Ransburg 9040 Service Manual page 19

Analog Current Output Signal
An analog current output signal is available
from the 9040 control unit at 2PL-8 (outside) or
2SOC-8 (inside). This signal can be connected
to a recording device (strip chart recorder, data
acquisition unit, etc.) to monitor the output
current of the control unit over time. This signal
should be referenced to earth ground. The input
resistance of the recording device should be 5
megohms or greater.
If the input resistance of the recording
>
device is less than 5 megohms, it will
affect the reading on the 9040 control
unit microampmeter.
The analog current output signal can be adjusted
such that 0 to 10 VDC represents 0 to 100
microamps or 0 to 200 microamps, by opening or
shorting jumper JP8 on the main PC board (see
Figure 4 for JP8 location). The board is factory
supplied with JP8
terminals) such that 0 to 10 VDC represents 0 to
200 microamps. To set the analog output current
so that 0 to 10 VDC represents 0 to 100
microamps open jumper JP8 (reposition so that it
covers only one terminal).
The wiring from the user supplied analog output
current recording device (with input resistance of
5 megohms or greater) can be connected directly
to outside terminal 2PL-8, or for installations
requiring conduit, connected to the inside terminal
2SOC-8 as described below. Connect common of
the recording device directly to earth ground.
1. Ensure the front panel fuse is removed, the
control unit is unplugged, and the ON/OFF
switch is in the OFF position.
2. Loosen the front panel screws and slide the
control unit chassis out.
CP-11-01
9040 Low Voltage Control Unit Kit- Installation
NOTE
shorted (covering
Figure 4: Main PC Board
3. Route the wire of the external recording device
through the External Wiring Grommet opening
and connect to the existing wiring for 2SOC-8.
4. Slide the chassis back in, secure the front
panel screws, replace the fuse, and plug the
control unit back in.
Triple Set Point/Analog Input
Control Connections
9040 Cascade control units for automatic applicators
both
are shipped
Setpoint/Analog Input Interface Board installed.
When set for triple setpoint operation, three discreet
setpoints for high voltage output at the spray
applicator can be selected, using two 24 VDC input
signals. When set for analog input operation a 0 —
10 VDC or 4 — 20 mADC input signal can be used to
select continuous kV output at the spray applicator
from 0 to rated kV. With either setting a PLC, robot,
ext. can thus select from different voltages to suit the
spray application.
with a combination Triple
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