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Electrical devices EIB should only be connected and
mounted by an EIB specialist. Manipulations and modi-
fications will result in loss of warranty. The
national specifactions and applicable safety regulations
must be observed.

Despite  elaborate  safety  precautions, exceptionally  strong
electrical  fields  may  cause  interference  with  the  microprocessor-
controlled time switch. We therefore recommend that you observe
the following points before installation:

➪ 

Suppress interference of inductive loads by means of an
RC filter

➪ 

Use a separate line for the mains voltage supply

➪ 

Do not install device in close proximity to sources of interferen-
ce, e.g. transformers, contactors, PCs and TV sets.

➪ 

If interference occurs, we recommed  that you  carry out a RESET
(chapter 4.7) before putting the device back into operation

2.0 MOUNTING INSTRUCTIONS

2.1 Safety information:

2.2 Bus-connection:

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Summary of Contents for 7521 20 06

Page 1: ...er winter time adjustment r summer f winter 8 Bus connection 9 Minute display 10 Switching status display ON o OFF p channel K1 11 Switching status display ON o OFF p channel K2 12 Hour setting 13 Minute setting 14 General deletion RESET Attention this button deletes all stored data 15 Channel K2 16 Channel K1 20 7521 20 06 2 3 4 5 7 6 9 8 10 11 12 13 14 15 1 16 Res 1 2 3 4 5 6 7 1 2 3 4 5 6 7 d h...

Page 2: ...program 4 3 Interrogation program 4 4 Change program 4 5 Individual deletions 4 6 General deletion of all switching times 4 7 General deletion RESET 5 0 Switching functions 5 1 Override ON OFF telegram 5 2 Permanent ON OFF telegram 5 3 Holiday program 5 4 Breaking off the holiday program 6 0 Summer winter time adjustment 6 1 Selection table for the automatic summer winter time adjustment 6 2 Chang...

Page 3: ...a weekly clock permanent program retention by means of EEPROM programmed switching times are retained for a period of approx 10 years even in the event of a power failure or insuffi cient battery reserve automatic program recall 99 days holiday program programmable 99 days ahead over ride switching permanent switching ON OFF battery reserve by means of lithium cell approx 6 years 1 0 DESCRIPTION 1...

Page 4: ...5 C 45 C 5T45 Class of protection II acc to EN 60335 when mounted System of protection IP 20 acc to EN 60529 Technical data on device nameplate may vary please check Subject to technical alterations 1 3 Technical data EMC Advice 1 4 Dimensioned drawing 23 The time switches are in accordance with the European directives 73 23 EEC Low Voltage Directive and 89 336 EEC EMC Directive If the time switch...

Page 5: ...croprocessor controlled time switch We therefore recommend that you observe the following points before installation Suppress interference of inductive loads by means of an RC filter Use a separate line for the mains voltage supply Do not install device in close proximity to sources of interferen ce e g transformers contactors PCs and TV sets If interference occurs we recommed that you carry out a...

Page 6: ...with the clock symbol If no buttons are pressed for a certain length of time in the checking or programming mode the display is autmatically reset to automatic mode after approx 40 sec The device then assumes the switching status dictated by the program When setting the time or programming the fast forward function is obtained by holding down button h or m for more than 4 sec The o symbol indicate...

Page 7: ...ties 3 8 Identification of automatic summer winter time adjustment r Summer time symbol f Winter time symbol 26 A A permanent switch setting takes priority over all other programs B A holiday program takes priority over a switching preselection or the automatic program C Manual switching changes the switching status until the next contrary switching command D If the switch on and switch off time a...

Page 8: ...ected consumer is to switch in channel K1 on o at 6 30 on Monday 1 Tuesday 2 Wednesday 3 and Friday 5 4 0 PROGRAMMING 4 1 Programming in the week program 1 9 10 d 1 2 3 4 5 6 7 Prog 1 2 3 4 5 6 7 d 1 2 3 4 5 6 7 4 Prog 1 2 3 4 5 6 7 5 d 1 2 3 4 5 6 7 6 d 1 2 3 4 5 6 7 7 Prog 1 2 3 4 5 6 7 8 m 1 2 3 4 5 6 7 Prog 1 2 3 4 5 6 7 Prog 1 2 3 4 5 6 7 2 11 12 13 1 2 3 4 5 6 7 C1 Prog 1 2 3 4 5 6 7 3 h 1 2...

