Programming Using Gx Works2; System Configuration - Mitsubishi Electric FX3S Quick Start Manual

FX3S QUICK START MANUAL
n OUTPUT CIRCUIT CONFIGURATION
Load
Y
DC power
supply
COM
Fuse
Load
Y
AC power
supply
COM
Fuse
A common number applies to the
n LIFE OF RELAY CONTACT
The product life of relay contacts varies considerably depending on the
load type used. Take care that loads generating reverse electromotive
force or rush current may cause poor contact or deposition of contacts
which may lead to considerable reduction of the contact product life.
INDUCTIVE LOAD
Inductive loads generate large reverse electromotive force between
contacts at shutdown, which may cause arcing. At a fixed current
consumption, as the power factor (phase between current and voltage)
gets smaller, the arc energy gets larger. The standard life of contacts
used for Inductive loads, such as contactors and solenoid valves, is
500,000 operations at 20 VA.
The following table shows the approximate life of a relay based on the
results of an operation life test.
Test condition: 1 sec. ON / 1 sec. OFF.
Load Capacity
0.2A/100VAC
20VA
0.1A/200VAC
0.35A/100VAC
35VA
0.17A/200VAC
0.8A/100VAC
80VA
0.4A/200VAC
The product life of relay contacts becomes considerably shorter than
the above conditions when the rush overcurrent is shut down.
Some types of inductive loads generate rush current 5 to 15 times
the stationary current at activation. Make sure that the rush current
does not exceed the current corresponding to the maximum specified
resistance load.
LAMP LOAD
Lamp loads generally generate rush current 10 to 15 times the
stationary current. Make sure that the rush current does not exceed the
current corresponding to the maximum specified resistance load.
CAPACITIVE LOAD
Capacitive loads can generate rush current 20 to 40 times the
stationary current. Make sure that the rush current does not exceed
the current corresponding to the maximum specified resistance load.
Capacitive loads such as capacitors may be present in electronic
circuit loads including inverters.
n CAUTIONS IN EXTERNAL WIRING
Protection circuit for load short-circuiting
A short-circuit at a load connected to an output terminal could cause
burnout at the output element or the PCB. To prevent this, a protection
fuse should be inserted at the output.
12
Mitsubishi Electric Automation, Inc.
of [COM ].
Contact Life
3 million times
1 million times
2 hundred thousand times
Contact protection circuit for inductive loads
recommended to use inductive loads with built-in protection circuits.
When using loads without built-in protection circuits, insert an external
contact protection circuit, etc. to reduce noise and extend the product
life.
DC CIRCUIT
Connect a diode in parallel with the load. The diode (for commutation)
must comply with the following specifications:
Item
Reverse voltage
Forward current
AC CIRCUIT
Connect the surge absorber (combined CR components such as a
surge killer and spark killer, etc.) parallel to the load. Select the rated
voltage of a surge absorber that is suitable for the load being used.
Refer to the table below for other specifications.
Item
Electrostatic capacity
Resistance value
INTERLOCK
For loads such as forward/reverse contactors, etc., where a hazardous
condition could result if switched ON simultaneously, an external
interlock should be provided for interlocking the PLC's internal
programs.
IN-PHASE
PLC output contacts (*) should be used in an "in-phase" manner.

5. PROGRAMMING USING GX WORKS2

The software package GX Works2 is a programming tool designed
to be used with FX3S programmable controller. GX Works2 runs on
Microsoft ® Windows ® 95, Windows
Workstation 4.0, Windows 2000, Windows
®
Windows 7, and Windows 8 (hereafter referred to collectively as
® ®
Windows ® ). The software has been designed to be both powerful and
user friendly. While many of the software features can be learned
intuitively, a detailed help file has been incorporated into the software
to assist users in finding answers to their questions.

5.1 SYSTEM CONFIGURATION

RS-232C/RS-422 cable
Connection cabling
Connection cabling for
extension devices
USB
Expansion board
RS-232C
Standard
5 to 10 times the load voltage
Load current or more
Standard
Approx. 0.1μF
Approx. 100 to 200Ω
® 98, Windows ® Me, WindowsNT
XP, Windows Vista ,
® ®
3 3S
S
30MR/ES
FX -232-BD
3G
®