Safety Module Manual

CompactBlock Guard I/O DeviceNet Safety Modules 19
Publication
1791DS-IN002C-EN-P - April 2009
Leakage current
±1.0 mA
(1)
Internal resistance from
PtoM terminal
3.25 kΩ
Short circuit detection Yes (short high and low and cross-circuit fault detect)
Short circuit protection Electronic
Aggregate current of
outputs per module
8 A @ 40 °C
6 A @ 60 °C
Pilot duty rating 2.5 A inrush (1791DS-IB8XOBV4 module only)
Number of outputs 4 dual channel
(1)
Includes the presence of a single P stuck-high or M stuck-low short.
General Specifications
Attribute Value
North American temp code T4A
Enclosure type rating Meets IP20
Communication power
supply voltage
11…25V DC (supplied from communication power supply)
Communication current
consumption
85 mA at 24V DC
Operating voltage range 19.2…28.8V DC (24V DC, -20…20%)
Isolation voltage 1791DS-I8XOBV4 module - 50V (continuous), basic
insulation
Tested at 800V DC for 60 s, between input and output
channels, and between network and I/O channels
1791DS-IB16 module - 50V (continuous), basic insulation
Tested at 800V DC for 60 s, between network and input
channels
Guard I/O DeviceNet Safety Module - 1791DS-IB8XOBV4, 1791DS-IB16
Attribute Value