9
SIAT75001 SiA Smart Controller
Revision: TH1
QUICK START GUIDE
Thank you for purchasing an SiA Smart Controller.
INSTALLATION
Physical Installation
Use the DIN Rail mounts at the back of the controller to mount timer within a suitable enclosure.
Ensure the enclosure provides a dry, well-ventilated environment that prevents
direct sunlight reaching timer.
The SIAT75001 must not be installed or operated in a defined Hazardous Area.
Important Information Before Connecting Power to the Controller
1. Ensure the correct rated fuse is installed in the Fuse Holder.
Refer to Fuses Section for details
2. Ensure your have correctly wired the power connections to the
Power Terminal Header (PTH).
3. Ensure only either 12 VDC or 24 VDC power is connected to the
“IN” terminals.
NOTE:
As the controller will always return to the state it was last in before power was disconnected, the timer could
give an output to the Motor Terminals on the PTH immediately when the power is connected. To avoid this, fit an
On/Off isolating switch between the timer’s Motor Terminals on the PTH and the motor’s terminals.
Fuses
It is very important that the correctly sized fuse is installed on the Controller. We suggest using Littlefuse ATO
Automotive Quick Acting Fuses.
Never use a fuse greater than 20 amps.
Choose a fuse that is suited for the protection of other equipment within the electrical circuit (providing it calls for
a fuse of no more than 20amps). Usually, the most important piece of equipment within the timer circuit is the DC
Motor. To work out the appropriate fuse rating to protect the motor, refer to the data-plate attached to the motor.
For SiA PMDC motors the following table is a guide:
Power
(watts)
Voltage
Recommended
Max. Fuse Rating
25
12
5
25
24
2
40
12
5
40
24
3
60
12
10
60
24
5
Power
(watts)
Voltage
Recommended
Max. Fuse Rating
90
12
10
90
24
5
120
12
15
120
24
7.5
HE
24
5
If the motor power selected requires a fuse greater than 15 amps, SiA recommends the use of a suitable relay that
can carry the extra load required.
SECTION 3 PUMP OPERATION
3.0 Operating Pump with SiA Timer/Controller: SIAT75001