Selection Of Contactor - Mitsubishi MELDAS HS Series Specifications And Instruction Manual

DANGER

4-2-3 Selection of contactor

Select the contactor based on section "(1) Selection from rush current" when the system connected to
the contactor to be selected is intelligent servomotor, an MDS-B-SVJ2 servo amplifier and 3.7kW or
less MDS-B-SPJ2 spindle amplifier.
When a converter unit or 5.5kW or more MDS-B-SPJ2 spindle amplifier is included, calculate both
the capacities in sections "(1) Selection from rush current" and "(2) Selection from input current", and
select the larger of the two capacities.
(1) Selection from rush current
Use the following table to select the contactors so the total rush current for each unit does not
exceed the closed circuit current amount.
Intelligent servomotor
Rush current
MDS-B-SVJ2
Rush current
MDS-B-SPJ2
Rush current
Converter unit
Rush current
Contactor closed current
capacity
(Total rush current)
Recommended contactor
(Mitsubishi Electric Corp.:
Option part)
Special order part: This part is not handled by the NC Dept. Marketing Section or dealer.
(Example 1)
The contactor is selected for the MDS-B-SVJ2-10 with three HS-SF102 axes and one
MDS-B-SPJ2-37 axis connected.
< Selection only from rush current >
(HS-SF102 × 3 axes rush current) + (SPJ2-37 × 1 axis rush current)
= 3 × 100A + 1 × 100A = 400A
Therefore, S-N35 200VAC is selected.
Chapter 4 Option and Peripheral Devices
Install independent no-fuse breakers and contactors as the SVJ2 main circuit
power supply if the total current capacity exceeds 60A when the power supply
is shared between the converter and a large capacity SPJ2 spindle amplifier.
No-fuse breakers may not operate for short-circuits in small capacity amplifiers
if they are shared with a large capacity unit, and this could cause fires. Select
a capacity of NF60 or less for the intelligent servomotor and SVJ2 servo
amplifier.
Rush current table
HS-RF43, HS-RF73
HS-SF52, HS-SF53
45A
MDS-B-SVJ2-01
MDS-B-SVJ2-03
MDS-B-SVJ2-04
45A
MDS-B-SPJ2-02
MDS-B-SPJ2-04
45A
MDS-A-CR-10 to MDS-A-CR-90
MDS-A/B-CV-37 to MDS-A/B-CV-75
15A
Contactor selection table 1
110A 200A
S-N10 S-N18
AC200V AC200V AC200V
MDS-B-SVJ2-06 MDS-B-SVJ2-07
50A
MDS-B-SPJ2-15
MDS-B-SPJ2-075 MDS-B-SPJ2-22
MDS-B-SPJ2-37
50A
220A 300A 400A
S-N20 S-N25 S-N35
AC200V AC200V
4–15
HS-MF23
HS-SF102, HS-SF103
HS-SF202
100A
MDS-B-SVJ2-10
MDS-B-SVJ2-20
70A 100A
MDS-B-SPJ2-55
MDS-B-SPJ2-75
MDS-B-SPJ2-110
100A 15A
MDS-A/B-CV-110
40A
550A 650A
S-K50 S-K65
AC200V AC200V AC200V
850A
S-K80