SNAP-AOA-28 SNAP 2-Ch 0-20 mA Current Loop Analog Output Module |
channels are not isolated from each other, the module is transformer isolated and optically isolated from other modules
and devices. The module is factory calibrated.
Part of the SNAP PAC System, the module mounts on a SNAP PAC rack with a SNAP PAC brain or rack-mounted
controller. Analog, digital, and serial I/O modules can all be on the same rack. Such an I/O unit is also well suited for
PC-based control or for use as intelligent remote I/O for an Allen-Bradley MicroLogix or other RSLogix-based PLC
system, such as ControlLogix or CompactLogix.
Input | 12-bit serial data (each channel) | ||||
Outputs | 0 to 20 mA (each channel) | ||||
Span | 20 mA | ||||
Resolution | 4.9 microamps | ||||
Response Time (% of span/delta I/ delta time) | 99.9%/15.98 mA/3 mS | ||||
DC Common Mode Rejection | >-120 dB | ||||
AC Common Mode Rejection | >-120 dB @ 60 Hz | ||||
Maximum Operating Common Mode Voltage | 250 V | ||||
Common Mode Resistance | >1000 Megohms | ||||
Accuracy | 0.1% of Span | ||||
Gain Temperature Coefficient | 50 PPM/°C | ||||
Offset Temperature Coefficient | 20 PPM/°C | ||||
Module Power Requirements | 5 Volts DC (±0.15) @ 150 mA | ||||
Loop Power Requirements | 8 Volts DC (min) to 32 Volts DC (max) | ||||
Max. Loop Resistance (Ohms) @ Loop Supply | 250 8V | 450 8V | 650 12V | 1050 24V | 1450 32V |
Max. Loop Resistance formula | (Loop Voltage - 3) 0.02 | ||||
Ambient Temperature: Operating Storage | 0 °C to 70 °C -25 °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) | ||||
Agency Approvals | UL, CE, FM, RoHS, DFARS | ||||
Warranty | Lifetime |
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