Leuze electronic MSI-TB Series User manual

SAFE IMPLEMENTATIONAND OPERATION
Original operating instructions
EN 2014/02 - 50124409
We reserve the right to make technical changes

Leuze electronic MSI-TB 2
© 2014
Leuze electronic GmbH + Co. KG
In der Braike 1
D-73277 Owen / Germany
Phone: [phone]
Fax: [phone]
http://www.leuze.com
[email protected]

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1.1 Used symbols and signal words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Approved purpose and foreseeable improper operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1.1 Proper use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1.2 Foreseeable misuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Competent persons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3 Responsibility for safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.4 Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
9
3.1 Device overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2 Display elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.1 Start/restart interlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.2 Contactor monitoring (EDM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.3 STOP1 function (only MSI-TSB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.1 Access guarding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.1 Arrangement of the protective device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.1.1 Calculating the safety distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.1.2 Multi-axis arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.1.3 Minimum distance to reflective surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.1.4 Checklist  mounting the light beam safety device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7.1 Terminal assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.2 Circuit diagram examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
8.1 Switching on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
8.2 Start/restart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
8.2.1 Unlocking start/restart interlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
9.1 Before the initial start-up and following modifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
9.1.1 Checklist  initial start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
9.2 To be performed periodically by a competent person . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
9.3 To be performed daily by the operating personnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
9.3.1 Check list  daily or at change of shift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
11.1 What to do in case of failure? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
11.2 Operating displays of the LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Leuze electronic MSI-TB 4
14.1 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

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Table 1.1: Warning symbols and signal words
Table 1.2: Other symbols
Table 1.3: Terms and abbreviations
The checklists (see chapter 9 Testing) serve as a reference for the machine manufacturer or supplier.
They replace neither testing of the complete machine or system prior to the initial start-up nor their periodic
testing by a competent person. The checklists contain minimum testing requirements. Depending on the
application, other tests may be necessary.
Symbol indicating dangers to persons
NOTICE Signal word for property damage
Indicates dangers that may result in property damage if the measures for danger
avoidance are not followed.
CAUTION Signal word for minor injury
Indicates dangers that may result in minor injury if the measures for danger avoid-
ance are not followed.
WARNING Signal word for serious injury
Indicates dangers that may result in serious or fatal injury if the measures for danger
avoidance are not followed.
DANGER Signal word for life-threatening danger
Indicates dangers with which serious or fatal injury is imminent if the measures for
danger avoidance are not followed.
Symbol for tips
Text passages with this symbol provide you with further information.
Symbols for action steps
Text passages with this symbol instruct you to perform actions.
AOPD Active Optoelectronic Protective Device
Active Optoelectronic Protective Device
EDM External Device Monitoring
OSSD Output Signal Switching Device
SSD Secondary Switching Device
RES Start/ tart interlock
PFHDProbability of a dangerous failure per hour
Probability of dangerous Failure per Hour
MTTFdMean time to a dangerous failure
(Mean Time To dangerous Failure)
PL Performance Level

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Before using the safety relay, a risk evaluation must be performed according to valid standards (e.g.
EN ISO 12100, ISO 13849-1, EN/IEC 61508, EN/IEC 62061). The result of the risk assessment deter-
mines the required safety level of the safety relay (see table 14.1). For mounting, operating and testing,
this document as well as all applicable national and international standards, regulations, rules and direc-
tives must be observed. Relevant and supplied documents must be observed and handed to the affected
personnel.
Before working with the safety relay, completely read and understand the documents applicable to your
task.
In particular, the following national and international legal regulations apply for the start-up, technical
inspections and work with safety relays:
 Machinery directive 2006/42/EC
 Low voltage directive 2006/95/EC
 Electromagnetic compatibility 2004/108/EC
 Use of Work Equipment Directive 2009/104/EG
 OSHA 1910 Subpart 0
 Safety regulations
 Accident-prevention regulations and safety rules
 Industrial safety regulation and employment protection act
 Product Safety Act
For safety-related information you may also contact the local authorities (e.g., industrial inspec-
torate, employer's liability insurance association, labor inspectorate, occupational safety and
health authority).
During all conversions, maintenance work and inspections, make certain that the voltage supply is
interrupted and protected against being restarted again.
Only have work on the electrical system and electronics performed by a competent person.
Make certain that the safety relay is correctly connected and that the protective function of the protec-
tive device is ensured.
Make certain that, during all conversions, maintenance work and inspections, the system is securely
shut down and protected against being restarted again.

