Operating Instructions
Safety Systems with Locking
ESL-IH-AR
More than safety.
Operating Instructions ESL
Contents
Correct use 3
Exclusion of liability and warranty 4
General safety instructions 5
Function 5
System overview 6
Modules 6
Dimension drawing 6
Changing the connection 7
Mounting 8
Electrical connection 9
Safety in case of faults 11
Fuse protection for power supply 11
Requirements for connection cables 11
Maximum cable lengths 12
Connector assignment 13
Connection of a single ESL 14
Connection of several ESL devices in an AR switch chain 15
Setup 16
LED indicators 16
Teach-in function for handle module (only ESL unicode) 16
Mechanical function test 17
Electrical function test 17
System status table 18
Technical data 19
Technical data for safety system ESL 19
Ordering information and accessories 21
Inspection and service 22
Service 22
Declaration of conformity 23
2
Operating Instructions ESL
Correct use
The safety system ESL is an interlocking device without guard locking.
In combination with a safety guard, this safety component prevents dangerous
machine movements from being performed for as long as the safety guard is
opened. A stop command is triggered if the safety guard is opened during the
dangerous machine function.
Before safety switches are used, a risk assessment must be performed on the
machine, e.g. in accordance with:
Ì EN ISO 13849-1, Safety of machinery. Safety related parts of control systems.
General principles for design
Ì EN ISO 12100, Safety of machinery - General principles for design - Risk as-
sessment and risk reduction
Ì IEC 62061, Safety of machinery. Functional safety of safety-related electrical,
electronic and programmable electronic control systems.
Correct use includes compliance with the relevant requirements for installation
and operation, for example
Important!
Ì EN ISO 13849-1, Safety of machinery. Safety related parts of control systems.
General principles for design
Ì EN 1088, Safety of machinery. Interlocking devices associated with guards.
Principles for design and selection
Ì EN 60204-1, Safety of machinery. Electrical equipment of machines. General
requirements
Ì EN 60947-5-3, Specification for low-voltage switchgear and controlgear. Con-
trol circuit devices and switching elements. Requirements for proximity devices
with defined behavior under fault conditions
The safety system ESL can only be combined with the intended modules in the
ESL system family.
On the modification of system components, EUCHNER provides no warranty for function.
Several devices are only allowed to be connected in series using devices intended
for series connection with the ESL. Check the operating instructions for the related
device. A combination with other ESL devices or devices from other manufacturers
is not allowed.
A maximum of 20 devices are allowed to be operated in a switch chain.
Ì The user is responsible for the integration of the device into a safe overall
system. For this purpose, the overall system must be validated, e.g. in accordance with EN ISO 13849-2.
Ì Correct use requires observing the permissible operating parameters (see
Technical data).
Ì If a product data sheet is included with the product, the information on the
data sheet applies in case of discrepancies with the operating instructions.
Ì In the estimation of the PL for the overall system, a maximum value of
100 years can be assumed for the MTTFd according to the limit value in
EN ISO 13849-1:2008, section 4.5.2. This corresponds to a minimum value
for the PFHd of 2.47x10-8/h.
Ì When up to 11 devices are connected in series, these limit values can be
assumed for the entire switch chain as a subsystem. As a subsystem, this
switch chain achieves PL e.
3
Operating Instructions ESL
Important!
Ì In the case of series connection of more than 11 devices, the PFH
calculated according to one of the stated methods in EN ISO 13849-1:2008,
Section 4.5.1.
Ì If the simplified method according to section 6.3 of EN ISO 13849:2008-12
is used for validation, the Performance Level (PL) might be reduced when
more than 11 devices are connected in series.
Exclusion of liability and warranty
In case of failure to comply with the conditions for correct use stated above, or
if the safety instructions are not followed, or if any servicing is not performed as
required, liability will be excluded and the warranty void.
can be
d
4
Operating Instructions ESL
General safety instructions
Safety switches fulfill personal protection functions. Incorrect installation or tampering can lead to fatal injuries to personnel.
Check the safe function of the safety guard particularly
Ì after any setup work
Ì each time after the replacement of an ESL module
Ì after an extended period without use
Ì after every fault
Independent of these checks, the safe function of the safety guard should be
checked at suitable intervals as part of the maintenance schedule.
Warning!
