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Manual
Compact Power
787-1211
DC power supply, 12 V
Version 1.1.0
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2 Compact Power
787-1211 DC power supply, 12 V
Manual
Version 1.1.0
© 2020 WAGO Kontakttechnik GmbH & Co. KG
All rights reserved.
WAGO Kontakttechnik GmbH & Co. KG
Hansastraße 27
D-32423 Minden
Phone: +49 (0) 571/8 87 – 0
Fax: +49 (0) 571/8 87 – 1 69
E-Mail: info@wago.com
Web: www.wago.com
Technical Support
Phone: +49 (0) 571/8 87 – 4 45 55
Fax: +49 (0) 571/8 87 – 84 45 55
E-Mail: support@wago.com
Every conceivable measure has been taken to ensure the accuracy and
completeness of this documentation. However, as errors can never be fully
excluded, we always appreciate any information or suggestions for improving the
documentation.
E-Mail: documentation@wago.com
We wish to point out that the software and hardware terms as well as the
trademarks of companies used and/or mentioned in the present manual are
generally protected by trademark or patent.
WAGO is a registered trademark of WAGO Verwaltungsgesellschaft mbH.
=== Ende der Liste für Textmarke Einband_vorne ===
Compact Power Table of Contents 3
787-1211 DC power supply, 12 V
Manual
Version 1.1.0
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Table of Contents
1 Notes about this Documentation ............................................................5
1.1 Validity of this Documentation ...............................................................5
1.2 Copyright..............................................................................................5
1.3 Symbols ...............................................................................................6
1.4 Number Notation ..................................................................................8
1.5 Font Conventions .................................................................................8
2 Important Notes.......................................................................................9
2.1 Legal Bases .........................................................................................9
2.1.1 Subject to Changes ..........................................................................9
2.1.2 Personnel Qualification.....................................................................9
2.1.3 Use of the 787 Series in Compliance with Underlying Provisions .......9
2.1.4 Technical State of the Devices .......................................................10
2.2 Safety Advice (Precautions) ................................................................11
2.2.1 Special Notes for Use in Accordance to EN 60335-1 .......................13
2.2.2 Special Notes on Use as a DIN-Rail Built-in Installation Device .......14
3 Device Description ................................................................................15
3.1 View ...................................................................................................16
3.2 Type Plate ..........................................................................................17
3.3 Connectors .........................................................................................18
3.3.1 Connectors ....................................................................................18
3.3.1.1 Connector Input Side .................................................................19
3.3.1.2 Connector Output Side ..............................................................19
3.4 Display Elements ................................................................................20
3.5 Operating Elements ............................................................................21
3.5.1 Potentiometer ................................................................................21
3.6 Technical Data ...................................................................................22
3.6.1 Device Data ...................................................................................22
3.6.2 Input ..............................................................................................24
3.6.3 Output............................................................................................25
3.6.4 Efficiency/Power Loss ....................................................................28
3.6.5 MTBF/Lifespan...............................................................................29
3.6.6 Environmental Conditions...............................................................30
3.6.7 Equipment Protection .....................................................................32
3.6.8 Safety ............................................................................................33
3.7 Approvals ...........................................................................................34
3.8 Standards and Guidelines ...................................................................35
3.9 Other Information on Standards and Directives ...................................37
4 Mounting ...............................................................................................38
4.1 Mounting Positions .............................................................................38
4.2 DIN 35 Rail .........................................................................................39
4.2.1 DIN-Rail Mounting ..........................................................................39
4.2.2 Removal from DIN-Rail...................................................................40
4.3 Screw Mounting..................................................................................41
5 Connect Devices ................................................................
...................42
4 Table of Contents Compact Power
787-1211 DC power supply, 12 V
Manual
Version 1.1.0
5.1 Connectors .........................................................................................42
