Satchwell IAC 600, Manual

Page: 14 / 24

Outside Air
Temperature
°
C
Water
Temperature
°
C
OUTSIDE
TEMP.
SUPPLY SET
VALUE
1: IN 0
2: IN 5
3: IN 20
OUT 80
OUT 65
OUT 20
Settings 4 to 11 set to "---"
(unused).
EXAMPLE COMPENSATION SET-UP
To configure a controller module to operate a compensation scheme
connect the modules as follows:
Water/Air Supply sensor connected to controller module main sensor
input.
Outside sensor connected to RPW input via a look-up table module.
Wind sensor connected to the 0 to 10 Volt reset input (optional).
Other inputs and outputs would be connected as for normal control
schemes.
Example Look-Up Table settings for the graph below:-
APPLICATIONS
The IAC has a number of preset applications built in. The preset applications are selected from the 8 way bit switch on the IAC.
It is important to note that any application may be customised by using the computer and it will be stored in the IAC even in the event of a
power failure. The supplied applications are merely a starting point for a system but if the supplied application suits your system it may be
used as it stands.
Hardware Preset Applications
There are currently 4 preset applications that can be selected from the 8 way bit switch and they are as follows:-
Preset 0 – Fully configurable
No links are made between modules. This preset should be chosen if you wish to configure the IAC completely.
APPLICATION NOTES
1. If an application is to be used on an IAC via a computer select software preset 0. Use the configuration library in the Satchnet Computer
Software to load the required preset application from disk. Then send the configuration to the controller.
2. Most applications include one or more timeschedules. If the IAC is connected to a computer then the IAC will operate on its own
timeschedule. If it is not then the IAC will default to its occupied state.
3. Most applications can be used as single stage if required by setting the unused stage as follows:-
Proportional Band = 10,000
Integral Action Time = 0
Derivative Action Time = 0
Ramp Time = 0
4. When outputs are duplicated either the 24Vac or 0 to 10Vdc output can be used as required as they operate in parallel.
DS 2.951A 14 - 24 05/98