2.5.4 Safety-related devices
2.5.4.1 Emergency Stop button
Characteristics Value
Switchable nominal voltage
Switchable nominal current
24VDC ± 25%
2A (DC-12 resistive load)
1A (DC-13 inductive load)
Reliability:
• Mechanical life
• Electrical life
• Maximum operating frequency
250000 operations minimum
250000 operations minimum
900 operations/hour
2.5.4.2 Enabling device
Characteristics Value
Switchable nominal voltage
Switchable nominal current
24VDC ± 25%
1A (DC-12 resistive load)
0.7A (DC-13 inductive load)
Reliability:
• Mechanical life
• Electrical life
• Maximum operating frequency
Position1→2:1000000operationsminimum
Position1→2→3→1:100000operationsminimum
100000 operations minimum
1200 operations/hour
2.5.4.3 State Selector
Characteristics Value
Switchable nominal voltage
Continuous (Non-switching) current
capacity
24VDC ± 25%
200mA
Reliability:
• Electrical life 25000 operations minimum