Mitsubishi Electric MELSEC ST Series User manual

MELSEC ST Series
Modular Input/Output System
Installation Manual
Head Station
Power Feeding Modules
Digital I/O-Modules
Analog I/O-Modules
Art.no.: 163534
21042005
Version A INDUSTRIAL AUTOMATION
MIT
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About this Manual
The texts, illustrations, diagrams, and examples contained in this manual are
intended exclusively as support material for the explanation, handling and
operation of the componenets of the MELSEC ST Series.
If you have any questions concerning the programming and operation of the
equipment described in this manual, please contact your relevant sales office
or department (refer to back of cover).
Current information and answers to frequently asked questions are also
available through the Internet (www.mitsubishi-automation.com).
MITSUBISHI ELECTRIC EUROPE B.V. reserves the right to change the
specifications of its products and/or the contents of this manual at any time
without prior notice.
©MITSUBISHI ELECTRIC EUROPE B.V. 04/2005
2MITSUBISHI ELECTRIC
Installation Manual
MELSEC ST Series
Article No.: 163534
Version Changes/Additions/Corrections
A 04/2005 pdp-dk First edition

MELSEC ST Series 3
1 Introduction
1.1 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2 Special Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3 System Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.3.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.3.2 Components of the MELSEC ST Series . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.3.3 Notes on System Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2 Specifications
2.1 General Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.2 Specifications of the Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.2.1 Head Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.2.2 Power Distribution Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.2.3 Digital Input Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.2.4 Transistor Output Modules (Source Type) . . . . . . . . . . . . . . . . . . . . . . . . 15
2.2.5 Contact Output Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.2.6 Analog Input Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.2.7 Analog Output Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3 Description of the Modules
3.1 Head Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.1.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.1.2 LEDs of the Head Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.1.3 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.2 Base Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.3 Power Distribution Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.3.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.3.2 LEDs of the Power Distribution Modules . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.3.3 Terminal Layout and External Connections . . . . . . . . . . . . . . . . . . . . . . 24
3.4 I/O Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.4.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.4.2 LEDs of the I/O Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.4.3 Terminal Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4MITSUBISHI ELECTRIC
4 Installation
4.1 Handling Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.2 Mounting the DIN Rail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.3 Mounting the Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.3.1 Mounting of the Head Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.3.2 Mounting of the Base Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.3.3 Mounting the End plate and the End Bracket . . . . . . . . . . . . . . . . . . . . . 34
4.3.4 Mounting the Electronics Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.4 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4.4.1 Connecting the Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4.4.2 Connecting the I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.5 Connection of the PROFIBUS/DP Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4.6 Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
5 Trouble Shooting
5.1 Checking the System Set-Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
5.2 Head Station Self-Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
5.3 Error Diagnostics using the LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
A Appendix
A.1 External Dimensions of the Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
A.1.1 Head station ST1H-PB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
A.1.2 Base Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
A.1.3 Power Distribution Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
A.1.4 I/O Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Safety Information
For qualified staff only
This manual is only intended for use by properly trained and qualified electrical technicians who
are fully acquainted with automation technology safety standards. All work with the hardware
described, including system design, installation, setup, maintenance, service and testing, may
only be performed by trained electrical technicians with approved qualifications who are fully
acquainted with the applicable automation technology safety standards and regulations.
Proper use of equipment
The moduls of the MELSEC ST Series are only intended for the specific applications explicitly
described in this manual. Please take care to observe all the installation and operating parame-
ters specified in the manual. All products are designed, manufactured, tested and
documentated in agreement with the safety regulations. Any modification of the hardware or
software or disregarding of the safety warnings given in this manual or printed on the product
can cause injury to persons or damage to equipment or other property. Only accessories and
peripherals specifically approved by MITSUBISHI ELECTRIC may be used. Any other use or
application of the products is deemed to be improper.
Relevant safety regulations
All safety and accident prevention regulations relevant to your specific application must be
observed in the system design, installation, setup, maintenance, servicing and testing of these
products. The regulations listed below are particularly important. This list does not claim to be
complete; however, you are responsible for knowing and applying the regulations applicable to
you.
쎲VDE Standards
–VDE 0100
(Regulations for electrical installations with rated voltages up to 1,000V)
–VDE 0105
(Operation of electrical installations)
–VDE 0113
(Electrical systems with electronic equipment)
–VDE 0160
(Configuration of electrical systems and electrical equipment)
–VDE 0550/0551
(Regulations for transformers)
–VDE 0700
(Safety of electrical appliances for household use and similar applications)
–VDE 0860
(Safety regulations for mains-powered electronic appliances and their accessories for
household use and similar applications)
쎲Fire prevention regulations
쎲Accident prevention regulations
–VBG No. 4 (Electrical systems and equipment)
Safety Information
MELSEC ST Series 5

