Satchwell IAC 600, Руководство пользователя

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TEMPERATURE (RESISTIVE) INPUT USED AS A
DIGITAL INPUT ANALOGUE INPUT USED AS A DIGITAL INPUT
Fig.8 Fig.9
REMOTE SETTING TEMPERATURE SENSING AND REMOTE SET
VALUE FROM COMMON ROOM SENSOR
Fig.10
Fig.11
Example shown for inputs 1 and 2 and Analogue Output 1
other Temperature (resistive) inputs and Analogue
Outputs may be substituted if required.
*
CONNECTION DIAGRAMS
(Refer to Wiring Precautions on Page 22)
BASIC WIRING DIAGRAM FOR IAC BASE UNIT
Four 0 to 10Vdc
Outputs 0V reference for
Actuators is from any IAC
Ground Terminal
Supply
Eight Digital Inputs
Pulse Counting,
Alarms, Overrides
etc.
Output
Eight Digital (Triac)
0V Outputs
Lights, Fans, Actuators
(2 outputs for each
Actuator) and sequencing.
Connect Actuator or
Contactor common to a
24Vac supply.
DDH, DRH, DOW
Six 0 to 10Vdc
inputs
DRT, DDT, DWT, DST,
DOT, DOS, RPW
Six Resistance Inputs
Fig.7
Connect to any IAC
Isolated Ground Terminal
Connect to any IAC
Ground Terminal
Connect to any
IAC Ground
Terminal
Note:-
The actual terminal block is a
double block running across the
bottom of the IAC. The top (double
height) block contains terminals 1
to 33 and the bottom (single
height) contains 34 to 41 and all of
the Ground and Isolated Ground
terminals. Terminal numbers run
from left to right.
6
Ensure Terminal 2 is earthed.
66
The 24Vac Supply must have a
2A fuse. The transformer must
conform to EN 60742 - DS 25.00/
25.001.
* LAN A and LAN B should be
screened with the screen earthed
only on a verified good earth at the
computer or MIU. LAN A and B
screens should be connected to
the isolated Ground Terminals
of each of the IACs on the LAN.
See DS 2.10A/2.951A.
Terminal 5 is not used.
If an earth busbar is to be used
then it must be connected to a
single Ground Terminal on the IAC
by a single cable which should be
as short as possible and no more
than 150mm long. Earth wire
minimum 30/0.25 (1.5mm
2
)
Stranded Cable.
Digital
Input
OPEN
CLOSED
2k2*
Ω
±
10%
4k7*
Ω
±
10%
A threshold module should be set as below to create the digital signal.
* Resistances correct for the switching values shown below.
< 19
°
C contact open
≥
19
°
C contact closed
A threshold module should be set for the values shown below
(note 5V = 50) to create the digital signal.
* Resistances correct for the default switching values of the IAC.
< 5Vdc contact open
≥
5Vdc contact closed
RPW 4425 (5 to 50
°
C)
Remote Set Value
LED Supply
Common
Room Temperature
DRT 3652 only
OPEN
CLOSED
180*k
Ω
±
10%
Digital
Input
DS 2.951A 20 - 24 05/98