ABB BT50 User manual
ABB Jokab Safety Varlabergsvägen 11, SE-434 39, Sweden
www.abb.com/jokabsafety
Safety Manual
BT50(T)
Safety relay / Expansion relay
2TLC172316M0201, rev E 2 www.abb.com/ jokabsafety
2015-09-30
Read and understand this document
Please read and understand this document before using the products. Please consult your ABB JOKAB SAFETY
representative if you have any questions or comments.
WARRANTY
ABB JOKAB SAFETY’s exclusive warranty is that the products are free from defects in materials and workmanship
for a period of one year (or other period if specified) from date of sale by ABB JOKAB SAFETY.
ABB JOKAB SAFETY MAKES NO WARRANTY OR REPRESENTATION, EXPRESSED OR IMPLIED,
REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF
THE PRODUCTS, ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS
DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OR THEIR INTENDED
USE. ABB JOKAB SAFETY DISCLAIMS ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED.
LIMITATIONS OF LIABILITY
ABB JOKAB SAFETY SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL
DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS,
WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY.
In no event shall responsibility of ABB JOKAB SAFETY for any act exceed the individual price of the product on
which liability asserted.
IN NO EVENT SHALL ABB JOKAB SAFETY BE HELD RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER
CLAIMS REGARDING THE PRODUCTS UNLESS ABB JOKAB SAFETY’S ANALYSIS CONFIRMS THAT THE
PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO
ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
SUITABILITY FOR USE
ABB JOKAB SAFETY shall not be responsible for conformity with any standards, codes, or regulations that apply
to the combination of products in the customer’s application or use of the product. At the customer’s request,
ABB JOKAB SAFETY will provide applicable third party certification documents identifying ratings and limitations of
use that apply to the products. This information by itself is not sufficient for a complete determination of the
suitability of the products in combination with the end product, machine, system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not intended
to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses listed may be
suitable for the products:
Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not
described in this document.
Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment,
amusement machines, vehicles, and installations subject to separate industry or government regulations.
Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY
WITHOUT ENSURING THAT THE SYSTEM AS AWHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS,
AND THAT THE ABB JOKAB SAFETY PRODUCT IS PROPERLY RATED AND INSTALLED FOR THE
INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
PERFORMANCE DATA
While every effort has been taken to ensure the accuracy of the information contained in this manual
ABB JOKAB SAFETY cannot accept responsibility for errors or omissions and reserves the right to make changes
and improvements without notice. Performance data given in this document is provided as a guide for the user in
determining suitability and does not constitute a warranty. It may represent the result of ABB JOKAB SAFETY’S
test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to
the ABB JOKAB SAFETY Warranty and Limitations of Liability.
2TLC172316M0201, rev E 3 www.abb.com/ jokabsafety
2015-09-30
Table of Contents
1Introduction ......................................................................................................................................... 4
Manufacturer information................................................................................................................................... 4
Scope................................................................................................................................................................ 4
Prerequisites...................................................................................................................................................... 4
Special notes..................................................................................................................................................... 4
2Overview..............................................................................................................................................5
General description............................................................................................................................................ 5
Safety regulations.............................................................................................................................................. 5
3Function description........................................................................................................................... 6
Safety level........................................................................................................................................................ 6
Internal block diagram........................................................................................................................................ 6
BT50T – Information output................................................................................................................................ 6
BT50T – Delay times.......................................................................................................................................... 6
4Connections ........................................................................................................................................ 7
Electrical connection.......................................................................................................................................... 7
5Connection examples ......................................................................................................................... 8
6Installation ........................................................................................................................................... 9
Terminals........................................................................................................................................................... 9
7Operation........................................................................................................................................... 10
8Functional safety............................................................................................................................... 11
Used Directives and standards......................................................................................................................... 11
Maintenance.................................................................................................................................................... 11
Certificate........................................................................................................................................................ 11
9System Structure............................................................................................................................... 12
Assumptions.................................................................................................................................................... 12
Safety Function and Safe State........................................................................................................................ 12
10 Functional Safety Data...................................................................................................................... 13
Functional Safety Data BT50(T)....................................................................................................................... 13
11 Useful life time................................................................................................................................... 14
Installation and commissioning......................................................................................................................... 14
Proof Test procedure....................................................................................................................................... 14
12 Technical data ................................................................................................................................... 15
Model overview................................................................................................................................................ 16
Dimensions...................................................................................................................................................... 16
2TLC172316M0201, rev E 4 www.abb.com/ jokabsafety
2015-09-30
1 Introduction
Manufacturer information
ABB JOKAB SAFETY
Varlabergsvägen 11
SE-434 39 Kungsbacka
Sweden
Scope
The purpose of these instructions is to describe how to use the safety relay BT50(T) in control circuits that are
related to functional safety.
Prerequisites
It is assumed that the reader of this document has knowledge of the following:
·Basic knowledge of ABB Jokab Safety products.
·Knowledge of safety devices and process locks.
·Knowledge of machine safety.
Special notes
Pay attention to the following special notes in the document:
Warning! Danger of severe personal injury!
An instruction or procedure which, if not carried out correctly, may result in injury to the technician
or other personnel.
Caution! Danger of damage to the equipment!
An instruction or procedure which, if not carried out correctly, may damage the equipment.
NB: Notes are used to provide important or explanatory information.
