EUCHNER ESM-ES3xx - Manual

1
User Information
EUCHNER GmbH + Co. KG Kohlhammerstraße 16 D-70771 Leinfelden-Echterdingen Tel. +49/711/75 97-0 Fax +49/711/75 33 16 www.euchner.de [email protected]
Safety Expansion Contact Block ESM-ES3..
• Earth fault monitoring
• Indication of the switching state via LED
• Up to PL e, SILCL 3, category 4
• It is not allowed to open the device, tamper with the de-
vice or bypass the safety devices.
• All relevant safety regulations and standards are to be
observed.
• The overall concept of the control system in which the
device is incorporated must be validated by the user.
• Failure to observe the safety regulations can result in
death, serious injury and serious damage.
Correct Use
The ESM-ES3.. contact block in combination with any basic device
from the EUCHNER ESM series can be used to produce up to three
additional safety contact paths per device. An existing system can
thus be expanded practically indefinitely in a modular manner.
Activation takes place via a safety contact of the basic device; the
ESM-ES3.. provides signaling contacts for fault monitoring. The
devices can be used in systems up to safety category 4, PL e.
Features
• 3 safe, redundant relay outputs
1 auxiliary contact (fault monitoring)
• Activation via basic device from the EUCHNER ESM
series
• Modular, freely configurable safety system
• Fault monitoring by basic device
Function
The safety expansion contact block ESM-ES3.. in combina-
tion with a basic device 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 4, PL e
according to EN ISO 13849-1.
Terminal S11 (DC 24V control voltage) is connected with
terminals S15 and S16 via the safety contacts of the basic
device. Starting the basic device also activates the ESM-
ES3.. . The basic device disconnects the control voltage
when the safety switch is operated, and the safety contacts
of the ESM-ES3.. open immediately.
If a fault occurs in the ESM-ES3.. , this is detected by the
basic device via terminals S23 and S24.
Independent operation without basic device is not
possible.
Electrical
Connection • When the 24 V version is used, a safety transformer
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 (4 A slow-blow or 6
A quick-action or 10 A gG) must be provided.
• A maximum length of the control lines of 1000 meters
with a line cross section of 0.75 mm
2 must not be ex-
ceeded.
• The line cross section must not exceed 2.5 mm 2 .
• If the device does not function after commissioning, it
must be returned to the manufacturer unopened. Open-
ing the device will void the warranty.
• PE (protective earth) must be connected to terminal S10
on the AC 115/230V variant. Wiring of the overall device
is to be designed for 115/230V.
Installation As per EN 60204-1, the device is intended for installation in
control cabinets with a minimum degree of protection of
IP54. It is mounted on a 35-mm DIN rail according to DIN
EN 60715 TH35.
Safety
Precautions • Installation and commissioning of the device must be
performed only by authorized personnel.
• Observe the country-specific regulations when installing
the device.
• The electrical connection of the device is only allowed to
be made with the device isolated.
• The wiring of the device must comply with the instruc-
tions in this user information, otherwise there is a risk
that the safety function will be lost.
Fig. 1 Block diagram ESM-ES3..
Fig. 2 Installation / removal
Fig. 3 Connections
A1: Power supply
A2 : Power supply
S11: DC 24V control voltage
S10: control line
S15: control line
S16: control line
S23: Fault monitoring
S24: Fault monitoring
13-14: Safety contact 1
23-24: Safety contact 2
33-34: Safety contact 3
(not for plug-in termnals)