10. CHARACTERISTICS
10 - 2
10.2 Power supply capacity and generated loss
Calculate the generated loss and the power supply capacity of the servo amplifier under rated load from (1)
and (2) in this section. The calculated value will vary depending on the number of connected servo motors
and the capacities of the servo motors. For thermal design of an enclosed type cabinet, use the values
calculated in consideration for the worst operating conditions. The actual amount of generated heat will be
intermediate between values at rated torque and servo-off according to the duty used during operation.
When the servo motor is run at less than the rated speed, the power supply capacity will be smaller than the
calculated value, but the servo amplifier's generated heat will not change.
(1) Calculation method of power supply capacity
Calculate the power supply capacity for one servo amplifier from tables 10.1 and 10.2.
Table 10.1 Power supply capacity for
one servo amplifier at rated output
Table 10.2 Servo amplifier power
supply capacity for one servo motor
Servo amplifier
(Note)
Power supply capacity
[kVA]
Servo motor
Power supply capacity
[kVA]
(A)
MR-J4W2-22B
Total power supply
capacity of connected
servo motors ((A) in
table 10.2)
HG-KR053
0.3
MR-J4W2-44B
HG-KR13
0.3
MR-J4W2-77B
HG-KR23
0.5
MR-J4W2-1010B
HG-KR43
0.9
MR-J4W3-222B
HG-KR73
1.3
MR-J4W3-444B
HG-MR053
0.3
Note.
Note that the power supply capacity will
vary according to the power supply
impedance. This value is applicable when
the power factor improving reactor is not
used.
HG-MR13
0.3
HG-MR23
0.5
HG-MR43
0.9
HG-MR73
1.3
HG-SR51
1.0
HG-SR81
1.5
HG-SR52
1.0
HG-SR102
1.7
HG-UR72
1.3
HG-JR53
1.0
HG-JR73
1.3
HG-JR103
1.7
Calculate the power supply capacity with equation 10.1 below.
Power supply capacity [kVA] = Sum of power supply capacity (A) of the connected servo motors ·· (10.1)
For example, when a HG-KR43, HG-KR23, and HG-KR053 are connected to an MR-J4W3-444B servo
amplifier, according to table 10.1, the power supply capacity of each servo motor is as follows: HG-KR43
= 0.9 [kVA], HG-KR23 = 0.5 [kVA], HG-KR053 = 0.3 [kVA]. Calculate the values with equation 10.1.
Power supply capacity [kVA] = 0.9 + 0.5 + 0.3 = 1.7
Under the above conditions, the power supply capacity of the servo amplifier is 1.7 [kVA].
Содержание MR-J4W2
Страница 9: ...A 8 MEMO ...
Страница 17: ...8 MEMO ...
Страница 31: ...1 FUNCTIONS AND CONFIGURATION 1 14 MEMO ...
Страница 95: ...4 STARTUP 4 20 MEMO ...
Страница 169: ...6 NORMAL GAIN ADJUSTMENT 6 20 MEMO ...
Страница 201: ...7 SPECIAL ADJUSTMENT FUNCTIONS 7 32 MEMO ...
Страница 213: ...8 TROUBLESHOOTING 8 12 MEMO ...
Страница 219: ...9 OUTLINE DRAWINGS 9 6 MEMO ...
Страница 229: ...10 CHARACTERISTICS 10 10 MEMO ...
Страница 295: ...13 USING STO FUNCTION 13 14 MEMO ...
Страница 327: ...14 USING A LINEAR SERVO MOTOR 14 32 MEMO ...
Страница 371: ...16 FULLY CLOSED LOOP SYSTEM 16 24 MEMO ...
Страница 521: ...APPENDIX App 38 ...
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