Great Plains 2420P Operator Manual - Manual (Page 82)

2410P and 2420P
118-769M 2012-04-17
80
Settings for Great Plains Precision Population Controllers:
1. Connect SiteMate computer to Console using 9-pin serial cable as shown in Figure 1 on page 86.
2. Follow instructions to set Calibration Number based on row spacing and metering wheel.
3. Press Function key and go to Rawson mode. Press Function key until the Nominal Rate appears
on the display. Using the Up/Down arrow keys, set the Nominal Rate to the same number as you
set the PF3000. Once Nominal Rate is set, press Function key until the main operating screen
appears.
4. Press On/VR key again to toggle to VR mode. VR should appear on the screen along with the
Rate that is being sent from the SiteMate computer. Verify that the rate shown on the GP Con-
troller Console is the same as the recipe sent from SiteMate. Press Engage key to activate the
Precision Population Controller.
5. To change rates manually when in VR mode, simply touch the Up/Down arrow keys. This will
change the Controller to the rate you select manually. To return to VR, simply touch the On/VR
key to toggle back to VR mode.
Troubleshooting GPS-Based Seeding with SiteMate
1. No Rx rate appears on SiteMate
• Has field been selected? Select VRT file.
• Check recipe to verify that it is valid by viewing Attributes for each zone in SiteMate.
• If recipe calls for zero rate as the default, do you have GPS signal, or are you outside of field?
2. Rx rate appears on SiteMate, but no Applied Rate
• Make sure “Go” button on SiteMate is pressed (button should read “Stop” when recipe is being
sent to GP Console).
• you must be planting in order for Applied Rate to appear
3. Rx rate appears on SiteMate but not on GP Controller Console
• Make sure GP Controller Console is set to VR Mode.
• Double-check all cable connections.
• Check Nominal rates on both the SiteMate (SiteMate Settings, Step 4), and on the GP Controller
Console (GP Settings, Step 2). These must be set to the same number.
4. Rates on GP Controller Console and on SiteMate do not match
• Check Nominal rates on both the SiteMate (SiteMate Settings, Step 4), and on the GP Controller
Console (GP Settings, Step 2). These must be set to the same number.
• Re-check GP calibration number with metering wheel and row spacing.
• The recipe rates from SiteMate are in 4% increments. If the two rates are within this 4% range,
the units are operating normally.
• Check the Conversion number (SiteMate Settings, Step 2). If the recipe requires a target con-
version number, i.e. the recipe is for 25 which means 25,000 seeds/acre, the target conversion
number will be 1000. In this case the Nominal rate in SiteMate and the GP Console should be
near 25,000. See SiteMate Setting, Step 4 for calculating Nominal Rate.