WAGO 750-523 User manual

Fieldbus Independent
I/O Modules
1 DO AC 230 V 16 A/Relay 1a/Pot.
free
750-523
Manual
Version 1.0.5

ii • General
WAGO-I/O-SYSTEM 750
I/O Modules
Copyright ©2006 by WAGO Kontakttechnik GmbH & Co. KG
All rights reserved.
WAGO Kontakttechnik GmbH & Co. KG
Hansastraße 27
D-32423 Minden
Phone: [phone] – 0
Fax: [phone] – 1 69
E-Mail: [email protected]
Web: http://www.wago.com
Technical Support
Phone: [phone] – 5 55
Fax: [phone] – 85 55
E-Mail: [email protected]
Every conceivable measure has been taken to ensure the correctness and com-
pleteness of this documentation. However, as errors can never be fully ex-
cluded, we would appreciate any information or ideas at any time.
E-Mail: [email protected]
We wish to point out that the software and hardware terms as well as the tra-
demarks of companies used and/or mentioned in the present manual are gener-
ally trademark or patent protected.

Content • iii
WAGO-I/O-SYSTEM 750
I/O Modules
Content
1Important Comments ................................................................................. 4
1.1 Legal Principles........................................................................................4
1.1.1 Copyright.............................................................................................4
1.1.2 Personnel Qualification .......................................................................4
1.1.3 Intended Use ........................................................................................4
1.2 Symbols.................................................................................................... 5
1.3 Number Notation......................................................................................5
1.4 Safety Notes .............................................................................................6
1.5 Scope ........................................................................................................6
2I/O Modules ................................................................................................. 7
2.1 Digital Output Modules............................................................................7
2.1.1 750-523 [1 DO AC 230 V 16 A/Relay 1a/Pot. free] ........................... 7
2.1.1.1 View................................................................................................7
2.1.1.2 Description......................................................................................7
2.1.1.3 Display Elements ..........................................................................10
2.1.1.4 Schematic Diagram.......................................................................10
2.1.1.5 Technical Data ..............................................................................11
2.1.1.6 Process Image ............................................................................... 12
2.1.1.7 Load Limiting Value Graph of the Relay ..................................... 13
2.1.2 Contact Protective Circuit for Relay Modules .................................. 14

4 • Copyright
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WAGO-I/O-SYSTEM 750
I/O Modules
1 Important Comments
To ensure fast installation and start-up of the units described in this manual,
we strongly recommend that the following information and explanations are
carefully read and abided by.
1.1 Legal Principles
1.1.1 Copyright
This manual is copyrighted, together with all figures and illustrations con-
tained therein. Any use of this manual which infringes the copyright provi-
sions stipulated herein, is not permitted. Reproduction, translation and elec-
tronic and photo-technical archiving and amendments require the written con-
sent of WAGO Kontakttechnik GmbH & Co. KG. Non-observance will entail
the right of claims for damages.
WAGO Kontakttechnik GmbH & Co. KG reserves the right to perform modi-
fications allowed by technical progress. In case of grant of a patent or legal
protection of utility patents all rights are reserved by WAGO Kontakttechnik
GmbH & Co. KG. Products of other manufacturers are always named without
referring to patent rights. The existence of such rights can therefore not be
ruled out.
1.1.2 Personnel Qualification
The use of the product detailed in this manual is exclusively geared to special-
ists having qualifications in PLC programming, electrical specialists or per-
sons instructed by electrical specialists who are also familiar with the valid
standards. WAGO Kontakttechnik GmbH & Co. KG declines all liability re-
sulting from improper action and damage to WAGO products and third party
products due to non-observance of the information contained in this manual.
1.1.3 Intended Use
For each individual application, the components supplied are to work with a
dedicated hardware and software configuration. Modifications are only per-
mitted within the framework of the possibilities documented in the manuals.
All other changes to the hardware and/or software and the non-conforming use
of the components entail the exclusion of liability on part of WAGO Kon-
takttechnik GmbH & Co. KG.
Please direct any requirements pertaining to a modified and/or new hardware
or software configuration directly to WAGO Kontakttechnik GmbH & Co.
KG.

