5 Function blocks
5.17 HY - Year Time Switch
Control Relay easy800
11/11 MN04902001Z-EN
www.eaton.com
203
5.17 HY - Year Time Switch
An easy800 device is fitted with a real-time clock that you can use in the
circuit diagram as a year and weekly timer.
Read the description of the inputs/outputs in the following tables
If you have to implement special on and off switching functions on public
holidays, vacations, company holidays, school holidays and special events,
these can be implemented easily with the year time switch.
easy800 device allows for the use of up to 32 function blocks of type year
time switch.
For each year time switch four channels A, B, C and D are available.
You can choose an on and off switching time for every channel. These
channels of a year time switch all act jointly on the contact Q1 that you
include in the circuit diagram. The channels are set via the parameter display
or easySoft.
The year time switch can:
•
Switch at recurring intervals by switching on and off for individual days,
months, or years.
•
Switch for continuous periods of time by remaining continuously
switched on from the start of any user-defined day until the end of any
user-defined day, month, or year.
Behaviour in the event of a power failure
The time and date are backed up in the event of a power supply failure and
continue to run. This means that it will continue to run in the event of a
power failure, although the time switch relays will not switch.
→
The procedure for setting the time
section , “Setting time and date”, page 313.
Year time switch HY1…HY32 (Hora Year)
Boolean inputs/outputs
Parameters
Contact
Coil
Input value
Output value
Q1
“1“ if the on condition is fulfilled
On/off date
+
→
The parameters for the switch-on and switch-off times for
recurring intervals are configured in one single channel for each.
The parameters for the switch-on and switch-off times for a
continuous period of time are configured in two neighbouring
channels. If you enter the ON information on channel A, the OFF
information must be entered on channel B; likewise, if the ON
information is on channel B, the OFF information must be on
channel C.