Woodward ProTech TPS, Руководство по эксплуатации продукта

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Manual 26710V1 ProTechTPS Total Protection System
Woodward 67
Configurable Input Specifications
General Specifications
Number of Channels 10, user configurable for individual analog or
discrete input mode
Signal Cable Length Must be limited to 1000 ft / 305 m (low capacitance
16 AWG / 1.3 mm²)
Analog Input Mode
Input Current Range 0 to 25 mA
Common Mode Rejection 45 dB at 60 Hz
Input Common Mode Range ±40 V
Input Impedance
200

±1%
Resolution 12 bit
Accuracy ±0.25% of 25 mA at 25 °C,
(note 1)
±0.5% of 25 mA over-temperature
Analog Input Fail Thresholds Fixed at 2 mA and 22 mA
Isolation 500 Vac from input to chassis and input to
all other circuits, not galvanically isolated to
other channels in analog mode. Faults or
signals on one channel will not affect other
channels.
Anti-aliasing Filter 2 poles at 500 Hz

Loop power is not provided by the ProTechTPS

Shielded twisted pair cable is required when connecting to the analog
inputs.
Note 1: ±0.25% represents the pk-pk noise of the input. The average accuracy is
±0.1% of 25 mA.
Discrete Input Mode
Input Thresholds <= 6 Vdc = “OFF”
>= 12 Vdc = “ON”
Input Current
5 mA ±5% at 24 V (5 k

input impedance)
Wetting Current Supply 24 V at 2 W available (see installation diagrams,
Chapter 2). This power supply is current limited.
Max Input Voltage 32 V
Isolation 500 Vac from input to chassis. In discrete mode,
the discrete input shares a common internal ground
with the other channels that are in discrete mode.
Table 3-5. Configurable Input Specifications