Danfoss VLT 6000 HVAC Series Design Manual

Also see for VLT 6000 HVAC Series: Instruction manual Operating instructions Operating instructions Instruction manual Quick setup manual

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Danfoss VLT 6000 HVAC Series Design Manual Manual pdf 182 page image

Description of Real Time ClockNB!Please note the following parameters areonly displayed if the real time clock optionis fitted! The real time clock can show thecurrent time and date and weekday. Theavailable digits stipulate how comprehen-sive the readout can be.Further more the RTC is used to execute events basedon time. A total of 20 events can be programmed.Firstly the current time and date must be programmedin parameter 780 and 781, please see description ofparameters. It is important that both parameters areset. Then parameter 782 through 786 and 789 areused to program the events. First set the week-day(s)in parameter 782 when the action shall take place.Then set the specific time in parameter 783 for the ac-tion, then the action itself in parameter 784. In param-eter 785 set the time for the termination of the actionand in parameter 786 the off-action. Please note theon action and off action must be related. E.g. it is notpossible to change setup via the on-action in param-eter 784 and then stop drive in parameter 786. Thefollowing selection refers to the choices in parameter784 and 786. Hence selection [1] to [4] are related, [5]to [8] are related, [9] to [12] are related, [13] to [16] arerelated and finally [17] and [18] are related.* NO ACTION DEFINED [0]SETUP 1 [1]SETUP 2 [2]SETUP 3 [3]SETUP 4 [4]PRESET REF. 1 [5]PRESET REF. 2 [6]PRESET REF. 3 [7]PRESET REF. 4 [8]AO42 OFF [9]OA42 ON [10]AO45 OFF [11]AO45 ON [12]RELAY 1 ON [13]RELAY 1 OFF [14]RELAY 2 ON [15]RELAY 2 OFF [16]START DRIVE [17]STOP DRIVE [18]It can be chosen if an action, on start-up, shall be exe-cuted even if the ON time has been passed some timeago. Alternatively choose to wait for the next forthcoming ON action time before executing the next com-ing action. This is programmed in parameter 789. It is,however, possible to have several RTC actions withinthe same period. E.g. relay 1 ON is executed in the firstevent at 10:00 and relay 2 ON is executed in the sec-ond event at 10:02, before the first event is terminated.Parameter 655 will show the fault log with the RTC,this parameter is directly related to parameter 616.Only here the log is based on the real time clock, notrunning hours from zero. This means a date and timeis shown.780 Set clock(SET CLOCK)Value:000000.0000 - 991231.2359 000000.0000Function:The time and date is set and displayed in this param-eter.Description of choice:Enter the current date and time to start the clock asfollows: YYMMDD.HHMMRemember to also set parameter 781.781 Set weekday(SET WEEK DAY)Value:MONDAY [1]TUESDAY [1]WEDNESDAY [3]THURSDAY [4]FRIDAY [5]SATURDAY [6]SUNDAY [7]Function:The week day is set and displayed in this parameter.Description of choice:Enter the week day to start the clock in conjunction withparameter 780.782 Weekdays(WEEKDAYS)Value:OFF [0]MONDAY [1]TUESDAY [1]VLT® 6000 HVAC Series= factory setting, () = display text, [] = value for use in communication via serial communication port182 MG.61.B5.02 - VLT ® is a registered Danfoss trademark