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ACT2000
Run Command
The RUN command is a user provided discrete input to the ACT2000 which
allows the actuator to track position demand. The +24 VDC signal shall be
provided on the VIOLET wire. The signal return shall be provided on the
WHITE/VIOLET wire.
Reset Command
The RESET command is a user provided discrete input to the ACT2000, which
causes the actuator to go through the initial homing sequence and reset all
internal position indicators. RUN and position demand inputs are ignored during
the RESET command. The +24VDC signal shall be provided on the GRAY wire.
The signal return shall be provided on the WHITE/GRAY wire.
2.2.3 Analog Inputs/Outputs
The ACT2000 receives analog position demand from an external, user-provided
controller and provides analog actuator position and motor current feedback.
Refer to Figures 2-4 and 2-5 for typical connection. Refer to Section 6 for load
specification values.
A
CTUATOR 4-20mA INPUT
CONTROLLER 4-20mA OUTPUT
+
-
DEMAND [BRN]
DEMAND RTN [WHT/BRN]
200
Ω
+
-
Figure 2-4: Typical Analog Input Connection
CONTROLLER 4-20mA INPUT
A
CTUATOR 4-20mA OUTPUT
+
-
POSITION [YEL]
MTR CURRENT [BLU]
POSITION RTN [WHT/YEL]
MTR CURRENT RTN [WHT/BLU]
500
Ω
+
-
Figure 2-5: Typical Analog Output Connection
Position Demand
The position demand is a 4-20mA user provided analog input that causes the
actuator to a command position. The position demand shall be provided on the
BROWN wire. The position demand return shall be provided on the
WHITE/BROWN wire. The position demand internal impedance is 200 ohms. The
position demand requires a sourcing current.
Position Feedback
The ACT2000 provides actuator analog position feedback to the user. This
internally generated feedback signal is proportional to the actual position.
The actuator position feedback is provided on the YELLOW wire. The actuator
position feedback return is provided on the WHITE/YELLOW wire. The expected
external impedance is 250 ohms. The maximum external impedance is 500
ohms. Typically, the position feedback will be within
+ 0.1 mA of the position
demand.
2-4