
B–65162E/03
3. HOW TO SELECT THE POWER SUPPLY MODULE
63
Jm : Rotor inertia of the motor [kg⋅m
2
]
JL : Motor–shaft–converted inertia of the load [kg⋅m
2
]
N : Motor speed [min
–1
]
Dt : Duty cycle [sec]
(b) CGS unit system
W + 5.37 10
–2
@ (Jm ) JL) @ N
2
1
Dt
[W]
Jm : Rotor inertia of motor [kg⋅cm⋅s
2
]
JL : Load inertia (value for motor shaft) [kg⋅cm⋅s
2
]
N : Motor rotation speed [rpm]
Dt : Duty cycle [s]
Table.3.4.5 Required capacity for the Regenerative
Discharge unit
Capacity
Regenerative
discharge unit
Wind speed
Remarks
0m/sec 2m/sec 4m/sec
A06B–6081–H050 100W 250W – Registance : 16Ω
A06B–6066–H500 200W 400W 600W Registance : 16Ω
A06B–6066–H713 – – 800W
Forced cooling fan
motor is included
Registance : 16Ω
A06B–6066–H711 – – 800W
Forced cooling fan
motor is included
Registance : 8Ω
A06B–6066–H712 – – 1,200W
Forced cooling fan
motor is included
Registance : 8Ω
NOTE
1 The ”maximum output at acceleration” value is provided
only to aid in the selection of a power supply module; this is
not a guaranteed value.
2 When a spindle motor with a maximum output of 5kW or
more is used, the resistance of the regenerative discharge
unit must be 8Ω. If a regenerative discharge unit with a
resistance of 16Ω is used for a spindle motor with a
maximum output of 5 kW or more , a regeneration excess
alarm (alarm No. 08) may be generated in the PSMR when
the spindle is decelerated.