Intended Use • 5
View
WAGO-I/O-SYSTEM 750
I/O Modules
1.2 Symbols
Danger
Always abide by this information to protect persons from injury.
Warning
Always abide by this information to prevent damage to the device.
Attention
Marginal conditions must always be observed to ensure smooth operation.
ESD (Electrostatic Discharge)
Warning of damage to the components by electrostatic discharge. Observe
the precautionary measure for handling components at risk.
Note
Routines or advice for efficient use of the device and software optimization.
More information
References on additional literature, manuals, data sheets and INTERNET
pages
1.3 Number Notation
Number Code Example Note
Decimal 100 normal notation
Hexadecimal 0x64 C notation
Binary '100'
'0110.0100'
Within ',
Nibble separated with dots

6 • Intended Use
View
WAGO-I/O-SYSTEM 750
I/O Modules
1.4 Safety Notes
Warning
Switch off the system prior to working on bus modules!
In the event of deformed contacts, the module in question is to be replaced, as
its functionality can no longer be ensured on a long-term basis.
The components are not resistant against materials having seeping and insu-
lating properties. Belonging to this group of materials is: e.g. aerosols, sili-
cones, triglycerides (found in some hand creams).
If it cannot be ruled out that these materials appear in the component envi-
ronment, then additional measures are to be taken:
- installation of the components into an appropriate enclosure
- handling of the components only with clean tools and materials.
Attention
Cleaning of soiled contacts may only be done with ethyl alcohol and leather
cloths. Thereby, the ESD information is to be regarded.
Do not use any contact spray. The spray may impair the functioning of the
contact area.
The WAGO-I/O-SYSTEM 750 and its components are an open system. It
must only be assembled in housings, cabinets or in electrical operation
rooms. Access must only be given via a key or tool to authorized qualified
personnel.
The relevant valid and applicable standards and guidelines concerning the
installation of switch boxes are to be observed.
ESD (Electrostatic Discharge)
The modules are equipped with electronic components that may be destroyed
by electrostatic discharge. When handling the modules, ensure that the envi-
ronment (persons, workplace and packing) is well grounded. Avoid touching
conductive components, e.g. gold contacts.
1.5 Scope
This manual describes the Digital Output Module 750-523
1 DO AC 230 V 16 A/Relay 1a/Pot. free of the modular
WAGO-I/O-SYSTEM 750.
Handling, assembly and start-up are described in the manual of the Fieldbus
Coupler. Therefore this documentation is valid only in the connection with the
appropriate manual.

750-523 [1 DO AC 230 V 16 A/Relay 1a/Pot. free] • 7
View
WAGO-I/O-SYSTEM 750
I/O Modules
2 I/O Modules
2.1 Digital Output Modules
2.1.1 750-523 [1 DO AC 230 V 16 A/Relay 1a/Pot. free]
1-Channel Relay Output Module AC 230 V, 16 A,
isolated outputs, 1 make contact, bistable, manual operation
2.1.1.1 View
LL
750-523
DO DO
0
1
AUTO
HAND
HAND
Status
manual mode
Manual / automatic
Data contacts
Manual operationl
Switched status
Power jumper contacts
L
DO N
Fig. 2.1.1-1: 2-Channel Relay Output Module 750-523 g052300e
2.1.1.2 Description
A connected actuator or load is switched via the relay output module.
The 24 V supply is derived from the power jumper contacts to trigger the re-
lays.
The module has one output channel and enables the connection of one or two
actuators.
The signal output DO has two parallel connections so that an actuator can be
wired using one or two conductors of cross section > 2.5 mm². It is also possi-
ble to connect two actuators in parallel.
The module is equipped with an isolated contact relay so that only the connec-
tion points of the relay contacts are available on the fieldside.
Due to the isolated contacts, it is possible, for example, to connect several re-
lays in series by grouping these modules.

8 • 750-523 [1 DO AC 230 V 16 A/Relay 1a/Pot. free]
Description
WAGO-I/O-SYSTEM 750
I/O Modules
The relay contact L can be supplied with 230 VAC external voltage.
By closing the relay, the voltage applied to L will be switched to the second
relay contact DO.
The relay contact L is also equipped with two parallel connections.
Therefore, the voltage can be applied via one or two conductors of cross sec-
tion > 2.5 mm². The voltage can also be supplied to the following modules via
the second connection.
The automatic or manual operating mode can be selected using the "man-
ual/automatic" switch.
In the "automatic" operating mode, the relay is operated via the control system
requiring a 24 V power supply fed in via the internal power jumper contacts of
an adjacent supply module.
In this operating mode, manual status transitions which may occur via the red
"manual operation" switch (1/0) will be reset by the control system after less
than 500 ms.
In the "manual" operating mode, the relay cannot be switched via the control
system. Operation can only be performed manually via the red "manual opera-
tion" switch (1/0). Moreover, the actuator can be switched without 24 V
power supply.
Manual
AUTO
HAND
1
0
DO
Control system
- Manual operation - Automatic Reset
Supply voltage
Fig. 2.1.1-2: Status-Diagram of the Relay Output Module 750-523 g052303e
The "manual" mode is indicated via the status LED and transmitted as status
bit into the process image.
The switched status "relay closed", "relay open" is indicated via the "manual
operation" switch (1/0).

