102
to7 | xxx
Note: xxx stands for a temperature value
Cause: Overtemperature in the power source
Remedy: Allow power source to cool down, check air filter and clean if necessary,
check that fan is on
toF | xxx
Cause: With the TSt 2500c MV / TSt 2700c MV power source operating in single-
phase mode, the power source safety cut-out has tripped in order to prevent
the mains fuse from tripping.
Remedy: After a pause in welding of around 60 s, the message disappears and the
power source is operational again.
tu0 | xxx
Remark: xxx stands for a temperature value
Cause: Undertemperature in the power source primary circuit
Remedy: Place power source in a heated room and allow to warm up
tu1 | xxx
Note: xxx stands for a temperature value
Cause: Undertemperature on the booster located in the power source
Remedy: Place power source in a heated room and allow it to warm up
tu2 | xxx
Remark: xxx stands for a temperature value
Cause: Undertemperature in the power source secondary circuit
Remedy: Place power source in a heated room and allow to warm up
tu3 | xxx
Remark: xxx stands for a temperature value
Cause: Undertemperature in the wire-feed unit motor
Remedy: Place wire-feed unit in a heated room and allow to warm up
tu4 | xxx
Remark: xxx stands for a temperature value
Cause: Undertemperature in the welding torch
Remedy: Place welding torch in a heated room and allow to warm up
tu5 | xxx
Remark: xxx stands for a temperature value
Cause: Undertemperature in the cooling unit
Remedy: Place cooling unit in a heated room and allow to warm up
tu6 | xxx
Note: xxx stands for a temperature value
Cause: Undertemperature on the transformer of the power source
Remedy: Place power source in a heated room and allow it to warm up
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