Safety warnings in this manual
In this manual special warnings that are important for the proper and safe use of the products are
clearly identified as follows:
PDANGER:
Personnel health and injury warnings. Failure to observe the precautions described
here can result in serious health and injury hazards.
ECAUTION:
Equipment and property damage warnings. Failure to observe the precautions
described here can result in serious damage to the equipment or other property.
General safety information and precautions
The following safety precautions are intended as a general guideline for using the PLC together
with other equipment. These precautions must always be observed in the design, installation
and operation of all control systems.
PDANGER:
Safety Information
6MITSUBISHI ELECTRIC
쎲
Observe all safety and accident prevention regulations applicable to your spe-
cific application. Installation, wiring and opening of the assemblies, compo-
nents and devices may only be performed with all power supplies discon-
nected.
쎲
Assemblies, components and devices must always be installed in a shock-
proof housing fitted with a proper cover and protective equipment.
쎲
Devices with a permanent connection to the mains power supply must be inte-
grated in the building installations with an all-pole disconnection switch and a
suitable fuse.
쎲
Check power cables and lines connected to the equipment regularly for breaks
and insulation damage. If cable damage is found, immediately disconnect the
equipment and the cables from the power supply and replace the defective ca-
bling.
쎲
Before using the equipment for the first time check that the power supply rating
matches that of the local mains power.
쎲
Residual current protective devices pursuant to DIN VDE Standard 0641 Parts
1-3 are not adequate on their own as protection against indirect contact for in-
stallations with positioning drive systems. Additional and/or other protection
facilities are essential for such installations.
쎲
EMERGENCY OFF facilities pursuant to EN 60204/IEC 204 VDE 0113 must re-
main fully operative at all times and in all control system operating modes. The
EMERGENCY OFF facility reset function must be designed so that it cannot
cause an uncontrolled or undefined restart.
쎲
You must also implement hardware and software safety precautions to prevent
the possibility of undefined control system states caused by signal line cable
or core breaks.
쎲
All relevant electrical and physical specifications must be strictly observed
and maintained for all the modules in the installation.

1 Introduction
The most important characteristics of the MELSEC ST series are summarized in this installation
description. This description is designed to help the experienced user quickly start-up the mod-
ules. Additional information and a detailed mounting and wiring description is in the MELSEC ST
series operating manual. This documentation is provided solely as a quick reference.
1.1 General Description
The MELSEC ST series is a modular input and output system which is connected as slave sta-
tion to a PROFIBUS/DP network. An ST series station consists of
쎲a head station to which the PROFIBUS is connected.
쎲Power supply modules.
쎲Digital and analog I/O modules.
The I/O modules can be combined as desired according to the requirements.
1.2 Special Features
Reduced wiring effort
– External voltages
for supplying sensors and actuators are connected to the power distribution modules of
the ST series only.The other system modules are supplied with power via internal connec-
tions. Wiring requirements are significantly reduced because the supply voltage does not
need to be connected to each individual module.
– PROFIBUS connection
Only the head station is connected to the PROFIBUS/DP network.
–Connection of the I/O modules
Peripherals are connected either via spring clamp terminals, (into which the wires are just
inserted), or via conventional screw clamp terminals.
Flexible System Set-up
The number of inputs and outputs can be adapted easily to the application. Digital modules with
2, 4, and 16 inputs, and with 2 and 16 outputs are available. Up to 63 I/O modules (max. 26 ana-
log I/O modules) can be connected to one head module.
Simple Service
The electronics modules are plugged into a base module to which the peripheral signals are
connected. The base module is mounted on a DIN rail. Electronic modules can be replaced in
operation. No tool is required to do this. The GX Configurator DP is available to configure the
system.
Introduction
MELSEC ST Series 7

