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ACT2000
Motor Current Feedback
The ACT2000 provides motor current feedback to the user. This internally
generated feedback signal is proportional to actuator load. 4mA represents no
load on the actuator.
The motor current feedback is provided on the BLUE wire. The motor current
feedback return is provided on the WHITE/BLUE wire. The expected external
impedance is 250 ohms. The maximum external impedance is 500 Ohms.
2.2.4 Fault Alarms
The discrete alarm outputs are opto-isolated electronic switches that are normally
closed. The user controller provides 24 VDC with current limiting resistor, to
complete the circuit. If a FAULT or OVERTEMP alarm has occurred, the switch
opens thereby communicating an alarm to the user’s controller. Refer to Figure 2-
6 for typical connection. Refer to Section 6 for load specification values.
CONTROLLER DISCRETE INPUT
A
CTUATOR DISCRETE OUTPUT
FAULT RTN [WHT/ORN]
OVERTEMP RTN [WHT/BLK]
FAULT ALARM [ORN]
OVERTEMP ALARM [BLK]
CONTROLLER DISCRETE INPUT
A
CTUATOR DISCRETE OUTPUT
FAULT ALARM [ORN]
OVERTEMP ALARM [BLK]
FAULT RTN [WHT/ORN]
OVERTEMP RTN [WHT/BLK]
Figure 2-6: Typical Fault Alarm Connection
The FAULT alarm is provided on the ORANGE wire. The FAULT alarm return is
provided on the WHITE/ORANGE wire.
The OVERTEMP alarm is provided on the BLACK wire. The OVERTEMP alarm
return is provided on the WHITE/BLACK wire.
WARNING:
Property Damage – Connection of 24 VDC power across the actuator
discrete output will cause electrical failure of the output. Series resistance
should be added to the 24 VDC output from the controller to limit the
current to 25mA max.
2.2.5 RS232 Communications
RS232 serial communications is achieved with user-provided connection to the
Serial Rx In, Serial Tx Out and Serial Rtn wires.
• The Serial RX In wire is WHITE/ORANGE/YELLOW.
• The Serial Tx Out wire is WHITE/ORANGE/BLUE.
• The Serial Rtn wire is WHITE/ORANGE/GREEN.
The RS232C type interface is used to communicate with the ACT2000 using
ActWiz software.
2-5