Unitec C-Start Installation Manual - Manual (Page 14)

C - S T A R T
Document Number: CST1001 10
3.3.2 Wiring the Wash Relay Interface
To wire the wash relays, remove the screw terminal plug from the J17 connector and
install the wires from the PLC to the appropriate pin numbers per the table below.
Replace the plug in J17 when finished.
Table 1. Wash Relays
Pin Signal
Pin 1 Wash Output #1
Pin 2 Wash Output #2
Pin 3 Wash Output #3
Pin 4 Wash Output #4
Pins 5-8 Spare Option Relays (Outputs 5-8
respectively)
Pin 9 Wash Relay Common
Pin 10 N/A
3.3.3 Wiring the Wash-In-Use Interface
Wash equipment requires a reset circuit. This circuit is generally identified as the
“Wash-In-Use” (WIU) signal. It is not uncommon for values of this voltage to be as
much as 115-120 VAC, so it is extremely important to verify that there is no power
applied to any of the wash components before proceeding.
To wire the wash in use and fault inputs, remove the screw terminal plug from the J18
connector and install the wires from the PLC to the appropriate pin numbers per the
table below. Replace the plug in J18 when finished.
Document Name: C-Start Installation Manual