Danger of fatal injury in the event of incorrect connection or incorrect use.
Ì Safety switches must not be bypassed (bridging of contacts), turned away,
removed or otherwise rendered ineffective.
On this topic pay attention in particular to the measures for reducing the pos-
sibility of bypassing from EN 1088:1995+A2:2008, section 5.7.
The switching operation may be triggered only by the handle module ESL-H...
designated for this purpose.
The device is only allowed to be installed and placed in operation by authorized
personnel
Ì who are familiar with the correct handling of safety components
Ì who are familiar with the applicable EMC regulations
Ì who are familiar with the applicable regulations on health and safety and ac-
cident prevention
Ì who have read and understood the operating instructions.
Function
Important!
Prior to use, read the operating instructions and keep these in a safe place.
Ensure the operating instructions are always available during mounting, setup
and servicing work. EUCHNER cannot provide any warranty in relation to the
readability of the CD for the storage period required. For this reason you should
archive a printed copy of the operating instructions. If you should lose the operating instructions, you can download this document from www.EUCHNER.de.
Together with a handle module, the interlocking module makes it possible to interlock movable safety guards. The combination also serves as a mechanical door
stop at the same time.
The interlocking module detects the position of the closure and thereby the position
of the safety guard.
5
Operating Instructions ESL
71,5
109
68
System overview
Modules
Interlocking module
LED indicator
Dimension drawing
Maximum vertical
offset between
interlocking module and handle
module ± 1 mm
Handle module
Closure
Lock
Possible profiles
30, 40, 45, 50
46
Red LED
107
Green LED
12
M12x1
6,6
9
Assembly with 4 x M6
screw (non-removable
screw) + 4 x washer
Interlocking
module
X1
Alignment
corresponds
to as-delivered
state
68
36
Interlocking module
mounted flush on profile
Handle
module
Z
Plug connector
X1 is adjustable
by 8 x 45°
≥ 5
40
.
38
Gap dimension 0 - 3 mm
View Z
58
5
4
6
7
1
3
8
2
Coding
°
5
4
lug
6
Operating Instructions ESL
Changing the connection
The plug connector position can be adapted to suit the installation. This change
must be performed before assembly.
1. Press the plug connector with the plastic inserts out of the profile slot.
¨ To adjust only the cable exit for angled plug connectors, align the plug and the
inserts accordingly and press the plug back into the profile slot.
2. Remove the connection cap on the opposite side.
3. For angled plug connectors, align the plug and the inserts accordingly.
4. Press the plug into the profile slot on the opposite side.
5. Seal the other opening with the connection cap.
7
Operating Instructions ESL
Mounting
Caution!
Ì The device is not suitable for use on sliding doors.
Ì When mounting, take care not to trap the cables between the device and the
profile.
Ì Permanently connect the actuator and handle module to the safety guard so
that it cannot be detached, e.g. using non-removable screws.
Important!
Ì When mounting different transponder-coded safety switches, observe the
stipulated minimum distance to avoid mutual interference.
60
With two-wing hinged doors, one of the two door wings additionally must be latched
mechanically.
1. Fasten the ESL using 4 M6 screws and washers.
¨ Please note that the gap dimension between handle module and interlocking
module is 0 - 3 mm; the max. vertical offset is ± 1 mm.
2. Tighten the screws to a torque of max. 10 Nm.
3. Fit the enclosed cover caps to protect against tampering.
8
Operating Instructions ESL
Electrical connection
The following connection options are available:
Ì Separate operation
Ì Series connection with Y-distributors from EUCHNER
Ì Series connection, e.g. with wiring in the control cabinet.
Warning!
In case of an error, loss of the safety function through incorrect connection.
Ì To ensure safety, both safety outputs (FO1A and FO1B) must always be eval-
uated.
Ì The monitoring output OD must not be used as a safety output.
Ì Lay the connection cables with protection to prevent the risk of short cir-
cuits.
Caution!
Risk of damage to equipment or malfunctions as a result of incorrect connection.
Ì Do not use a control system with pulsing or switch off the pulsing function in
your control system. The device generates its own clock signal on the output
lines FO1A/FO1B. A downstream control system must tolerate these test
pulses, which may have a length of up to 1 ms.
The pulses are also present when the safety outputs are switched off. De-
pending on the inertia of the connected device (control system, relay, etc.),
this can lead to short switching processes.
