Nexen RSD200 964531 - Manual (Page 6)

FORM NO. L-21161-E-0108 
+2 VDC & DC Common: RSD200 requires 24 VDC to
operate (Refer to SPECIFICATIONS for current rating).
Sensor excitation: This output provides +12 VDC
as an excitation voltage for dancer arm position
sensors such as Nexen’s older DPS 30 or DPS 60
sensors and mechanical potentiometers (Refer to the
SPECIFICATIONS section for current rating.) If using
Nexen’s DPS30A or DPS60A sensors, note that the
excitation voltage required is +24 VDC.
Position Sensor Input: The position sensor input is
a 0–10 or 0–12 VDC signal that is provided from the
dancer arm position sensor. The choice of voltage range
is selected by Jumper W3 (Refer to Figure 7). For best
results the voltage range should match the dancer arm
swing (i.e.: a 30° dancer arm swing should produce
nearly a 0–10 VDC or 0–12 VDC position signal).
Start/Stopped Signal or RS22 Receive: This input
has two functions: first, to accept a Start/Stopped
Signal; and second, to act as the receive line for RS232
communications. The function is chosen by Jumper W5
(Refer to Figure 7).
As a Start/Stopped input, this signal uses Isolated DC
Common as a return. When 12-24 VDC is applied, the
controller will respond according to how this input was
setup (refer to Start/Stopped Signal Selection Section).
This feature tells the RSD200 controller when the
machine starts and stops. A yellow indicator, I6, on the
controller’s printed circuit board will be on when 12-24
VDC is present at this input.
As the receive line (Rx) for RS232 communications,
this input, the next input (Tx), and DC Common are all
that is needed to communicate with the RSD200 (Refer
to Figure 5). RSD200 setup, tuning and diagnostic
parameters can be sent back and forth between the
controller and other devices such as a PLC or computer
by using RS232. When using this input as the receive
line for RS232 communications, the Start/Stopped
Signal command has to be sent via this communications
link (See Communications Protocol in the Appendix).
Splice or RS22 Send: This input has two functions:
first, to accept the Splice signal; and second, to act as
the send line for RS232 communications. The function is
chosen by jumper W6 (Refer to Figure 7).
As the Splice input, this signal uses the Isolated DC
Common as a return. When 12-24 VDC is applied
momentarily, the current ADAPTATION value will change
to NEW ROLL ADAPTATION value (See TUNING and
OPERATION sections) and the RSD200 will adapt
to the new roll or core. A yellow indicator, I5, on the
controller’s circuit board will be on when 12-24 VDC is
present at this input.
As the send line (Tx) for RS232 communications, this
input, the previous input (Rx), and DC common are all
that is needed to communicate with the RSD200 (Refer
to Figure 5). RSD200 setup, tuning and diagnostic
parameters can be sent back and forth between the con-
troller and other devices such as a PLC or computer by
using RS232. When using this input as the send line for
RS232 communications, the Splice command has to be
sent via this communications link (See Communications
Protocol in the Appendix).
Control Signal Output: This output signal can be used
as an input to a current or voltage-to-pressure converter
or as a control signal to a motor drive. The output is
chosen by jumper W7 (Refer to Figure 7). The output
can be set to 0–10 VDC or 4–20 mA. both ranges are
already calibrated and ready for use.
Isolated DC Common Input: In cases where isolated
Start/Stopped and Splice inputs or Control Signal Output
is desired, this input is the return line for the isolated
power supply (user supplied). If isolation is not needed,
this input must be connected to DC Common input.
Isolated +2 VDC Input: In cases where isolated Start/
Stopped and Splice inputs or Control Signal Output is
desired, this input is the supply line for the isolated 15-
24 VDC power supply (user supplied). If no isolation is
needed, this input must be connected to the +24 VDC
input (Refer to Figure 4).
Figure  RSD200 electrical Connections
Sensor Excitation
+24 VDC
DC Common
Position Sensor Input
Not Used
Not Used
Start/Stopped, Rx
Isolated DC Common Input
Control Signal Output
Splice, Tx
Isolated +24VDC Input
RSD200
1.2 eLeCTRICAL CONNeCTIONS