5.1.1 Connecting Conductors ..................................................................43
5.1.1.1 Connecting Using a Tool............................................................43
5.1.1.2 Directly Inserting Conductors .....................................................43
5.1.2 WAGO picoMAX
®
Connectors ........................................................43
5.1.2.1 Status at delivery .......................................................................44
5.1.2.2 Removing the Female Connector ...............................................44
5.1.2.2.1 Removing the Female Connector without Wiring ....................44
5.1.2.2.2 Removing the Female Connector with Wiring .........................45
5.1.2.3 Plugging in the Female Connector .............................................46
6 Notes on Operation ...............................................................................47
6.1 Inrush Current ....................................................................................47
6.2 Parallel connection (output side) .........................................................48
6.3 Short-Circuit and Overload Behavior ...................................................49
6.4 Derating .............................................................................................50
6.5 Maintenance.......................................................................................51
6.6 Disposal .............................................................................................52
6.6.1 Electrical and Electronic Equipment ................................................52
6.6.2 Packaging ......................................................................................52
7 Accessories...........................................................................................54
7.1 Tools ..................................................................................................54
7.2 Spare Parts for Wiring.........................................................................54
7.3 Miscellaneous Accessories .................................................................54
List of Figure s ................................................................................................55
List of Table s .................................................................................................56
=== Ende der Liste für Textmarke Verzeichnis_vorne ===
Compact Power Notes about this Documentation 5
787-1211 DC power supply, 12 V
Manual
Version 1.1.0
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1 Notes about this Documentation
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Always retain this documentation!
This documentation is part of the product. Therefore, retain the documentation
during the entire service life of the product. Pass on the documentation to any
subsequent user. In addition, ensure that any supplement to this documentation
is included, if necessary.
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1.1 Validity of this Documentation
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This documentation applies to the 787-1211 power supply.
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1.2 Copyright
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This Manual, including all figures and illustrations, is copyright-protected. Any
further use of this Manual by third parties that violate pertinent copyright
provisions is prohibited. Reproduction, translation, electronic and phototechnical
filing/archiving (e.g., photocopying) as well as any amendments require the
written consent of WAGO Kontakttechnik GmbH & Co. KG, Minden, Germany.
Non-observance will involve the right to assert damage claims.
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6 Notes about this Documentation Compact Power
787-1211 DC power supply, 12 V
Manual
Version 1.1.0
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1.3 Symbols
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Personal Injury!
Indicates a high-risk, imminently hazardous situation which, if not avoided, will
result in death or serious injury.
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Personal Injury Caused by Electric Current!
Indicates a high-risk, imminently hazardous situation which, if not avoided, will
result in death or serious injury.
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Personal Injury!
Indicates a moderate-risk, potentially hazardous situation which, if not avoided,
could result in death or serious injury.
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Personal Injury!
Indicates a low-risk, potentially hazardous situation which, if not avoided, may
result in minor or moderate injury.
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Damage to Property!
Indicates a potentially hazardous situation which, if not avoided, may result in
damage to property.
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Damage to Property Caused by Electrostatic Discharge (ESD)!
Indicates a potentially hazardous situation which, if not avoided, may result in
damage to property.
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Important Note!
Indicates a potential malfunction which, if not avoided, however, will not result in
damage to property.
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Compact Power Notes about this Documentation 7
787-1211 DC power supply, 12 V
Manual
Version 1.1.0
Additional Information:
Refers to additional information which is not an integral part of this
documentation (e.g., the Internet).
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8 Notes about this Documentation Compact Power
787-1211 DC power supply, 12 V
Manual
Version 1.1.0
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1.4 Number Notation
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Table 1: Number Notation
Number Code
Example
Note
Decimal
100
Normal notation
Hexadecimal
0x64
C notation
Binary
'100'
'0110.0100'
In quotation marks, nibble separated
with dots (.)
