Wago 787-1668 Users Manual

Manual

EPSITRON®

Electronic Circuit Breaker

787-1668(/xxxx-xxxx)

24 VDC, 8 × 2 … 10 A

Version 1.1.0

2	EPSITRON®
	787-1668 Electronic Circuit Breaker

© 2014 by 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: [e-mail]

Web: http://www.wago.com

Technical Support
Phone:	+49 (0) 571/8 87	– 5 55
Fax:	+49 (0) 571/8 87	– 85 55
E-Mail:	[e-mail]

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: [e-mail]

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.

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EPSITRON®	Table of Contents	3
787-1668 Electronic Circuit Breaker
Table of Contents
Table of Contents...................................................................................................		3
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 Qualifications.......................................................................	9
2.1.3	Use of the 787 Series in Compliance with Underlying Provisions ......	9
2.1.4	Technical Condition of Specified Devices .........................................	10
2.2	Safety Advice (Precautions)....................................................................	11
3	Device Description .....................................................................................	13
3.1	View ........................................................................................................	14
3.2	Connectors...............................................................................................	15
3.2.1	Power supply ......................................................................................	15
3.2.2	Fuse-Protected Outputs ......................................................................	16
3.2.3	Control and Signaling Contacts..........................................................	16
3.3	Display Elements ....................................................................................	17
3.4	Operating Elements.................................................................................	18
3.4.1	Buttons................................................................................................	18
3.4.2	Rotary Switch .....................................................................................	19
3.5	Technical Data ........................................................................................	20
3.5.1	Device Data ........................................................................................	20
3.5.2	Technical Data for "Input" .................................................................	21
3.5.3	Technical Data for "Output"...............................................................	22
3.5.4	Technical Data for "Ambient conditions" ..........................................	23
3.5.5	Technical Data for "Signaling" ..........................................................	23
3.6	Approvals ................................................................................................	24
3.7	Standards and Guidelines........................................................................	25
4	Mounting.....................................................................................................	26
4.1	Mounting.................................................................................................	26
4.2	Mounting the Device on the DIN 35 Rail ...............................................	26
4.3	Removing the Device from the DIN 35 Rail ..........................................	27
5	Connect Devices .........................................................................................	28
5.1	Connection Example ...............................................................................	28
6	Function Description .................................................................................	29
6.1	Undervoltage and Overvoltage Detection...............................................	29
6.2	Trip Curves..............................................................................................	29
6.2.1	Trip Curve for the 10 A Circuit Breaker 787-1668............................	29
6.2.2	Trip Curve for the 6 A Circuit Breaker 787-1668/0106-0000 ...........	30

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		787-1668 Electronic Circuit Breaker

6.2.3Trip Curve for the 6 A Circuit Breaker with Active Current Limitation

787-1668/0006-1000 ..........................................................................

30

6.2.3.1Response of the Electronic Circuit Breaker with Active Current

Limitation ......................................................................................

31

6.2.3.1.1Response 1: Over-current present that is greater than Threshold

3.................................................................................................

32

6.2.3.1.2Response 2: Over-current present that is greater than Threshold

1, but less than Threshold 2 ......................................................

32

6.2.3.1.3Response 3: Over-current present that is greater than the

	nominal current, but less than Threshold 1...............................	32
6.2.3.2	Selective immediate deactivation ..................................................	32
6.3	Activating Capacitive Loads ...................................................................	33
6.3.1	Reference Values for 787-1668 and 787-1668/0106-0000 ................	33
6.3.2	Reference Values for 787-1668/0006-1000 .......................................	33
6.4	Operating Statuses, Signaling, Reactions................................................	34
6.5	ON Delay for Specific Channels.............................................................	36
6.6	Control Input S1......................................................................................	37
6.6.1	Re-activating Tripped Channels.........................................................	37

6.6.2Specific Activation and De-activation of Non-Tripped Output

	Channels .............................................................................................	38
6.7	Signal Output S2 .....................................................................................	42

6.8Functioning of Communication between Control Input S1 and Signal

	Output S2 ................................................................................................	44
6.9	Signal Output S3 .....................................................................................	45
List of Figures ......................................................................................................		46
List of Tables........................................................................................................		47

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EPSITRON®	Notes about this Documentation	5
787-1668 Electronic Circuit Breaker

1 Notes about this Documentation

Keep this documentation!

