SharpShooter
®
with Rate Sync
®
- Turf Sprayer Edition
©2003, 2011, 2015 Capstan Ag Systems, Inc., All Rights Reserved | Version:
P-3.0
| 6/9/2016
9.0 - Troubleshooting
70
9.5.11 - Pulse Circuit Test
SSRS Display Output Check
Disconnect the Valve Driver from the extension
harness that routes to the power hub by disconnecting
the 8-pin Deutch connector.
Place the SSRS Display in the Manual (PWM) Mode
and then select 70% duty cycle with the increase/
decrease keys.
[Figure 62]
- Use a voltmeter to observe that there is
4.05 VDC between pins 1 and 4.
Most voltmeters measure signal as 12 VDC 10 Hz
square wave which is a low voltage. In addition, the
signal is inverted, so the 70% duty cycle selected on
SSRS Display will actually be a 30% duty signal at the
Valve Driver. Measurements may vary depending on
the voltmeter used. This tests the even pulse.
Make the same measurement between pins 2 and 5.
This tests the odd pulse.
If accurate voltage is not found:
•
Check the Valve Driver extension connections.
•
Check the SSRS Display extension connections.
•
Check the SSRS Display serial diagnostics.
Figure 62: Pulse Circuit Test
SSRS
Display
Output
Check
(70%)
Valve Driver
End on the
Power Hub
Harness
(Female
Deutsch
Connector)
