Rockwell Automation 1791DS-IB16 CompactBlock Guard I/O DeviceNet Safety Module User Manual
Page 22
22 CompactBlock Guard I/O DeviceNet Safety Modules
Publication
1791DS-IN002C-EN-P - April 2009
EFT/B immunity
IEC 61000-4-4:
±2 kV at 5 kHz on power ports
±2 kV at 5 kHz on signal ports
±2 kV at 5 kHz on communication ports
Surge transient
immunity
IEC 61000-4-5:
±1 kV line-line (DM) and ±2 kV line-earth (CM)
on power ports
±1 kV line-line (DM) and ±2 kV line-earth (CM)
on signal ports
±2 kV line-earth (CM) on communication ports
Reaction Time
Input reaction time,
max
16.2 ms + set values of ON/OFF delays
Output reaction time,
max
6.2 ms + (20 ms) relay response time (1791DS-IB8XOBV4 module
only)
Typical Signal Sequence
Environmental Specifications
Attribute
Value
Typ. 600 ms
44072
While safety outputs are in an on state, the signal sequence shown in the figure is
output continuously for fault diagnosis when output pulse testing is enabled.
Confirm response time of device connected to safety outputs so the device does not
malfunction due to off pulse.
Typ. 700
μs