11
Check that the cable you use has the above colour coding pins 1 through
to 8. If an alternative colour coding has been used make sure to record the
colour which corresponds to each pin to avoid misconnection at the pool
controller or heater. If an alternative cable is used make sure the analogue
input and ground are a twisted pair.
The 24V connection is only to be used as a reference for the digital inputs –
DO NOT power external equipment from this supply rail.
Digital Control Inputs
The 3 digital inputs allow for overriding the dial speed setting. To set one of
these inputs either:
1. Connect an isolated 24V supply between ground and the digital input pin
2. Connect the switched contacts of a relay between the 24V pin and the
digital input
The fixed speeds (as a proportion of full speed) are:
Input 1
(Pin 7)
Input 2
(Pin 6)
Input 3
(Pin 3)
Output Speed
0
0
0
Dial
0
0
24V
33%
0
24V
0
50%
0
24V
24V
Backwash
24V
0
0
100%
24V
0
24V
67%
24V
24V
0
83%
24V
24V
24V
Change Boost Time
