Woodward MicroNet TMR 5009FT, Инструкция по установке и эксплуатации оборудования

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Manual 26518V2 5009FT Installation/Hardware
Woodward 24
Figure 4-7. MPU Pickup Voltage vs Frequency
Analog Inputs—TMR Analog Combo Module
The base offering control accepts eight 4–20 mA current inputs, with each of the control’s two FTMs
accepting four inputs. All analog inputs may be used with two-wire ungrounded (loop powered)
transducers or isolated (self-powered) transducers. Because inputs are not fully isolated, care must be
taken in their application and maintenance to avoid “ground-loop” type problems. All analog inputs have
200 Vdc common mode rejection isolation. If interfacing to a non-isolated device which may have the
potential of reaching over 200 Vdc with respect to the control’s common, the use of a loop isolator is
recommended to break any return current paths, which could result in erroneous readings.
All eight analog inputs are programmable. When an analog input is used, the chosen input must be wired
to and configured within the control’s program to function. Refer to Volume 3 of this manual for a
complete list of programmable analog input options.
A 24 Vdc power supply is available from the 5009FT control to power external transducers or other
auxiliary devices. Isolation is provided through diodes on the power and common lines. This 24 Vdc
output is capable of providing 24 Vdc with +10% regulation. Power connections are be made through
terminals located on system FTMs.
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