Ì The inputs on an evaluation unit connected must be positive-switching, as the
two outputs on the safety switch deliver a level of +24 V in the switched-on
state.
Ì All the electrical connections must either be isolated from the mains supply
by a safety transformer according to IEC EN 61558-2-6 with limited output
voltage in the event of a fault, or by other equivalent isolation measures.
Ì For use and operation as per the requirements*, a power supply with
the feature "for use in class 2 circuits" must be used. The same requirement
applies to the safety outputs.
Alternative solutions must comply with the following requirements:
a) Electrically isolated power supply unit with a max. open-circuit voltage of
b) Electrically isolated power supply unit in combination with fuse as per UL248.
Ì For use and applications as per the requirements of *, a connection ca-
ble listed under the UL category code CYJV2 must be used.
Ì All electrical outputs must have an adequate protective circuit for inductive
loads. The outputs must be protected with a free-wheeling diode for this pur-
pose.
Ì Power devices, which are a powerful source of interference, must be in-
stalled in a separate location away from the input and output circuits for
signal processing. The cable routing for safety circuits should be as far away
as possible from the cables of the power circuits.
Ì In order to avoid EMC interference, the physical environmental and operating
conditions at the installation site of the device must comply with the require-
ments according to the standard EN 60204-1:2006, section 4.4.2 (EMC).
* Note on the scope of the UL approval: Only for applications as per NFPA 79 (Industrial Machinery)
The devices are tested according to the requirements of UL508 (protection against electric shock and fire).
30 V/DC and a limited current of max. 8 A.
This fuse should be designed for max. 3.3 A and should be integrated into
the 30 V DC voltage section.
9
Operating Instructions ESL
Important!
If the device does not appear to function when operating voltage is applied (e.g.
green STATE LED does not flash), the safety switch must be returned unopened
to the manufacturer.
10
Operating Instructions ESL
Safety in case of faults
Ì The operating voltage U
is reverse polarity protected.
B
Ì The contacts FI1A/FI1B and FO1A/FO1B are short circuit-proof
Ì A short circuit between FI1A and FI1B or FO1A and FO1B is detected by the
switch.
Ì A short circuit in the cable can be excluded by laying the cable with protection.
Fuse protection for power supply
The power supply must be provided with fuse protection depending on the number
of devices and current required for the outputs. The following rules apply:
Max. current consumption of an individual device I
I
= IUB + IOD + I
max
= Switch operating current (max. 40 mA)
I
UB
= Monitoring output load current (max. 50 mA)
I
OD
I
FO1A+FO1B
= Load current of safety outputs FO1A + FO1B (2 x max. 100 mA)
FO1A+FO1B
Max. current consumption of a switch chain Σ I
Σ I
max
= I
FO1A+FO1B
+ n x (IUB + IOD)
n = Number of connected devices
max
max
Caution!
Requirements for connection cables
Risk of damage to equipment or malfunctions as a result of incorrect connection
cables.
Ì Use connection components and connection cables from EUCHNER
Ì On the usage of other connection components, the requirements in the fol-
lowing table apply. EUCHNER provides no warranty for safe function in case
of failure to comply with these requirements.
Observe the following requirements with respect to the connection cables:
Parameter Value Unit
Conductor cross-section min. 0.14 … 0.34 mm²
R max. 150 W/km
C max. 120 nF/km
L max. 0.65 mH/km
Recommended cable type LIYY 8x or 5x 0.34 mm²
11
Operating Instructions ESL
Maximum cable lengths
Switch chains are permitted up to a maximum overall cable length of 200 m taking
into account the voltage drop as a result of the cable resistance (see table below
with example data and case example).
