Unit Functioning And Operation Overview; Unit Combinations For Positioning Control - Panasonic FPG Series Technical Manual

FPΣ Positioning Unit Fanctions of FPΣ Positioning Unit

1.2 Unit Functioning and Operation Overview

1.2.1 Unit Combinations for Positioning Control

Interfaces provided with the positioning unit
In addition to pulse command output for the motor driver, the positioning unit is equipped with home
input and near home input terminals, with Over limit input(+) and Over limit input(-) input, with
Positioning control start input (Timing input ) for JOG positioning operation, with deviation counter clear
output with home input and near home input terminals, and with deviation counter clear output for the
servo driver.
Use input unit and output unit for PLC safety circuit and control signal interfaces.
In addition to the positioning unit, input and output contacts of the Control unit or FP∑ Expansion I/O
Unit is used in combination for connections between the driver and external output such as servo ON
signals.
Number of output pulses counted by internal high - speed counter.
The number of pulses output is counted as an absolute value by an internal high – speed counter, which
counts them as the "elapsed value".
Counting range: - 2,147,483,648 to +2,147,483,647 (signed 32 - bit)
Note:
If the elapsed value exceeds the maximum (minimum) value, the value returns automatically to the
minimum (maximum) value and continues from that point. The motor does not stop if this occurs, and no
error occurs.
The external encoder can count the feedback pulse from the external encoder.
The internal counter counts the pulse input as "Feedback pulse count value" as the absolute value.
Counting range: - 2,147,483,648 to +2,147,483,647 (signed 32 - bit)
Note:
If the elapsed value exceeds the maximum (minimum) value, the value returns automatically to the
minimum (maximum) value and continues from that point. The motor does not stop if this occurs, and no
error occurs.
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