Mitsubishi Electric MELSEC Q Series User manual

1
How to read this guide
The following shows the symbols used in this Quick start guide with descriptions and examples.
Symbol Description Example
This symbol explains information
you need to know.
Select [View] → [Comment] ( key + key).
The comment display/hide setting can be switched.
This symbol describes the
references of manuals and pages
for more details.
For details, refer to the following manual.
QnUCPU User's Manual (Function
Explanation, Program Fundamentals): SH-
080807ENG
This symbol describes content
that must be noted in operation.
When mounting the module, the power must be turned
OFF.
[ ] Menu names on the menu bar ([ ]
→[ ] shows drop-down menus.) Select [Project] → [New project].
Buttons on the screen button
Keys on the keyboard key
( )
Another procedure
corresponding to a drop-down
menu (icons and keys on the
keyboard)
Select [Online] → [Monitor] → [Monitor mode] (
key) ( ).
< > Tab names on the screen <Program common> tab
Point
Ctrl
F5
Reference
Caution
F4
F3

2
Generic terms
The following explains the terms used in this Quick start guide.
Generic term Description
Programmable controller
system
Combination of the power supply module, the CPU module, the I/O modules,
and the base unit.
Sequence control Consecutively processes each control step based on the fixed order or
procedure.
QnACPU General term for the programmable controller CPU available in MELSEC-QnA.
GX Developer Application software to create sequence programs and communicate with the
programmable controllers.
CPU module The core module to unify the controls of the programmable controllers.
Q02UCPU is used in this Quick start guide.
Power supply module Supplies electricity to each module, including the CPU module and the I/O
modules.
Base unit The unit that mounts the power supply module, the CPU module, and the I/O
modules.
Building block
A method to organize one system by combining necessary elements.
Elements such as the power supply module, the CPU module, the I/O
modules, and the base unit are combined in the programmable controller
system.
Limit switch A switch to suspend mobile objects on both sides of a moving apparatus for
safety reasons.
Relay Breaks/connects the electricity with electrical switching.
Contactor
Generally called an electromagnetic contactor to break circuits and switch the
heater.
Solenoid valve An electromagnet with a direct/alternating current solenoid valve. Connected
to the output side of the programmable controller.
Ground Prevents electric shocks and malfunctions.
Control panel
Transfers signals to other equipment. Combines such elements as breakers,
switches, protection equipment, relays, and programmable controllers.
Receives signals from switches and sensors, and supply electricity to operate
motors and solenoid valves of the machines and equipment.
Isolation transformer
A two-winding transformer.
The primary and secondary coil are wound separately to protect the secondary
load.
Contact An input used when creating a sequence program.
Coil An output used when creating a sequence program.
Device A location to store data such as ON/OFF, numeric values, and character
strings in the programmable controller.
Internal relay Breaks/connects the sequence circuit by switching ON/OFF.
Sequence program A program to perform sequence control.
Project Indicates a GX Developer project in this Quick start guide.
Consists of programs, device comments, and parameters.
Parameter Setup information necessary to operate the programmable controller system.
Modules and the network are set by writing parameters to the CPU module.
PLC parameter Setup information for modules, devices, and programs used in the
programmable controller system.
Step number Numbers attached in order from the start of instruction in the sequence
program.
Logical operations
One of the basic operation methods in programming.
Logical operations consist of three basic operations: logical AND, logical OR,
and logical NOT.
Debug An operation in which programmers search for and correct bugs in the
sequence program.

3
Introduction
This Quick start guide explains the basic procedures for the first-time use of the Mitsubishi
programmable controller MELSEC-Q series CPU module (CPU module).
You can easily understand how to use the programmable controller with this manual.
Reference
Precautions
Read "SAFETY PRECAUTIONS" in the QCPU User's Manual carefully and use the
programmable controllers safely.
Types of CPU modules
This Quick start guide explains the usage examples for Universal model QCPU. For the
usage of other CPU modules, refer to the following manuals and be aware of the
differences.
QCPU User's Manual (Hardware Design, Maintenance and Inspection):
SH-080483ENG
Qn(H)/QnPH/QnPRHCPU User's Manual (Function Explanation, Program
Fundamentals): SH-080808ENG
QnUCPU User's Manual (Function Explanation, Program Fundamentals):
SH-080807ENG
QCPU Programming Manual (Common Instructions): SH-080809
QnACPU Programming Manual (Common Instructions): SH-080 810
Caution
This Quick start guide explains operations in the programmable controller system described
in "2System Configuration" (P.9).
Read the manuals referred in the following page when you design or manage the system.
Introduction of related manuals (P.6)
Quick start guide
Mounting and wiring modules
Checking operations
Creating programs
100VAC
24VDC
(Y10)
(Y1B)
(Y1F)
0
3
X1X0
X2