The operating instructions are part of the product and shall be kept for the entire lifetime of the device. They shall be transferred to each subsequent owner or user of the device. Care must also be taken to ensure that any supplement to these instructions are included, if applicable.

1.1Validity of this Documentation

This documentation applies to the electronic circuit breaker 787-1668 and the versions listed in the following table.

Table 1: Versions

	Item No./Version		Description
787-1668/0106-0000			Electronic Circuit Breaker
			24 V DC, 8×6 A
787-1668/0006-1000			Electronic Circuit Breaker
			24 V DC, 8×6 A,
			with Active Current Limitation

1.2Copyright

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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1.3Symbols

Personal Injury!

Indicates a high-risk, imminently hazardous situation which, if not avoided, will result in death or serious injury.

Personal Injury Caused by Electric Current!

Indicates a high-risk, imminently hazardous situation which, if not avoided, will result in death or serious injury.

Personal Injury!

Indicates a moderate-risk, potentially hazardous situation which, if not avoided, could result in death or serious injury.

Personal Injury!

Indicates a low-risk, potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

Damage to Property!

Indicates a potentially hazardous situation which, if not avoided, may result in damage to property.

Damage to Property Caused by Electrostatic Discharge (ESD)!

Indicates a potentially hazardous situation which, if not avoided, may result in damage to property.

Important Note!

Indicates a potential malfunction which, if not avoided, however, will not result in damage to property.

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787-1668 Electronic Circuit Breaker

Additional Information:

Refers to additional information which is not an integral part of this documentation (e.g., the Internet).

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1.4Number Notation

Table 2: Number notation

	Number code	Example	Note
	Decimal	100	Normal notation
	Hexadecimal	0x64	C notation
	Binary	'100'	In quotation marks, nibble separated with
		'0110.0100'	dots (.)

1.5Font Conventions

Table 3: Font conventions

	Font type		Indicates
	italic		Names of paths and data files are marked in italic-type.
			e.g.: C:\Programme\WAGO-I/O-CHECK
	Menu		Menu items are marked in bold letters.
			e.g.: Save
>			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]
	[Key]		Keys are marked with bold letters in square brackets.
			e.g.: [F5]

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EPSITRON®	Important Notes	9
787-1668 Electronic Circuit Breaker

2 Important Notes

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.

2.1Legal Bases

2.1.1Subject to Changes

WAGO Kontakttechnik GmbH & Co. KG reserves the right to provide for any alterations or modifications that serve to increase the efficiency of technical progress. 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.

2.1.2Personnel Qualifications

All sequences implemented on 787 Series devices may only be carried out by electrical specialists with sufficient knowledge in automation. The specialists must be familiar with the current norms and guidelines for the devices and automated environments.

2.1.3Use of the 787 Series in Compliance with Underlying Provisions

The EPSITRON® 787 Series power supply system provides direct current 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 and 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 nuclear facilities, as any malfunction in these applications could result in severe injuries or risk of death.

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2.1.4Technical Condition of Specified Devices

The components to be supplied Ex Works, are equipped with hardware and software configurations, which meet the individual application requirements. WAGO Kontakttechnik GmbH & Co. KG will be exempted from any liability in case of changes in hardware or software as well as to non-compliant usage of components.

Please send your request for modified and new hardware or software configurations directly to WAGO Kontakttechnik GmbH & Co. KG.

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EPSITRON®	Important Notes 11
787-1668 Electronic Circuit Breaker

2.2Safety Advice (Precautions)

For installing and operating purposes of the relevant device to your system the following safety precautions shall be observed:

Do not work on components while energized!

All power sources to the device shall be switched off prior to performing any installation, repair or maintenance work.

Installation only in appropriate housings, cabinets or in electrical operation rooms!

Always install devices of the 787 Series in enclosures, cabinets or electrical equipment rooms which can be closed and locked. Ensure that access to this equipment/these rooms is possible only by authorized specialists with the appropriate key or tools.

Do not use these devices in control systems for planes, trains or nuclear facilities!

