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12. OPTIONS AND AUXILIARY EQUIPMENT
(b) Losses of servo motor and servo amplifier in regenerative mode
The following table lists the efficiencies and other data of the servo motor and servo amplifier in the
regenerative mode.
Servo amplifier Inverse efficiency[%] Capacitor charging[J]
Servo amplifier Inverse efficiency[%] Capacitor charging[J]
MR-J3-10A 55
9
MR-J3-200A 85
40
MR-J3-10A1 55
4
MR-J3-200A4 85
25
MR-J3-20A 70
9
MR-J3-350A 85
40
MR-J3-20A1 70
4
MR-J3-350A4 85
36
MR-J3-40A 85
11
MR-J3-500A(4)
90
45
MR-J3-40A1 85
10
MR-J3-700A(4)
90
70
MR-J3-60A(4) 85
11 MR-J3-11KA(4)
90
120
MR-J3-70A 80
18
MR-J3-15KA(4)
90
170
MR-J3-100A 80
18
MR-J3-22KA(4)
90
250
MR-J3-100A4 80
12
Inverse efficiency ( )
:Efficiency including some efficiencies of the servo motor and servo amplifier
when rated (regenerative) torque is generated at rated speed. Since the
efficiency varies with the speed and generated torque, allow for about 10%.
Capacitor charging (Ec)
:Energy charged into the electrolytic capacitor in the servo amplifier.
Subtract the capacitor charging from the result of multiplying the sum total of regenerative energies by the
inverse efficiency to calculate the energy consumed by the regenerative option.
ER [J]
Es Ec
Calculate the power consumption of the regenerative option on the basis of single-cycle operation period tf [s]
to select the necessary regenerative option.
PR [W] ER/tf .............................................................................................(12.1)
(3) Parameter setting
Set parameter No. PA02 according to the open to be used.
Selection of regenerative option
00: Regenerative option is not used
For servo amplifier of 100W, regenerative resistor is not used.
For servo amplifier of 200 to 7kW, built-in regenerative resistor is used.
Supplied regenerative resistors or regenerative option is used with
the servo amplifier of 11k to 22kW.
01: FR-BU2-(H) FR-RC-(H) FR-CV-(H)
02: MR-RB032
03: MR-RB12
04: MR-RB32
05: MR-RB30
06: MR-RB50(Cooling fan necessary)
08: MR-RB31
09: MR-RB51(Cooling fan necessary)
80: MR-RB1H-4
81: MR-RB3M-4(Cooling fan necessary)
82: MR-RB3G-4(Cooling fan necessary)
83: MR-RB5G-4(Cooling fan necessary)
84: MR-RB34-4(Cooling fan necessary)
85: MR-RB54-4(Cooling fan necessary)
FA: When the supplied regenerative resistor is cooled by the cooling
0 0
Parameter No. PA02
Summary of Contents for MELSERVO MR-J3 A Series
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Page 225: ...7 12 7 GENERAL GAIN ADJUSTMENT MEMO ...
Page 241: ...8 16 8 SPECIAL ADJUSTMENT FUNCTIONS MEMO ...
Page 251: ...9 10 9 TROUBLESHOOTING MEMO ...
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