Mounting and Installation
Page 31 of 102
6.3.5 Power In and Relay Output Termination
All electrical wiring shall be performed by a licensed electrician, in accordance with local and national electric codes.
6.3.5.1 Overview
The power/relay section of the controller is shown in Figure 18 without wiring. Here we can see the labels on the controller
circuit board indicating (from
right
to
left
) power in, power out and relays R1 through R5. See also figures 17B and 17C.
The two large orange terminal blocks on the right each have 3 levels;
L
ine,
N
eutral and Ground (
PE
). Input power is
connected to the right most row of this block. See Figure 20.
In the USA, this connection is prewired in the factory for use with 120VAC. However, the input power supply will
accommodate 100 to 230VAC at 50 to 60 Hz. No controller adjustment is required. Use wire/cables/plugs that are matched to
the power you are using. See also
6.3.6.4 Connecting a Power Cord.
L
ine
N
eutral
G
round
Figure 18 Power/Relay section
Note: The terminal connectors have been removed from
Figure 19
Power
Figure 20 Factory installed
relays R3, 4 and 5 for clarity. See them in Figure 23.
Block
Power
Input power is fed through the circuit board to the Relay Fuse located above the Power block, then back to the Power block
’
s
three output terminals. (See Figure 19) The main circuit board under the Power block ties all 4 Neutrals together and all 4 PE
(ground) terminals together. (See figure 17B)
The three fuse powered outputs can be used to power the dry contacts on relays R3, R4 and R5. See also figure 25.
Fused power is also connected to the common tips of R1 and R2. These r
elays are ‘powered’ relays.
See Figure 17B
All 5 relays can be used for pumps and solenoids as well as motor operated valves (MOV). MOV terminations are explained in
section
6.3.5.3 Wiring Relays R1 and R2 for a Motor Operated Valve
, and section
6.3.5.5 Wiring Relays for Externally
Powered Motor Operated Valves (MOV).
The following wiring diagrams and information show typical configurations, but not all possible
combinations of this versatile controller.