Ross Hill 0509-1300: Field Supply PCB
The field supply card in a Ross Hill / NOV SCR drive. It provides and regulates field current to the DC drilling motors.
Independent supplier. RHCC 0509-1300 is identified from the installed number. Manufacturer and trademark names are used for reference only, and condition is disclosed before sale.
| Part number | 0509-1300 |
|---|---|
| System | Ross Hill / Hill Hayes / NOV SCR drilling |
| Function | DC drive control |
| Condition | New-surplus, used-tested, reconditioned |
| Also searched as | 0509-1300 · 05091300 · 1300 · Ross Hill · NOV · Hill Hayes |
What it does
A DC drilling motor develops torque from armature current acting against motor field. The field supply card provides that field. Because field weakening is how these drives reach higher speed, a fault here shows up as a speed and torque problem rather than an obvious electrical failure: a motor that will not reach speed, or one that runs away above base speed.
Symptoms that point here
| What you are seeing | What it usually indicates |
|---|---|
| Motor will not reach rated speed | Field not weakening correctly at the top of the range |
| Motor overspeeds or runs away | Loss of field: treat as urgent |
| Low torque at low speed | Field current below rating |
| Drive faults on overcurrent under normal load | Armature compensating for weak field |
| No field or weak field on a DC drilling motor after the DC module checks out | The field supply PCB is the next suspect in the field path: confirm shunt vs series from the motor, not the drawing |
Confirm the installed unit
For 0509-1300, send the complete dash number and a clear nameplate or board-label photo. The quoted unit is matched to the supplied identifier before condition and lead time are confirmed.
Condition and sourcing
RHCC 0509-1300 is quoted only after current availability, condition, and lead time are confirmed. Any offered unit is identified as new-surplus, used-tested, or reconditioned before sale.
If the observed failure does not line up with RHCC 0509-1300, use the SCR Drive Fault Finder to narrow the subsystem before requesting a part.
FAQ
What does the field supply PCB do?
Why does a field fault cause overspeed?
Do you have it?
Availability & Quote
For RHCC 0509-1300, condition is disclosed before sale. Item photographs are supplied with an actual offer.
Related
Want a quick quote for 0509-1300?
Fill out your contact info here, and we'll get a quote sent to you ASAP!