750-523 [1 DO AC 230 V 16 A/Relay 1a/Pot. free] • 9
Description
WAGO-I/O-SYSTEM 750
I/O Modules
Note
The relay is bistable, i.e. stable in both defined switched status. Therefore, the
current switched status and information about this status remain unchanged in
the event of a loss of voltage.
The relay meets both international standards of IEC and DIN EN 61810 part 1
/ VDE 0435 part 201 as well as overload and short circuit requirements of IEC
and EN 61036 / 61037.
Any configuration of the output modules is possible when designing the field-
bus node. Grouping of module types is not necessary.
Attention
The relay output module 750-523 should not be directly connected to the
following modules: analog input module 750-467 (2 DI DC 0-10 V, up to
version number 3005), 750-468 (4 DI DC 0-10 V, up to version number 3005)
and 750-476 (2 DI DC +/-10 V, up to version number 3005)!
The output module has 24 V and 0 V built-in power jumper contacts. The
24 V power supply is used to trigger the relays.
The module is powered using an adjacent I/O module or a supply module via
power jumper contacts. The power supply to the following I/O modules is
made automatically by means of power contacts.
Warning
The maximum current of the internal power jumper contacts is 10 A. When
configuring the system it is important not to exceed the maximum/sum cur-
rent. However, if such a case should occur, another supply module must be
added.
Attention
A power supply module is required to connect the following I/O modules to
the ground!
Note
For the protection of relay coils and contacts, inductive loads must be damp-
ened with an effective protection circuit!
Examples of protection circuits can be seen in the section 2.1.2 "Contact Pro-
tective Circuit for Relay Modules".
The output module 750-523 can be used with all couplers/controllers of the
WAGO-I/O-SYSTEM 750.

10 • 750-523 [1 DO AC 230 V 16 A/Relay 1a/Pot. free]
Display Elements
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.3 Display Elements
0
1
AUTO
HAND
HAND
0
HAND
Status
manual mode
Manual operation
Switched status
Fig. 2.1.1-3: Display Elements g052302x
LED Channel Designation State Function
off Operating mode: automatic
yellow (flashing) 1 Status
manual operation on Operating mode:
manually operated
LED Channel Designation State Function
0 Relay opened
(1/0) 1 Switching status
1 Relay closed
2.1.1.4 Schematic Diagram
750-523
12
34
24 V
0V
DO
24 V
0V
DO
L
U
10nF
10nF 10nF
Manual
Manual
Fig. 2.1.1-4: 1-Channel Relay Output Module 750-523 g052301e

750-523 [1 DO AC 230 V 16 A/Relay 1a/Pot. free] • 11
Technical Data
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.5 Technical Data
Module Specific Data
Number of outputs 1 make contact
Current consumption max (internal) 5 mA
Current consumption
(Power jumper contacts) max.
80 mAs (Pulsed current)
Switching voltage max. AC 440 V
Switching power max. 5 kVA
Switching current max. AC 16 A
Contact material AgSnO2
Mechanical life 106switching operations
Isolation 1.5 kVeff. (System/Field)*
*2.5 kV rated surge voltage
overvoltage category III
Internal bit width 2 Bit In (Manual status, -)
2 Bit Out (DO, -)
Dimensions (mm) W x H x L 24 x 64* x 100
* from upper edge of 35 DIN rail
Weight ca. 110 g
Standards and Regulations (cf. Chapter 2.2 of the Coupler/Controller Manual)
EMC-Immunity to interference (CE) acc. to EN 50082-2 (96)
EMC-Emission of interference (CE) acc. to EN 50081-1 (93)
Approvals (cf. Chapter 2.2 of the Coupler/Controller Manual)
CULUS (UL508)
Conformity Marking