SPS
PLC
u
= 24 V -10%
min
5 x 0,34 mm
l
=200 m
max
l
1
l
n
l
2
un = 24 V -20%
i
out
2
ESL-AR # n ESL-AR # n-1 ESL-AR # 1
l1 = 40 m
n
Max. number of
devices
5
6
10
(mA)
OD
Possible output current per channel
FO1A/FO1B
10 150
25 100
50 80
100 50
10 120
25 90
50 70
100 50
10 70
25 60
50 50
100 40
Max. cable length from the last de-
vice to the control system
l1 (m)
I
Determining cable lengths using the example table
Example: 6 devices are to be used in series. Cabling with a length of 40 m is
routed from a safety relay in the control cabinet to the last device (#6). Cables
with a length of 20 m each are connected between the individual ESL devices.
l
= 140 m
max
l
= 5 x 20 m
2
l
= 20 m
n
un = min. 19,2 V
Sicherheitsrelais
Safety Relay
i
= min. 75 mA
out
ESL-AR # 6
ESL-AR # 5 ESL-AR # 4 ESL-AR # 3
Figure 1: Circuit example with six ESL-AR
12
ESL-AR # 2 ESL-AR # 1
Operating Instructions ESL
A safety relay is connected downstream which consumes 75 mA at each of the
two safety inputs. This operates over the whole temperature range with a voltage
of 19.2 V (corresponds to 24 V -20%).
All the relevant values can now be determined using the example table:
1. Select the corresponding section in the column n (max. number of devices).
Here: 6 switches.
2. In column I
(possible output current per channel FO1A/FO1B), find a current
OD
greater than or equal to 75 mA. Here: 100 mA.
¨ The maximum cable length from the control system to the start of the switch
chain is listed in column l
Result: The desired cable length l
table. The overall length of the switch chain l
. Here: a length of 50 m is permitted.
1
of 40 m is below the permitted value from the
1
of 140 m is less than the maximum
max
value of 200 m.
¨ The planned application is therefore functional in this form.
Connector assignment
RST
UB
0V
FI1A
FI1B
FO1A
FO1B
OD
View on the connection side of the safety switch
8
2
7
6
1
8
1
3
4
5
Coding lug
6
7
5
4
3
2
Figure 2: Connector assignment
Pin Designation Description
1 FI1B Enable input for channel 2 white
2 UB Power supply, DC 24 V brown
3 FO1A Safety output, channel 1 green
4 FO1B Safety output, channel 2 yellow
5 OD Monitoring output gray
6 FI1A Enable input for channel 1 pink
7 0V Ground, DC 0 V blue
8 RST Reset input for hardware reset red
Wire color as per
DIN 47100
13
Operating Instructions ESL
Connection of a single ESL
If a single ESL is used, connect the device as shown in Figure 3. The OD output
can also be connected here to a control system as a monitoring output.
The device can be reset via the RST input. To do this, a voltage of 24 V is applied
to the RST input for at least 3 seconds. The supply voltage to the switch is interrupted during this time. The RST input must be connected to 0 V if it is not used.
DC 24 V
Warning!
UB2
FI1B1
FO1A3
FO1B4
M12 plug-connector
A1
0V7
OD5
FI1A6
RST8
-K1
A2
-K2
13
14
A1
13
A2
14
(8-pin)
M
ESL-AR #1
GND
-M1
Figure 3: Connection example for a single ESL-AR
In case of an error, loss of the safety function through incorrect connection.
Ì To ensure safety, both safety outputs (FO1A and FO1B) must always be eval-
uated. Single-channel use of the safety outputs leads to a reduction of the
category in accordance with EN ISO 13849-1.
DC 24 V
A1
FI1B
1
UB
2
FO1A
3
FO1B
4
OD
5
FI1A
6
0V7
RST8
-K1
A2
M12 plug-connector
(8-pin)
ESL-AR #1
GND
Figure 4: Example of incorrect connection.
14
A1
-K2
A2
13
14
M M
-M1 -M2
13
14
Operating Instructions ESL
Connection of several ESL devices in an AR switch chain
Important!
Ì A switch chain may contain a maximum of 20 safety switches.
Ì In the estimation of the PL for the overall system, a maximum value of
100 years can be assumed for the MTTFd according to the limit value in
EN ISO 13849-1:2008, section 4.5.2. This corresponds to a minimum value
for the PFHd of 2.47x10-8/h.
The devices are connected in series using plug connectors and Y-distributors. If
a safety door is opened or if a fault occurs on one of the switches, the system
shuts down the machine. A higher level control system can, however, not detect
which safety door is open or on which switch a fault has occurred.
The switches can be reset via the RST input. To do this, a voltage of 24 V is applied
to the RST input for at least 3 seconds. The supply voltage to the switches is interrupted during this time. The RST input must be connected to 0 V if it is not used.
