Pro Spot i5 Instruction Manual page 33

i5
4.2.5 Service Panel Window – Control System Status Lamps
Location: Underneath the i5's swivel head that houses the display screen.
Purpose: To quickly determine the status of many internal systems.The welder needs
to be powered up. There are several lights to watch for. The Voltage Indicator windows
have three LED lights in
only one light per window.
NOTE: D means diode while the number determines the device's board location.
1) Bus High Voltage OK: LED1 & 2 indicate 300 volts DC present. Both stay ON (but
often only one of them is seen unless top cover is removed).
D26= present.
D06= present
2) IGBT Control System OK: LEDs 1, 2, 3, 4 indicate voltage present across each
IGBT gate. Each LED should stay ON. LED 5 (yellow) indicates 15VDC control voltage
and should stay ON. These diodes are on a separate, vertically-mounted mini-board.
D107 = present
D108 = present
D109 = present
D110 = present
D101= 15V present
3) AC Input - Voltage Drop Condition: LEDs 4, 5, 6 indicate a problem if any of them
comes ON during welding. They all come on briefly during startup then stay OFF.
D23= Primary voltage drop 10%,
D22= Primary voltage drop 15%
D21= Primary voltage drop 20%
4) DC Voltage Indicators, LED 1, 2, 3 indicate
logic voltages generated and present.They
come ON during startup and stay ON.
D12 = 24V present
D10= 15V present
D11= 18V present
Swivel head and top plate removal required to view Service Panel Window.
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each window, while the IGBT and Bus Bar windows have
Service Panel Window –
Control System Status Lamps
4 - Operation
12 IGBT 2
BUS VOLTAGE
IGBT 1
IGBT 2
IGBT 3
IGBT 4
IGBT 5
IGBT 4 IGBT 5 6
1
2
3
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