Hypertherm HD4070 Rev.8 User Manual

Page 171

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MAINTENANCE

5-24

HD4070

Instruction Manual

3

Breakout Board LED List

LED

Signal Name

Function

D5

THC1 Tx

Transmits information to THC1

D6

THC2 Tx

Transmits information to THC2

D7

THC1 Rx

Receives information from THC1

D8

THC2 Rx

Receives information from THC2

D9

Watchdog

Illuminated when no errors are detected

D11

CNC Tx

Transmits information to CNC

D12

Gas Tx

Transmits information to gas console

D13

Display Tx

Transmits information to touch screen display

D14

Display Rx

Receives information from touch screen display

D15

CNC Rx

Receives information from CNC

D16

Gas Rx

Receives information from gas console

D17

–12 VDC

Power indicator

D24

+12 VDC

Power indicator

D25

+5 VDC

Power indicator

LEDN2

Signal Name

Function

LEDN2-1

Not Used

LEDN2-2

Master door interlock

All interlocks are engaged

LEDN2-3

Output current OK

Power supply control has detected current from chopper

LEDN2-4

Temp / Airflow OK

Transformer temperature is with-in normal operating range

LEDN2-5

Chopper #2 Temp OK

Chopper 2 temperature is within normal operating range

LEDN2-6

Chopper #1 Temp OK

Chopper 1 temperature is within normal operating range

LEDN2-7

Missing phase detect

Indicates proper 3-phase line voltage

LEDN2-8

Input power active

Indicates proper logic power on power supply control board

LEDN2-9

Not Used

LEDN2-10

Not Used

Breakout Board LEDN List

LEDN1

Signal Name

Function

LEDN1-1

Not Used

LEDN1-2

THC1 cable installed

Checks for cable installation

LEDN1-3

THC1 IHS complete

Contact with work-piece detected

LEDN1-4

THC1 retract complete

THC1 is at home position

LEDN1-5

THC1 discrete error

Indicates THC error

LEDN1-6

THC2 cable installed

Checks for cable installation

LEDN1-7

THC2 IHS complete

Contact with work-piece detected

LEDN1-8

THC2 retract complete

THC2 is at home position

LEDN1-9

THC2 discrete error

Indicates THC error

LEDN1-10

Not Used

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