4 electronic gear, 4) output signal setting, 5) restriction – Yaskawa Sigma-5 User Manual: Design and Maintenance - Rotary Motors - Analog Voltage and Pulse Train Reference User Manual

Page 153: Rotation

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5.4 Position Control

5-39

5

Ope

rat

ion

(4) Output Signal Setting

This output signal indicates when the multiplier of the input reference pulse has been switched for the Refer-
ence Pulse Input Multiplication Switching Input signal (/PSEL).

Note: Use parameter Pn510.2 to allocate the /PSELA signal for use. For details, refer to 3.3.2 Output Signal Allocations.

(5) Restriction

When using the following utility functions, the reference pulse input multiplication switching function is dis-
abled.

5.4.4 Electronic Gear

The electronic gear enables the workpiece travel distance per reference pulse input from the host controller.

The minimum unit of the position data moving a load is called a reference unit.

Note: If the multiplier of the input reference pulse is switched, the input reference pulse from the host controller will be

multiplied by n and defined as the reference unit of the position data. ("n" is the multiplier of the reference pulse.)

Type

Signal

Name

Connector

Pin Number

Setting

Meaning

Output /PSELA

Must be allocated

ON (closed)

The multiplier of the input reference pulse is enabled.

OFF (open)

The multiplier of the input reference pulse is disabled.

Parameter No.

Function

Fn004

Program JOG operation

Fn201

Advanced autotuning

When the Electronic Gear is Not Used:

Calculate the revolutions.
1 revolution is 6 mm. Therefore, 10 ÷ 6 = 10/6 revolutions.

When the Electronic Gear is Used:

Ball screw pitch: 6 mm

Workpiece

Encoder resolution (20 bit) 1048576

1

2

3

The section indicates the difference between using and not using an electronic gear when a
workpiece is moved 10 mm in the following configuration.

Calculate the required reference pulses.
1048576 pulses is 1 revolution. Therefore, 10/6

× 1048576 = 1747626.66 pulses.

Input 1747627 pulses as reference pulses.

Reference pulses must be calculated per reference.

→ complicated

The reference unit is 1

μm. Therefore, to move the workpiece 10 mm (10000 μm),

1 pulse = 1

μm, so 10000 1 = 10000 pulses.

Input 10000 pulses.

÷

Calculation of reference pulses per reference is not required.

→ simplified

Rotation

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