4
Programmable controllers
The programmable controllers perform sequence control and logical operations by switching the
output of output equipment ON/OFF according to the command signal from the input equipment.
Other equipment is shown below.
Power Power
<Input equipment> <Programmable controller> <Output equipment>
Push-button switch
Input module
Operation
Output interface
Memory
CPU module Output module
Data
Program
Personal computer
Creating and
debugging programs
Input interface
QX40
24VDC
4mA
NC
QY40P
24VDC
0 . 1A
12VDC
<Examples of input equipment>
Limit switch Input relay Switch
<Examples of output equipment>
Contactor Solenoid valve

5
Programmable controller usage example
This example shows the programmable controller system in a beverage plant.
The following explains the procedure for putting bottles in a case.
1When the switch is turned ON, the "IN OPERATION" lamp is lit, and the conveyor is set in
operation.
2When the conveyor brings a bottle case to a particular position, the sensor senses it.
3When the bottle case is sensed, the stopper operates to stop it.
4The lifter goes up, the arm moves forward, and the lifter goes down to put bottles in the case.
5One is added to the value in the product counter.
6When the CPU module concludes that the above procedure is completed, the stopper goes down
to let the cases flow.
Repeat procedures 2to 6.
IN OPERATION
Beverage plant
CONTROL
START
STOP
COUNTER
4 Lifter 4
Arm
1
Lamp
1
Conveyor 2
Sensor
6
CPU module
5 Product
counter
1
Start switch
36
Stopper

6
Introduction of related manuals
This Quick start guide explains the basic procedures for introducing programmable controllers.
Read the following manuals to use each module with a full understanding according to your purpose.
Learning about programmable controllers
Learning about programming
Learning about programming tools (software)
QCPU User's Manual (Hardware Design, Maintenance and Inspection) . . . . .SH-080483ENG
This manual explains specifications, settings, and maintenance methods for the CPU
module, the power supply module, and the base unit.
Qn(H)/QnPH/QnPRHCPU User's Manual (Function Explanation, Program Fundamentals)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SH-080808ENG
QnUCPU User's Manual (Function Explanation, Program Fundamentals). . . .SH-080807ENG
This manual explains the functions of the CPU modules, and about devices and parameters
that are the basic knowledge necessary for programming.
I/O Module Type Building Block User's Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . .SH-080042
This manual explains specifications and functions for the input module and the output
module.
QCPU Programming Manual (Common Instructions) . . . . . . . . . . . . . . . . . . . . . . . .SH-080809
QnACPU Programming Manual (Common Instructions). . . . . . . . . . . . . . . . . . . . . SH-080810
This manual explains the instructions used in programming.
GX Developer Version 8 Operating Manual (Startup) . . . . . . . . . . . . . . . . . . . . . SH-080372E
This manual explains the installation method for GX Developer Version 8.
GX Developer Version 8 Operating Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SH-080373E
This manual explains operation methods including program creation, parameter setting,
writing/reading programs, and debugging.

7
Using programmable controllers
The programmable controllers are installed with procedures as shown below.
1Preparing for Operation (P.8)
Preparing the necessary equipment.
2System Configuration (P.9)
Introducing equipment used for operations in this Quick start guide.
3Mounting Modules (P.10)
Mounting the CPU module and other modules on the base unit.
4Wiring Modules (P.11)
Wiring the power supply module, the CPU module, and the I/O modules.
5Checking Power Supply (P.13)
Turning ON the system to check the condition of the CPU module.
6Programming (P.14)
Creating a program with GX Developer.
7Writing Programs (P.21)
Writing a program created with GX Developer to the CPU module.
8Checking Operation (P.25)
Executing the program by running the CPU module. Checking that ON/OFF
inputs correspond to ON/OFF outputs.

