turck IMX12-CD Guide de l'utilisateur
Your Global Automation Partner
IMX12-CD | IM12-CD
Relay Coupler
Safety Manual
2 Hans Turck GmbH & Co. KG | T +49 208 4952-0 | F +49 208 4952-264 | more@turck.com | www.turck.com
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V01.0 | 2019/04
1 About this Document 5
2 Scope 5
3 Safety Integrity Level 5
4 Product Description 6
4.1 Safety function 7
4.1.1 Safety Function IMX12-CD01-2R-2U 7
4.1.2 Safety Function IM12-CD01-2R-1U 10
4.2 Safe state 11
5 Safety Planning 12
5.1 Architectural specications 12
5.2 Assumptions 12
5.3 FMEDA results 13
5.4 Examples for using the results 13
5.4.1 Probability of dangerous failure per hour (High Demand mode) 13
5.4.2 Average probability of dangerous failure on demand (Low Demand mode) 14
6 Safety Operating Instructions 15
6.1 General 15
6.2 Before operation 16
6.3 Operation 17
6.4 After operation 18
7 Appendix: Connection and Wiring Diagrams 19
7.1 IMX12-CD01-2R-2U 19
7.2 IM12-CD01-2R-1U 19
7.3 Output relay – Load curve 20
8 Appendix: Terms and Abbreviations 20
9 Appendix: Proof Tests 21
10 Appendix: Document History 21
Contents
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Hans Turck GmbH & Co. KG | T +49 208 4952-0 | F +49 208 4952-264 | more@turck.com | www.turck.com
5
V01.0 | 2019/04
1 About this Document
This safety manual contains all information that is required to operate the device in functional
safety systems. Read this manual carefully before using the device.
This document addresses only functional safety according IEC 61508. Other aspects, such as
intrinsic safety, are not considered.
All instructions must be followed in order to assure functional safety.
Always make sure that this is the latest version of the safety manual at www.turck.com. The
English version is considered the definitive document. Care was taken in the production of the
translations of this document. If there is any uncertainty in its interpretation, refer to the English
version of the safety manual or contact Turck directly.
2 Scope
This safety manual is valid for the following devices.
Ident no. Product Name Number of
channels
Terminal Block Design Power-Bridge
connection
7580620 IMX12-CD01-2R-2U-0/L 2 screw clamps no
7580621 IMX12-CD01-2R-2U-0/L/CC 2 spring type terminals no
7580622 IM12-CD01-2R-1U-0/L 1 screw clamps no
7580623 IM12-CD01-2R-1U-0/L/CC 1 spring type terminals no
In the following chapters the devices are divided
■IMX12-CD01-2R-2U
■IM12-CD01-2R-1U
3 Safety Integrity Level
The devices are rated to a SIL of
SIL3
6
Product Description
Hans Turck GmbH & Co. KG | T +49 208 4952-0 | F +49 208 4952-264 | more@turck.com | www.turck.com
4 Product Description
In the following chapter the individual variants are described.
All information provided in this chapter is not part of safety function.
The devices are intended exclusively for industrial use. The relay couplers of the IM12-CD…
series ensure safe galvanic isolation between contact and control circuits. Possible applications
are e.g. remote reset, fire alarm test or the remote calibration of strain gauges.
The devices can also be used for safety-related applications up to and including SIL3 (high and
low demand according to IEC 61508) (hardware fault tolerance HFT = 1).
IMX12-CD01-2R-2U The IMX12-CD… relay couplers are equipped with three relay outputs (change-
over switches). Depending on the input level, the input signals are interpreted
as low or high level and provided as a corresponding output signal. The inputs
are not polarized. Input E1 and input E2 switch output A1 or output A2 With
input E3, output A1, output A2 and output A3 are controlled simultaneously. The
device is powered by the input signal (Loop Powered)
IM12-CD01-2R-1U The IM12-CD… relay couplers are equipped with two relay outputs (changeover
switches). Depending on the input level, the input signal is interpreted as low
or high level and provided as a corresponding output signal. The inputs are not
polarized. Input E1 switches output A1 and output A2 The device is powered by
the input signal (Loop Powered).
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4.1 Safety function
4.1.1 Safety Function IMX12-CD01-2R-2U
SIL2 – Loop Powered mode with independent channels
SIL2
[E1] [A1]
or
[E2] [A2]
Safety Function:
If a Low signal is present at input [E1, E2], the corresponding output relay (A1, A2) is de-energized within
maximum 40 ms, so that NO contact is open and NC contact is closed.
NE load connection:
Safety Function for NE (Normally Energized) load (de-energized in safe state) is available at Terminal
Blocks 7…8 (A1) and Terminal Blocks 3…4 (A2).
ND load connection:
Safety Function for ND (Normally De-Energized) load is available at Terminal Blocks 6…8 (A1) and Termi-
nal Blocks 5…4 (A2).
