Rockwell Automation 1762-OB16 Solid State 24V dc Source Output Module - Manual (Page 12)

12 Solid State 24V DC Source Output Module
Publication 1762-IN011B-EN-P - June 2013
Sourcing Output - Source describes the current flow between the I/O module and the field
device. Sourcing output circuits supply (source) current to sinking field devices. Field devices
connected to the negative side (DC Common) of the field power supply are sinking field devices.
Field devices connected to the positive side (+V) of the field supply are sourcing field devices.
Typical Loading Resistor - To limit the effects of leakage current through solid-state outputs, a
loading resistor can be connected in parallel with your load. Use a 5.6k ohm, 1/4 W resistor for
transistor outputs, 24V DC operation.
Recommended Surge Suppression - Use a 1N4004 diode reverse-wired across the load for
transistor outputs switching 24V DC inductive loads. For additional information, refer to
Industrial Automation Wiring and Grounding Guidelines, Allen-Bradley publication
1770-4.1 .
Output Specifications
Specification Value
Voltage Category 24V DC
Operating Voltage Range 20.4…26.4V DC
Number of Outputs 16
Bus Current Draw, max 175 mA @ 5V DC (0.88 W)
Heat Dissipation max 2.9 total Watts @ 30 °C (86°F)
2.1 total Watts @ 55 °C (131 °F)
Signal Delay (max.) – resistive load turn-on = 0.1 ms
turn-off = 1.0 ms
Off-State Leakage max 1.0 mA
On-State Current (min.) 1.0 mA
On-State Voltage Drop, max 1.0V DC
Continuous Current per Point, max 0.5A @ 55 °C (131 °F)
1.0A @ 30 °C (86 °F)
Continuous Current per Module, max 4.0A @ 55 °C (131 °F)
8.0A @ 30 °C (86 °F)
Surge Current, max 2.0 A (Repeatability is once every 2 s @ 55 °C (131 °F), once every
second @ 30 °C (86 °F) for a duration of 10 ms.)
Power Supply Distance Rating 6 (The module may not be more than 6 modules away from the power
supply.)
Isolated Groups Group 1: Outputs 0 …15
Output Group to Backplane Isolation Verified by one of the following dielectric tests: 1200V AC for 1 s or
1697V DC for 1 s.
75V DC working voltage (IEC Class 2 reinforced insulation)
Vendor I.D. Code 1
Product Type Code 7
Product Code 103