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1.5 Font Conventions
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Table 2: Font Conventions
Font Type
Indicates
italic
Names of paths and data files are marked in italic-type.
e.g.: C:\Program Files\WAGO Software
Menu
Menu items are marked in bold letters.
e.g.:
Sav e
>
A greater-than sign between two names means the selection of a
menu item from a menu.
e.g.:
File
>
New
Input
Designation of input or optional fields are marked in bold letters,
e.g.:
Start of measurement range
“Value”
Input or selective values are marked in inverted commas.
e.g.: Enter the value “4 mA” under
Start of measurement range
.
[Button]
Pushbuttons in dialog boxes are marked with bold letters in square
brackets.
e.g.: [Input]
[Ke y]
Keys are marked with bold letters in square brackets.
e.g.:
[F5]
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Compact Power Important Notes 9
787-1211 DC power supply, 12 V
Manual
Version 1.1.0
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2 Important Notes
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This section includes an overall summary of the most important safety
requirements and notes that are mentioned in each individual section. To protect
your health and prevent damage to devices as well, it is imperative to read and
carefully follow the safety guidelines.
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2.1 Legal Bases
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2.1.1 Subject to Changes
WAGO Kontakttechnik GmbH & Co. KG reserves the right to provide for any
alterations or modifications. WAGO Kontakttechnik GmbH & Co. KG owns all
rights arising from the granting of patents or from the legal protection of utility
patents. Third-party products are always mentioned without any reference to
patent rights. Thus, the existence of such rights cannot be excluded.
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2.1.2 Personnel Qualification
All tasks performed on the 787 Series devices must only be completed by
qualified electrical specialists according to EN 50110-1/-2 and IEC 60364.
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2.1.3 Use of the 787 Series in Compliance with Underlying
Provisions
The 787 Series power supply system provides DC voltage to electric or electronic
devices, such as industrial control systems or display, communication and
measuring devices.
The devices have been developed for use in an environment that meets the IP20
protection class criteria. Protection against finger injury and solid impurities up to
12.5 mm diameter is assured; protection against water damage is not ensured.
Unless otherwise specified, operation of the components in wet or dusty
environments is prohibited.
The devices are designed for installation in an enclosure. Under no
circumstances may they be used in control systems for planes or in nuclear
facilities, as any malfunction in these applications could result in severe injuries
or risk of death.
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10 Important Notes Compact Power
787-1211 DC power supply, 12 V
Manual
Version 1.1.0
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2.1.4 Technical State of the Devices
Devices are supplied from the factory with a dedicated hardware configuration.
All other changes to the hardware and the non-compliant use of the components
entail the exclusion of liability on part of WAGO Kontakttechnik GmbH & Co. KG.
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Compact Power Important Notes 11
787-1211 DC power supply, 12 V
Manual
Version 1.1.0
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2.2 Safety Advice (Precautions)
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For installing and operating purposes of the relevant device to your system the
following safety precautions shall be observed:
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Do not work when devices are energized!
High voltage can cause electric shock or burns.
Switch off all power to the device prior to performing any installation, repair or
maintenance work.
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Live parts are likely to be touched!
The party setting up the device is responsible for providing appropriate touch
guards. The installation regulations must be observed for each individual
application.
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Only install this device in closed electrical service locations!
Only install this device in closed electrical areas per EN 50178!
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Ensure a standard connection!
To minimize any hazardous situations resulting in personal injury or to avoid
failures in your system, the data and power supply lines shall be installed
according to standards, with careful attention given to ensuring the correct
terminal assignment. Always adhere to the EMC directives applicable to your
application.
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Do not touch hot surfaces!
The surface of the housing can become hot during operation. If the device was
operated at high ambient temperatures, allow it to cool off before touching it.
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Only for electrical specialists!
The device described must only be installed by qualified electrical specialists acc.
to EN 50110-1/-2 and IEC 60364.
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12 Important Notes Compact Power
787-1211 DC power supply, 12 V
Manual
Version 1.1.0
Switch off power supply to defective device!
