Installation manual
CNC 8035
3.
MACHINE AND POWER CONNECTION
Setup
(SOFT M: V15.3X)
(S
OFT T: V16.3X)
·66·
3.3 Setup
Some general points to consider
Inspect the whole electrical cabinet verifying the ground connections BEFORE powering it.
This ground connection must be done at a single machine point (Main Ground Point) and all other
ground points must be connected to this point.
The power supply used for the digital inputs and outputs must be regulated and its zero volts must
be connected to the main ground point.
Check the connection of the cables and connectors. DO NOT connect or disconnect these cables
to/from the CNC when the CNC is on.
Without powering the electrical cabinet on, check all the pins of the connectors for short-circuits.
Precautions
It is recommended to reduce the axis travel installing the limit switches closer to each other or
detaching the motor from the axis until they are under control.
Verify that there is no power going from the servo drives to the motors.
Verify that the connectors for the digital inputs and outputs are disconnected.
Verify that the E-STOP button is pressed.
Connection
Verify that the A.C. power is correct.
With the CNC completely disconnected from the electrical cabinet, power the electrical cabinet and
verify that it responds properly:
Verify that there is proper voltage between the pins corresponding to external 0V and 24V of the
connectors for the digital inputs and outputs.
Apply 24V to each one of the terminals of the electrical cabinet being used that correspond to the
digital outputs of the CNC and verify their correct performance. Check that the electrical cabinet
responds properly.
With the motors being decoupled from the axes, verify that the system consisting of drive, motor
and tacho is operating properly.
Connect the A.C. power to the CNC. If there is any problem, the CNC will display the corresponding
error.
Select the PLC monitoring mode at the CNC and activate the digital outputs (O1=1) one by one to
verify their proper operation.
With power turned off, connect the I/O and feedback connectors to the CNC.
Connect the CNC and the electrical cabinet to A.C. power and confirm the counting direction of each
axis.
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