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How To Remove I/o Card To Get At Switches - Siemens MICROMASTER 440 Quick Start Manual

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Issue 08/03
3.1

How to Remove I/O Card to Get At Switches

The 50/60Hz DIP switch is located underneath the I/O card on ALL frame sizes of MM440. In the top
right hand corner of the I/O board there is a clip that can be released using a flat bladed screwdriver.
Using the plastic bulge (over the relays on the I/O board), you can hold the I/O board and remove it
easily once the clip has been released.
See following illustrations for instructions on removing the I/O boards in the different frame sizes.
3.1.1 Frame Size A to Frame Size C
1 Remove SDP or
BOP by pressing
button.
4 Move DIP switch
2(2) according to
nominal motor
frequency
Figure 3-1 Removing the I/O board on Frame Size A to Frame Size C MM440
NOTE
Example shown is Frame Size A; Frame Size B & Frame Size C are similar.
34
3 Use flat blade
2 Slide down
screwdriver to
terminal cover
remove I/O board
Quick Start Guide
50/60 Hz DIP
switch is on right.
Down = 50Hz,
Up
= 60Hz
DIP2(1) has
no function
MICROMASTER 440
6SE6400-5GA00-0BP0

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Mm440

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