Never use these devices in control systems for planes, trains or nuclear facilities, as any malfunction in these applications can result in severe injuries or risk of death!

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.

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!

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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12 Important Notes		EPSITRON®
		787-1668 Electronic Circuit Breaker

Attach the free ends of the conductors using a strain relief device!

Provide appropriate strain relief means to attach and cap any free ends of the conductors. Female connectors can be pulled out of the male connectors by high vibration levels or shock impacts.

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.

Cleaning only with permitted materials!

Clean soiled contacts using oil-free compressed air or with ethyl alcohol and leather cloths.

Do not use any contact spray!

Do not use any contact spray. The spray may impair contact area functionality in connection with contamination.

Do not reverse the polarity of connection lines!

Avoid reverse polarity of data and power supply lines, as this may damage the devices involved.

Avoid electrostatic discharge!

The devices are equipped with electronic components that you may destroy by electrostatic discharge when you touch. Pay attention while handling the devices to good grounding of the environment (persons, job and packing).

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EPSITRON®	Device Description 13
787-1668 Electronic Circuit Breaker

3 Device Description

The 787-1668 electronic circuit breaker reliably protects up to 8 load circuits against short circuiting and overloading. The 24 VDC input voltage is distributed among 8 output channels, each of which can be provided with separate fuse protection.

Table 4: Fuse Protection of Output Channels

Variant		Fuse protection for each output
		channel (can be set)
787-1668		2 A, 3 A, 4 A, 6 A, 8	A, 10 A
787-1668/0106-0000		1 A, 2 A, 3 A, 4 A, 5	A, 6	A
787-1668/0006-1000		0,5 A, 1 A, 2 A, 3 A, 4 A,		6 A
		(with active current limitation)

The electronics can accommodate brief current peaks.

There are 8 rotary switches on the device which can be used to set the nominal current for each of the individual output channels.

The current status of the output channel is indicated by a multi-colored LED.

In the event of a short circuit or overloading, the individual output channel is deenergized after a defined trip time.

Wait for temperature to return to normal!

If an output channel has been de-activated due to short-circuiting or overloading, wait until the temperature returns to its normal range (cooling period) before reactivating the channel.

The device contains control and signaling contacts, which can be used for reading out information relevant to operation. These contacts are also used to activate and de-activate specific output channels individually. This device is equipped with

•one digital control input and

•two digital signal outputs.

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14 Device Description	EPSITRON®
	787-1668 Electronic Circuit Breaker

3.1View

Figure 1: View of device

Table 5: Key for "Device view" figure

	No.	Designation	Reference
	1	Switch	"Device Description" >
			"Operating Elements" > "Buttons"
	2	Rotary switch	"Device Description" > "Operating
			Elements" > "Rotary Switches"
	3	Cover, sealable *)
	4	CAGE CLAMP® connections	"Function Description" >
		Control input S1 and	"Control Input S1"/
		Signaling outputs S2 and S3	"Signaling Output S2"/
			"Signaling Output S3"
	5	Marking field **)
	6	CAGE CLAMP® connections	"Device Description" >
		for fuse-protected output channels	"Connections" >
			"Fuse-Protected Output Channels"
	7	CAGE CLAMP® connections
		for 0 V reference potential	"Device Description" >
		(for internal supply only)
			"Connections" > "Power Supply"
	8	CAGE CLAMP® connections
		for 24 V input voltage
	*) can	also be marked using TOPJOB®S marker strips	(Item No. 2009-110)
	**) can be marked using TOPJOB®S marker strips (Item No. 2009-110) or
	WMB Multi marking system
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787-1668 Electronic Circuit Breaker

3.2Connectors

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!

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.

Attach the free ends of the conductors using a strain relief device!

Provide appropriate strain relief means to attach and cap any free ends of the conductors. Female connectors can be pulled out of the male connectors by high vibration levels or shock impacts.

3.2.1	Power supply
	Table 6: Power supply connections
		No.		Designation		Function
		1	+			24 V input voltage
		2	+			24 V input voltage
	Figure 2: 24 V input
	Table 7: Power supply connections
		No.		Designation		Function
		1	-			Reference potential 0 V
		2	-			Reference potential 0 V
	Figure 3: 0 V input

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