ElmoMC SimplIQ Analog Servo Amplifiers-Cymbal - Manual (Page 30)

Cymbal Installation Guide Installation
MAN-CYMIG (Ver. 1.3)
30
3.7.1. Cymbal Thermal Data
• Free air convection thermal resistance (θ): Approximately 3.6 to 4 °C/W.
• Thermal time constant: Approximately 40 minutes/ 2400 seconds (thermal time constant
means that the Cymbal will reach 2/3 of its final temperature after 4 minutes).
• Self heat dissipation capability (no external heatsink): 12 W for 40 °C/W temperature rise.
• Shut‐off temperature: 86 °C to 88 °C (measured on the heatsink).
• The thermal resistance when connecting to an external heat sink:
ƒ The surface of the external heatsink is 50 μm: 0.18 °C/W.
ƒ Thermal conductive compound. By proper Smearing of the surface a significant
improvement of the thermal resistance is achieved: 0.13 °C/W
3.7.2. Heat Dissipation Data
Heat Dissipation is shown in graphically below:
Power Dissipation 60V series
0
10
20
30
40
50
60
70
80
90
100
0 12 20 30 40 50 60 70 80 90
Motor's Current (Ampere)
Pow
e
r D
is
s
ipa
ti
on
(
W
) 12VDC
20VDC
30VDC
40VDC
50VDC
56VDC
Heatsink
Required
Heatsink
not
Required
Standard 40
°C Ambient Temp.
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