17
Access to these terminals is in close proximity to the mains connectors which carry line voltage capable of
causing personal injury or damaging the equipment if contact is made. Power should be tur ned o when
accessing this area.
External Supply Range:
18-30V AC (24V AC+/- 20%)
9-30V DC (12/24V DC +/- 20%)
Figure 6: Wiring Diagram for Automation Control System Inputs
UI DIGITAL
INPUT CONNECTOR
J202
STEP 1
(pin 1)
STEP 2
(pin 2)
STEP 3
(pin 3)
OVER RIDE
(pin 4)
COMMON
(pin 5)
Vac or
VDC
GND
EXTERNAL SUPPLY
Automation System or
Solar System Controller
Pump Controller
Figure 7: Automation Control System Input Connector
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