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> Safety expansion safety relay estop euchner plc cnc
Safety expansion safety relay estop euchner plc cnc
Safety expansion, type series ESM-ES3..
http:// /download/ba/085643_e.pdf
Control and monitoring using ESM-B... safety relay
3 positively driven safety contacts and redundancy
According to EN 60 204-1, EN 954-1 and VDE 0113-1
Using the ESM-ES3.. safety expansion in conjunction with any ESM-B... safety relay, up to 3 additional safety paths can be created
per expansion. In this way an existing system can be modularly expanded as required. Control is via a safety contact on the safety
relay; the safety expansion provides door auxiliary contacts for error monitoring.
The ESM-ES3.. safety expansion is connected to the ESM-B...
safety relay using only 4 wires: a safety contact in the safety
relay controls the relay in the expansion, two wires are needed
cables are detected as well as internal errors.
Any number of expansions can be connected to a safety relay
such that the number of safety contacts can be adapted to suit
the specific requirement. Thus, for example, on the expansion
of a system with components that represent an additional danger
area, it is very straightforward to ensure that people remain
protected by adding an expansion.
The safety expansion was designed so that in conjunction with an
ESM-B... safety relay, it complies with the requirements of
EN60204-1 EMERGENCY STOP devices, STOP category 0, as
well as the stipulations of EN954-1 up to safety category 3. Independent
operation without a safety relay is not possible. As per
EN 60204-1, the device is intended for installation in control
cabinets with a minimum degree of protection of IP 54.
The ESM-ES3.. safety expansion has relays with positively driven
contacts so that error states can be detected by the safety relay
via the door auxiliary contacts S23-S24. The relay is controlled
using terminals S15 and S16. A further function unit generates a
control voltage of 24V at terminal S11; this voltage is connected
to the controlling safety contact on the safety relay. The power
supply is provided using terminals A1 and A2.
http:// /download/ba/085643_e.pdf
Housing material Plastic PA6.6
B = AC 115/230 V - 15 - + 40 °C
Degree of protection according to IEC/EN 60529 IP 20
Mounting 35 mm DIN rail according to DIN EN 50022-35
Type of connection Screw terminals
B ESM-ES301 24 ± 10% (via isolating transformer in according to IEC / EN 61 558-1) AC/DC V
Rated supply frequency 50 - 60 Hz
Power consumption approx. 4 VA
Control cable length (with cross-section 0.75 mm²) - - 1000 m
- Cumulative current of all contacts - - 12 A
- Cumulative current on all contacts in according to UL
at AC/DC 24 V, AC 120 V, AC 240 V
- Switching voltage AC - - 250 AC V
- Switching voltage DC - - 50 DC V
- Breaking capacity AC - - 1,500 VA
- Breaking capacity DC (in utilization category DC-13) - - 30 W
- Switching current at 24 V 20 - - mA
- Utilization category according to IEC/EN 60947-5-1 AC-15 4A 230V / DC-13 2A 24V
AC-12 6A 250V / DC-12 1.25A 24V
- Breaking capacity in according to UL 6A 250 AC V / 2A 24 DC V per contact
use only as monitoring contact for safety relay
Contact fuses (control circuit fuse) T 4 / F 6 A
Reverse polarity protection at version U
Rated impulse withstand voltage U
Leakage path/air gap acc. to DIN VDE 0110-1:1997-04 4 kV
In compliance with EN 60 204-1: 1998 / EN 954-1: 1996 / VDE 0113 part 1: 1998-11
LEDs 2, status displays for relays K1 and K2
