Configuration; Basic Configuration - Mitsubishi Electric MDS-B-SPJ2 Series Specification Manual

1.5 Configuration

1.5.1 Basic configuration

<MDS-B-SPJ2-02 ~ MDS-B-SPJ2-075>
3-phase AC power supply
200V to 230V
50/60Hz
L1,L2,L3
No-fuse breaker
AC reactor
Main circuit power
Electromagnetic switch
Control power
Spindle
amplifier, etc. Power regeneration
type convertor unit
(Note 1)
Install an independent no-fuse breaker for the MDS-B-SPJ2 main circuit power. This is especially necessary
when the circuit is shared with a large capacity convertor unit, where the no-fuse breaker may not operate at a
main circuit short-circuit in a small capacity spindle amplifier (SPJ2) if the no-fuse breaker is also installed so
that it is shared. If this happens a fire may result.
1. Outline
(Note 1)
No-fuse breaker
Electromagnetic switch
Turn OFF the main circuit
power when an alarm occurs.
＜ＤＯ＞
・
External electro-
magnetic switch
control output
＜ＡＯ＞
・
D/A output (2ch)
Main circuit power
Main circuit
output
Control power
Regenerative resistor
CAUTION
Mitsubishi CNC
SH21 cable
L1 L2 L3
W
V
U
AC spindle motor
1 − 4
SH21 cable to the Terminator
M D S - A - T M
next amplifier
MDS-B- SPJ2- 02～07 5
L21
D C P
N
L11
Detector cable
F C U A - R 0 5 2 ／ R 0 5 6
(SJ-P Series)
Grounding