2
Operating Instructions
Safety Relay ESM-BA3..
What to do in case of a fault?
Device does not switch on:
f
Check the wiring by comparing it to the wiring
diagrams.
f
Check the safety switch used for correct function
and adjustment.
f
Check whether the emergency stop circuit is
closed.
f
Check whether the start button (with manual start)
is closed.
f
Check the operating voltage at A1 and A2.
f
Is the feedback loop closed?
Device cannot be switched on again after an
emergency stop:
f
Check whether the emergency stop circuit was
closed again.
f
Was the start button opened before closing of the
emergency stop circuit (with manual start)?
f
Is the feedback loop closed?
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.
EU declaration of conformity
The declaration of conformity is part of the operating
instructions, and it is included as a separate sheet
with the device.
The EU declaration of conformity can also be found
at: www.euchner.com
Service
If servicing is required, please contact:
EUCHNER GmbH + Co. KG
Kohlhammerstraße 16
70771 Leinfelden-Echterdingen
Germany
Service telephone
:
+49 711 7597-500
:
Internet
:
www.euchner.com
Technical data
Parameter
Value
Version
ESM-BA301
ESM-BA302
ESM-BA303
Operating voltage
AC/DC 24 V
AC 115V
AC 230 V
Rated supply frequency
50 - 60 Hz
Permissible deviation
± 10%
Power consumption
DC 24 V
AC 230 V
Approx. 2.3 W
Approx. 6.9 VA
Control voltage at S11
DC 24 V
Control current S11 … S14
Approx. 60 mA
Safety contacts
3 NO contacts
Monitoring contacts
1 NC contact
Max. switching voltage
AC 250 V
Safety contact breaking capacity
(13-14, 23-24, 33-34)
AC: 250 V, 2,000 VA, 8 A for ohm resistive load (6 operating cycles/minute)
250 V, 3 A for AC-15
DC: 40 V, 320 W, 8 A for ohm resistive load (6 operating cycles/minute)
24 V, 3 A, for DC-13
Max. cumulative current
15 A (13-14, 23-24, 33-34)
1)
Monitoring contact breaking capacity
(41-42)
AC: 250 V, 500 VA, 2 A for ohm resistive load
DC: 40 V, 80 W, 2 A for ohm resistive load
Minimum contact load
24 V, 5 mA
Contact fuses
10 A gG
Conductor cross-section
0.14 - 2.5 mm²
Max. length of control cable
1,000 m with 0.75 mm²
Contact material
AgSnO
2
Mech. contact life
Approx. 1 x 10
7
Test voltage
2.5 kV (control voltage/contacts)
Rated impulse withstand voltage,
leakage paths/air gaps
4 kV (DIN VDE 0110-1)
Rated insulation voltage
250V
Degree of protection
IP20
Temperature range
-15 °C to +40 °C
1)
Degree of contamination
2 (DIN VDE 0110-1)
Overvoltage category
3 (DIN VDE 0110-1)
Weight
Approx. 230 g
Mounting
Mounting rail according to DIN EN 60715 TH35
Reliability values according to EN ISO 13849-1 for all variants of the series ESM-BA3
2)
Load (DC-13; 24 V)
≤ 0.1 A
≤ 1 A
≤ 2A
n
op
≤ 500,000 cycles
≤ 350,000 cycles
≤ 100,000 cycles
T
10D
20 years
Category
4
PL
e
PFH
D
1.2 x 10
-8
1/h
1) If several ESM-BA3.. are closely spaced under load, the max. cumulative current is 9 A at an ambient temperature of T = 20 °C, 3 A
at T = 30 °C and 1 A at T = 40 °C. If these currents are exceeded, a spacing of 5 mm between the devices must be observed.
2) Additional data can be requested from the manufacturer for applications that deviate from these conditions.
Fixed terminals
Plug-in terminals
Fig. 4: Dimension drawing for ESM-BA3..
