Installation manual
CNC 8055
CNC 8055i
8055 CNC CONFIGURATION
1.
SOFT: V02.2X
·45·
Central unit
Connectors and connection
Connectors X1, X2, X3, X4 - Differential TTL and 1Vpp sinusoidal feedback signals
They are 15-pin female connectors of the SUB-D HD type and they are used for the feedback system
connections of the axes. They admit differential TTL and 1Vpp sinusoidal feedback signals.
Each connector may be connected to one axis. general parameters AXIS1 (P0), AXIS2 (P1), AXIS3
(P2) and AXIS4 (P3) must be set to let the CNC know which axis has been connected to each one
of them.
The cable must have overall shielding. The rest of the specifications depend on the feedback system
used and the cable length required.
The cable shield must be connected to the metallic hood at each end. The wires of the shielded cable
must not be longer than 75 mm without the protection shield.
It is highly recommended to run these cables as far as possible from the power cables of the machine.
Handwheel connection
When connecting handwheels, they must be differential as well as the axis selector signal. The axis
selector signal must be connected to pins 5 and 6.
Non-differential handwheels (for example Fagor 100P) may be connected using either the Fagor
signal adapter "SA-TTL-TTLD" (from "non-differential TTL to differential TTL) or connectors X5 and
X6.
Protection at the connectors
It detects over-current or short-circuits at the feedback devices issuing the relevant error message.
"Supply voltage error on axis feedback *".
Pin Signal and function
1
2
3
4
5
6
7
8
A
/A
B
/B
I0
/I0
- - -
- - -
Differential feedback signals.
9
10
11
12
13
14
+5 V
+5 V
11
11
- - -
- - -
+5 V output for feedback.
+5 V output for feedback.
0 V output for feedback.
0 V output for feedback.
15 - - -
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