Switch off power supply to the device immediately if the device malfunctions or is
damaged! Control systems connected to the device may also be damaged!
Return the defective device directly to WAGO.
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Replace defective or damaged devices!
Replace defective or damaged device/module (e.g., in the event of deformed
contacts).
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Protect the components against materials having seeping and insulating
properties!
The components are not resistant to materials having seeping and insulating
properties such as: aerosols, silicones and triglycerides (found in some hand
creams). If you cannot exclude that such materials will appear in the component
environment, then install the components in an enclosure being resistant to the
above-mentioned materials. Clean tools and materials are imperative for
handling devices/modules.
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Clean only with permitted materials!
Clean housing and soiled contacts with propanol.
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Do not use any contact spray!
Do not use any contact spray. The spray may impair contact area functionality in
connection with contamination.
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Do not reverse the polarity of connection lines!
Avoid reverse polarity of data and power supply lines, as this may damage the
devices involved.
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Follow the installation instructions!
Only install this device in dry, indoor rooms.
Do not install the device on or in the vicinity of easily flammable materials!
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Compact Power Important Notes 13
787-1211 DC power supply, 12 V
Manual
Version 1.1.0
Observe the applicable regulations!
Observe applicable laws, standards and regulations.
Observe the current, accepted technology standards and practices at the time of
installation.
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Observe for long-term storage!
For long-term storage, power must be applied to equipment with built-in
capacitors at least every two years for five minutes.
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Follow the instructions!
Incorrect installation may compromise safety in the event of a failure. Before
installation and operation, please read these instructions thoroughly and
carefully.
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This product may only be used as described in this note and in the complete
instructions. Use other than this may represent a risk to safe, intended use and
will nullify the warranty or guarantee. WAGO Kontakttechnik GmbH & Co. KG is
not liable for damage resulting from non-intended or improper use.
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2.2.1 Special Notes for Use in Accordance to EN 60335-1
The following additional information must be observed when using the device in
accordance to EN 60335-1:
• Ensure that the space required by the device is provided (see section
“Device Description” > “Technical Data”).
• Observe the minimum distances between the device and adjacent
components (see section “Device Description” > “Technical Data”).
• Observe the positions for the different fastening options (see section
“Mounting”).
• Keep the ventilation openings free.
• Install the device so that subsequent isolation of the device from the mains
supply is possible (e.g., by installing a mains isolator in accordance with the
relevant installation requirements).
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14 Important Notes Compact Power
787-1211 DC power supply, 12 V
Manual
Version 1.1.0
2.2.2 Special Notes on Use as a DIN-Rail Built-in Installation
Device
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The following additional information must be observed when using the device as
a DIN-rail built-in installation device (domestic installation):
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Ensure contact protection when used as a DIN-rail built-in installation
device!
When used as a DIN-rail built-in installation device according to DIN 43880
(domestic installation), the electrical installer must provide appropriate contact
protection.
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Compact Power Device Description 15
787-1211 DC power supply, 12 V
Manual
Version 1.1.0
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3 Device Description
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The Compact Power Series are compact switched-mode power supply units with
a wide range of uses. Their stepped design makes them suitable for applications,
such as for use as a DIN-rail built-in installation device in accordance with
DIN 43880, and this is also supported by conformity with EN 60335-1.
The power supply units can be fitted on a DIN-rail. Screw mounting using the
fastening clips supplied with the device is also a possible alternative. In this way,
devices can be fitted both in the control cabinet as well as in a distribution box or
screwed onto the housing of an automation device.
The devices employ pluggable WAGO picoMAX
®
connectors, enabling them to
be pre-wired for quicker installation and faster device replacement.
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An LED indicates the status of the output voltage (see section “Display
Elements”).
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16 Device Description Compact Power
787-1211 DC power supply, 12 V
Manual
Version 1.1.0
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3.1 View
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Figure 1: View
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Table 3: Legend for Figure “View ”
Pos.
