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Idiomas disponibles
Operating Instructions
2-Hand Safety Relay ESM-2H2..
Electrical connection
When the 24 V version is used, a safety transform-
f
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
f
provided.
A maximum length of the control lines of 1,000 m
f
with a conductor cross-section of 0.75 mm² must
not be exceeded.
The conductor cross-section must not exceed
f
2.5 mm².
If the device does not function after setup, it must
f
be returned to the manufacturer unopened. Open-
ing the device will void the warranty.
A suppressor circuit suitable for inductive loads
f
(e.g. free-wheeling diode) is to be provided.
A1
Power supply
A2
Power supply
S11
Control line T1
S12
Control line T1
S13
Control line T1
S21
Control line T2
S22
Control line T2
S23
Control line T2
X1, X2 Feedback loop
13-14
Safety contact 1
23-24
Safety contact 2
Fig. 3: Connections
Setup procedure
Notice
The items listed under Electrical connection must
be observed during commissioning.
1. Wiring ESM-2H2.. to two-hand buttons:
Wire the ESM-2H2.. to the two-hand buttons as
per Fig. 5.
2. Wiring feedback loop:
If your application provides for external contactors
or expansion modules, connect them to the device
according to Fig. 6.
3. Wiring power supply:
Connect the power supply to terminals A1 and A2
(see Fig. 7).
Attention: Wiring only in de-energized state.
4. Starting the device:
Switch the operating voltage on.
5. Switching to the operating status:
Actuate the two buttons T1 and T2 simultaneously,
or within 0.5 s.
The positively driven relays switch on.
6. Switching to the idle status:
Release the two buttons T1 and T2.
The positively driven relays switch off.
What to do in case of a fault?
Device does not switch on:
Check the wiring by comparing it to the wiring
f
diagrams.
Check the two-hand buttons used for correct
f
function and adjustment.
Check the operating voltage at A1 and A2.
f
Is the feedback loop closed or a jumper fitted?
f
Device cannot be switched on again after an
emergency stop:
Check the two-hand buttons used for correct
f
function.
Check the wiring (short circuits or similar?)
f
Is the feedback loop closed?
f
If the fault persists, perform the steps listed under
Setup procedure.
If these steps do not remedy the fault either, return
the device to the manufacturer for examination.
Opening the device is impermissible and will
void the warranty.
Maintenance
The device must be checked once per month for
proper function and for signs of tampering and
bypassing of the safety function. The device is
otherwise maintenance-free, provided that it was
installed properly.
Disposal
Pay attention to the applicable national regulations
and laws during disposal.
Technical data
Parameter
Version
Operating voltage
Rated supply frequency
Permissible deviation
Power consumption
Control voltage at S12/S13 and S22/S23
Control current (both buttons)
Release time of the safety relay after
releasing a button
Response delay after actuation of the
buttons
Synchronization time
Safety contacts
Max. switching voltage
Breaking capacity
Max. cumulative current of the safety
contacts
Minimum contact load
Contact fuses
Conductor cross-section
Tightening torque (min./max.)
Max. length of control line
Contact material
Mech. contact life
Test voltage
Rated impulse withstand voltage, leakage
paths/air gaps
Rated insulation voltage
Degree of protection
Temperature range
Degree of contamination
Overvoltage category
Weight
Mounting
Characteristics according to EN ISO 13849-1 for all variants of the series ESM-2H2
Load (DC-13; 24 V)
n
op
T
10D
Category
PL
PFH
D
1) Additional data can be requested from the manufacturer for applications that deviate from these conditions.
5
Declaration of conformity
The EU declaration of conformity can be found at
www.euchner.com. Enter the order number of your
device in the search box. The document is available
under Downloads.
Service
If servicing is required, please contact:
EUCHNER GmbH + Co. KG
Kohlhammerstraße 16
70771 Leinfelden-Echterdingen
Germany
Service telephone:
+49 711 7597-500
E-mail:
support@euchner.de
Internet:
www.euchner.com
Value
ESM-2H201
ESM-2H202
AC/DC 24 V
AC 115 V
50 - 60 Hz
± 10%
DC 24 V
Approx. 1.5 W
DC 24 V
Approx. 2 x 40 mA
< 20 ms
< 20 ms
< 0.5 s
2 NO contacts
AC 250 V
AC: 250 V, 1,500 VA, 6 A for ohm resistive load (6 operating cycles/min)
250 V, 3 A for AC-15
DC: 24 V, 144 W, 6 A for ohm resistive load (6 operating cycles/min)
24 V, 3 A, for DC-13
12 A
5 V, 10 mA
10 A gG
0.14 - 2.5 mm²
0.5 Nm/0.6 Nm
1,000 m with 0.75 mm²
AgSnO
2
Approx. 1 x 10
2.5 kV (control voltage/contacts)
4 kV (DIN VDE 0110-1)
250 V
IP20
DC 24 V: -15 °C to +60 °C
AC 230 V/115 V/24 V: -15 °C up to +40 °C
2 (DIN VDE 0110-1)
3 (DIN VDE 0110-1)
Approx. 230 g
Mounting rail according to DIN EN 60715 TH35
1)
≤ 0.1 A
≤ 1 A
≤ 400,000 cycles
≤ 100,000 cycles
20 years
4
e
1.2 x 10
1/h
-8
ESM-2H203
AC 230 V
AC 230 V
Approx. 3.7 VA
7
≤ 3 A
≤ 22,500 cycles
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