Leuze electronic MSI-TB 7
Only if the safety relay is correctly connected and correctly started up is the protective function of the
protective device ensured. To prevent misuse and resulting dangers, the following must be observed:
 These operating instructions are included in the documentation of the system on which the protective
device is mounted and are available to the operating personnel at all times.
 The safety relay is used as a safety monitoring device in combination with one or more light beam
safety devices for safeguarding danger zones or points of operation on machines and systems.
 The safety relay must only be used after it has been selected in accordance with the respectively
applicable instructions and relevant standards, rules and regulations regarding labor protection and
safety at work, and after it has been installed, connected, checked and commissioned by a -
.
 The safety relay must only be connected and commissioned in accordance with its specifications
(technical data, environmental conditions, etc.).
 The Reset acknowledgment button for unlocking the start/restart interlock must be located outside
of the danger zone.
 The entire danger zone must be visible from the installation site of the acknowledgment button.
 The safety relay must be selected so that its safety-related capability meets or exceeds the required
Performance Level PL ascertained in the risk assessment (see table 14.1).
 The machine or system control must be electrically influenceable so that a switch command sent by
the safety relay results in the immediate shutdown of the dangerous movement.
 The construction of the safety relay must not be altered. When manipulating the Safety Relay, the
protective function is no longer guaranteed. Manipulating the safety relay also voids all warranty
claims against the manufacturer of the safety relay.
 The safety relay must be tested regularly by a competent person (see chapter 9 Testing).
 The safety relay must be exchanged after a maximum of 20 years. Repairs or the exchange of parts
subject to wear and tear do not extend the service life.
Any use other than that defined under the Approved purpose or which goes beyond that use is consid-
ered improper use.
Alone, the safety relay is not a complete protective device. It is not suitable for use in the following cases:
 in explosive or easily flammable atmospheres.
 on machines or systems with long stopping times.
Prerequisites for competent persons:
 They have a suitable technical education.
 They know the rules and regulations for labor protection, safety at work and safety technology and
can assess the safety of the machine.
 They know the instructions for the safety relay and the machine.
 They have been instructed by the responsible person on the mounting and operation of the machine
and of the safety relay.
Manufacturer and operating company must ensure that the machine and implemented safety relay func-
tion properly and that all affected persons are adequately informed and trained.
The type and content of all imparted information must not lead to unsafe actions by users.
The manufacturer of the machine is responsible for:
 Safe machine construction
 Safe implementation of the safety relay
 Imparting all relevant information to the operating company
 Adhering to all regulations and directives for the safe starting-up of the machine

Leuze electronic MSI-TB 8
The operator of the machine is responsible for:
 Instructing the operating personnel
 Maintaining the safe operation of the machine
 Adhering to all regulations and directives for labor protection and safety at work
 Regular testing by competent persons
Leuze electronic GmbH + Co. KG is not liable in the following cases:
 Safety relay is not used as intended
 Safety notices are not adhered to.
 Reasonably foreseeable misuse is not taken into account.
 Mounting and electrical connection are not properly performed.
 Proper function is not tested (see chapter 9 Testing).
 Changes (e.g., constructional) are made to the safety relay

Leuze electronic MSI-TB 9
The safety relays of the MSI-TB series are safety monitoring devices for electro-sensitive protective equip-
ment (ESPE), type 2, on machines with risks of bodily injury (acc. to EN 61496-1). As part of the electrical
equipment, they enable machines or systems to achieve a safe state before persons can be endangered.
The safety relay is intended for installation on the DIN rail in the cabinet and is wired via the 16 terminals .
All connection terminals are pluggable. The individual terminal blocks are mechanically coded to prevent
swapping or skewed plug in. The safety relays are available with screw terminals or spring-cage terminals.
The complete safety system consists of a safety relay and safety sensors connected to it.
Figure 3.1: MSI-TR1B with screw terminals Figure 3.2: MSI-TR1B with spring-cage terminals

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a Start/active
b Active
c Transmitter
d Receiver
e Reset
f Operation with start/restart interlock
g Operation without start/restart interlock
h EDM (contactor monitoring, feedback circuit)
i Output Signal Switching Device OSSD
j Secondary switching device SSD
k Indication output Safety On
l Indication output Error
Figure 3.3: Structure of the complete safety system
Device versions:
 MSI-TR1B: standard safety monitoring device for type-2 sensors.
 MSI-TR2B: safety monitoring device with extended filter time (switches only after a continuous inter-
ruption > 130 ms; ignores small parts).
 MSI-TSB: safety monitoring device with STOP1 function.
The display elements of the safety relay simplify the start-up and fault analysis.
0V
Var . B
Var . A
+24V
St at e
Er r o r
MSI-TB
active
Receiver
0V + 24V
RES
reset
Error
active
St a r t
w/o RES
-K1
-K2
5
-A3
6
14 15 22 21 13
7 8 30 32
24 29 3123
-K2-K1
-K1
-K2
A1
A2
-K1
A1
A2
-K2
1
2
1
2
44
3
-A2
116
0V
+24V
PE
L+ L+
+ 24V
0V
PE
L- L-
3
1
Transmitter
-A1
a
b
dc
f e
h
g
j
j
i
ilk
+24V
0V
**
Figure 3.4: MSI-TR1B Figure 3.5: MSI-TR2B Figure 3.6: MSI-TSB