Sharp CP-SR421 User Manual download pdf (Page 212)

10. CHARACTERISTICS

10 - 3

10.2 Power supply capacity and generated loss

(1) Amount of heat generated by the servo amplifier

Table 10.1 indicates servo amplifiers' power supply capacities and losses generated under rated load.

For thermal design of an enclosed type cabinet, use the values in the table 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 value in the table, but the servo

amplifier's generated heat will not change.

Table 10.1 Power supply capacity and generated loss per servo motor at rated output

(Note 2) Servo amplifier-

generated heat [W]

Servo amplifier Servo motor

(Note 1)

Power supply

capacity

[kVA]

At rated output With servo-off

Area required

for heat

dissipation [m

]

HG-MR053 0.3 25 15 0.5

MR-J4-10B HG-MR13 0.3 25 15 0.5

HG-KR053/13 0.3 25 15 0.5

HG-MR23 0.5 25 15 0.5

MR-J4-20B

HG-KR23 0.5 25 15 0.5

HG-MR43 0.9 35 15 0.7

MR-J4-40B

HG-KR43 0.9 35 15 0.7

HG-SR52 1.0 40 15 0.8

MR-J4-60B

HG-SR51 1.0 40 15 0.8

HG-MR73 1.3 50 15 1.0

MR-J4-70B

HG-KR73 1.3 50 15 1.0

HG-SR102 1.7 50 15 1.0

MR-J4-100B

HG-SR81 1.5 50 15 1.0

HG-SR152 2.5 90 20 1.8

HG-SR202 3.5 90 20 1.8

MR-J4-200B

HG-SR121 2.1 90 20 1.8

HG-SR201 3.5 90 20 1.8

HG-SR352 5.5 130 20 2.6

MR-J4-350B

HG-SR301 4.8 120 20 2.4

HG-SR502 7.5 195 25 3.9

MR-J4-500B

HG-SR421 6.3 160 25 3.2

MR-J4-700B HG-SR702 10 300 25 6.0

Note 1.

Note that the power supply capacity will vary according to the power supply impedance. This value is applicable when

the power factor improving AC reactor or power factor improving DC reactor are not used.

Heat generated during regeneration is not included in the servo amplifier-generated heat. To calculate heat generated by

the regenerative option, refer to section 11.2.

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Sharp CP-SR421 User Manual Page 212

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