1.3 System Configuration
1.3.1 Overview
A slave station set-up with the MELSEC ST series is connected to a PROFIBUS/DP network.
Use is not limited to networks with a MELSEC PLC as master station, but is also possible in net-
works with devices from “third-party” manufacturers.
Populating the stations with ST modules is based on the requirements of the application. Analog
modules for capture or output of voltages or currents are available, in addition to digital input and
output modules.
“ST” means “Slice Type terminal”, and refers to the narrow width of the modules (only 12.6 mm!).
In addition to the narrow modules, cost-saving modules with 16 digital inputs or outputs are also
available.
An ST series slave station always consists of a head station, which establishes the connection
to the PROFIEBUS/DP network. At least one power distribution module, and the digital and/or
analog I/O modules are connected to the head station.
The I/O modules consist of an electronics module and a base module, which establishes the
connection to the head station via screw clamp terminals, or spring clamp terminals. The elec-
tronics modules are simply plugged onto the base module, which in turn is mounted on a DIN
rail. It is not necessary to disconnect the wiring when swapping out a module because the sig-
nals are connected to the base module.
Introduction
8MITSUBISHI ELECTRIC
Q
Y10
QX4 0
Q
61
P-A2
X1X10
X1X10
X1X10
X1X10
GX Configurator DP
GX Configurator ST
Master station (QJ71PB92D
Slave station Slave station
Slave station
Slave station
Slave station (MELSEC ST series)
Bus terminator
Slave station
(MELSEC ST series)
Bus terminator

1.3.2 Components of the MELSEC ST Series
NOTE A base module is required for mounting each ST series electronics module, except for the
head station.
*Base modules with screw clamp terminals and base modules with spring clamp terminals
cannot be used together in one system. Use either one of them.
1.3.3 Notes on System Setup
Operation of the ST1PSD power distribution module is possible in two different modes: In “H”
mode, 24 V DC is made available to supply the head station and the I/O modules, as well as 5 V
DC for the backplane bus. In “R” mode only the internal backplane bus is supplied with 5 V DC.
The mode (H or R) is selected by using different base modules that are identified by the letters
“H” or “R” in the type designation.
At least one ST1PSD is required in “H” mode in order to operate an ST series station. This is
installed on the right side of the head station. Additional power supplies ( with the “R” base mod-
ule) are only required if power consumption of the installed ST modules exceeds the capacity a
single power distribution module.
Introduction
MELSEC ST Series 9
Product Elektronic
module Description
Applicable base modules*
Spring clamp
terminals
Screw clamp
terminals
Head station ST1H-PB For connection to the
PROFIBUS Not necessary Not necessary
Power
distribution
modules
Bus refreshing module ST1PSD
For powering the head
station
(Supply of 5 V DC and
distribution of 24 V DC)
ST1B-S4P2-H-SET ST1B-E4P2-H-SET
For increasing the capac-
ity of the 5 V DC supply ST1B-S4P2-R-SET ST1B-E4P2-R-SET
Power feeding module ST1PDD Distribution of 24 V DC to
the I/O modules ST1B-S4P2-D ST1B-E4P2-D
Digital
I/O modules
Input modules
(Negative common type)
ST1X2-DE1 2 inputs, 24 V DC ST1B-S4X2 ST1B-E4X2
ST1X4-DE1 4 inputs, 24 V DC ST1B-S6X4 ST1B-E6X4
ST1X16-DE1 16 inputs, 24 V DC ST1B-S4X16 ST1B-E4X16
Output modules
ST1Y2-TE2 2 transistor outputs, 24 V
DC, 0,5 A, source type ST1B-S3Y2 ST1B-E3Y2
ST1Y16-TE2
16 transistor outputs,
24 V DC, 0,5 A, source
type
ST1B-S3Y16 ST1B-E3Y16
ST1Y2-TPE3
2 transistor outputs,
24 V DC, 1 A, source
type, short circuit
protected
ST1B-S3Y2 ST1B-E3Y2
ST1Y16-TPE3
16 transistor outputs,
24 V DC, 1 A, source
type, short circuit pro-
tected
ST1B-S3Y16 ST1B-E3Y16
ST1Y2-R2 2 contact outputs
240 V AC / 24 V DC, 2 A ST1B-S4IR2 ST1B-E4IR2
Intelligent func-
tion modules
Analog input modules
ST1AD2-V 2 voltage inputs
ST1B-S4IR2 ST1B-E4IR2
ST1AD2-I 2 current inputs
Analog output modules
ST1DA2-V 2 voltage outputs
ST1DA1-I 1 current output

