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Operation
10.3 Key functions
4 short-travel keys (softkeys) constitute the operator interface for the DCU.
10.4 Symbol description
Key
Application/Example
Explanation
Reset
(error acknowledgement) acknowledges errors (red
LED illuminates)
[309]: ActualSpd
[308]: SetRotSpd
Scroll back through parmeters
Scrolls back one parameter
[310]: DrvCurrent
[311]: OpHrsPump
Scroll forwards through parameters
Scrolls forwards one parameter
Simultaneous
[001]: Heating
–––
►
off
Change value (Edit mode)
Access to displayed value, if possible
(Arrow–––
►
is displayed)
[001]: Heating
on
Confirm value (Parameter selection mode)
Accept changed value
("change confirmed" is displayed)
[010]: PumpgStatn
on / off
Pumping station ON/OFF
switches pumping station on or off.
corresponds to parameter [010]: "PumpgStatn"
Symbol Description
Arrow Explanation
Pump accelerates
= [P:307]
-
NO
YES
Preselection heating
= [P:001]
-
No preselection
Preselection heating, switchpoint not attained
Heating On, switchpoint attained
Standby
= [P:002]
-
OFF
ON
Equipment remote con-
trolled
= [P:300]
-
NO
YES
Switchpoint reached
= [P:302]
-
NO
YES
Excess temperature
-
No excess temperatures
Excess temperature turbopump = [P:305]
Excess temperature turbo-electronics = [P:304]
Excess temperature turbopump and turbo-electronics
Ultimate speed reached
= [P:306]
-
NO
YES