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Rockwell Automation 1769-OF2 Compact I/O Analog Modules User Manual

Page 140

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Publication 1769-UM002B-EN-P - July 2005

A-10 Specifications

Specification

1769-OF8C

Accuracy Drift with
Temperature

±0.0058% FS per °C

Output Ripple

(1)

range 0 to 50 kHz
(referred to output range)

±0.05%

Non-linearity (in percent full
scale)

±0.05%

Repeatability

(2)

(in percent full scale)

±0.05%

Output Error Over Full
Temperature Range
(0 to 60°C [+32 to +140°F])

Current: ±0.55%

Output Offset Error
(0 to 60°C [+32 to +140°F])

±0.05%

Output Impedance

>1 M

Open and Short-Circuit
Protection

Yes

Maximum Short-Circuit Current 21 mA

Output Overvoltage Protection

Yes

Time to Detect Open Wire
Condition

5 ms

Output Response at System
Power Up and Power Down

± 0.5V dc spike for < 5 ms

Rated Working Voltage

(3)

30V ac/30V dc

Output Group to Bus Isolation

500V ac or 710V dc for 1 minute (qualification test)

30V ac/30V dc working voltage (IEC Class 2 reinforced
insulation)

Module OK LED

On: module has power, has passed internal diagnostics,
and is communicating over the bus.

Flashing: external power failure.

Off: Any of the above is not true.

Channel Diagnostics

Over- or under-range by bit reporting

output wire broken or load resistance high by bit
reporting

(1)

Output ripple is the amount a fixed output varies with time, assuming a constant load and temperature.

(2)

Repeatability is the ability of the output module to reproduce output readings when the same controller value is applied to it
consecutively, under the same conditions and in the same direction.

(3)

Rated working voltage is the maximum continuous voltage that can be applied at the input terminal, including the input
signal and the value that floats above ground potential (for example, 10V dc input signal and 20V dc potential above ground).