Selecting the MOVIGEAR^® classic drive unit

Observe the following points when selecting the drive unit MOVIGEAR^® classic:

Which torque class (size) is required?

Requirement: The maximum possible startup torque of the drive unit MOVIGEAR^® classic must be higher than the maximum application torque:

Based on the application calculations, the maximum application torque for startup is M_max = 145 Nm

MGF..2-DSM-C drive units with i > 10.37 meet this requirement.

Result: A MOVIGEAR^® classic of torque class MGF..2 is selected.

Selecting the gear ratio with output speed:

Requirement: The application calculations result in an output speed of n_a = 50 min^-1. To achieve a high setting range and optimum efficiency, the required output speed should be achieved as precisely as possible at an input speed of n_e = 2000 min^-1.

Result: The drive with a gear ratio of i_tot = 37.24 and an output speed of n_a = 53.71 at n_e= 2000 min^-1 is selected from the table in the product manual in chapter "Technical data" > Permitted currents, speeds and torques:

MGF..2-DSM-C
		n_a	M_a	I_cont.	M_apk	I_max	M_{a_eso}	i_tot	Weight
		at n_e= 2000 min^-1	M_a	I_cont.	M_apk	I_max	M_{a_eso}		Weight
		min^-1	Nm	A	Nm	A	Nm		kg
2- stage		593.47	15	2.08	46	5.73	145	3.37	15.7
		...	...	...	...	...	...	...
		...	...	...	...	...	...	...
		...	...	...	...	...	...	...
3-stage		71.25	126	2.08	220	3.30	330	28.07		16
		60.57	149	2.08	220	2.80	330	33.02

		53.71	168	2.08	220	2.50	330	37.24

		47.40	190	2.08	220	2.20	330	42.19
		44.41	200	2.08	220	2.10	330	45.03
		38.83	200	1.80	220	1.80	330	51.51
		36.20	200	1.70	220	1.70	330	55.25

Checking the setting range and minimum speed

Setting range 5 m/min: 22 m/min ≈ 1:4.4.

Check the setting range and the resulting minimum speed in combination with the properties of the control mode of the connected inverter. Select an encoder option if required.

Thermal check of MOVIGEAR^® classic:

Requirement: In order to avoid thermal problems, the effective torque of the application must be smaller than the continuous output torque of the drive unit MOVIGEAR^® classic:

Based on the application calculation, the effective torque is M_eff = 45.1 Nm. The continuous output torque of the selected MOVIGEAR^® drive unit is M_a at n_e 2000 min^-1 = 149 Nm.

If applicable, observe derating factors (derating for installation altitude and ambient temperature).

Result: The requirements are met.

MOVIGEAR® classic