DC 24 V
GND
Y-Verteiler/Y-distributor
Stift/
connector
(male)
1
2
3
4
5
1
UB
FI1B
1223344
M12 plug-connector
ESL-AR #n
5
OD
FO1A
FO1B
566
(8-pin)
Connected
load
FI1A
Buchse/
connector
(female)
7
0V
788
RST
Y-Verteiler/Y-distributor
Stift/
connector
(male)
1
1
2
2
3
3
4
4
5
5
1
UB
FI1B
FO1A
1223344
ESL-AR #n-1
FO1B
M12 plug-connector
(8-pin)
5
OD
566
FI1A
Buchse/
connector
(female)
7
0V
788
1
2
3
4
5
RST
Y-Verteiler/Y-distributor
Stift/
connector
(male)
1
2
3
4
5
1
UB
FI1B
1223344
M12 plug-connector
ESL-AR #1
FO1A
(8-pin)
5
FO1B
OD
566
FI1A
Buchse/
connector
(female)
7
0V
788
RST
Kurzschlussstecker/
Short-circuit plug
1
1
2
3
4
5
Stift/
2
connector
(male)
3
4
5
Figure 5: Connection example for series connection of several ESL-AR devices
15
Operating Instructions ESL
Setup
LED indicators
LED Color State Significance
STATE
green
illuminated
flashing
Normal operation
Teach-in operation or Power Up
(for further signal function see status table)
Important!
DIA
red
illuminated
- Internal electronics fault
- Fault at the inputs/outputs
Teach-in function for handle module (only ESL unicode)
The handle module must be assigned to the interlocking module using a teach-in
function before the system comprising interlocking module and handle module
forms a functional unit.
During a teach-in operation, the safety outputs are in high-resistance state, i.e. the
system is in the safe state.
When a handle module for which teach-in operation is possible is in the operating
distance, monitoring output OD indicates this with a HIGH signal.
Ì The interlocking module disables the code for the previous handle module
if teach-in is carried out for a new handle module. Teach-in is not possible
again immediately for this actuator if a new teach-in operation is carried out.
The disabled code is deleted again in the interlocking module only after a
third code has been taught.
Ì The interlocking module can only be operated with the last handle module
taught.
Ì The interlocking module enters normal operation when it detects the taught
handle module after power up.
Ì If the interlocking module detects a disabled handle module during teach-in
operation, it enters a fault state at the end of the teach-in operation.
Ì If the closure is within the operating distance for less than 30 seconds, the han-
dle module is not taught in and the interlocking module enters the fault state.
Teaching in handle module
1. Fit handle module.
2. Close safety guard. Check for correct alignment and distance and readjust if
necessary.
3. Apply operating voltage to the interlocking module.
¨ The green LED flashes quickly (approx. 5 Hz)
A self-test is performed during this time (approx. 8 s). Teach-in operation
starts, green LED flashes slowly (approx. 1 Hz). The teach-in operation is
ended after approx. 30 seconds and is positively acknowledged with an alternating red/green flashing sequence.
4. To activate the handle module's code from the teach-in operation in the interlocking module, the operating voltage must then be switched off at the interlocking
module for min. 3 seconds. As an alternative, 24V can be applied to the input
RST for min. 3 seconds.
16
Operating Instructions ESL
Mechanical function test
It must be possible to insert the closure easily into the interlocking module. Close
the safety guard several times to check the function.
Electrical function test
After installation and any fault, the safety function must be fully checked. Proceed
as follows:
Warning!
Danger of fatal injury as a result of faults in installation and functional check.
Ì Before carrying out the functional check, make sure that there are no per-
sons in the danger area.
Ì Observe the valid accident prevention regulations.
1. Switch on operating voltage.
Ì The interlocking module carries out a self-test.
The green STATE LED flashes for 8 s with 5 Hz.
The STATE LED then flashes at regular intervals.
2. Close all safety guards.
Ì The machine must not start automatically.
Ì The green STATE LED illuminates continuously.
3. Enable operation in the control system.
4. Open the safety guard.
Ì The machine must switch off and it must not be possible to start it as long as
the safety guard is open.
Ì The green STATE LED flashes at regular intervals.
Repeat steps 2-4 for each safety guard.
