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User Information
EUCHNER GmbH + Co. KG Kohlhammerstraße 16 DE-70771 Leinfelden-Echterdingen Tel. +49/711/75 97-0 Fax +49/711/75 33 16 www.euchner.de info@euchner.de
Emergency Stop Safety Relay ESM-BA2..
V1.1.0
•
Cyclical monitoring of the output contacts
•
Indication of the switching state via LED
•
2 start behaviors possible:
- Monitored manual start
- Automatic start
•
Up to PL e, SILCL 3, category 4
Correct Use
The ESM-BA2.. is a universal emergency stop safety switching
device with two safe relay outputs that can quickly and safely
stop the moving parts of a machine or system in case of danger.
Applications for the ESM-BA2.. include single or dual-channel
emergency stop circuits and guard monitoring on machines and
systems.
Features
•
2 safe, redundant relay outputs
•
Connection of:
- Emergency stop buttons
- Safety switches
- Non-contact safety switches
- OSSD-Outputs
•
Single and dual-channel operation possible
•
Feedback loop for monitoring downstream contactors or
expansion modules
Function
The emergency stop safety switching device ESM-BA2.. is
designed for safe isolation of safety circuits according to
DIN EN 60204-1 and can be used up to safety category 4,
PL e according to DIN EN ISO 13849-1.
The internal logical system closes the safety contacts when
the start button is pressed.
When the emergency stop circuit is opened, the positively
driven safety contacts are opened and safely switch the
machine off. It is ensured that a single fault does not lead
to a loss of the safety function and that every fault is detec-
ted by cyclical self-monitoring no later than when the sys-
tem is switched off and switched on again.
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 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 excee-
ded.
•
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. Ope-
ning the device will void the warranty.
Installation
As per DIN EN 60204-1, the device is intended for installa-
tion 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
Fig. 1 Block diagram ESM-BA2..
Fig. 2 Installation / removal
Fig. 3 Connections
A1:
Power supply
A2.
Power supply
S11:
DC 24 V control voltage
S10:
Control line
S21:
Start control line
S13:
Control line
S14:
Control line
S12:
Control line
13-14:
Safety contact 1
23-24:
Safety contact 2
•
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.
•
Note down the version of the product (see label “Vx.x.x”)
and check it prior to every commissioning of a new de-
vice. If the version has changed, the overall concept of
the control system in which the device is incorporated
must be validated again by the user.
•
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.
•
It is not allowed to open the device, tamper with the
device or bypass the safety devices.
