Euchner Control Box ECB
- Safe entry into hazardous areas
- Can be used as a trapped key system or as a safe lockout bar
- Two key adapters installed in housing
- Integrated evaluation unit with two safe relay outputs
- Transponder-coded keys (unique)
- Connection of the ECB via 1 x M12/8-pin plug connector
Description
Note
Keys are included
Functional description
In combination with a control system, the Euchner Control Box allows dangerous machine movements to be performed as long as all valid unique, transponder-coded keys (CKS keys) are inserted. If at least one CKS key is removed during operation, the two safety contacts are switched off and a stop command is triggered. The safety contacts remain switched off when the CKS key is removed. The installation cannot be restarted.
Function as lockout bar
When the CKS keys are removed from an ECB device up to two persons can access the hazardous area for servicing. As long as the operator carries the CKS key with him, there is no hazard for the operator due to unexpected machine start-up or being locked into the machine unintentionally. The ECB therefore performs the function of a safe lockout bar. The system can fulfill its safety function only if the users always carry their CKS keys with them when accessing the machine.
Function as trapped key system
When the CKS key is removed, the operator can enter the hazardous area safely and can use the same CKS key to start local machine functions via another ECB device.
Safety characteristics according to EN ISO 13849-1
Monitoring of the CKS keys (prevention of unexpected start-up of a machine when the key is removed) Category 4 Performance Level (PL) e
Connector assignment
| Plug connector (view of connection side) | Pin | Designation | Function |
|---|---|---|---|
 | X 1.1 | 13 | Enable input for channel 1 |
| X 1.2 | UB | Operating voltage, 24 V DC | |
| X 1.3 | 24 | Safety output, channel 2 | |
| X 1.4 | 14 | Safety output, channel 1 | |
| X 1.5 | n.c. | - | |
| X 1.6 | 23 | Enable input for channel 2 | |
| X 1.7 | 0 V UB | Operating voltage, 0 V DC | |
| X 1.8 | n.c. | - |
Connection examples
| 1 | X1: connection to PLC |
| 2 | Cable outlet C (left) |
| 3 | Cable outlet A (right) |
Connection examples
Technical data
Electrical connection values
| Fuse | |
| external (safety circuit) according to EN 60269-1 | 6 A (6 AgG or 6 A circuit breaker (characteristic B or C)) |
| external (operating voltage UB) | 0.4 ... 8 A |
| rated conditional short-circuit current | 100 A |
| Rated insulation voltage Ui | 75 V |
| Rated impulse withstand voltage Uimp | 0.8 kV |
| Operating voltage DC | |
| UB | 21 ... 24 ... 27 V DC (regulated, residual ripple<5%) |
| Discrepancy time | |
| between the operating points of both safety relays | max. 25 ms |
| EMC protection requirements | EN 60947-5-3 |
| Utilization category | |
| DC-12 | 30 V 0.3 A |
| DC-13 | 24 V 1.5 A |
| AC-12 | 30 V 1.5 A |
| DC-12 | 30 V 1.5 A |
| AC-12 | 30 V 0.3 A |
| Switching current | |
| Relay outputs at switching voltage AC/DC 5 ... 30 V | 10 ... 1500 mA |
| Safety class | III |
| Current consumption | |
| with relay energized | 150 mA |
| Degree of contamination (external, according to EN 60947-1) | 3 |
Mechanical values and environment
| Dimensions | 160 x 160 x 150 |
| Connection type | 1 x plug connectors M12, 8-pin |
| Number of safety inputs | 2 (relays with internally monitored contacts) |
| Ready delay | 10 ... 12 s (After the operating voltage is switched on, the relay outputs are switched off and the monitoring outputs are set to LOW level during the ready delay. For visual indication of the delay, the green STATE LED flashes at a frequency of approx. 15 Hz.) |
| Atmospheric humidity | |
| not condensing | max. 80 % rH |
| Shock and vibration resistance | Acc. to EN IEC 60947-5-3 |
| Degree of protection | IP65 |
| Ambient temperature | -20 ... +45 °C |
| Material | |
| Housing | Stainless steel 1.4301 |
| Housing seal | Silicone |
Characteristic values according to EN ISO 13849-1 and EN IEC 62061
| Monitoring of the CKS keys | |
| Number of switching cycles | |
| ≤ 0.1 A | 760000 1/y |
| ≤ 1 A | 153000 1/y |
| Diagnostic Coverage (DC) | 99 % |
| Mission time | 20 y (This value is dependent on the number of switching cycles and the switching current.) |
| Category | 4 (This value is dependent on the number of switching cycles and the switching current.) |
| Performance Level | PL e (This value is dependent on the number of switching cycles and the switching current.) |
| PFHD | |
| ECB | 1.9 x 10-8 (This value is dependent on the number of switching cycles and the switching current.) |
Miscellaneous
| The following applies to the approval according to UL | Operation only with UL Class 2 power supply or equivalent measures |
Accessories
Downloads
Complete package
Download all important documents with a single click.
Content:
- The operating instructions and any additions to the operating instructions or brief instructions
- Any data sheets to supplement the operating instructions
- The declaration of conformity
Single Documents
Other Documents
Ordering data
| Ordernumber | 160398 |
| Item designation | ECB-A-2K-A2-160398 |
| Gross weight | 3,285kg |
| Customs tariff number | 85365019000 |
