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14
Description of Safety Functions
Section 1-4
Dual Channels, Complementary
The status is treated as normal when one channel is ON and the other chan-
nel is OFF. When both channels are ON or both channels are OFF, it is treated
as an error, and the safety input data and the individual safety input status will
turn OFF for both inputs.
Error Recovery
All conditions below are necessary to recover from an error that has occurred
in a safety input.
• The cause of the error must be removed.
• The error latch time must have passed.
• The input signal must return to an inactive state and there must be no error condition
detected. (e.g., by pressing the emergency stop switch or opening a door)
IN0
IN1
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Discrepancy time
Remote
I/O data
IN0
IN1
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Discrepancy time
Remote
I/O data
* Error
Error
Safety input 0
Safety input 1
Status of safety
inputs 0 and 1
Safety input 0
Safety input 1
Status of safety
inputs 0 and 1
* Normal
Содержание DST1-ID12SL-1
Страница 1: ...OPERATION MANUAL Cat No Z904 E1 06 DeviceNet Safety DST1 series Safety I O Terminals...
Страница 2: ......
Страница 3: ...DST1 series Safety I O Terminals Operation Manual Revised June 2011...
Страница 4: ...iv...
Страница 10: ...x...
Страница 14: ...xiv...
Страница 110: ...86 Remote I O Allocations Section 3 2...
Страница 116: ...92 Indicators Section 4 2...
Страница 134: ...110 DST1 XD0808SL 1 Section 5 4...
Страница 146: ...122 Maintenance Section 7 4...
Страница 159: ...135 Logic Terminal Wiring Examples Section 8 3...
Страница 160: ...136 Logic Terminal Wiring Examples Section 8 3...
Страница 178: ...154 Index...
Страница 181: ...157 Revision History...