8
1Preparing for Operation
Preparing the necessary equipment
* GX Developer Version 8 needs to be installed in your personal computer in advance.
Reference
GX Developer, the design and maintenance tool for Mitsubishi programmable controller, is
necessary to set up programmable controllers and create sequence programs.
For the installation and operation of GX Developer, refer to the following manuals.
GX Developer Version 8 Operating Manual (Startup): SH-080372E
GX Developer Version 8 Operating Manual: SH-080373E
Compatible GX Developer version
The CPU module used and its functions differ in each version of GX Developer.
For the compatible GX Developer version, refer to the following manual.
QCPU User's Manual (Hardware Design, Maintenance and Inspection):
SH-080483ENG
5 Lamp 6 Switch
1
Programmable controller 2 Personal computer 3
GX Developer
4
USB cable
Explanations for each
module are on the next
page Windows-based PC
Version8
USB mini B type
Install *

9
2System Configuration
System configuration example
This Quick start guide explains the following system configuration as an example.
Inputs and outputs are configured as switches and lamps respectively.
* Wires to the power supply module and the power of the I/O modules are omitted.
No. Name Model
1Base unit Q33B
2Power supply module Q62P
3CPU module Q02UCPU
4Input module QX40
5Output module QY40P
6Connection cable (USB cable) MR-J3USBCBL3M
(USB A type - USB mini B type)
Switch (input) Lamp (output)Programmable controller
QY40P
0 1 2 3 4 5 6 7
8 9 A B C D E F
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
COM
24VDC
0 . 1A
12VDC
QX40
0 1 2 3 4 5 6 7
8 9 A B C D E F
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
COM
F
24VDC
4mA
NC
1
25
4
3
6

10
3Mounting Modules
Mount prepared modules on the base unit.
A battery connector must be installed when using the CPU module for the first time.
Mounting modules
Caution
The power supply must be disconnected when mounting modules.
Point
Installing a battery in the CPU module
Base unit Module
Side view
Side view
Module fixing
projection
Module fixing
projection
Base unit
Module
fixing hole
1Insert a module fixing
projection into a module
fixing hole on the base
unit.
2Push the module in the
direction of arrow until
it clicks.
Complete
Module
Module
fixing hole
1Open the cover at the
bottom of the CPU module.
2Insert the connector of
battery into the connector
of CPU module.
3Close the cover at the
bottom of the CPU module.
2
3
Connector of
CPU module
Connector of
battery Battery
CPU module
Complete

11
4Wiring Modules
Wire the power supply module, the input module, and the output module.
Wiring the power supply module
The following shows an example of wiring the power line and the ground wire to the base unit.
Wiring the input module
The following shows an example of wiring the input module (QX40).
Caution
The power supply must be disconnected when wiring modules.
Reference
For details of wiring precautions, refer to the following manual.
QCPU User's Manual (Hardware Design, Maintenance and Inspection): SH-080483ENG
ERR
24V
24VDC
0.5A
24G
(FG)
(LG)
N
L
INPUT
ERR
2FG
2LG
1INPUT
100-120VAC
1Connect the
100VAC power
supply to the
power input
terminals.
2Connect the LG
and FG terminals.
Power supply module
(Q62P)
Ground
wire Grounding
100VAC
AC
Switch 1
Signal: X0
Switch 2
Signal: X1
Switch 3
Signal: X2
24VDC
4mA
NC

12
Wiring the output module
The following shows an example of wiring the output module (QY40P).
Point
Wire the power supply lines separately for the I/O equipment and the programmable
controller as shown below.
16
17
18
15
14
13
12
11
10
9
8
7
5
5
4
3
2
1
0 1 2 3 4 5 6 7
8 9 A B C D E F
24VDC
12VDC
0 . 1A
L
Lamp 1
Signal: Y10
L
Lamp 2
Signal: Y1E
L
Lamp 3
Signal: Y1F
100VAC
200VAC
Main power
supply
Relay terminal
block
Programmable controller
power supply
Programmable
controller
I/O equipment
Isolation
transformer
Inside of control panel
I/O power supply
T1

