User`s manual

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Chapter 1 Features, System Configuration and Basic Functions
The JW-12PS/14PS (simply called "this module" from here on) is the pulse output module for the
programmable controller (simply called "PLC" from here on) JW50H/70H/100H. (The JW-12PS is for two
axes, while the JW-14PS is for four axes.)
The pulse train is output to a stepping motor driver or servo motor driver by instructions from the JW50H/
70H/100H to achieve various positioning control.
As position signals are loaded directly from an encoder, closed loop control can be achieved even though
the output type is pulse train, thus configuring a more reliable system.
1-1 Features, basic system configuration
Main features
1. Sinusoidal acceleration/deceleration characteristics
Multi-stage sinusoidal acceleration/deceleration can be selected. This achieves acceleration/
deceleration characteristics matched to the positioning target, suppresses overshooting and
undershooting, and enabled smooth, high-speed operation.
2. Signals input from an encoder can be captured and used in closed loop control.
This module has integrated encoder input, which enables a closed loop to be configured for loading
position signals from the operation system. Position data from the instruction system can be compared
with position data from the operation system to perform compensation, thus building a highly reliable
system.
3. Various operation data from the dedicated support software that runs on Windows 95/98 can be set.
Various operation data can be set and edited on a third-party personal computer (Windows 95/98). This
data can be written to this module, and data on this module can be read, saved and output. (scheduled
to be supported in the near future)
4. Integrated general-purpose inputs (1 input/axis), general-purpose outputs (1 output/axis)
This module is provided with an integrated general-purpose input (1/axis) and an general-purpose
output (1/output) that allow direct I/O. This achieves high-speed response in interrupt startups and
interrupt outputs that do not pass via the PLC.
5. Absolute positioning systems (absolute systems)
Communications with absolute-compatible servo drivers, thus enabling systems that do not require
zero return at a power interruption to be configured. (Consult your dealer for details of servo drivers and
motors that are compatible with absolute systems.)
Example of basic system configuration
Control module
Encoder input (closed loop control)
This module
(JW-12PS/14PS)
Wind 95/98 dedicated
software
Editing/saving/printing,
etc. of various operation
data
Servo motor
Program
Data memory
Operation
data
Operation
data
(FROM)
Operation
data
(RAM)
Deviation
counter
D/A
conversion
Servo
amplifier
Operation
instructions,
operating
status
Feedback pulse
Pulse
instructions
Completion
signals
(scheduled to be supported in the near future)
Encoder input
( closed loop control )
RS-422A
PC
M
PG
Absolute data request command instruction
• In the case of an absolute-compatible driver (manufacturer limited)
Interface
(F/V)
JW50H/70H/100H
I/O refresh