212
a. control Board assembly (pcB1)
1. led’s
LED-1 - Torch Switch
LED-2 - High Frequency
LED-3 - Gas Solenoid Valve
2. Voltage test points
Tests are made with power on - no arc.
disable high frequency by disconnecting blue wire with black sleeve
TP-0 -
Ground
TP-1 -
+15 vdc
TP-2 -
+12 vdc
TP-3 -
-12 vdc
TP-4 -
+5 vdc
TP-9 -
IGBT’s driving signal - switching frequency = 16 KHz
TP-10 -
IGBT’s driving signal - switching frequency = 16 KHz
For 208/230 VAC input, the IGBT off time is 3msec.
For /460/ VAC input, the IGBT off time is 6msec.
figure 5-3. IGBt Gating signal
5.7
reference VoltaGe checks
sectIon 5
maIntenance
Summary of Contents for Powercut 875
Page 4: ...4 table of contents ...
Page 8: ...8 OBSAH ...
Page 18: ...18 ODDÍL 3 INSTALACE ...
Page 24: ...24 ODDÍL 4 OBSLUHA ...
Page 28: ...28 INDHOLDSFORTEGNELSE ...
Page 38: ...38 SEKTION 3 BETJENING ...
Page 44: ...44 SEKTION 4 BETJENING ...
Page 48: ...48 INHOUDSOPGAVE ...
Page 58: ...58 HOOFDSTUK 3 INSTALLATIE ...
Page 64: ...64 HOOFDSTUK 4 BEDIENING ...
Page 68: ...68 table of contents ...
Page 78: ...78 SECTION 3 INSTALLATION ...
Page 84: ...84 SECTION 4 OPERATION ...
Page 88: ...88 SISUKORD ...
Page 98: ...98 OSA 3 PAIGALDAMINE ...
Page 104: ...104 OSA 4 KASUTAMINE ...
Page 108: ...108 SISÄLLYSLUETTELO ...
Page 118: ...118 KAPPALE 3 ASENNUS ...
Page 124: ...124 KAPPALE 4 KÄYTTÖ ...
Page 128: ...128 table DES MATIÈRES ...
Page 138: ...138 SECTION 3 INSTALLATION ...
Page 144: ...144 SECTION 4 FONCTIONNEMENT ...
Page 148: ...148 INHALTSANGABE ...
Page 158: ...158 ABSCHNITT 3 INSTALLIERUNG ...
Page 164: ...164 ABSCHNITT 4 BEDIENUNG ...
Page 168: ...168 TARTALOMJEGYZÉK ...
Page 178: ...178 3 SZAKASZ ÖSSZESZERELÉS ...
Page 184: ...184 4 SZAKASZ MŰKÖDÉS ...
Page 188: ...188 INDICE ...
Page 198: ...198 SEZIONE 3 INSTALLAZIONE ...
Page 204: ...204 SEZIONE 4 FUNZIONAMENTO ...
Page 216: ...216 section 6 replacement parts ...
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