17
Operating Instructions ESL
System status table
LED indicator,
output
Operating mode
Self-test
Normal operation
Setup
Fault display
Handle module/door
position
Safety outputs FO1A
and FO1B
X off
closed on
open off
open off
closed off
X off
X off
X off
closed off
State
STATE (green)
5 Hz
(8 s)
1 x Door open
2 x Door open, no handle module taught (see setup for teach-in operation)
ap-
prox.
30 s
∞
1 x Error during teach-in
2 x
3 x Faulty handle module (e.g. error in code or code cannot be read)
DIA (red)
Self-test after power up
Door closed
Teach-in operation
Positive acknowledgment after completion of teach-in operation
Input error (e.g. missing test pulses, illogical switch state from previous switch)
invert-
ed
Key to symbols
X off
X off
X off
Important!
4 x
5 x Blocked handle module
5 Hz (8 s)
3 x
∞
X Any state
Output error (e.g. short circuits, loss of switching ability)
invert-
ed
Internal fault (e.g. component faulty, data error)
LED not illuminated
LED illuminated
LED flashes for 8 seconds at 5 Hz
LED flashes three times
LED flashes continuously
After the cause has been remedied, faults can generally be reset by opening and
closing the door. If the fault is still displayed afterward, use the reset function or
briefly interrupt the power supply. Please contact the manufacturer if the fault could
not be reset after restarting.
If you do not find the displayed device status in the System status table, this indicates an internal device fault. In this case, you should contact the manufacturer.
18
Operating Instructions ESL
Technical data
Note:
If a product data sheet is included with the product, the information on the data
sheet applies in case of discrepancies with the operating instructions.
Technical data for safety system ESL
Parameter Value Unit
Housing material Diecast aluminum, black powder coated
Dimensions See dimension drawing
Mass 0.4 kg
Ambient temperature
= DC 24 V
at U
B
Degree of protection IP 67
Safety class III
Degree of contamination 3
Installation position Any
Connection M12 plug connector, 8-pin
Operating voltage U
reverse polarity protected,
regulated, residual ripple < 5%)
For the approval according to
the following applies
Current consumption 40 mA
Switching load according to
External fuse
(operating voltage)
Safety outputs (FO1A/FO1B) Semiconductor outputs, p-switching, short circuit-proof
- Output voltage
HIGH
HIGH
LOW
Switching current per safety output 1 - 150 mA
Utilization category
according to EN IEC 60947-5-2
Monitoring output OD p-switching, short circuit-proof
- Output voltage
- Max. load - - 50 mA
Safe switch-off distance s
in door opening direction
Rated insulation voltage U
Rated impulse withstand voltage
U
imp
Rated short-circuit current
Resilience to vibration
Switching frequency - - 0.5 Hz
Repeat accuracy R ≤ 10 %
EMC protection requirements In acc. with EN IEC 60947-5-3
Switching delay
from state change
Difference time
between the two safety outputs
Reliability values acc. to EN ISO 13849-1
Category 4
Performance Level PL e
PFH
d
Mission time 20 years
1) Values at a switching current of 50 mA without taking into account the cable length.
2) An s
3) Corresponds to the risk time according to EN 60947-5-3. This is the maximum switch-off delay for the safety outputs after
pulling on the handle module.
min. typ. max.
- 20 - + 55 °C
(PELV,
B
Operation only with UL class 2 power supply according to
UL 1310, or equivalent measures
24 ± 15% V DC
DC 24 V, class 2
0.25 - 3 A
1)
U (FO1A)
U (FO1B)
-1.5 - U
U
B
B
U (FO1A/FO1B) 0 1
DC-13 24 V 100 mA
Caution: outputs must be protected with a free-wheeling diode in
case of inductive loads.
1)
ar
2)
i
0.8 x U
B
- U
B
- - 0 mm
- - 75 V
- - 0.8 kV
100 A
In acc. with EN IEC 60947-5-2
3)
- - 400 ms
- 10 - ms
-9
1.9 x 10
/ h
of 0 mm in door opening direction can be assumed for the calculation of characteristic safety values.
ar
V DC
V DC
19
Operating Instructions ESL
off
Shor
at FO1A/FO1B
or internal fault
Missing signal FI1A/FI1B
Pulling on handle module
Non-identical input state
at FI1A/FI1B
= Safety outputs active
off
Shor
at FO1A/FO1B
or internal fault
Missing signal FI1A/FI1B
Pulling on handle module
Non-identical input state
at FI1A/FI1B
= Safety outputs active
Typical system times
Ready delay: After switching on, the unit carries out a self-test for 8 s. The system
is ready for operation only after this time.
