Grundfos RSI - Page 104

8.1.13 Group 3.12: Timer functions
The time functions (Time Channels) in the RSI give
you the possibility to program functions to be
controlled by the internal RTC (Real Time Clock).
Practically every function that can be controlled by a
digital input can also be controlled by a Time
Channel. Instead of having an external PLC
controlling a digital input you can program the
"closed" and "opened" intervals of the input internally.
The functions of this parameter group can
be made the fullest advantage of only if
the battery (option) has been installed and
the Real Time Clock settings have been
properly made during the Startup Wizard
(see section Startup wizard parameter
description). It is not recommended to use
these function without battery backup
because the drive's time and date settings
will be reset at every power down if no
battery for the RTC is installed.
Time channels
The on/off logic for the Time channels is configured
by assigning Intervals or/and Timers to them. One
Time channel can be controlled by many Intervals or
Timers by assigning as many of these as needed to
the Time channel.
P
1
2
3
4
5
6
8
7
9
12
10
11
TM083063
The intervals and timers can be assigned to time
channels in a flexible way. Every interval and timer
has its own parameter for assigning to a time
channel
Pos. Description
1 Assign To Channel
2 Interval 1
3 Interval 2
4 Interval 3
5 Interval 4
6 Interval 5
7 Timer 1
8 Timer 2
9 Timer 3
10 TimeChannel 1
11 TimeChannel 2
12 TimeChannel 3
Intervals
Every interval is given an "ON Time" and "OFF Time"
with parameters. This is the daily time that the interval
will be active during the days set with "From Day" and
"To Day" parameters. E.g. the parameter setting
below means that the interval is active from 7 am to 9
am every weekday (Monday to Friday). The Time
Channel to which this Interval is assigned will be seen
as a closed "virtual digital input" during that period.
ON Time: 07:00:00
OFF Time: 09:00:00
From Day: Monday
To Day: Friday
Timers
Timers can be used to set a Time Channel active
during a certain time by a command from a digital
input (or a Time Channel).
104
English (GB)