Page 9: ...2 3 4 5 6 7 2 8 d 1 2 3 4 5 6 7 9 Prog 1 2 3 4 5 6 7 10 h 1 2 3 4 5 6 7 m 1 2 3 4 5 6 7 11 Prog 1 2 3 4 5 6 7 12 1 2 3 4 5 6 7 13 Automatik Aus K1 K1 K1 K2 K2 Note Further switch times can be programmed as before For programming channel 2 use the button K2 When all 36 memory locations are full the word End appears in the LCD display If a switch on and switch off time are programmed simulta neously...

Page 10: ...urs and switch Off again at 8 30 hours p 4 2 Programming in the day mode 3 4 8 7 9 h m h m Prog 1 Prog 2 C1 5 Prog 6 2X C1 10 K1 K2 K1 K2 K1 K2 K1 K2 K1 K1 K2 With button K1 a choice can be made while programming whether a switch on symbol o or a switch off symbol p should be effected For programming channel 2 use the button K2 29 K1 ...

Page 11: ...ogram interrogation 4 4 Program change 5 Prog 1 2 3 4 5 6 7 1 1 2 3 4 5 6 7 2 h 1 2 3 4 5 6 7 1 2 3 4 5 6 7 3 m Prog 4 1 2 3 4 5 6 7 K1 K2 K1 K2 K1 K2 K1 K2 K1 K2 Illustration Picture 1 Mo tue wed fri at 6 30 hours switch on in K1 Picture 2 3 change Mo tue wed fri at 9 45 hours switch off Change block formation Press button d several times with only one cursor is still blinking Place cursor above ...

Page 12: ... time and the selected time adjustment rule remain General deletions off all switching times Press the button Prog Press buttons d h m simultaneously Now you are able to program change to automatic mode with button n 4 6 General deletion of all switching times 4 7 GENERAL DELETION RESET Deletion of all stored data Press button Res without operation voltage Deletion of summer winter time adjustment...

Page 13: ...g condition An over ride switching is corrected by the next contradictory switching command K2 K1 K2 K1 K2 K2 5 5 5 2 Permanent ON OFF telegram Cancelation of permanent switching First hold button m Press button K1 or K2 until the dat disappears After cancellation of a permanent switching the time switch effects a program recall This results in the time switch checking the stored program and imple...

Page 14: ...n Monday a holiday program is activated which is effective from Friday for a period of 2 days For the period of setting the button h must be held down If the holiday program is to be broken off the display of the holiday program must be set back to 00 00 with the buttons d h m as described above The symbol h goes out After cancellation of a permanent switching the time switch effects a program rec...

Page 15: ...mer winter time adjustment rule will then appear in the LCD display e g dat1 Press button K1 to change the adjustment rule Store with button Prog Change the year with button d Store with button Prog Change the current day with button d Change the month with button m Store with Prog Set Beginning of Beginning of Appl ting area summer time winter time bereich dat up Last Sun Last Sun EU to 12 95 in ...

Page 16: ...mer winter time adjustment Weekprogram see 2 The button K1 can be used to set the required time adjustment rule from the table in Chapter 6 1 see 4 Button d can be used to set the current day of the week 1 Monday 2 Tuesday 7 Sunday Dayprogram see 4 Don t use button d 1 2 3 X RES K1 Prog m 1 2 3 4 5 6 7 5 x d 5 x d 5 5 5 h 3 4 5 6 7 K1 K2 2 time adjustment z B 3 minutes days automatic K1 K2 ...

Page 17: ...automatic summer winter time adjustment Weekprogram see 2 The button K1 can be used to set the required time adjustment rule from the table in chapter 6 1 see 9 Button d can be used to set the current day of the week 1 Monday 2 Tuesday 7 Sunday Dayprogram see 9 Don t use button d 5 5 5 5 Res d Prog K1 d Prog m Prog 1 3 2 4 5 6 7 8 9 10 11 h m K1 K2 2 d 9 9 10 11 12 K1 K2 ...

Page 18: ...ter time adjustment If no automatic adjustment has been selected the time can be corrected manually 1 hour First hold button d Change with h or m the current hours h d 1 h 1 2 3 4 5 6 7 1 h m d 1 2 3 4 5 6 7 K1 K2 K1 K2 37 ...

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