Technical Manual for EA350 Analog Pulse Type Servo Driver V101 12.6.5 Dimensions of SEC series servo motors with flanges 200 and 230 12.7 Servo motor overload characteristics 12.7.1 Overload protection definition Servo motor overload protection is to protect the motor against overheat 12.7.2 Cause of servo motor overload 1) The motor rotates in excess of the rated torque continuously for too long. 2) The load and motor rotor inertia ratio is too high, and highly frequent acceleration/deceleration occurs. 3) The motor power cable or encoder cable is connected improperly. 4) An improper gain is set for the servo motor, resulting in motor oscillation.
5) In case of a motor with a holding brake, the motor rotates without the holding brake open.
12.7.3 Relation between the servo motor load and run time 265 Motor specification/model LD (mm) FA (mm) FB (mm) FC (mm) FD (mm) FE (mm) LZ (mm) LK (mm) LE (mm) LG (mm) LT (mm) S (mm) KL (mm) KH (mm) KW (mm) T (mm) Quality (kg) SEC20-011-20- 3FBY□ 387.5 (487.5) 200 180 215 13.5 221 80 63 4 16.5 180 38 33 10 10 M8 45 (60.5) SEC20-011-15- 3FBY□ 425 (525) 200 180 215 13.5 221 80 63 4 16.5 180 38 33 10 10 M8 51 (66.5) SEC20-013-15- 3FBY□ 451 (551) 200 180 215 13.5 221 80 63 4 16.5 180 38 33 10 10 M8 58 (73.5) SEC20-015-15- 3FBY□ 462.5 (562.5) 200 180 215 13.5 221 80 63 4 16.5 180 38 33 10 10 M8 65 (84) SEC23-011-15- 3FBY□ 400 (500) 230 200 250 14.5 260.5 110 90 5 21 218.5 42 37 8 12 M12 45 (66.5) SEC23-015-15- 3FBY□ 458 (558) 230 200 250 14.5 260.5 110 90 5 21 218.5 45 39.5 9 14 M12 77.5 (99) SEC23-018-15- 3FBY□ 458 (558) 230 200 250 14.5 260.5 110 90 5 21 218.5 45 39.5 9 14 M12 77.5 (99) SEC23-022-15- 3FBY□ 508 (608) 230 200 250 14.5 260.5 110 90 5 21 218.5 45 39.5 9 14 M12 92.5 (114) SEC23-029-15- 3FBY□ 558 (658) 230 200 250 14.5 260.5 110 90 5 21 218.5 48 43 9 14 M16 107 (128.5))