User Guide

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12. Determine the finish point of the actuator by adding the desired voltage span to the start
point voltage. The finish point is the voltage that causes the actuator to just reach its
rotational limit. Adjust the voltage signal source (voltage calibrator) until the DVM
reading equals the calculated finish point voltage.
13. With the finish point voltage applied, adjust the input span potentiometer, using a small
screwdriver, so that the actuator shaft
just reaches its rotational limit .
Note: Occasionally, an adjustment to the input span setting results in a change to the start
point setting, due to a small interaction between these two settings. After adjusting the
input span potentiometer, ensure that both settings meet requirements by repeating steps
10 through 13, as necessary.
14. Turn off the voltage input signal to the drive and turn off power to the actuator. Then,
reconnect the drive’s leads to the controller.
15. Reinstall the cover onto the drive and secure it with the screw removed in step 3.
16. Reapply power to the actuator, then turn on the controller signal to the drive’s voltage
input.
Current Input
Adjustments
When a CP-9302 has been left at its factory presets, the settings detailed in Table-1 apply.
If a CP-9302 requires adjustments to its deadband, startpoint, or input span, or if a CP-9301
is to be reconfigured for current input, make adjustments according to the following:
Caution:
• Do not apply a voltage source input to a CP-9301 or CP-9302 actuator drive that is
configured for current input. Doing so may damage the drive.
• Static charges produce voltages high enough to damage the electronic components.
Follow static electricity precautions when servicing the device(s).
1. Turn off the controller signal to the drive’s current input.
2. Turn off power to the actuator.
3. Remove the screw that secures the cover to the drive, then remove the cover. This
provides access to the start point and input span adjustment potentiometers, as well as
the input and deadband jumpers (Figure-9).
4. Disconnect the drive’s yellow and blue leads from the controller.
5. When reconfiguring a CP-9301 for current input, reposition the input jumper to the
current input setting, as shown in Figure-9.
6. Connect a digital mA meter in series with the current signal source (current calibrator)
by connecting the meter’s red lead to the signal source’s “+” output, and the meter’s
black lead to the drive’s yellow lead.
7. Connect the drive’s blue (common [-]) lead to the corresponding lead of a suitable
current signal source (current calibrator).
8. Apply power to the actuator, then turn on the current signal source (current calibrator).
9. If desired, reset the deadband by repositioning the deadband jumper.
10. Adjust the current signal source (current calibrator) until the mA meter reading equals
the desired start point current (2 to 16 mAdc).
11. With the desired start point current applied, adjust the start point potentiometer, using
a small screwdriver, so that the actuator shaft
just reaches the start point .
12. Determine the finish point of the actuator by adding the desired current span to the start
point current. The finish point is the current that causes the actuator to just reach its
rotational limit. Adjust the current signal source (current calibrator) until the mA meter
reading equals the calculated finish point current.
13. With the finish point current applied, adjust the input span potentiometer, using a small
screwdriver, so that the actuator shaft
just reaches its rotational limit .