Woodward ProTech-GII, Руководство по эксплуатации продукта

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Manual 35086 ProTech-GII with Math Functions
Woodward 35
A PE (Protective Earth) ground wire for the enclosure must be
provided and connected to PE Ground. At least one of the
enclosure’s PE labeled connection points must have a wire going
from the enclosure to a building PE ground point. This wire must be
of sufficient gauge to handle the rated current of all the interposing
relay wires or 1.5 mm
2
(16 AWG), whichever is larger.
Input/Output Specifications
Speed Input Specifications
Table 2-4. General I/O Specifications
Number of Inputs
1, selectable as passive or active probe by front panel
configuration
Speed Sensing Accuracy
Accuracy: ±0.04% of current speed over –20 to +60 °C ambient
temperature
Acceleration Sensing Accuracy
and Range
Accuracy: ±1% of current speed
Detectable over-acceleration range: 0 to 25000 RPM/s
Signal Cable Length
Must be limited to 1500 ft /457 m (low capacitance
16 AWG / 1.3 mm²)
Internal Test Frequency Generator
6 Hz to 32 kHz, selectable in different test modes, see Chapter 4,
Configuration and Operation
Table 2-5a. Passive Probe Specifications
Input Frequency
Passive Probe (MPU): 100 Hz to 32 kHz
Input Amplitude
1 Vrms to 35 Vrms
Input Impedance
1.5 k

Isolation
500 Vac from input to chassis and input to all other circuits
Open Wire Detection
MPU only > 7.5 k Ω
Table 2-5b. Active Probe Specifications
Input Frequency
Active Probe (Proximity, Eddy Current): 0.5 Hz to
25 kHz
Input Amplitude
Active Probe: 24 V probes
Probe Power
24 V ±10% @ 1 W, probe power switched on only in active probe mode.
Internal Pull-up Resistor
10 k

, input suitable for use with open collector probe outputs (see
Note)
Input Threshold (Vlow)
< 2 V
Input Threshold (Vhigh)
> 4 V
Isolation
500 Vac from input to chassis and input to all other circuits
Released