Miller ProHeat 35 OM-222 166F, Owner'S Manual

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OM-222 166 Page 45
Fault Condition Additional Information
F59: Output Current Fault Service required
F60: Temperature Sensor Fault Check control TC connections
Check control TC extension cable
F61: Coolant Flow Fault Check for coolant leak
Clean for coolant blockage
Check coolant filter and level
Check coolant connections
F62: Isolation Fault Check for exposed conductor
Clean for moisture on cables
F63:Line Voltage Fault Check line voltage
F64: Power Source Overtemp Fault Verify power source vents and
wind tunnel are unobstructed
F65: Current Source Fault Service required
F66: Under Frequency Fault Check for loose or open connections
in output cable
Decrease number of turns
Decrease coil space
F67: Over Frequency Fault Verify heating cable properly wrapped
Verify material being heated is magnetic
F68: Cable Connection Fault Check for loose/open output connection
Verify all output cables are same type
Verify receptacle plug connected
F69: Coolant Overtemp Fault Check coolant flow and level
Clean coolant filters and heat exchanger
Increase number of turns
Verify appropriate insulation thickness
F70: Internal Communication Fault Service required
F71: Internal Thermistor Fault Service required
F72: Coolant Thermistor Fault Service required
F73: Decoupled/Open Coil Service required
F74: Isolation Fault Self-Test Error Service required
F75: Internal Power Supply Fault Service required
F76: Current Source Control Fault Service required
F77: Power Source Internal Comm Fault Service required
F78:Output Current Sense Fault
Check for loose/open output connection
9-6. System Diagnostic Screens
Additional system diagnostics are available and accessible through the operator interface. Detail operational
parameters can be accessed by pressing and holding the Run Status button and pressing the Parameters
Hz
V
A
kW
button.
When this feature is initially activated, the following screen appears on the LCD display: