Miller TM-4414K Manuale tecnico - Pagina 19

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6-4. Power Board PC1 Testing Information

2

6-5. Power Board PC1 Test Point Values

Receptacle
Pin
RC31
1
2
3
4
5
6
7
8
9
Belt/Hydraulic-Drive Generator
1
PC1 Voltage Readings
Pulse Width Modulation (PWM) Signal: 0 to +15 volts DC at no load; voltage increases with genera-
tor load
Shutdown Signal: +12 volts DC when shutdown is latched; 0 volts DC when shutdown is not latched
+12 volts DC
Revolving field (rotor): +25 volts DC at no load with respect to RC31-6; +75 volts DC at full load with
respect to RC31-6
Not used
Revolving field (rotor): +25 volts DC at no load with respect to RC31-4; +75 volts DC at full load with
respect to RC31-4
Circuit common
Exciter: 150 volts AC with respect to RC31-9
Exciter: 150 volts AC with respect to RC31-8
Be sure plugs are secure before
testing. See Section 6-5 for specific
values during testing.
1
Power Board PC1
2
Receptacle RC31
.
Receptacle RC31 was pre-
viously labeled RC14.
Test Equipment Needed:
a) Tolerance
specified
b) Condition − no load; generator
running at 3000 (50 Hz) or 3600
rpm (60 Hz)
c) Reference − to circuit common
(RC31-7) unless noted
Value
803 236 / Ref. 209 400
±
−
10%
unless
TM-4414 Page 15