The SNAP-AOD-29 module provides two channels of time-proportional output (TPO). The module converts an analog value, such as a PID loop output, to a digital on/off output. The outputs are used to switch or control DC loads such as lamps or indicators, solenoids, relay coils, and PLC logic.
Each TPO channel can switch 0.5 A of load current ranging from 5 VDC to 60 VDC, over a period range of .25 seconds to 64.25 seconds.
If your application requires high-speed output, see the SNAP-AOD-29-HFi.
NOTE: The SNAP-AOD-29 module is not needed for intelligent remote SNAP I/O used with Allen-Bradley PLC systems (IO4AB). Instead, use the built-in TPO function in the brain itself.
Input
12-bit serial data (each channel)
Switched Output at 45 °C Ambient at 70 °C Ambient
5 to 60 Volts DC 0.5 A 0.2 A
TPO Resolution
12-bit Each bit = Period/4095 1 millisecond/bit default
Period Range
0.251 sec. to 64.25 sec. (0.251 sec for Ethernet-based I/O units) 0.251 seconds module default
Period Accuracy
± 0.5%
Period Resolution
.251 second
Inhibit Inputs On Off
4.0 Volts DC at 1.0 mA (32 Volts DC max. 1.0 Volt DC
Maximum Operating Common Mode Voltage
250 V
Common Mode Resistance
>1,000 Megohms
Timebase Temperature Coefficient
50 PPM/°C
Power Requirements
5 Volts DC (±0.15) @ 150 mA
Ambient Temperature: Operating Storage
-20 °C to 70 °C -40 °C to 85 °C
Torque, hold-down screws
4 in-lb (0.45 N-m)
Torque, connector screws
5.26 in-lb (0.6 N-m)
Wire size range
22 to 14 AWG
Agency Approvals
UL, FM, CE, RoHS, DFARS
Warranty
Lifetime