13
5Checking Power Supply
Check that the power supply runs normally after configuring the system, mounting modules, and
wiring.
Operating procedure
1. Check before turning ON the power supply.
• Wiring of the power supply
• Power supply voltage
2. Set the CPU module to STOP.
Set the switch on the front of the CPU module to STOP.
3. Supply power.
4. Check that the power supply runs normally.
Check the front LEDs on each module.
The following shows the normal state of the LEDs.
1Power supply module: "POWER" LED lights in
green.
2CPU module: "MODE" LED lights in green.
Construction of the system is complete.
Turn OFF the power supply.
Point
Troubleshooting
1When the "POWER" LED, "MODE" LED are OFF or flashing, refer to the following page.
Troubleshooting (P.28)
2When a parameter or program is not written to the CPU module,
the "ERR." LED flashes red, but it is not a problem at this stage.
RESET/STOP/RUN
12
"ERR." LED
flashes red.

14
6Programming
Create a program (sequence program) for sequence control.
"Devices" and "instruction symbols" in programming
Combine "devices" and "instruction symbols" to create a sequence program.
1. Devices
Devices include bit devices and word devices.
1Bit device: handles one-bit information such as ON/OFF of a switch or a lamp.
Examples of bit device
2Word device: handles 16-bit information such as numeric values and character strings.
Examples of word device
Device name Device
symbol Description
Input X Receives a signal from an external device such as a switch.
Output Y Outputs a signal to an external device such as a lamp
Internal relay M Temporarily saves data status in programs.
Timer (contact) T Used to measure time (when the set time comes, the contact is set to
ON).
Counter (contact) C
Used to count the number of times the input condition turns from OFF
to ON (when the counter reaches the set number, the contact is set to
ON).
Device name Device
symbol Description
Data register D Registers numeric values and character strings.
Timer (current value) T Used to measure time (stores the current value of measuring time).
Counter (current value) C Used to count the number of times the input condition turns from OFF
to ON (stores the current value of the counter).
ON/OFF of a switch ON/OFF of a lamp
Numeric value Character string

15
2. Instruction symbols
The following shows the basic instructions of sequence control.
Creating a program
Create a sequence program.
The following shows how to create a sequence program with basic devices and instruction symbols
for sequence control.
The following devices and instruction symbols are used.
• Input: X device
• Output: Y device
• Instruction symbols: , ,
Create a program that performs the following controls.
• When the X0 and X1 switches are turned ON, the Y10 output lamp turns ON.
• When the X2 switch is turned ON, the Y1E and Y1F output lamps turn OFF.
The following explains the procedure to create this sequence program.
Instruction
symbol Description
Open contact: Conducts when an input signal is
set to ON.
Closed contact: Conducts when an input signal is
set to OFF.
Coil output: Outputs data to a specified device.
Reference
This section explains the most basic devices and instructions.
In addition to those listed above, other devices and instructions convenient for sequence
control are available.
QCPU Programming Manual (Common Instructions): SH-080809
QnACPU Programming Manual (Common Instructions): SH-080810
QY40P
0 1 2 3 4 5 6 7
8 9 A B C D E F
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
COM
24VDC
0 . 1A
12VDC
QX40
0 1 2 3 4 5 6 7
8 9 A B C D E F
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
COM
F
X0
X1
X2
Y10
Y1E
Y1F
<Y10>
<Y1E>
<Y1F>
[END]
0
3
6
X1X0
X2
NC
24VDC
4mA

16
Starting GX Developer
Operating procedure
After starting, the GX Developer main screen is displayed.
Creating a new project
Operating procedure
Select [Start] [All Programs]
[MELSOFT Application]
[GX Developer].
1Select [Project] 
[New project]
( key + key) ( ).
2Select QCPU (Q mode).
3Select the QCPU to be used
(Q02UCPU in this manual).
4Click the button.
A project tree is displayed.
A ladder screen is displayed.

17
Entering a sequence program
Operating procedure
1. Enter .
2. Enter .
3. Enter .
2 Enter device X0.
3
Click the button.
1
Click ( key).
2 Enter device X1.
3
Click the button.
1
Click ( key).
2 Enter device Y10.
1
Click ( key).
3 Click the button.
Coil Y10 is displayed.

18
4. Enter .
5. Enter .
6. Draw a line.
2 Enter device X2.
1
Click ( key).
3 Click the button.
2 Enter device Y1E.
1
Click ( key).
3 Click the button.
Coil Y1E is displayed.
2 Drag and drop in the
direction of the arrow.
1
Click ( key).