Ross Hill 0522-2400-21 DC Control Module NOV National Oilwell Varco 6415-2400-21 Rev A

Motor Series DW Limit 1100A RT Limit 50-900A MP1 800A MP2

Ross Hill DC Regulator Auxiliary Schem 200D116 Assy 200D120 FAB 200D122 Rev K

DC Regulator Circuit Board Schem 200D116 Assy 200D117 FAB 200D119-M

Motor Series

DW Limit 1250A

RT Limit 50-1400A

MP1 Limit 2300A

MP2 Limit 1700A

CP Limit 900A (Winch)

Special MOD MP1 & MP2 Dual Motor

RT/TD=-.6VDC DEADBAND