Figure 1-13. Typical Analog Input Connection; Figure 1-14. Typical Analog Output Connection; Figure 1-15. Typical Discrete Input Command Connection - Hamilton Sundstrand Company Gas Fuel Metering Valve HFG2.0 User Manual

Analog Inputs
CONTROLLER 4-20 mA OUTPUT
Analog Outputs
CO NTROL LER 4- 20mA INPUT
+
-
Discrete Inputs
CONTROLLER DISCR ETE OUT PUT
20
The analog input, DEMAND, has a current range of 4 - 20 mA. It is
electrically isolated up to 500 VAC from the enclosure, 120 VDC power,
digital I/O, and serial interface. The analog interfaces are not isolated from
each other. See Figure 1-13 for a typical analog input connection.
DEMAND
+
DEMAND RT N
-

Figure 1-13. Typical Analog Input Connection

The analog outputs, MOTOR CURRENT and POSITION, have a current
range of 4 - 20 mA. They are electrically isolated up to 500 VAC from the
enclosure, 120 VDC power, digital I/O, and serial interface. The analog
interfaces are not isolated from each other. See Figure 1-14 for a typical
analog output connection.
POSIT ION
MT R CURRENT
Ω
<500
POSIT ION RT N
MT R CURRENT RT N

Figure 1-14. Typical Analog Output Connection

The discrete inputs are 24 VDC ON (High) and 0 VDC OFF (Low). They
are electrically isolated up to 500 VAC. See Figure 1-15 for a typical
discrete input connection.
RUN
RESET
RUN RTN
RESET RTN

Figure 1-15. Typical Discrete Input Command Connection

HFG2.0 4-20 mA INPUT
[BRN]
Ω
200
[WHT/BRN]
HFG 2.0 4-2 0mA O UTP UT
[YEL]
[BLU]
+
-
[W HT /YEL]
[W HT /BLU]
HFG 2. 0 DISCRET E INPUT
[VIO]
[GRY]
[WHT/VIO]
[WHTGRY]
HFG2.0 USER GUIDE
+
-