Instruction manual

4.3 DCM check points, and board test points.

(The reference point for test point measurements can be circuit common at TB1- 1,7,8 or

10)

TP1: Field current; 10V = 100% (100% is the J1 selected value)

TP2: Armature voltage (7.7V = motor base voltage)

DCM A: 12VDC +5%

DCM B: 5VDC +5%

DCM C: 15VDC +5%

DCM D: -15VDC +5%

DCM E: Field current (scaled IFB, 2.37V = 100%)

DCM F: Armature over voltage fault (high = true)

DCM G: 20VDC +7%

DCM I: Scaled tach output (7v/1000RPM)

DCM J: Field current (10V = 100%)

DCM K: Field undercurrent fault (high = true)

DCM L: Scaled tach input

DCM M: Current reference (10v = Max current, 0v = Min current)

DCM N: Scaled armature volts (7.7v = 100% armature volts)

DCM O: Field economy (low = true)

DCM P: Crossover set point

DCM R: -20VDC + 7%

DCM S: Regulation trigger voltage (regulation loop error) – sums with the phase

reference saw tooth voltage to create the trigger pulses

DCM T: Field weakening voltage (>10 v = Max field, <0v = Min field)