Commissioning

Notice

Avoid overloading

Motors and gear units often have different operating areas. With higher transmission ratios the gear unit may be overloaded due to multiplication of the motor torque. In this case, the rated motor torque and/or the peak motor torque must be limited.

Failure to limit this can result in overloading and damage to the gear unit.

Commissioning 1:

Observe the operating instructions for the motors

For commissioning, read the original operating instructions for the motors used and follow the steps according to the chapter "Commissioning".

Commissioning example

The procedure for commissioning is described as an example. A different method may be appropriate or necessary, depending on the application of the components.

Commissioning 2:

Example:

Limitation of rated motor current and peak motor current.

Calculation based on the rated motor current:

Standstill torque M0 of the motor: 1 Nm

Rated torque T2N of the gear unit: 8 Nm

Output torque of the gear unit with a transmission ratio i of 10:
1 Nm x 10 = 10 Nm

Result: The rated motor current must be limited to 80%.

Calculation based on the peak motor current:

Standstill torque Mpmax of the motor: 5 Nm

Maximum acceleration torque T2B of the gearbox: 20 Nm

Output torque of the gear unit with a transmission ratio i of 10:
5 Nm x 10 = 50 Nm

Result: The peak motor current must be limited to 40%.

Relevant parameters

Servo drive

Rated current

Peak current

AX5000

P-0-0093 "Configured channel current"

P-0-0092 "Configured channel peak current"

AX8000

"Configured channel rated current"

"Configured channel peak current"

Servo terminal

0x7010:0B "Torque limitation"

0x2003:11 "Max current"

Further Information