Miller 819A Технічний посібник - Сторінка 17

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Voltage readings taken with PLG4/RC4 connected.

Resistance readings taken with PLG4/RC4 disconnected.

Test Equipment Needed:

Belt Driven Generator

1 ohm

Pin 1

26 ohms

See Section 8-3 for

waveforms A,B

Waveform A

Check Resistance at TE1

C to D,

C to E,

C to F,

E to F,

D to F

All readings should be 1

ohm. Check with lead 42 lift-

ed. Replace generator if

windings are shorted to case

or open.

Voltage Readings

Tolerance

−

10%

specified

Condition − 70

F (21

machine (no warm-up); no load

Power rpm (3600 at 60 Hz, 3000 at

50 Hz) unless specified

Reference

−

single

reference to circuit common

(lead

42);

double

reference to points indicated

Wiring Diagram − see Section 10

V1 Thru V6 Taken At Basket Receptacle

X to Y − 240 volts AC ±10%

X to Z − 240 volts AC ±10%

Y to Z − 240 volts AC ±10%

X to G − 120 volts AC ±10%

Y to G − 120 volts AC ±10%

Z to G − 208 volts AC ±10%

Rotor:

20 volts DC at no load ±20%

70 volts DC at full load ±10%

Exciter:

138 volts AC at no load ±10%

155 volts AC at full load ±10%

Voltage Feedback:

240 volts AC ±10%

V10

Shutdown Signal:

0 volts DC during normal operation*

V11

PWM Signal: 0 to +15 volts DC

1.5 volts DC normal no load

4.3 volts DC at full load

V12

Generator Enable:

Battery voltage when generator is

enabled (on)

0 volts DC when generator is not en-

abled (off)

V13

Battery Voltage

If 12 volts DC is present, check rotor

and if rotor checks ok, replace con-

trol board PC1.

Measure Output Voltages V1

Thru V6 At Basket Receptacle

TM-268 819 Page 15

unless

C); cold

arrow:

210 193-B