Hamilton Sundstrand Company ACT2000 - Manual (Page 23)

Analog Inputs
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 1-9 for a typical analog input connection.
ACT2000 4-20mA INPUT CONTROLLER 4-20mA OUTPUT
+
-
DEMAND [BRN]
DEMAND RTN [WHT/BRN]
200
Ω
+
-
Figure 1-9. Typical Analog Input Connection
Analog Outputs
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 1-10 for a typical
analog output connection.
CONTROLLER 4-20mA INPUT ACT2000 4-20mA OUTPUT
+
-
POSITION [YEL]
MTR CURRENT [BLU]
POSITION RTN [WHT/YEL]
MTR CURRENT RTN [WHT/BLU]
<500
Ω
+
-
Figure 1-10. Typical Analog Output Connection
Discrete Inputs
The discrete inputs are 24 VDC ON (High) and 0 VDC OFF (Low). They
are electrically isolated up to 500 VAC. See Figure 1-11 for a typical
discrete input connection.
CONTROLLER DISCRETE OUTPUT
ACT2000 DISCRETE INPUT
RUN RTN [WHT/VIO]
RESET RTN [WHTGRY]
RUN [VIO]
RESET [GRY]
Figure 1-11. Typical Discrete Input Command Connection
INSTALLING THE ACT2000 17