23
MicroStar B
Service manual
MicroStar B
rev06
09
09
09
09
09
Connection to earth and ground
Ground bar
Earth point
connection
L bar
Bar's section
0,5 .. 1m
30 x 5 mm
1..2m
40 x 5 mm
Connection to earth and ground
2.2
Motor and Power cable
(as norm EN60204)
SECTION
SIZE (A)
1,5mm
2
/ 15AWG
2/4 4/8 7/14
2,5mm
2
/ 13-14AWG
10/20
Control signals cable
(as norm EN60204)
Feedback signals cable
(as norm EN60204)
Make sure that the servodrive and the motor are connected to earth in accordance with the
current norms. This connection must be done by using a copper bar, mounted on insulating
supports:
L bar
then follow these indications:
1. Connect to the ground bar:
the internal "0V" zero voltage of the CNC;
the earth terminals of the PLC/CNC frames;
the "0V" of the auxiliary supply;
the CHASSIS of all drives;
2. Connect the ground bar to the zinced panel of the drive by using a screw, then connect
that screw to earth.
3. Connect earth to the motor’s carcass.
It suggests a conductive connection as much as possible to the chassis, or the heatsink,
or the mounting panel of the electrical box.
It refers to the earth connection.
SECTION
0,5mm
2
/ 20AWG
SECTION
0,25 - 0,35mm
2
/ 22 -24AWG
