Nc And Servo Amplifier Connection - Mitsubishi Electric MELDAS MDS-B-SVJ2 Series Specifications And Instruction Manual

2-3 NC and servo amplifier connection

The NC bus cables are connected from the NC to each servo amplifier so that they run in a straight
line from the NC to the terminator connector (battery unit). MDS-C1-V1/V2 Series servo amplifiers and
spindle amplifiers can be connected in combination, and up to 7 axes can be connected per system.
(Note that the number of connected axes is limited by the NC. The following drawing shows an
example with three axes connected.)
< Connection >
CN1A : CN1B connector of NC side amplifier or NC output
CN1B : CN1A connector of terminator connector side amplifier or terminator connector (battery
unit)
Connected to the NC
Refer to the
instruction manual
of each NC for
details.
SH21 cable
CAUTION
POINT
Chapter 2 Wiring and Connection
MDS-B-SVJ2
1st axis
CN1A CN1B
Max. length of 30m from the NC to the terminator connector.
Arrange the NC and servo amplifiers so that the NC bus cable length from the
NC to the terminator connector (battery unit) is 30m or less.
Axis Nos. are determined by the rotary switch for setting the axis No. (Refer to
section "4-1-1 Setting the rotary switches".) The axis No. has no relation to the
order for connecting to the NC.
MDS-B-SVJ2
2nd axis 3rd axis (final axis)
CN1A CN1B CN1A
2-9
MDS-B-SVJ2
CN1B
Connect to the
battery unit with a
terminator connector
or SH21 cable.