Hardware configuration.
CNC 8070
CENTRAL UNIT + MONITOR (ETX PLATFORM).
5.
Connections.
·87·
(REF: 1911)
5.12.5 Feedback connection.
The central unit has 2 feedback inputs, valid for TTL and differential TTL signals.
Connector pinout.
Plug-in part. 15-pin male SUB-D HD type connector.
Cable characteristics.
We recommend to run the feedback cables as far away as possible from the power cables
of the machine.
The cable being used must have overall shield. The cable shield must be connected to the
metallic hood at each end. The unshielded portion of the wires of an unshielded cable cannot
be longer than 75 mm.
(*) Pin ·15· is offered for compatibility. We recommend to connect the
cable shield to the connector housing at both ends.
Pin. Signal. Description.
1 A Feedback signals.
2/A
3B
4/B
5 I0 Reference signals.
6 /I0
7 AL Feedback alarm.
8/AL
9 +5 V DC Voltage supply for the feedback system.
10 - - -
11 GND 0 V reference signal.
12 - - -
13 - - -
14 - - -
15 Chassis(*) Shield.
1 ... 5
6 ... 10
11 ... 15
Fagor Automation offers a wide range of cables and extension cables to connect the feedback systems
to the CNC. The cable characteristics , as well as its length, depend on the type of feedback being
used. Refer to our catalog for further information.
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