Risk time according to EN 60947-5-3: If a handle module moves outside the
operating distance, the safety outputs FO1A and FO1B on the corresponding interlocking module are deactivated after a maximum of 260 ms. If more than one device
is used, the value increases correspondingly (see System times for switch chains).
Difference time: The safety outputs FO1A and FO1B switch with a slight delay
in relation to each other. They have the same signal state at the latest after a
difference time of 10 ms.
System times for a single device
= Switch-off time
t
off
= Fault time/event
t
0
Important!
t circuit or cross circuit
t (ms)
t
=+ 300 mst
0
off
t
0
t
==+ 260 mst
0
off
t0+ 150 mst
Figure 6: System times for single device
System times for switch chains
The system times shown are maximum values for a circuit arrangement with
20 safety switches connected in series. Shorter times can also be achieved in
circuits with fewer switches.
= Switch-off time
t
off
= Fault time/event
t
0
t circuit or cross circuit
t (ms)
t
=+ 400 mst
0
off
t
0
t
==+ 360 mst
0
off
t0+ 250 mst
Figure 7: System times for switch chains
20
Operating Instructions ESL
42,5
4
85
3
12
Ordering information and accessories
Y-distributor 111696
485
3
2
6
Short circuit connector 097645
4-pin, plug
M12x1
Ø 14,5
Y-distributor 097627
6
15,1
( )
45°
Mx1
12
097627
Mx1
Ø 14,6
3
Plug Socket
5
4
1
Pin Function
1 U
B
2 OA (FO1A)
3 0 V
4 OB (FO1B)
5 RST
12
2
2
20,5
35,1
7
3
5
4
1
Pin Function
1 U
2 IA (FI1A)
3 0 V
4 IB (FI1B)
5 RST
1
x1
M12
15 15
41
3
Plug Socket
5
4
1
Pin Function
B
1 U
B
2 OA (FO1A)
3 0 V
4 OB (FO1B)
5 RST
7
x1
M12
45
200
33
A
B
44
x1
M12
15
2
2
3
5
4
1
Pin Function
1 U
B
2 IA (FI1A)
3 0 V
4 IB (FI1B)
5 RST
Designation Version Order
no.
Short-circuit plug M12, 4-pin, plug 097645
Y-distributor M12 with connection cable M12, 1x8-pin, 2x5-pin 111696
Y-distributor M12, 1x8-pin, 2x5-pin 097627
Connection cable PVC 8-core, flying
lead
M12, 8-core, 5 m 100177
M12, 8-core, 10 m 100178
M12, 8-core, 20 m 100179
Tip!
Additional accessories, particularly for series connection, can be found at www.
euchner.de.
21
Operating Instructions ESL
Inspection and service
Warning!
Loss of the safety function because of damage to the system.
In case of damage, the affected module must be replaced. Replacement of individual parts of a module (e.g. parts of the interlocking module) is not permitted.
Regular inspection of the following is necessary to ensure trouble-free long-term
operation:
Ì Check the switching function (see section Function test)
Ì Check the secure fastening of the devices and the connections
Ì Check for soiling
No servicing is required; repairs to the device are only allowed to be made by the
manufacturer.
Note:
The year of manufacture can be seen in the lower right corner of the rating plate.
Service
If service support is required, please contact:
EUCHNER GmbH + Co. KG
Kohlhammerstraße 16
D-70771 Leinfelden-Echterdingen
Service telephone:
+49 711 7597-500
E-mail:
info@euchner.de
Internet:
www.euchner.de
22
Operating Instructions ESL
Declaration of conformity
23
More than safety.
Euchner GmbH + Co. KG
Kohlhammerstraße 16
D-70771 Leinfelden-Echterdingen
info@euchner.de
www.euchner.de
Edition:
119138-04-04/14
Title:
Operating Instructions Safety Systems ESL-IH-AR
(translation of the original operating instructions)
Copyright:
© EUCHNER GmbH + Co. KG, 04/2014
Subject to technical modifications; no responsibility is accepted for the accuracy of this information.
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