Rockwell-automation 1769-IF4FXOF2F Compact Combination Fast Analog I/O Manual de usuario descargar pdf (Pagina 71)

Publication 1769-UM019A-EN-P - October 2008 71

Specifications Appendix A

Output Specifications

Attribute Value

Analog normal operating ranges

(1)

±10V DC

0…10V DC

0…5V DC

1…5V DC

0…20 mA

4…20 mA

Full scale analog ranges

(1)

±10.5V DC

-0.5…10.5V DC

-0.5…5.25V DC

0.5…5.25V DC

0…21 mA

3.2…21 mA

Number of outputs Two single-ended

Digital resolution across full range 13 bits unipolar, 13 bits plus sign bipolar

Conversion rate (all channels) max 1 ms

Step response to 63%

(2)

2.0 ms

Resistive load, current 0…500 Ω (includes wire resistance)

Resistive load, voltage 1 kΩ or greater

Max inductive load, current 0.1 mH

Max inductive load, voltage 1.0 uF

Field calibration None required

Overall accuracy

(3)

0.2% full scale @ 25 °C (77 °F)

Accuracy drift with temperature, current load ±0.0058% FS per °C

Accuracy drift with temperature, voltage load ±0.0086% FS per °C

Output ripple

(4)

range 0…50 kHz

(referred to output range)

±0.05%

Non-linearity (in percent full scale) ±0.05%

Repeatability

(5)

(in percent full scale)

±0.05%

Output error over full temperature range

[0…60°C (32…140°F)], current

±0.4% of full scale

Output error over full temperature range

[0…60°C (32…140°F)], voltage

±0.3% of full scale

Open and short-circuit protection Yes

Max short-circuit current 50 mA

Output overvoltage protection Yes

Rated working voltage 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)

Channel diagnostics High or Low Clamps Limit Exceeded, by status bit reporting

(1) The over- or under-range flag will come on when the normal operating range (over/under) is exceeded. The module will continue to convert the analog input up to the

maximum full scale range. The flag automatically resets when within the normal operating range unless configured to latch.

(2) Step response is the period of time between when the D/A converter was instructed to go from minimum to full range until the device is at 63% of full range.

(3) Includes offset, gain, drift, non-linearity and repeatability error terms.

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

(5) 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.

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