the detector temperature reaches:
Controller About 70ºC
Motor About 70ºC
(For details, see 10.1. “Safety Functions”)
The controller and motor require heat radiation so that their temperatures will not exceed the above values.
Controller installation methods
The controller can be installed by either method A or B below.
At installation, put the controller frame in contact with a heat-radiating structure (heat sink or cabinet).
Method A has higher heat radiation efficiency. However, select either method by considering the
operating conditions and cable routing. When installing the controller frame, apply thermal grease or
attach a thermal conductive sheet to the contact surface.
Under some operating conditions, forced air cooling by a fan is necessary. Cool the heat-radiating
structure (heat sink or cabinet) and the controller.
In addition to the output amplifier, the control circuit section (DSP) generates heat.
Allow as much space as possible around the equipment.
Caution
The controller becomes hot during operation.
A B
Output amplifier
Control circuit