The ST1PDD power feeding module supplies the connected actuators and sensors with a 24 V
direct current.
Use voltages from different sources to connect to the module’s “SYS” and “AUX” terminals. If
multiple ST1PSD are used, then all “SYS” voltage inputs must be supplied by the same power
source.
The power distribution modules and power feeding modules are not overload-protected. It is
strictly required to provide fuses between power supply and module.
Analog modules must be separately supplied with power. Use an ST1PDD to separate the
power supply of digital and analog modules. The ST1PDD is mounted on the DIN rail to the left of
the modules that it will supply.
The DIN rail on which the modules are mounted must be conductive.
Introduction
10 MITSUBISHI ELECTRIC
AC/DC
AC/DC AC/DC AC/DC
SYS. AUX. AUX. AUX.
24 V
24 V
24 V
24 V
Head station
Bus refreshing moduel
Analog modules Power feeding module
Digital modules (excluding contact output modules)
Contact output modules
DIN rail
Power feeding module
Power supply for
voltage SYS
Power supplies for
voltage AUX
ST1H-PB
ST1PSD
ST1AD2-V ST1DA2-V
ST1PDD ST1PDD
ST1Y2-DE1 ST1X2-DE1
ST1Y2-R2 ST1Y2-R2
161
131 151
ST1X16
-DE1
RUN ERR.
21
11 41
31 61
51 81
71 101
91 121 141
111
11 31 51 71 91 111 131 151
21 41 61 81 101 121141161
12 32 52 72 92 112 132 152
22 42 62 82 102122142 162
13 33 53 73 93 113 133 153
23 43 63 83 103123143 163
14 34 54 74 94 114 134 154
24 44 64 84 104 124144164
ST1X2
-DE1
RUN ERR.
21
11
11 21
12 22
13 23
14 24
ST1PSD
RUN ERR.
PW
11 11
21 21
12 12
22 22
13
14
13
14
23
24
23
24
MITSUBISHI
STATION
ST1H-PB
ON
RS-232C
RELEASE
RESET
PROFIBUSI/F
+-
RUN M1
ERR. M2
REL.
DIA SYN.
BF FRE.
80
S
T
A
T
I
O
N
N
O
40
20
10
8
4
2
1
ST1DA2
-V
RUN ERR.
11 21
12 22
13 23
14 24
ST1AD2
-I
RUN ERR.
11 21
12 22
13 23
14 24
ST1AD2
-V
RUN ERR.
11 21
12 22
13 23
14 24
The maximum width of a station consisting
of modules of the MELSEC ST series is
850 mm. Please note that the width of the
head station is not counted.
max. 850 mm