EUCHNER ESM-BT4 Series - Manual (Page 3)

User Information
3
EUCHNER GmbH + Co. KG Kohlhammerstraße 16 D-70771 Leinfelden-Echterdingen Tel. +49/711/75 97-0 Fax +49/711/75 33 16 www.euchner.de [email protected]
Safety Relay, Series ESM-BT4..
Maintenance
Device cannot be switched on again after an emergency
stop:
• Check whether the emergency stop circuit was closed
again.
• Was the start button opened before closing of the emer-
gency stop circuit (with manual start)?
• Is the feedback loop closed?
If the fault still exists, perform the steps listed under
“Commissioning 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.
What to Do in
Case of a Fault?
The device must be checked once per month for proper
function and for signs of tampering and bypassing of the
safety function (to do this, check the wiring of the device
and activate the emergency stop function. Check the delay
time). The device is otherwise maintenance free, provided that it
was installed properly.
Note:
Additional data can be requested from the manufacturer for
applications that deviate from these conditions. Safety
Characteristics
According to
EN ISO 13849-1
The device is certified according to EN ISO 13849-1 up to a
Performance Level of PL e.
Techn. Data Operating voltage AC/DC 24V
Rated supply frequency 50 - 60 Hz
Permissible deviation +/- 10%
Power consumption DC 24V AC 24V
approx. 4.7W approx. 5.3VA
Control voltage at S11 DC 24V
Control current approx. 190mA
Response delay after actuation of the buttons < 20ms
Safety contacts 4 NO contacts (3n/1d, 2n/2d, 1n/3d)
Max. switching voltage AC 250V
Safety contact breaking capacity AC: 250V, 2000VA, 8A for omic load
250V, 3A for AC-15
DC: 50V, 8A for omic load
24V, 3A for DC-13
Max. cumulative current on the safety contacts 15A *
Time delay
ESM-BT4.. 1 ... 30s, continuously adjustable
ESM-BT4..-20S 2s fixed
ESM-BT4..-50S 5s fixed
Minimum contact load 24V, 20mA
Contact fuses T6A, F8A, 10A gG
Line cross section 0.14 - 2.5mm 2
Max. length of control line 1000m at 0.75mm 2
Contact material AgSnO 2
Contact service life mech. approx. 1 x10 7 , electr. 1 x 10 5 operating cycles
Test voltage 2.5kV (control voltage/contacts)
Rated impulse withstand voltage, leakage path/air gap; 4kV (DIN VDE 0110-1)
Rated insulation voltage 250V
Degree of protection IP20
Degree of contamination 2 (DIN VDE 0110-1)
Overvoltage category 3 (DIN VDE 0110-1)
Temperature range -15°C ... +40°C
Weight approx. 250g
Mounting DIN rail according to EN 60715TH35
Device does not switch on:
• Check the wiring by comparing it to the wiring diagrams.
• Check the safety switch used for correct function and
adjustment.
• Check whether the emergency stop circuit is closed.
• Check whether the start button (with manual start) is
closed.
• Check the operating voltage at A1 and A2.
• Is the feedback loop closed?
*) If several ESM-BT4.. devices are closely spaced under load, the max. total current at the ambient temperature of T=20°C: 9A; at T=30°C: 3A; at T=40°C =1A.
If these currents are exceeded, a spacing of 5 mm between the devices must be observed.
Safety characteristics according to EN ISO 13849-1 for all variants of ESM-BT4
Load (DC-13; 24V) <= 0,1A <= 1A <= 2A
T10d [years] 20 20 20
Category:
Time-delay
Non-time-delay
3
4 3
4 3
4
PL e e e
PFHd [1/h]:
Time-delay
Non-time-delay
8,84E-08
4,22E-08 8,84E-08
4,22E-08 8,84E-08
4,22E-08
nop [cycle / year] <= 500.000 <= 350.000 <= 100.000