7
6
8
A1 YE
YE
9
10 E1
11
12 E2
13
14
3
5
4
A2
1
2YE
NC
NO
COM
NC
NO
COM
(SIL 2)
(SIL 2)
8
Product Description
Hans Turck GmbH & Co. KG | T +49 208 4952-0 | F +49 208 4952-264 | more@turck.com | www.turck.com
SIL3 – Loop Powered mode with 1oo2 channel architecture and E1+E2 as input
SIL3
[E1+E2] [A1+A2]
NE load
Safety Function:
If a simultaneous low signal is present at input [E1] and [E2], connected in parallel by a single SIL3 signal
source or two SIL2 signal sources, the output relay [A1] and [A2] are de-energized within maximum
40ms, so in serial connected NO contacts are open.
NE load connection:
SIL 3 Safety Function for NE (Normally Energized) load (de-energized in safe state) is available at Termi-
nal Blocks 7…4. Two NO contacts in series connection.
SIL3
[E1+E2] [A1+A2]
ND load
Safety Function:
If a simultaneous low signal is present at input [E1] and [E2], connected in parallel by a single SIL3 signal
source or two SIL2 signal sources, the output relay [A1] and [A2] are de-energized within maximum
40ms, so in parallel connected NC contacts are closed.
ND load connection:
SIL 3 Safety Function for ND (Normally De-Energized) load (energized in safe state) is available at
Terminal Blocks 6…8 (or 5…4 because externally connected in parallel). Two NC contacts in parallel
connection.
7
6
8
A1 YE
YE
9
10 E1
11
12
13
14
3
5
4
1
2YE
NC
NO
COM
NC
NO
COM
(SIL 3)
7
6
8
A1 YE
YE
9
10 E1
11
12
13
14
3
5
4
1
2YE
NC
NO
COM
NC
NO
COM
(SIL 3)
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SIL3 – Loop Powered mode with 1oo2 channel architecture and E3 as input
SIL3
[E3] [A1+A2]
NE load
Safety Function:
If a simultaneous low signal is present at input [E3], connected by a single SIL3 signal source, the output
relay [A1] and [A2] are de-energized within maximum 40 ms, so in serial connected NO contacts are
open.
NE load connection:
SIL 3 Safety Function for NE (Normally Energized) load (de-energized in safe state) is available at Termi-
nal Blocks 7…4. Two NO contacts in series connection.
SIL3
[E3] [A1+A2]
ND load
Safety Function:
If a simultaneous low signal is present at input [E3], connected by a single SIL3 signal source, the output
relay [A1] and [A2] are de-energized within maximum 40 ms, so in parallel connected NC contacts are
closed.
ND load connection:
SIL 3 Safety Function for ND (Normally De-Energized) load (energized in safe state) is available at
Terminal Blocks 6…8 (or 5…4 because externally connected in parallel). Two NC contacts in parallel
connection.
7
6
8
A1 YE
YE
9
10
E3
11
12
13
14
3
5
4
1
2YE
NC
NO
COM
NC
NO
COM
(SIL 3)
7
6
8
A1 YE
YE
9
10
11
12
13
14
3
5
4
1
2YE
NC
NO
COM
NC
NO
COM
(SIL 3)
E3
10
Product Description
Hans Turck GmbH & Co. KG | T +49 208 4952-0 | F +49 208 4952-264 | more@turck.com | www.turck.com
4.1.2 Safety Function IM12-CD01-2R-1U
SIL2 – Loop Powered mode with one channel
SIL2
[E1] [A1]
Safety Function:
If a Low signal is present at input [E1], the corresponding output relay (A1) is de-energized within maxi-
mum 40 ms, so that NO contact is open and NC contact is closed.
NE load connection:
Safety Function for NE (Normally Energized) load (de-energized in safe state) is available at Terminal
Blocks 7…8 [A1].
ND load connection:
Safety Function for ND (Normally De-Energized) load is available at Terminal Blocks 6…8 [A1].
SIL3 – Loop Powered mode with 1oo2 channel architecture
SIL3
[E1] [A1+A2]
NE load
Safety Function:
If a low signal is present at input [E1], connected by a single SIL3 signal source, the output relay [A1] and
[A2] are de-energized within maximum 40 ms, so in serial connected NO contacts are open
NE load connection:
SIL 3 Safety Function for NE (Normally Energized) load (de-energized in safe state) is available at Termi-
nal Blocks 7…4. Two NO contacts in series connection.
7
6
8YE
9
10
3
5
4YE
A1(SIL 2) E1
NC
NO
COM
NC
NO
COM
7
6
8YE
9
10
3
5
4YE
A1(SIL 3) E1
NC
NO
COM
NC
NO
COM
Ce manuel convient aux modèles suivants
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Table des matières
