Operating Modes - Fronius CU 1100i Operating Instructions Manual

Operating modes

The individual operating modes can be selected on the power source.
on
Available on:
CU 800i, CU 800i /460 V, CU 800i Pro, CU 1100i, CU 1100i /460 V, CU 1100i /MV, CU
1100i /MV RVP, CU 1400i Pro, CU 1400i Pro /MC
Operating status:
Continuous. The cooling units starts running as soon as the power source is switched on
(fan and coolant pump permanently running)
off
Available on:
CU 800i, CU 800i /460 V, CU 800i Pro, CU 1100i, CU 1100i /460 V, CU 1100i /MV, CU
1100i /MV RVP, CU 1400i Pro, CU 1400i Pro /MC
Operating status:
Inoperative, even when welding starts.
auto
(factory setting)
Available on:
CU 800i, CU 800i /460 V, CU 800i Pro, CU 1100i, CU 1100i /460 V, CU 1100i /MV, CU
1100i /MV RVP, CU 1400i Pro, CU 1400i Pro /MC
Operating status:
The cooling unit begins to run as soon as welding starts (fan and coolant pump run).
At the end of welding, the cooling unit continues to run for another 2 minutes. The cool-
ing unit switches off after these 2 minutes.
eco
Available on:
CU 1400i Pro /MC, CU 1400i Pro (only with OPT/i CU flow temperature sensor option
fitted)
Operating status:
The coolant pump starts to run when welding starts and is electronically controlled sub-
ject to the coolant return temperature. The fans start up at a coolant return temperature
of 40 °C (104 °F) and are electronically controlled subject to the return temperature.
After the end of welding, the coolant pump and fans continue to run for another 2
minutes subject to the coolant return temperature. After these 2 minutes have passed,
the fans and coolant pump are switched off.
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