LS ELECTRIC L7NHF Series, Руководство пользователя

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5. Drive Application Functions
5-18
5.3
Electric Gear Setup
5.3.1
Electric Gear
This function allows you to drive the motor by the user unit in which the user intends to give commands.
The electric gear function of the drive does not allow the user to utilize the highest resolution of the
encoder. If the upper level controller has the function of electric gear, it is advisable to use it instead.
Set the gear ratio within the range of 1000~1/1000.
When using the electric gear and the STOP signal at the same time, adjust the value of Quick Stop
Deceleration [0x6085] to set the method you desire to use.
Typically, electric gears are used in the following situations.
(1) To drive the load based on user unit
- The electric gear makes it easy to convert values into user units [UU].
For example, assume that there is a ball screw which moves 1 [mm] for every full turn of the motor
whose encoder has a resolution of 524288 [ppr]. To move the screw by 1 [mm], you have to input
524288 [Pulses] into the servo. If you wish to move it by 27 [mm], addition calculations are
necessary and you have to input the complex value of 14155776 [Pulse].
However, if you use the gear ratio, you can avoid the inconvenience of having to input the command
value.
For example, if you want to move the screw by 1 [mm] by inputting 1 [Pulses] into the servo, you can
set the gear ratio as follows. Since L7C is a multi-level gear, the example includes only 0x300C and
0x3010.
𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸 𝐺𝐺𝐸𝐸𝐺𝐺𝐸𝐸 𝑁𝑁𝑁𝑁𝑁𝑁𝐸𝐸𝐸𝐸𝐺𝐺𝐸𝐸𝑁𝑁𝐸𝐸
[
0𝑥𝑥6091 : 01
]
𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸𝐸 𝐺𝐺𝐸𝐸𝐺𝐺𝐸𝐸 𝐷𝐷𝐸𝐸𝐷𝐷𝑁𝑁𝑁𝑁𝐸𝐸𝐺𝐺𝐸𝐸𝑁𝑁𝐸𝐸
[
0𝑥𝑥6091 : 02
]
× User Demand Pluse[UU]
=
524288
1
× 1[ 𝑈𝑈𝑈𝑈 ] = 524288[ 𝑈𝑈𝑈𝑈
] = 1[
𝑚𝑚𝑚𝑚 ]