6
I/O List
The following table is a list of the inputs and outputs on the main board. The list shows the reference name
for each input or output, the description and the terminals strip number/ pin connections.
Output Description Connection
R1
Inlet Valve
P6, 4-6
R2
RO Pump
P6, 1-3
R3
Flush Valve
P7, 4-6
R4
Aux/Boost Pump
P7, 1-3
R5
Divert Valve
P8, 4-6
R6
Alarm
P8, 1-3
Input
Description Connection
S1
Lo PSI Switch
P2, 1-2
S2
Hi PSI Switch
P2, 3-4
S3
Tank Full High
P2, 5-6
S4
Tank Full Low
P3, 1-2
Input
Description Connection
S5
Tank Low
P3, 3-4
S6
Pretreat Lockout
P3, 5-6
Conductivity Description
C1 Feed P16
C2
Permeate P17
Temperature Description
T1
Feed Temperature
Part of C1
Pressure Description
P1
Inlet
P4, 1-2
P2
Pump Feed
P4, 3-4
P3
Pump Discharge
P4, 5-6
P4
Concentrate
P9, 1-2
P5
Misc.
P9, 3-4
Pump and Valve Relay Outputs
The S200 supplies relay outputs to control pump and solenoid valves.
NOTE:
The relays output the same voltage as the AC power supplied to the board. If the solenoids operate
on a different voltage, a relay will need to be added to operate the valves.
WARNING: The pump relay outputs cannot operate motor loads directly.
A contactor must be supplied
to operate a pump.
Pump Wiring
The RO pump contactor connects to NO and L2 of R2, terminals 1-2 of P6. If an auxiliary pump or boost pump
is used, the contactor for the aux/boost pump will connect to NO and L2 of R4, terminals 1-2 of P7.
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Содержание 200 Series
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