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Basic Installation 3-21
MN1902
3.7 Feedback connections
Two feedback options are available for use with linear and rotary motors - commutating
encoder or resolver. Confirm the catalog number of your FlexDrive
II
(see section 2.2.1) to
ensure you are wiring the correct feedback device. There are some important considerations
when wiring the feedback device:
H
The feedback device wiring must be separated from power wiring.
H
Where feedback device wiring runs parallel to power cables, they must be separated by at
least 76mm (3 in)
H
Feedback device wiring must cross power wires at right angles only.
H
To prevent contact with other conductors or earths/grounds, unearthed/ungrounded ends
of shields must be insulated.
H
Some larger D-type connector shells may be obstructed by neighboring connector X3.
H
Linear motors use two separate cables (encoder and Hall). The cores of these two cables
will need to be wired to the appropriate pins of the 15-pin D-type mating connector
(supplied).
An encoder output signal is available on connector X7 for supplying other equipment.
FlexDrive
II
models with the resolver option provide a simulated encoder output, while the
encoder based FlexDrive
II
duplicates the encoder signals entering X8. See section 4.4.1 for
details.
Flex
+
Drive
II
only
:
Flex+Drive
II
models with the resolver or incremental encoder option are capable of dual
encoder feedback, a technique where two encoders are used to control a single axis. The
second feedback input is derived from the master (auxiliary) encoder input on connector X9
(section 4.4.2). See the Mint help file for details.
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