12
C1
X1
X2
X3
X4
C2
X5
X6
C4
Y4
X7
X8
C3
Y1
Y2
Y5
Y6
C1
NC1
NO1
C2
NC2
NO2
C3
NC3
NO3
C4
NC4
NO4
PLC
(FRONT)
OUTPUT
MODULE
24v
+
-
GND
1
2
3
4
BLK
WHT
COM
AC SOURCE
1 PHASE
M
1/3 HP
1 phase
Flow Switch
.07gpm off
Pressure Switch
60psi on - 40 psi off
Solenoid Valve
Permeate
Dump
Solenoid Valve
Inlet Flow
Reset
Button
Step Down
Transformer
Warning Light
GND
BLK
COM
WHT
BLK
WHT
COM
BLK
WHT
COM
24v
110 - 240 VAC
Y3
PLC
(BOTTOM)
GND
GND
Figure 6 — Unit Flow Chart
Figure 7 — Electrical Diagram 110V
Figure 8 — Electrical Diagram 220V
C1
X1
X2
X3
X4
C2
X5
X6
C4
Y4
X7
X8
C3
Y1
Y2
Y5
Y6
12
12
11
14
A1
A2
PLC(FRONT)
1
2
BROWN
BLUE
AC SOURCE
1 PHASE
M
1/3 HP
1 phase
Solenoid
Valve
Permeate
Dump
Solenoid
Valve Inlet
Flow
Pump Motor
Reset Button
Warning Light
GND
BROWN
BLUE
Y3
PLC
(BOTTOM)
GND
24v
GND
-
RELAY
GND
220 -
240 VAC
24v
WHT
Center
BLK/BARE
BLUE
BROWN
Step Down
Transformer
3
WIRE
NUT
8
LEVER NUT
14
11
6
LEVER
NUT
5
LEVER
NUT
7
LEVER NUT
TERMINAL BLOCK
+
Output
LED Color
Meaning
Normal Running Condition
PWR
Green
On when the units power cord is plugged in
ON
RUN
Green
On if PLC is powered with switch in run position
ON
ERR
Green
On when PLC is not functioning properly
OFF
X1
Green
On when the pressure-switch is closed telling PLC to make water
ON
X2
Green
On when the fl ow-switch is closed signaling good fl ow
ON
X3
Green
On when the reset button is being pressed down
OFF
Y1
Red
On when the Inlet solenoid is being signaled by PLC to open (make RO-water)
ON
Y2
Red
On when the permeate rinse solenoid is being signaled by PLC to open (rinse)
On for 25 seconds then OFF
Y3
Red
On when The service indicator light is being signaled by PLC to turn on
OFF
NO1 (110-120VAC)
Red
On when the motor/pump is being signaled by PLC to turn on (make RO water)
ON
Y5 (220-240VAC)
Red
Advanced Diagnosis for Certifi ed Technicians ONLY
Caution/Warning: High Voltage in the Control Box
Summary of Contents for ScaleGard HP
Page 19: ...19 Notes...