2TLC172316M0201, rev E 5 www.abb.com/ jokabsafety
2015-09-30
2 Overview
General description
This manual contains information on using the safety relay in control circuits that are related to functional safety.
The BT50(T) is designed to connect safety devices, such as emergency stops, directly in the voltage supply circuit
to the relay. This relay can be used to expand the safety outputs of Pluto.
The relay has three NO safety outputs, one NC output (for monitoring purposes), a test input and complete internal
supervision.
In order for the safety outputs to close, the supply voltage, e. g. by means of an emergency stop button, must be
connected to A1 and A2 and the test input closed. After actuation of the relay the test input can be opened again.
The test input is intended to supervise that contactors or valves have deactivated before a new start can be
permitted. The test input can also be used for starting and the start button can be supervised. (See the connection
examples in section 4.)
Safety regulations
Warning! Carefully read through this entire manual before using the device.
The devices shall be installed by a trained electrician following the Safety regulations, standards
and the Machine directive.
Failure to comply with instructions, operation that is not in accordance with the use prescribed in
these instructions, improper installation or handling of the device can affect the safety of people
and the plant.
For installation and prescribed use of the product, the special notes in the instructions must be
carefully observed and the technical standards relevant to the application must be considered.
In case of failure to comply with the instructions or standards, especially when tampering with
and/or modifying the product, any liability is excluded.
2TLC172316M0201, rev E 6 www.abb.com/ jokabsafety
2015-09-30
3 Function description
Safety level
The BT50(T) has a double and supervised internal safety function. Power failure, internal component faults or
external interference cannot result in dangerous functions.
Input via A1 on its own is not protected from short circuiting, and therefore installation is critical for the safety level
to be achieved. To achieve a higher safety level a cable shielded with earth connection can be used at both A1 and
A2 (See the connection examples in section 4.) The higher safety level is achieved by fault exclusion at the cables
to the A1 and A2 connections, through shielded cables with earth connection or cables protected against damage,
e.g. by cable ducting, armouring. The cables connected between connections X4 and A1 need the same protection
if installed outside the cabinet. For further information see Table D4 IEC 13849-2:2012.
Steering input only via A2 is only allowed with the failsafe transistor outputs from Pluto PLC.
Internal block diagram
When supply voltage is connected to A1, A2 and X4, relays K1 and K2 are activated. K1 and K2 drop if the supply
voltage is disconnected. Both relays K1 and K2 must drop for them to be activated again. The test circuit, A1 – X4,
must be closed for the outputs to be activated.. Thereafter A1 – X4 can either be open or constantly closed.
The supervising circuit ensures that both K1 and K2 have dropped before they can be reactivated. The stop
function complies with the requirement that a component fault or external interference cannot lead to a dangerous
function.
The safety outputs consist of contacts from K1 and K2 connected internally in series across terminals 13 – 14, 23 –
24, and 33 – 34. These contacts are used to cut the power to components which stop or prevent hazardous
movements/functions. It is recommended that all switched loads are adequately suppressed and fused in order to
provide additional protection for the safety contacts.
The NC output 41 – 42 should only be used for monitoring purposes e. g. indication lamp for emergency stop
pressed. The BT50T is the same as BT50 except that it also has delay time selectable outputs and additional
information output relay. This is explained in the following connection diagrams.
BT50T – Information output
BT50T – Delay times
2TLC172316M0201, rev E 7 www.abb.com/ jokabsafety
2015-09-30
4 Connections
Electrical connection
The inputs from the safety devices must be connected according to one of the following examples in order to fulfil
the expected safety level and to avoid unsafe situations.
Emergency stop with reset when
emergency button returns. Emergency stop with dual
connection direct to the supply
voltage.
Monitoring to ensure that the
On button is not stuck in pressed
position. A short circuit over the
closing contact is not monitored.
Controlled monitoring of external
contactor, relay, valve or Jokab
Safety’s expansion relays.
BT50(T) as emergency stop and
control relay with Start and Stop
function.
Hatch with automatic reset.
* BT50 has additional power terminals A1 and A2.
2TLC172316M0201, rev E 8 www.abb.com/ jokabsafety
2015-09-30
5 Connection examples
NB: More connection examples can be found at www.abb.com/ jokabsafety or in the Safety Handbook.
2TLC172316M0201, rev E 9 www.abb.com/ jokabsafety
2015-09-30
6 Installation
Attach the BT50(T) on a 35mm DIN rail and use the information in section 4 ‘Connections’ in this manual to
connect power supply and safety devices for your need.
Terminals
The connection block is detachable without cables having to be disconnected.
Maximum screw torque: 1 Nm
Maximum connection area:
Solid: 1 x 4 mm2/ 2 x 1.5 mm2
Stranded ferruled: 1 x 2.5 mm2/ 2 x 1.5 mm2
Air and creep distance 4 kV/2 IEC 60664-1
Caution! The main voltage for the system should be switched off before installation, modifications or other
adjustments that can risk the safety of the system.
NB: The picture does not show the actual product.
2TLC172316M0201, rev E 10 www.abb.com/ jokabsafety
2015-09-30
7 Operation
LED indication
On LED is on when Supply voltage is OK.
Out LED is on when the safety outputs are activated.
X4 Led is on when auto-reset condition is fulfilled.
This manual suits for next models
1
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