3
Operating Instruction
ESR4-NOE-31, ESR4-NOE-40
Basic device for Emergency-Stop and Safety Gate Applications
x
Applicable for stop categories 0 (EN 60204-1)
x
Application up to category 4 (EN 954-1)
x
Application up to SIL
CL
3 (EN 62061)
x
Single or two channel control
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With or without cross monitoring
x
4 Enabling paths ESR4-NOE-40
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3 Enabling paths, 1 signalling path ESR4-NOE-31
x
Manual or automatic start
Front View
POWER
K1
K2
LED green
LED green
LED green
Safety Instructions
Only trained professional electricians may in-
stall, startup, modify, and retrofit this equipment!
Disconnect the device / system from all power
sources prior to starting any work! If installation
or system errors occur, line voltage may be pre-
sent at the control circuit in devices without DC
isolation!
Observe all electrical safety regulations issued
by the appropriate technical authorities or the
trade association. The safety function can be
lost if the device is not used for the intended
purpose. Opening the housing or any other ma-
nipulation will void the warranty.
Caution!
If the device has been subjected to improper or
incorrect use it must no longer be used, and the
guarantee loses its validity. Impermissible condi-
tions include:
strong mechanical stress, for example through a
fall, or voltages, currents, temperatures or hu-
midity outside of the specifications.
Before starting up your machine/plant for the
first time, please be sure to check all the safety
functions according to valid regulations, and
observe the specified test cycles for safety
equipment.
Description of Device and Function
This device is a two-channel safety switching device for safety applications with self-monitoring on
each ON-OFF cycle. It conforms to EN 60204-1, EN 81-1/2, EN 50156-1 and is equipped with posi-
tively driven relays.
After supply voltage has been connected to terminals A1/A2 and the safety inputs closed, operating
the reset button closes the enabling current paths (manual start). When the safety inputs are
opened/de-excited the enabling current paths will open.
Proper Use
The devices are safety switching devices. They must only be used as components of safety equipment on
machines intended to protect persons, material and plant.
Notes
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The safety classification depends on the external circuitry, the choice of control devices and
their location on the machine.
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The devices must be installed in a cabinet with a protection class of at least IP 54.
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Expansion devices ESR4-NE, ESR4-VE or external contactors with positively driven contacts
can be used to duplicate the enabling current paths.
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The devices are not to be used for safety mat monitoring.
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The isolation of supply lines and the connected equipment (switches, sensors, valves , ...) are
to be laid out with regard to the electric security for the highest voltage appearing in the de-
vice.
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The correct function of the device is to be examined with consideration of the monitoring
mechanisms (restarting lockout, cross monitoring, ...) at least annually.
x
By the installation and the operation of the device the user-specific norms (EN 81-1/2,
EN 50156-1, ...) are to be considered.
x
With the application in furnaces output circuits are to be secured with 0.6 * I
n
.
Caution!
Please observe instructions from safety authorities and national regulations.
Device Types Overview
Start
Enabling
Paths
Signalling
Paths
Automatic Manual
ESR4-NOE-31 3
1
x
x
ESR4-NOE-40 4
--
x
x
Perform the following precautionary steps prior
to installation, assembly, or disassembly:
1. Disconnect supply voltage to the equipment
/ system prior to starting any work!
2. Lockout/tag the equipment / system to pre-
vent accidental activation!
3. Confirm that no voltage is present!
4. Ground the phases and short to ground!
5. Protect against adjacent live components
using guards and barriers!
Caution!
Limited contact protection! Protection type ac-
cording to EN 60529.
Housing/terminals: IP 40/ IP 20.
Finger-proof acc. to VDE 0660 Part 514.