De scription
Details see section
a
Screw mount clip
“Mounting” > “Screw Mounting”
b
Input picoMAX
®
5.0 (L N PE)
“Device Description” > “Connections”
c
Output picoMAX
®
5.0 (+ + − −)
“Device Description” > “Connections”
d
Ventilation slots
---
e
Potentiometer for setting the
output voltage
“Device Description” > “Operating
Elements”
f
LED indicator
“Device Description” > “Display
Elements”
g
Front panel (removable)
“Notes on Operation” > “Front Panel”
h
Type plate
“Device Description” > “Type Plate”
i
Mount/removal latch on a DIN-rail
“Mounting” > “DIN-Rail”
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Compact Power Device Description 17
787-1211 DC power supply, 12 V
Manual
Version 1.1.0
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3.2 Type Plate
Die G eräte
The device type plate 787-1211 is located on the side of the housing:
They contain the following information:
Figure 2: Information on the Type Plate
Table 4: Legend for Figure “Information on the Type Plate”
Pos.
De scription
Details see section
1
Company logo and address
---
2
Device name
---
3
Item number
---
4
Input and output data
“Device Description” > “Technical Data”
5
Surrounding air temperature
“Device Description” > “Technical Data”
6
Derating information
“Notes on Operation” > “Derating”
7
Field for the approvals
“Device Description” > “Approvals”
8
Serial number
---
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18 Device Description Compact Power
787-1211 DC power supply, 12 V
Manual
Version 1.1.0
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3.3 Connectors
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Do not work on devices while energized!
All power sources to the device shall be switched off prior to performing any
installation, repair or maintenance work.
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Do not plug in or disconnect the female connector while a load is applied!
Only plug in or disconnect the female connectors when the device is not live!
Failure to observe this can result in damage to the contacts due to arcing!
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Plug the female connectors all the way into the male connectors!
Always plug the female connectors all the way in to the male connectors. This
ensures proper contact at all times.
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Attach the free ends of the conductors using a strain relief device!
Female connectors can be pulled out of the male connectors by high vibration
levels or shock impacts!
Provide appropriate strain relief means to attach and cap any free ends of the
conductors!
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3.3.1 Connectors
The supply lines are connected on the input and output side using the 2092
Series WAGO picoMAX
®
pluggable connectors:
• Input side: picoMAX
®
5.0
• Output side: picoMAX
®
5.0
Observe the maximum admissible conductor cross sections for the signal and
power cables (see section “Device Description” > “Technical Data”).
Check the appropriate operating voltage before connecting equipment (see type
plate).
Additional information on the connection technology is provided in the section
“Connecting Devices.”
Compact Power Device Description 19
787-1211 DC power supply, 12 V
Manual
Version 1.1.0
3.3.1.1 Connector Input Side
Figure 3: Connectors on the Input Side
Table 5: Legend for Figure “Connectors on the Input Side”
Pos.
De scription
1
Connector “L” for input voltage
2
Connector “N” for input voltage
3
Connector “PE” for input voltage
4
Integrated push-button
5
Test hole
3.3.1.2 Connector Output Side
Figure 4: Connectors on the Output Side
Table 6: Legend for Figure “Connectors on the Output Side”
Pos.
De scription
1
Connector 1 “+” for output voltage
2
Connector 2 “+” for output voltage
3
Connector 1 “−” for output voltage
4
Connector 2 “−” for output voltage
5
Integrated push-button
6
Test hole
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20 Device Description Compact Power
787-1211 DC power supply, 12 V
Manual
Version 1.1.0
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3.4 Display Elements
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The indicating elements are located on the front of the device.
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The “DC OK” LED indicates the status of output voltage UOUT.
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Figure 5: LED “DC OK”
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Table 7: Legend for Figure “LED ‚DC OK‘”
LED
Color
Status
Explanation
DC OK
Green
ON
Switch-on threshold;
Output voltage > 9 VDC
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