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Operating Instructions
Safety Contact Expansion ESM-TE3..
Scope
These operating instructions apply to all safety con-
tact expansions ESM-TE3...V1.1.X. These operating
instructions, the document Safety information and
maintenance and any available data sheet form the
complete user information for your device.
Important!
Make sure to use the operating instructions
valid for your product version. Please contact the
EUCHNER Service team if you have any questions.
Supplementary documents
The overall documentation for this device consists
of the following documents:
Document title
Contents
(document number)
Safety information
Basic safety information
(2525460)
Operating instructions
(this document)
(2090075)
Declaration of con-
Declaration of conformity
formity
Any additions to the
Take any associated additions to
operating instructions
the operating instructions or data
sheets into account.
Important!
Always read all documents to gain a complete
overview of safe installation, setup and use of
the device. The documents can be downloaded
from www.euchner.com. For this purpose, enter
the doc. no. or the order number for the device
in the search box.
Correct use
The ESM-TE3.. is an expansion module that can be
operated with any safety relay from the EUCHNER
ESM series, e.g. ESM-BA2.. or ESM-BA3.., in order
to permit delayed switch-off of machine parts. This
could be the case if it is safer to return a tool to
its initial position first instead of stopping operation
immediately, for example. The ESM-TE3.. was de-
signed as a component for a modular system: any
combination of ESM-TE3.. units and non-time-delayed
contact expansions ESM-ES3.. can be interconnect-
ed with just a few lines, permitting realization of an
overall system with different times and the specific
number of safety contacts required.
Before the device is used, a risk assessment must
be performed on the machine, e.g. in accordance
with the following standards:
EN ISO 13849-1
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EN ISO 12100
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IEC 62061.
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Correct use includes observing the relevant require-
ments for installation and operation, particularly
based on the following standards:
EN ISO 13849-1
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EN 60204-1
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IEC 62061.
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Important!
The user is responsible for the integration of the
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device in a safe overall system. For this purpose,
the overall system must be validated, e.g. in
accordance with EN ISO 13849-1.
The device user must assess and document
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remaining risks.
If a data sheet is included with the product, the
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information on the data sheet applies.
Safety precautions
WARNING
Installation and setup of the device must be
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performed only by authorized personnel.
Observe the country-specific regulations when
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installing the device.
The electrical connection of the device is only
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allowed to be made with the device isolated.
The wiring of the device must comply with the
f
instructions in these operating instructions,
otherwise there is a risk that the safety function
will be lost.
It is not allowed to open the device, tamper with
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the device or bypass the safety devices.
All relevant safety regulations and standards are
f
to be observed.
The overall concept of the control system in
f
which the device is incorporated must be vali-
dated by the user.
www
Failure to observe the safety regulations can re-
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sult in death, severe injuries and serious damage.
www
Note down the version of the device (see type la-
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bel Vx.x.x) and check it each time prior to setup.
If the version changes, the use of the device in
the overall application must be validated again.
Features
3 safe, redundant, time-delayed relay outputs
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1 auxiliary contact (error monitoring)
Control via safety relay from the EUCHNER ESM
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series
Continuously adjustable time delay (1 ... 30 s) or
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fixed time delay (ESM-TE3...-05S)
Modular, freely configurable safety system
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Corresponds to STOP category 1
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Error monitoring by safety relay
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Indication of the switching state via LED
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Up to PL d, category 3, SILCL 2
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Function
The time-delayed safe expansion module ESM-TE3..
in combination with a safety relay from the EUCHNER
ESM series is designed for safe isolation of safety
circuits according to EN 60204-1 and can be
used up to safety category 3, PL d according to
EN ISO 13849-1.
The ESM-TE3.. provides a control voltage of DC 24 V
at terminal S11. In order for the ESM-TE3.. to switch
together with the connected safety relay, the control
voltage at S11 is connected to terminals S15 and
S16 of the ESM-TE3.. via one of the safety contacts
of the safety relay (see Fig. 5 and Fig. 6). The safety
contacts of the safety relay close when the safety
relay is activated, and the DC 24 V control voltage
from terminal S11 is then at terminals S15 and
S16 of the ESM-TE3... The safety contacts of the
ESM-TE3.. switch immediately.
The safety relay disconnects the control voltage
when the safety switch is operated, and the safety
contacts of the ESM-TE3.. open after the time set
on the ESM-TE3.. elapses (the power supply must
be present during the time sequence).
If a fault occurs in the ESM-TE3.., this is detected by
the safety relay via terminals S25 and S26.
Independent operation without a safety relay
is not possible.
Fig. 1: Block diagram for ESM-TE3..
4
Mounting
As per EN 60204-1, the device is intended for in-
stallation in control cabinets with a minimum degree
of protection of IP54. It is mounted on a 35 mm
mounting rail according to DIN EN 60715 TH35.
Fig. 2: Mounting/removing
Electrical connection
When the 24 V version is used, a safety transform-
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er according to EN 61558-2-6 or a power supply
unit with electrical isolation from the mains must
be connected.
External fusing of the safety contacts must be
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provided.
A maximum length of the control lines of 1,000 m
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with a conductor cross-section of 0.75 mm² must
not be exceeded.
The conductor cross-section must not exceed
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2.5 mm².
If the device does not function after setup, it must
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be returned to the manufacturer unopened. Open-
ing the device will void the warranty.
A suppressor circuit suitable for inductive loads
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(e.g. free-wheeling diode) is to be provided.
A1
Power supply
A2
Power supply
S11
DC 24 V control voltage
S10
Control line
S15
Control line
S16
Control line
S25
Error monitoring
S26
Error monitoring
17-18
Time-delayed safety contact 1
27-28
Time-delayed safety contact 2
37-38
Time-delayed safety contact 3
Fig. 3: Connections
Setup procedure
Notice
The items listed under Electrical connection must
be observed during setup.
1. Wiring ESM-TE3..:
Wire the ESM-TE3.. with the EUCHNER safety relay
according to your application (see Fig. 5 and Fig. 6).
2. Wiring safety relay:
Wire the safety relay according to the required
Performance Level determined (see operating
instructions for the safety relay).
3. Wiring feedback loop:
Wire the feedback loop as shown in Fig. 7 and Fig. 8.
4. Wiring power supply:
Connect the power supply to terminals A1 and A2
(see Fig. 9).
Attention: Wiring only in de-energized state.
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