User Manual

Function blocks
195
08/04 AWB2528-1423GB
easy provides 32 seven-day time switches HW01 to HW32
for a total of 128 switching times.
Each time switch has four channels which you can use to set
four on and off times. The channels are set via the parameter
display.
The time is backed up in the event of a power failure and
continues to run, although the time switch relays will no
longer switch. The contacts are kept open when de-
energized. Refer to Chapter “Technical data”, Page 317 for
information on the buffer time.
Caution!
The 7-day time switch of easy800 devices of device version
03 or lower have the following characteristics.
Requirement:
• The function block was entered directly on the easy800.
• At least one channel was not assigned parameters.
• The on time is to be set from 23:59 on Saturday to
Sunday after 00:00.
Behaviour:
• The time switch switches off on Sunday at 00:00.
• This cannot be the required off time!
Solution:
• Assign all time switch channels with the required on and
off times.
• Use the program EASY-SOFT (-PRO) or
EASY-SOFT (-PRO) for making the entry.
In this case, this behaviour does not occur.