Woodward Vertex-Pro, Инструкция по установке/руководство по оборудованию

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Manual 26489V1 Vertex-Pro Motor-Driven Compressor Control
Woodward 49
There are two configurations of the Analog Combo Modules. One has the analog
inputs configured for 4-20 mA and the other is configured for 0-5 V. See
Appendix A for specific part numbers. In a simplex system, each Analog Combo
module is connected through two Low Density analog cables to one Analog
Combo FTM. All of the I/O are accessible on the FTM, and the channels are
labeled to correspond to their software locations. See Figure 9-15 for
configuration.
Analog
Combo
Low Density Analog/Discrete Cable
Analog Combo
FTM
(MPU Ch. 3-4)
(AI Ch. 5-8)
(AO Ch. 3-4)
J1
P2
J1
P2
J1
P1
J2
P1
Low Density Analog/Discrete Cable
Analog Combo
FTM
(MPU Ch. 1-2)
(AI Ch. 1-4)
(AO Ch .1-2)
Power Supply
#1
CPU
Figure 7-6—Simplex System Configuration Example
Field Wiring
See Chapter 8 for detail wiring connections for the Analog Combo FTM. Wire
each channel per the following examples for each type of signal.
Speed Sensor Inputs
The MPU and proximity probe inputs are read and the speed is provided to the
application program. A derivative output is provided via the application software if
desired. The speed sensor inputs are filtered by the Analog Combo module and
the filter time constant is selectable through the application software program at 8
milliseconds or 16 milliseconds. Eight milliseconds should be acceptable for most
applications. 16 milliseconds may be necessary for very slow speed applications.
The speed range determines the maximum speed that the module will detect.
The control output of the software will detect a minimum speed of one fiftieth of
the speed range. This allows detection of failed speed sensors to help prevent
overspeed due to slow update times at very low speeds. The monitor output of
the GAP block will read down to 0.5 Hz, irrespective of the speed range. An
application may use any combination of accepted MPU and proximity probes,
and any combination of speed ranges.
Any of the module’s four speed channels accepts passive magnetic pickup units
(MPUs) or proximity probes. Each speed input channel can only accept one MPU
or one proximity probe.