Mounting the flute, Mounting the heatsink, Mounting on the pc board – ElmoMC SimplIQ Analog Servo Amplifiers-Flute Installation User Manual

Page 16

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Flute Installation Guide

Installation

MAN-FLUIG (Ver. 2.301)

www.elmomc.com

16

3.4. Mounting the Flute

3.4.1.

Mounting the Heatsink

The Flute dissipates its heat by natural convection, up to loads of 500 W. For higher output
loads, the amplifier should be mounted on an additional heatsink or cooled by fan. There are
two 4.5-mm holes in the base plate for mounting an additional heatsink, see Figure 2

3.4.2.

Mounting on the PC Board

When mounting the Flute on a PC board, four screws (in addition to the solder pins) may be
installed to provide a mechanical connection. It is important to provide a spacer if any
components are located above the amplifier. Failure to do so can warp the PC board or
puncture the amplifier case. When selecting screws, the following specifications should be
used. If a spacer has been added, the screw length must be calculated to penetrate the case by
no more than 2.6 mm.

Screw Type: Phillips Pan Head Self-tapping (for plastic) screw – Nickel-plated Steel. Meets

standards ISO 1478, EN 21478, or DIN 7970.

d

ST2.2

L

4.5*

P

0.8

d

k

4.2

k

1.8

m≈

2.6

Phillips size

1

*4.5 mm is typical for mounting on a
PC board assembly without spacers.

Table 1: Dimensions in Millimeters

Basic

Diameter

ISO Nr.

Pitch P

Main Diameter

Minor Diameter

Flat End Diameter

D

1max

D

1min

D

2max

D

2min

D

3max

D

3min

ST2.2

2

0.8

2.24

2.1

1.63

1.52

1.47

1.37

Table 2: Size Limits for Tapping Screw Thread

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