UMI Accessory User Guide — UMI-Flex6
24
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Figure 27.
Encoder Signal Phasing—CW Rotation
The encoder inputs are filtered by both analog and digital noise filters. You
must use cables with twisted pairs and an overall shield for improved noise
immunity. When connecting the encoder to the UMI-Flex6, you should use
at least 24-AWG wire.
Caution
Using an unshielded cable allows noise to corrupt the encoder signals, which
results in lost counts, reduced accuracy, and other erroneous encoder and controller
operations.
Limit Switch Terminal Block
For Forward and Reverse Limit and Home Input switch connections, each
UMI-Flex6 axis has a separate 6-position terminal block. All limit and
home switch inputs are connected to the Opto-coupled inputs on the
FlexMotion board. Refer to Figure 23 to help you locate the limit switch
terminal block on your UMI-Flex6 accessory. See Figure 28 for the
UMI-Flex6 limit switch terminal block pinout.
Figure 28.
UMI-Flex6 Limit Switch Terminal Block Pin Assignment
Phase A
Phase B
Index
1
2
3
4
5
Forward Limit
Home Input
Reverse Limit
Trigger Input
1
Inhibit Input
ISO Common
6
1NC on Axis 5 and 6
Summary of Contents for UMI-4A
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