Manual 26166V1 MicroNet Simplex & MicroNet Plus
Woodward 118
Table 9-6. 4–20 mA Output Ratings
Number of channels: 4
Update time: 5 ms
Output Driver: linear
Filter: 1 pole at 1ms plus 1pole at 0.25ms
Current output: 4–20 mA
Current output range: 0-25 mA
Isolation: 500 Vrms galvanic isolation to earth ground and control common, no
galvanic isolation between channels
Max load resistance: 600 ohms (load + wire resistance)
Resolution: 14 bits
Accuracy: Software calibrated to 0.2% of 0-25 mA full scale
Temperature drift: 125 ppm/C, maximum
Source read back isolation: 60 dB CMRR, 200 Vdc common mode voltage rejection
Read backResolution:
Source: 12 bits
Return: 8 bits
Read back Accuracy:
Source: 0.5% of 0-25 mA full scale
Return: 1% of 0-25 mA full scale
Read back temp drift: 400 ppm/C, maximum
Note:
AI and AO readback accuracy may be affected if the control is placed in a high electrical noise
environment.
Two versions of the Speed/AIO Combo are available:
Standard Accuracy (5466-1115), primarily intended for Steam Turbine markets. This unit can be
used to replace the 5466-253 and -316 in systems where actuation is controlled separately.
High Accuracy (5466-1105), primarily intended for Gas Turbine markets.
These modules utilize new GAP blocks and require Coder 5.08 or later (Steam) or Coder MicroNet 1.00
or later (Gas Turbine).
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