12 • 750-523 [1 DO AC 230 V 16 A/Relay 1a/Pot. free]
Process Image
WAGO-I/O-SYSTEM 750
I/O Modules
Switching operations
Switchable lamp loads 100.000 30.000
Incandescent lamp 1.250 W 2.500 W
Fluorescent lamp, not compen-
sated
1.200 W 2.500 W
Fluorescent lamp, parallel com-
pensated
650 W / 70 µF 1.300 W / 140 µF
Fluorescent lamp, dual circuit 2x1.200 W 2x2.500 W
Halogen lamp (AC 230V) 1.200 W 2.500 W
Low voltage halogen lamp
with transformer
500 VA 500 VA
Mercury arc /sodium discharge
lamp not compensated
1.000 W 2.000 W
Mercury arc /sodium discharge
lamp parallel compensated
1.000 W / 70 µF 2.000 W / 140 µF
Dulux lamp, not compensated 800 W 1.600 W
Dulux lamp, parallel compensated 560 W / 70 µF 1.100 W / 140 µF
More Information
Detailed references to the approvals are listed in the document "Overview
Approvals WAGO-I/O-SYSTEM 750", which you can find on the CD ROM
ELECTRONICC Tools and Docs (Item-No.: 0888-0412)
or in the internet under:
www.wago.com !Documentation !WAGO-I/O-SYSTEM 750 !Sys-
tem Description
2.1.1.6 Process Image
Input process values of module 750-523
Input bit B1 B0
Meaning not used Status
"manual operation"
Output process values of module 750-523
Input bit B1 B0
Meaning not used controls DO

750-523 [1 DO AC 230 V 16 A/Relay 1a/Pot. free] • 13
Load Limiting Value Graph of the Relay
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.7 Load Limiting Value Graph of the Relay
100
0,1 1 10
10
20
30
50
200
300
0,5 516 20
Direct Current (A)
Direct Voltage (V)
Fig. 2.1.1-5: Direct current load limiting value graph at resistive load g052304e

14 • Digital Output Modules
Contact Protective Circuit for Relay Modules
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.2 Contact Protective Circuit for Relay Modules
Switching off inductive loads such as contactors and solenoid valves can gen-
erate transients with voltage peaks of up to several thousand volts. Very often,
these transients exceed the permissible limits specified in the EMC standards.
They must therefore be limited by using external circuits. Furthermore, they
cause an arc, which may destroy the switching contact, and have a significant
impact on the lifetime and safety of the relay.
The following protective circuits, which are directly connected to the source
of the interference in parallel with the consumer, have proved successful in
practice:
Load Protection Addi-
tional Off
Delay
Defined Induction
Voltage
Limitation
Bipolar
Effective
Attenuation
Advantages/Disadvantages
Diode
U
D
Load
g051211e
long yes (UD) no
Advantages:
- easy implementation
- cost-effective, reliable
- uncritical dimensioning
- low induction voltage
Disadvantages:
- attenuation only via load
resistor
- long off delay
Series connection
diode/zener diode
U
ZD
Load
g051212e
medium to
short yes (UZD) no
Advantages:
- uncritical dimensioning
Disadvantages:
- attenuation only above
UZD
Suppressor diode
U
ZD
Load
g051213e
medium to
short yes (UZD) yes
Advantages:
- cost-effective
- uncritical dimensioning
- limitation of positive)/
negative peaks
- suitable for A.C. voltage
Disadvantages:
- attenuation only above
UZD
Varistor
U
VDR
VDR
Load
g051214e
medium to
short yes (UVDR) yes
Advantages:
- high power absorption
- uncritical dimensioning
- suitable for A.C. voltage
Disadvantages:
- attenuation only above
UVDR
R/C combination
U
R
C
RC
Load
g051215e
medium to
short no yes
Advantages:
- HF attenuation via power
storage
- suitable for A.C. voltage
- level-independent attenua-
tion
Disadvantages:
- exact dimensioning re-
quired
- high inrush current

Digital Output Modules • 15
Contact Protective Circuit for Relay Modules
WAGO-I/O-SYSTEM 750
I/O Modules

WAGO Kontakttechnik GmbH & Co. KG
Postfach 2880 • D-32385 Minden
Hansastraße 27 • D-32423 Minden
Phone: [phone] – 0
Fax: [phone] – 1 69
E-Mail: [email protected]
Internet: http://www.wago.com