WAGO 750-512 User manual

Fieldbus Independent
I/O Modules
2DO 230V AC 2.0 A/ Relay 2NO
750-512
Manual
Version 1.0.2

ii • General
WAGO-I/O-SYSTEM 750
I/O Modules
Copyright ©2005 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
2.1.1 750-512 [2DO 230V AC 2.0 A/ Relay 2NO]...................................... 7
2.1.1.1 View................................................................................................7
2.1.1.2 Description......................................................................................7
2.1.1.3 Display Elements ............................................................................8
2.1.1.4 Schematic Diagram.........................................................................9
2.1.1.5 Technical Data ..............................................................................10
2.1.1.6 Process Image ............................................................................... 11
2.1.1.7 Load limiting value graph of the relay.......................................... 12
2.1.2 Contact Protective Circuit for Relay Modules .................................. 13

4 • Important Comments
Legal Principles
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. Non-observance will entail the right of
claims for damages.
WAGO Kontakttechnik GmbH reserves the right to perform modifications al-
lowed by technical progress. In case of grant of a patent or legal protection of
utility patents all rights are reserved by WAGO Kontakttechnik GmbH. Prod-
ucts 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 declines all liability resulting 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.
Please direct any requirements pertaining to a modified and/or new hardware
or software configuration directly to WAGO Kontakttechnik GmbH.

Important Comments • 5
Symbols
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 • Important Comments
Safety Notes
WAGO-I/O-SYSTEM 750
I/O Modules
1.4 Safety Notes
Attention
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 750-512
2DO 230V AC 2.0 A/ Relay 2NO 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.

750-512 [2DO 230V AC 2.0 A/ Relay 2NO] • 7
View
WAGO-I/O-SYSTEM 750
I/O Modules
2 I/O Modules
2.1 Digital Output Modules
2.1.1 750-512 [2DO 230V AC 2.0 A/ Relay 2NO]
2-Channel Relay Output Module AC 230 V, DC 30 V 2.0 A,
non-floating, 2 make contacts
2.1.1.1 View
13 14
13 14
C
D
B
A
LL
NN
750-512
Power jumper contacts
Data contacts
Relay 2
Status
Relay 1
Status
DO 2
AC 230 V
DC 30 V
DO 1
N
Fig. 2.1.1-1: 2-Channel Relay Output Module 750-512 g051200e
2.1.1.2 Description
The connected load is switched via the digital output (relay contacts) from the
control system.
The module has two output channels. Two actuators with ground (earth) wire
may be directly connected to signal output DO 1, N and PE (earth potential) or
signal output DO 2, N and PE.
Each module is equipped with one non-floating make contact relay per chan-
nel, i.e. the fieldside voltage supply (230 V AC or 30 V DC) is connected to
each terminal of the relay and is fed in via the internal power jumper contacts
of an adjacent supply module.
By closing a relay, the field power applied is switched to the second relay con-
nection of signal output DO1 or DO2.
The internal system voltage is used to trigger the relays.
The switching status of the two relays is indicated via green status LEDs.

8 • 750-512 [2DO 230V AC 2.0 A/ Relay 2NO]
Display Elements
WAGO-I/O-SYSTEM 750
I/O Modules
Any configuration of the output modules is possible when designing the field-
bus node. Grouping of module types is not necessary.
Attention
An additional supply module must be added for the field supply with AC
230 V / DC 30 V.
The AC 230 V or DC 30 V supply voltage for the field side and the and the 0
V and earth (ground) potential is made automatically through the individual
I/O modules by means of power jumper 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.
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 750-512 can be used with all couplers/controllers of the
WAGO-I/O-SYSTEM 750.
2.1.1.3 Display Elements
LED Channel Designation State Function
off Make contact DO 1 opened
A
green 1 Status
Relays 1 on Make contact DO 1 closed
off Make contact DO 2 opened
13 14
C
D
B
A
C
A
Fig. 2.1.1-2: Display
Elements g050102x
C
green 2 Status
Relays 2 on Make contact DO 2 closed

750-512 [2DO 230V AC 2.0 A/ Relay 2NO] • 9
Schematic Diagram
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.4 Schematic Diagram
DO 2
AC 230 V
DC 30 V
AC 230 V
DC 30 V
DO 1
N
N
0V 0V
DO
Status
1
2
3
4
5
6
7
8
750-512
Fig. 2.1.1-3: 2-Channel Relay Output Module 750-512 g051201e

10 • 750-512 [2DO 230V AC 2.0 A/ Relay 2NO]
Technical Data
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.5 Technical Data
Module Specific Data
Number of outputs 2 make contacts
Current consumption max. (internal) 100 mA
Switching voltage relay AC 250 V/DC 30 V
Switching power relay 500 VA/60 W
cosφmax = 0.4; L/Rmax = 7 ms
Switching current max. AC/DC 2 A
Switching current min. 10 mA at DC 5 V
Switching rate max. 30/min (at nominal load))
Pull-in time max. 10 ms
Bounce time typ. 1.2 ms
Dropout time max. 10 ms
Contact material Silver alloy
Mechanical life max. 2x107switching operatins
Electrical life min. 3x105switching operatins
(AC 2 A/250 V) or (DC 2 A/30V)
Isolation 1.5 kVeff. (System/Field)*
*2.5 kV rated surge voltage
overvoltage category III
Internal bit width 2 Bit out
Dimensions (mm) W x H x L 12 x 64* x 100
* from upper edge of 35 DIN rail
Weight ca. 55 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)
EMC-Immunity to interference
(Ship building)
acc. to Germanischer Lloyd (97)
EMC-Emission of interference
(Ship building)
acc. to Germanischer Lloyd (97)

750-512 [2DO 230V AC 2.0 A/ Relay 2NO] • 11
Process Image
WAGO-I/O-SYSTEM 750
I/O Modules
Approvals (cf. Chapter 2.2 of the Coupler/Controller Manual)
CULUS (UL508)
KEMA II 3 G EEx nA II T4
GL (Germanischer Lloyd) Cat. A, B, C, D
LR (Lloyd's Register) Env. 1, 2, 3, 4
DNV (Det Norske Veritas) Cl. B
RINA (Registro Italiano Navale)
ABS (American Bureau of Shipping)
BV (Bureau Veritas)
Conformity Marking
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.: 0888-0412-0001-0101) or in the
Internet under:
www.wago.com -> Service /Downloads /Documentation
/WAGO-I/O-SYSTEM 750/System Description/.
2.1.1.6 Process Image
The output bits control the state of the outputs.
Output bit B1 B0
Meaning controls DO 2
Channel 2
controls DO 1
Channel 1

12 • 750-512 [2DO 230V AC 2.0 A/ Relay 2NO]
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
0
0,1
0,3
0,5
1
3
5
10
30
50
3 5 10 30 100 250 500 1000
Switching current (A)
Switching voltage (V)
AC, loadresistive
AC, in-
ductive
load
cos =
0,4
j
DC, induc-
tive load
DC, resis-
tive load
Fig. 2.1.1-4: Load limiting value graph of the relay g051202e

Digital Output Modules • 13
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 di-
ode/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 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 required
- high inrush current

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